diff --git a/docs/programming-oak.md b/docs/programming-oak.md
index 1ef3e4d71c1..d7dceb3237e 100644
--- a/docs/programming-oak.md
+++ b/docs/programming-oak.md
@@ -112,9 +112,9 @@ next section.
 ### Generated gRPC service code
 
 The Oak SDK includes a `proto_rust_grpc` tool (forked from
-https://github.com/stepancheg/rust-protobuf) which takes a
-[gRPC service definition](https://grpc.io/docs/guides/concepts/) and
-autogenerates Rust code for the corresponding Oak Node that implements that
+https://github.com/stepancheg/rust-protobuf and wrapped in the `oak_utils`)
+which takes a [gRPC service definition](https://grpc.io/docs/guides/concepts/)
+and autogenerates Rust code for the corresponding Oak Node that implements that
 service.
 
 Adding a `build.rs` file to the Node that invokes this tool results in a
@@ -124,10 +124,10 @@ generated file appearing in `src/proto/<service>_grpc.rs`.
 [embedmd]:# (../examples/hello_world/module/rust/build.rs Rust /fn main/ /^}/)
 ```Rust
 fn main() {
-    protoc_rust_grpc::run(protoc_rust_grpc::Args {
+    oak_utils::run_protoc_rust_grpc(protoc_rust_grpc::Args {
         out_dir: "src/proto",
         input: &["../../proto/hello_world.proto"],
-        includes: &["../../proto", "../../third_party"],
+        includes: &["../../proto", "../../../../third_party"],
         rust_protobuf: true, // also generate protobuf messages, not just services
         ..Default::default()
     })
diff --git a/examples/Cargo.lock b/examples/Cargo.lock
index f04b9b348f3..7317bebb0e6 100644
--- a/examples/Cargo.lock
+++ b/examples/Cargo.lock
@@ -11,6 +11,7 @@ dependencies = [
  "oak 0.1.0",
  "oak_abi 0.1.0",
  "oak_log 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust-grpc 0.7.0",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -238,8 +239,8 @@ dependencies = [
  "oak_log 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust-grpc 0.7.0",
- "rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.97 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -493,6 +494,7 @@ dependencies = [
  "oak_derive 0.1.0",
  "oak_log 0.1.0",
  "oak_tests 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust-grpc 0.7.0",
  "serial_test 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -596,6 +598,11 @@ dependencies = [
  "rusty-machine 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "maplit"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "matrixmultiply"
 version = "0.1.15"
@@ -680,6 +687,7 @@ dependencies = [
  "fmt 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak_abi 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -690,6 +698,7 @@ dependencies = [
 name = "oak_abi"
 version = "0.1.0"
 dependencies = [
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -720,6 +729,7 @@ dependencies = [
  "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak 0.1.0",
  "oak_abi 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -743,6 +753,17 @@ dependencies = [
  "simple_logger 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "oak_utils"
+version = "0.1.0"
+dependencies = [
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust-grpc 0.7.0",
+ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "owning_ref"
 version = "0.4.0"
@@ -784,6 +805,7 @@ dependencies = [
  "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak 0.1.0",
  "oak_derive 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust-grpc 0.7.0",
 ]
@@ -1092,6 +1114,7 @@ dependencies = [
  "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak 0.1.0",
  "oak_derive 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust-grpc 0.7.0",
 ]
@@ -1279,6 +1302,7 @@ dependencies = [
  "oak 0.1.0",
  "oak_derive 0.1.0",
  "oak_log 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust-grpc 0.7.0",
  "rustfmt-nightly 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1721,6 +1745,7 @@ dependencies = [
 "checksum libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)" = "d44e80633f007889c7eff624b709ab43c92d708caad982295768a7b13ca3b5eb"
 "checksum lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "62ebf1391f6acad60e5c8b43706dde4582df75c06698ab44511d15016bc2442c"
 "checksum log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "c275b6ad54070ac2d665eef9197db647b32239c9d244bfb6f041a766d00da5b3"
+"checksum maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 "checksum matrixmultiply 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "dcad67dcec2d58ff56f6292582377e6921afdf3bfbd533e26fb8900ae575e002"
 "checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 3afa2af4633..3f53e76fdaa 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -28,3 +28,4 @@ oak_derive = { path = "../sdk/rust/oak_derive" }
 oak_log = { path = "../sdk/rust/oak_log" }
 oak_runtime = { path = "../oak/server/rust/oak_runtime" }
 oak_tests = { path = "../sdk/rust/oak_tests" }
+oak_utils = { path = "../sdk/rust/oak_utils" }
diff --git a/examples/abitest/module_0/rust/Cargo.toml b/examples/abitest/module_0/rust/Cargo.toml
index 218bd48f7f2..9ce46cc0028 100644
--- a/examples/abitest/module_0/rust/Cargo.toml
+++ b/examples/abitest/module_0/rust/Cargo.toml
@@ -23,4 +23,5 @@ serde = { version = "*", features = ["derive"] }
 serde_json = "*"
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust-grpc = { path = "../../../../third_party/grpc-rust/protoc-rust-grpc" }
diff --git a/examples/abitest/module_0/rust/build.rs b/examples/abitest/module_0/rust/build.rs
index c53dd354d86..effedacd7f3 100644
--- a/examples/abitest/module_0/rust/build.rs
+++ b/examples/abitest/module_0/rust/build.rs
@@ -1,8 +1,8 @@
 fn main() {
-    protoc_rust_grpc::run(protoc_rust_grpc::Args {
+    oak_utils::run_protoc_rust_grpc(protoc_rust_grpc::Args {
         out_dir: "src/proto",
         input: &["../../proto/abitest.proto"],
-        includes: &["../../proto", "../../third_party"],
+        includes: &["../../proto", "../../../../third_party"],
         rust_protobuf: true, // also generate protobuf messages, not just services
         ..Default::default()
     })
diff --git a/examples/hello_world/module/rust/Cargo.toml b/examples/hello_world/module/rust/Cargo.toml
index 037994ec49e..6182d24b2fa 100644
--- a/examples/hello_world/module/rust/Cargo.toml
+++ b/examples/hello_world/module/rust/Cargo.toml
@@ -22,4 +22,5 @@ serial_test = "*"
 serial_test_derive = "*"
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust-grpc = { path = "../../../../third_party/grpc-rust/protoc-rust-grpc" }
diff --git a/examples/hello_world/module/rust/build.rs b/examples/hello_world/module/rust/build.rs
index 8800890314d..f9cd87f2d49 100644
--- a/examples/hello_world/module/rust/build.rs
+++ b/examples/hello_world/module/rust/build.rs
@@ -1,8 +1,8 @@
 fn main() {
-    protoc_rust_grpc::run(protoc_rust_grpc::Args {
+    oak_utils::run_protoc_rust_grpc(protoc_rust_grpc::Args {
         out_dir: "src/proto",
         input: &["../../proto/hello_world.proto"],
-        includes: &["../../proto", "../../third_party"],
+        includes: &["../../proto", "../../../../third_party"],
         rust_protobuf: true, // also generate protobuf messages, not just services
         ..Default::default()
     })
diff --git a/examples/private_set_intersection/module/rust/Cargo.toml b/examples/private_set_intersection/module/rust/Cargo.toml
index 753f18ee236..acdd3721e3d 100644
--- a/examples/private_set_intersection/module/rust/Cargo.toml
+++ b/examples/private_set_intersection/module/rust/Cargo.toml
@@ -14,4 +14,5 @@ oak_derive = "*"
 protobuf = "*"
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust-grpc = { path = "../../../../third_party/grpc-rust/protoc-rust-grpc" }
diff --git a/examples/private_set_intersection/module/rust/build.rs b/examples/private_set_intersection/module/rust/build.rs
index faa97642ae5..917808f228e 100644
--- a/examples/private_set_intersection/module/rust/build.rs
+++ b/examples/private_set_intersection/module/rust/build.rs
@@ -1,5 +1,5 @@
 fn main() {
-    protoc_rust_grpc::run(protoc_rust_grpc::Args {
+    oak_utils::run_protoc_rust_grpc(protoc_rust_grpc::Args {
         out_dir: "src/proto",
         input: &["../../proto/private_set_intersection.proto"],
         includes: &["../../proto"],
diff --git a/examples/running_average/module/rust/Cargo.toml b/examples/running_average/module/rust/Cargo.toml
index 5268a990e93..6439fce745c 100644
--- a/examples/running_average/module/rust/Cargo.toml
+++ b/examples/running_average/module/rust/Cargo.toml
@@ -14,4 +14,5 @@ oak_derive = "*"
 protobuf = "*"
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust-grpc = { path = "../../../../third_party/grpc-rust/protoc-rust-grpc" }
diff --git a/examples/running_average/module/rust/build.rs b/examples/running_average/module/rust/build.rs
index 9b170a59391..781ed1b8fd1 100644
--- a/examples/running_average/module/rust/build.rs
+++ b/examples/running_average/module/rust/build.rs
@@ -1,5 +1,5 @@
 fn main() {
-    protoc_rust_grpc::run(protoc_rust_grpc::Args {
+    oak_utils::run_protoc_rust_grpc(protoc_rust_grpc::Args {
         out_dir: "src/proto",
         input: &["../../proto/running_average.proto"],
         includes: &["../../proto"],
diff --git a/examples/rustfmt/module/rust/Cargo.toml b/examples/rustfmt/module/rust/Cargo.toml
index 5c623f4bbb0..2ccdaaa7ef6 100644
--- a/examples/rustfmt/module/rust/Cargo.toml
+++ b/examples/rustfmt/module/rust/Cargo.toml
@@ -16,4 +16,5 @@ protobuf = "*"
 rustfmt-nightly = "*"
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust-grpc = { path = "../../../../third_party/grpc-rust/protoc-rust-grpc" }
diff --git a/examples/rustfmt/module/rust/build.rs b/examples/rustfmt/module/rust/build.rs
index c5e9aa65234..a19b5ef77c4 100644
--- a/examples/rustfmt/module/rust/build.rs
+++ b/examples/rustfmt/module/rust/build.rs
@@ -1,5 +1,5 @@
 fn main() {
-    protoc_rust_grpc::run(protoc_rust_grpc::Args {
+    oak_utils::run_protoc_rust_grpc(protoc_rust_grpc::Args {
         out_dir: "src/proto",
         input: &["../../proto/rustfmt.proto"],
         includes: &["../../proto"],
diff --git a/oak/server/rust/Cargo.lock b/oak/server/rust/Cargo.lock
index e5f8d93b4d9..345ff47838f 100644
--- a/oak/server/rust/Cargo.lock
+++ b/oak/server/rust/Cargo.lock
@@ -23,6 +23,11 @@ name = "fmt"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "fuchsia-cprng"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "getrandom"
 version = "0.1.14"
@@ -33,6 +38,14 @@ dependencies = [
  "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "grpc-compiler"
+version = "0.7.0"
+dependencies = [
+ "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protobuf-codegen 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.66"
@@ -46,6 +59,11 @@ dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "maplit"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "oak"
 version = "0.1.0"
@@ -54,6 +72,7 @@ dependencies = [
  "fmt 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak_abi 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -64,6 +83,7 @@ dependencies = [
 name = "oak_abi"
 version = "0.1.0"
 dependencies = [
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -75,11 +95,23 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak 0.1.0",
  "oak_abi 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "oak_utils"
+version = "0.1.0"
+dependencies = [
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust-grpc 0.7.0",
+ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.6"
@@ -125,6 +157,17 @@ dependencies = [
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "protoc-rust-grpc"
+version = "0.7.0"
+dependencies = [
+ "grpc-compiler 0.7.0",
+ "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.2"
@@ -133,6 +176,18 @@ dependencies = [
  "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand"
 version = "0.7.3"
@@ -154,6 +209,19 @@ dependencies = [
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rand_core"
 version = "0.5.1"
@@ -170,6 +238,14 @@ dependencies = [
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rdrand"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.1.56"
@@ -183,6 +259,14 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde"
 version = "1.0.104"
@@ -211,6 +295,15 @@ dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tempdir"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.1.0"
@@ -229,6 +322,16 @@ name = "unicode-xid"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "walkdir"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
@@ -248,6 +351,14 @@ name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
@@ -258,9 +369,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum fmt 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "09904adae26440d46daeacb5ed7922fee69d43ebf84d31e078cd49652cecd718"
+"checksum fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
 "checksum getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 "checksum libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)" = "d515b1f41455adea1313a4a2ac8a8a477634fbae63cc6100e3aebb207ce61558"
 "checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
+"checksum maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 "checksum ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
 "checksum proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3acb317c6ff86a4e579dfa00fc5e6cca91ecbb4e7eb2df0468805b674eb88548"
 "checksum protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6686ddd96a8dbe2687b5f2a687b2cfb520854010ec480f2d74c32e7c9873d3c5"
@@ -268,18 +381,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum protoc 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9fd83d2547a9e2c8bc6016607281b3ec7ef4871c55be6930915481d80350ab88"
 "checksum protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "30fe03ab363474c2f5d1062f5d169ba8defd1d30c161261d7c71afd8412727d8"
 "checksum quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
+"checksum rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
 "checksum rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 "checksum rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "03a2a90da8c7523f554344f921aa97283eadf6ac484a6d2a7d0212fa7f8d6853"
+"checksum rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
+"checksum rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
 "checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 "checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
+"checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 "checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
+"checksum same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
 "checksum serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
 "checksum serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "128f9e303a5a29922045a830221b8f78ec74a5f544944f3d5984f8ec3895ef64"
 "checksum syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "af6f3550d8dff9ef7dc34d384ac6f107e5d31c8f57d9f28e0081503f547ac8f5"
+"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+"checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
 "checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 "checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfbf554c6ad11084fb7517daca16cfdcaccbdadba4fc336f032a8b12c2ad80"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/oak/server/rust/Cargo.toml b/oak/server/rust/Cargo.toml
index 880bbd61fcf..0e9f2348a11 100644
--- a/oak/server/rust/Cargo.toml
+++ b/oak/server/rust/Cargo.toml
@@ -14,3 +14,4 @@ members = [
 oak = { path = "../../../sdk/rust/oak" }
 oak_abi = { path = "oak_abi" }
 oak_runtime = { path = "oak_runtime" }
+oak_utils = { path = "../../../sdk/rust/oak_utils" }
diff --git a/oak/server/rust/oak_abi/Cargo.toml b/oak/server/rust/oak_abi/Cargo.toml
index c6580251fa3..f686bc0ee70 100644
--- a/oak/server/rust/oak_abi/Cargo.toml
+++ b/oak/server/rust/oak_abi/Cargo.toml
@@ -9,4 +9,5 @@ license = "Apache-2.0"
 protobuf = "*"
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust = "*"
diff --git a/oak/server/rust/oak_abi/build.rs b/oak/server/rust/oak_abi/build.rs
index 5903f2eeeec..8b2ee51aa39 100644
--- a/oak/server/rust/oak_abi/build.rs
+++ b/oak/server/rust/oak_abi/build.rs
@@ -1,5 +1,5 @@
 fn main() {
-    protoc_rust::run(protoc_rust::Args {
+    oak_utils::run_protoc_rust(protoc_rust::Args {
         out_dir: "src/proto",
         input: &["../../../../oak/proto/oak_api.proto"],
         includes: &["../../../../oak/proto"],
diff --git a/oak/server/rust/oak_runtime/Cargo.toml b/oak/server/rust/oak_runtime/Cargo.toml
index 616335798cf..dff9b946c8b 100644
--- a/oak/server/rust/oak_runtime/Cargo.toml
+++ b/oak/server/rust/oak_runtime/Cargo.toml
@@ -13,4 +13,5 @@ protobuf = "*"
 rand = { version = "*", features = ["std"] }
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust = "*"
diff --git a/oak/server/rust/oak_runtime/build.rs b/oak/server/rust/oak_runtime/build.rs
index 5350aef8f0a..170649bbf63 100644
--- a/oak/server/rust/oak_runtime/build.rs
+++ b/oak/server/rust/oak_runtime/build.rs
@@ -1,5 +1,5 @@
 fn main() {
-    protoc_rust::run(protoc_rust::Args {
+    oak_utils::run_protoc_rust(protoc_rust::Args {
         out_dir: "src/proto",
         input: &["../../../../oak/proto/manager.proto"],
         includes: &["../../../../oak/proto"],
diff --git a/sdk/rust/Cargo.lock b/sdk/rust/Cargo.lock
index e59f6604351..15dd1124b8d 100644
--- a/sdk/rust/Cargo.lock
+++ b/sdk/rust/Cargo.lock
@@ -93,6 +93,14 @@ dependencies = [
  "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "grpc-compiler"
+version = "0.7.0"
+dependencies = [
+ "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protobuf-codegen 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.6"
@@ -127,6 +135,11 @@ dependencies = [
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "maplit"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "num-integer"
 version = "0.1.41"
@@ -163,6 +176,7 @@ dependencies = [
  "oak_abi 0.1.0",
  "oak_derive 0.1.0",
  "oak_tests 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -176,6 +190,7 @@ dependencies = [
 name = "oak_abi"
 version = "0.1.0"
 dependencies = [
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -209,6 +224,7 @@ dependencies = [
  "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "oak 0.1.0",
  "oak_abi 0.1.0",
+ "oak_utils 0.1.0",
  "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -232,6 +248,17 @@ dependencies = [
  "simple_logger 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "oak_utils"
+version = "0.1.0"
+dependencies = [
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust-grpc 0.7.0",
+ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.5"
@@ -285,6 +312,17 @@ dependencies = [
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "protoc-rust-grpc"
+version = "0.7.0"
+dependencies = [
+ "grpc-compiler 0.7.0",
+ "protobuf 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protoc-rust 2.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "quote"
 version = "0.6.13"
@@ -394,6 +432,14 @@ name = "ryu"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde"
 version = "1.0.104"
@@ -476,6 +522,15 @@ dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tempdir"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.1.0"
@@ -509,6 +564,16 @@ name = "unicode-xid"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "walkdir"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.7"
@@ -523,6 +588,14 @@ name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
@@ -558,6 +631,7 @@ dependencies = [
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)" = "d44e80633f007889c7eff624b709ab43c92d708caad982295768a7b13ca3b5eb"
 "checksum log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "c275b6ad54070ac2d665eef9197db647b32239c9d244bfb6f041a766d00da5b3"
+"checksum maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 "checksum num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
 "checksum num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "92e5113e9fd4cc14ded8e499429f396a20f98c772a47cc8622a736e1ec843c31"
 "checksum num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "6ba9a427cfca2be13aa6f6403b0b7e7368fe982bfa16fccc450ce74c46cd9b32"
@@ -582,6 +656,7 @@ dependencies = [
 "checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
 "checksum rgb 0.8.14 (registry+https://github.com/rust-lang/crates.io-index)" = "2089e4031214d129e201f8c3c8c2fe97cd7322478a0d1cdf78e7029b0042efdb"
 "checksum ryu 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "bfa8506c1de11c9c4e4c38863ccbe02a305c8188e85a05a784c9e11e1c3910c8"
+"checksum same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
 "checksum serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
 "checksum serde_derive 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)" = "128f9e303a5a29922045a830221b8f78ec74a5f544944f3d5984f8ec3895ef64"
 "checksum serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)" = "48c575e0cc52bdd09b47f330f646cf59afc586e9c4e3ccd6fc1f625b8ea1dad7"
@@ -591,11 +666,14 @@ dependencies = [
 "checksum spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44363f6f51401c34e7be73db0db371c04705d35efbe9f7d6082e03a921a32c55"
 "checksum syn 0.15.42 (registry+https://github.com/rust-lang/crates.io-index)" = "eadc09306ca51a40555dd6fc2b415538e9e18bc9f870e47b1a524a79fe2dcf5e"
 "checksum syn 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1e4ff033220a41d1a57d8125eab57bf5263783dfdcc18688b1dacc6ce9651ef8"
+"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+"checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
 "checksum winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f10e386af2b13e47c89e7236a7a14a086791a2b88ebad6df9bf42040195cf770"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfbf554c6ad11084fb7517daca16cfdcaccbdadba4fc336f032a8b12c2ad80"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 "checksum winconsole 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ef84b96d10db72dd980056666d7f1e7663ce93d82fa33b63e71c966f4cf5032"
diff --git a/sdk/rust/Cargo.toml b/sdk/rust/Cargo.toml
index 47f09b05de8..a09ea27e5bd 100644
--- a/sdk/rust/Cargo.toml
+++ b/sdk/rust/Cargo.toml
@@ -5,6 +5,7 @@ members = [
   "oak_derive",
   "oak_log",
   "oak_tests",
+  "oak_utils",
 ]
 
 # Patch dependencies on oak crates so that they refer to the versions within this same repository.
@@ -19,3 +20,4 @@ oak_derive = { path = "oak_derive" }
 oak_log = { path = "oak_log" }
 oak_runtime = { path = "../../oak/server/rust/oak_runtime" }
 oak_tests = { path = "oak_tests" }
+oak_utils = { path = "oak_utils" }
diff --git a/sdk/rust/oak/Cargo.toml b/sdk/rust/oak/Cargo.toml
index 16c41d2821a..8c01b8253c7 100644
--- a/sdk/rust/oak/Cargo.toml
+++ b/sdk/rust/oak/Cargo.toml
@@ -15,6 +15,7 @@ rand_core = { version = "*", features = ["std"] }
 serde = { version = "*", features = ["derive"] }
 
 [build-dependencies]
+oak_utils = "*"
 protoc-rust = "*"
 
 [dev-dependencies]
diff --git a/sdk/rust/oak/build.rs b/sdk/rust/oak/build.rs
index 468c2ab7392..9c7bb328c72 100644
--- a/sdk/rust/oak/build.rs
+++ b/sdk/rust/oak/build.rs
@@ -1,5 +1,5 @@
 fn main() {
-    protoc_rust::run(protoc_rust::Args {
+    oak_utils::run_protoc_rust(protoc_rust::Args {
         out_dir: "src/proto",
         input: &[
             "../../../third_party/google/rpc/code.proto",
diff --git a/sdk/rust/oak_utils/Cargo.toml b/sdk/rust/oak_utils/Cargo.toml
new file mode 100644
index 00000000000..48e0d17ec82
--- /dev/null
+++ b/sdk/rust/oak_utils/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "oak_utils"
+version = "0.1.0"
+edition = "2018"
+license = "Apache-2.0"
+
+[dependencies]
+maplit = "*"
+protoc-rust = "*"
+protoc-rust-grpc = { path = "../../../third_party/grpc-rust/protoc-rust-grpc" }
+tempfile = "*"
+walkdir = "*"
diff --git a/sdk/rust/oak_utils/src/lib.rs b/sdk/rust/oak_utils/src/lib.rs
new file mode 100644
index 00000000000..656fdc9d857
--- /dev/null
+++ b/sdk/rust/oak_utils/src/lib.rs
@@ -0,0 +1,126 @@
+//
+// Copyright 2020 The Project Oak Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+use std::collections::HashMap;
+use std::fs;
+use std::io;
+use std::path::Path;
+
+#[cfg(test)]
+mod tests;
+
+// Generates Rust `proto` files in a temporary directory using `protoc_rust`,
+// checks previously generated files and updates them if their contents have changed.
+// This is a workaround for `protoc_rust` issue that always updates files, thus provoking
+// recompilation of all dependent targets.
+// https://github.com/rust-lang/cargo/issues/6529
+// Function doesn't support nested directories since `protoc_rust` doesn't generate them.
+pub fn run_protoc_rust(args: protoc_rust::Args) -> io::Result<()> {
+    let out_path = Path::new(args.out_dir);
+
+    // Create a temporary directory.
+    let temp_dir = tempfile::tempdir()?;
+    let temp_path = temp_dir.path();
+
+    // Generate Rust `proto` files in the temporary directory.
+    let mut temp_args = args;
+    temp_args.out_dir = temp_path.to_str().expect("Temporary path error");
+    protoc_rust::run(temp_args)?;
+
+    // Copy changed Rust `proto` files to the `out_path`.
+    copy_changed_files(temp_path, out_path)?;
+
+    Ok(())
+}
+
+// Generates Rust `proto` files in a temporary directory using `run_protoc_rust`,
+// checks previously generated files and updates them if their contents have changed.
+pub fn run_protoc_rust_grpc(args: protoc_rust_grpc::Args) -> io::Result<()> {
+    let out_path = Path::new(args.out_dir);
+
+    // Create a temporary directory.
+    let temp_dir = tempfile::tempdir()?;
+    let temp_path = temp_dir.path();
+
+    // Generate Rust `grpc` files in the temporary directory.
+    let mut temp_args = args;
+    temp_args.out_dir = temp_path.to_str().expect("Temporary path error");
+    protoc_rust_grpc::run(temp_args)?;
+
+    // Copy changed Rust `grpc` files to the `out_path`.
+    copy_changed_files(temp_path, out_path)?;
+
+    Ok(())
+}
+
+// Traverses `dir` and produces a `HashMap` of filenames and their contents.
+fn get_files(dir: &Path) -> HashMap<String, String> {
+    walkdir::WalkDir::new(dir)
+        .into_iter()
+        .filter_map(|entry| entry.ok())
+        .filter(|entry| entry.path().is_file())
+        .map(|entry| {
+            let path = entry.into_path();
+            let content = fs::read_to_string(&path).expect("Read error");
+            let filename = path
+                .file_name()
+                .expect("Filename error")
+                .to_os_string()
+                .into_string()
+                .expect("OsString error");
+            (filename, content)
+        })
+        .collect()
+}
+
+// This function returns a list of files in the `new_dir` that are different from files with
+// same names in the `old_dir`.
+fn get_changed_and_removed_files(old_dir: &Path, new_dir: &Path) -> (Vec<String>, Vec<String>) {
+    let mut old_files = get_files(old_dir);
+    let changed_files = get_files(new_dir)
+        .iter()
+        .filter_map(|(filename, new_content)| {
+            old_files
+                .remove(filename)
+                .map_or(Some(filename), |old_content| {
+                    if *new_content == old_content {
+                        None
+                    } else {
+                        Some(filename)
+                    }
+                })
+        })
+        .cloned()
+        .collect::<Vec<String>>();
+    let removed_files = old_files.keys().cloned().collect::<Vec<String>>();
+    (changed_files, removed_files)
+}
+
+// This function copies changed files from `src_dir` to `dst_dir` directory and removes files
+// from `dst_dir` that are not present in `src_dir`.
+fn copy_changed_files(src_dir: &Path, dst_dir: &Path) -> io::Result<()> {
+    let (changed_files, removed_files) = get_changed_and_removed_files(dst_dir, src_dir);
+    for changed_file in changed_files.iter() {
+        fs::copy(src_dir.join(&changed_file), dst_dir.join(&changed_file))?;
+    }
+    for removed_file in removed_files.iter() {
+        // `mod.rs` file is not generated by `protoc_rust` and `protoc_rust_grpc`.
+        if "mod.rs" != removed_file {
+            fs::remove_file(dst_dir.join(&removed_file))?;
+        }
+    }
+    Ok(())
+}
diff --git a/sdk/rust/oak_utils/src/tests.rs b/sdk/rust/oak_utils/src/tests.rs
new file mode 100644
index 00000000000..2502cd4d6d6
--- /dev/null
+++ b/sdk/rust/oak_utils/src/tests.rs
@@ -0,0 +1,93 @@
+//
+// Copyright 2020 The Project Oak Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+use crate::*;
+
+use maplit::hashmap;
+use std::collections::HashMap;
+use std::fs::File;
+use std::io::Write;
+use std::path::Path;
+
+fn write_files(dir: &Path, files: &HashMap<&str, &str>) {
+    for (filename, data) in files.iter() {
+        let path = dir.join(filename);
+        let mut file = File::create(path).unwrap();
+        file.write_all(data.as_bytes()).expect("Write error");
+    }
+}
+
+fn are_equal_files(files: &[String], expected_files: &[&str]) -> bool {
+    files.len() == expected_files.len()
+        && files.iter().zip(expected_files.iter()).all(|(a, b)| a == b)
+}
+
+#[test]
+fn get_files_test() {
+    let temp_files = hashmap! {
+        "1" => "string1",
+        "2" => "string2",
+        "3" => "string3",
+    };
+
+    let temp_dir = tempfile::tempdir().unwrap();
+    write_files(temp_dir.path(), &temp_files);
+
+    let files = get_files(temp_dir.path());
+    for (filename, data) in temp_files.iter() {
+        assert_eq!(
+            files.get(&String::from(*filename)),
+            Some(&String::from(*data))
+        );
+    }
+}
+
+#[test]
+fn get_changed_and_removed_files_test() {
+    let old_files = hashmap! {
+        "1" => "string1",
+        "2" => "string2",
+        "3" => "string3",
+    };
+    let new_files = hashmap! {
+        "1" => "changed_string1",
+        "3" => "string3",
+        "4" => "string4",
+    };
+    let expected_changed_files: &[&str] = &["1", "4"];
+    let expected_removed_files: &[&str] = &["2"];
+
+    let old_temp_dir = tempfile::tempdir().unwrap();
+    let new_temp_dir = tempfile::tempdir().unwrap();
+
+    write_files(old_temp_dir.path(), &old_files);
+    write_files(new_temp_dir.path(), &new_files);
+
+    let (mut changed_files, mut removed_files) =
+        get_changed_and_removed_files(old_temp_dir.path(), new_temp_dir.path());
+
+    changed_files.sort();
+    assert_eq!(
+        true,
+        are_equal_files(&changed_files, expected_changed_files)
+    );
+
+    removed_files.sort();
+    assert_eq!(
+        true,
+        are_equal_files(&removed_files, expected_removed_files)
+    );
+}
diff --git a/third_party/grpc-rust/protoc-rust-grpc/src/lib.rs b/third_party/grpc-rust/protoc-rust-grpc/src/lib.rs
index a9c7bae97a6..f7b4ba04e50 100644
--- a/third_party/grpc-rust/protoc-rust-grpc/src/lib.rs
+++ b/third_party/grpc-rust/protoc-rust-grpc/src/lib.rs
@@ -41,7 +41,6 @@ pub fn run(args: Args) -> Result<()> {
             includes: args.includes,
             input: args.input,
             customize: args.rust_protobuf_customize,
-            ..Default::default()
         })?;
     }
 
@@ -68,7 +67,7 @@ pub fn run(args: Args) -> Result<()> {
 
     let mut includes = args.includes;
     if includes.is_empty() {
-        static DOT_SLICE: &'static [&'static str] = &["."];
+        static DOT_SLICE: &[&str] = &["."];
         includes = DOT_SLICE;
     }
 
@@ -121,7 +120,7 @@ fn remove_path_prefix<'a>(mut path: &'a str, mut prefix: &str) -> Option<&'a str
         return Some(path);
     }
 
-    if prefix.ends_with("/") || prefix.ends_with("\\") {
+    if prefix.ends_with('/') || prefix.ends_with('\\') {
         prefix = &prefix[..prefix.len() - 1];
     }
 
@@ -134,9 +133,9 @@ fn remove_path_prefix<'a>(mut path: &'a str, mut prefix: &str) -> Option<&'a str
     }
 
     if path.as_bytes()[prefix.len()] == b'/' || path.as_bytes()[prefix.len()] == b'\\' {
-        return Some(&path[prefix.len() + 1..]);
+        Some(&path[prefix.len() + 1..])
     } else {
-        return None;
+        None
     }
 }