diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 82ec1438a..da94c0b4c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,7 +8,7 @@ on:
 jobs:
 
   check:
-    name: Check (1.31.0)
+    name: Check (1.36.0)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -16,7 +16,7 @@ jobs:
       - name: Install
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.31.0
+          toolchain: 1.36.0
           profile: minimal
           override: true
       - name: Prepare Cargo.lock
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 9525e3047..b655cd23d 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -8,7 +8,7 @@ env:
 jobs:
 
   check:
-    name: Check (1.31.0)
+    name: Check (1.36.0)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -16,7 +16,7 @@ jobs:
       - name: Install
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.31.0
+          toolchain: 1.36.0
           profile: minimal
           override: true
       - name: Prepare Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
index e36a804b6..42d794f49 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ exclude = ["ci"]
 
 [dependencies]
 rayon-core = { version = "1.8.1", path = "rayon-core" }
-crossbeam-deque = "0.7.2"
+crossbeam-deque = "0.8.0"
 
 # This is a public dependency!
 [dependencies.either]
diff --git a/README.md b/README.md
index 9540f0553..b5cc31350 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Rayon crate](https://img.shields.io/crates/v/rayon.svg)](https://crates.io/crates/rayon)
 [![Rayon documentation](https://docs.rs/rayon/badge.svg)](https://docs.rs/rayon)
-![minimum rustc 1.31](https://img.shields.io/badge/rustc-1.31+-red.svg)
+![minimum rustc 1.36](https://img.shields.io/badge/rustc-1.36+-red.svg)
 ![build status](https://github.com/rayon-rs/rayon/workflows/master/badge.svg)
 [![Join the chat at https://gitter.im/rayon-rs/Lobby](https://badges.gitter.im/rayon-rs/Lobby.svg)](https://gitter.im/rayon-rs/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
@@ -84,7 +84,7 @@ just add:
 use rayon::prelude::*;
 ```
 
-Rayon currently requires `rustc 1.31.0` or greater.
+Rayon currently requires `rustc 1.36.0` or greater.
 
 ## Contribution
 
diff --git a/bors.toml b/bors.toml
index a6cb9b073..3091ad864 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,5 +1,5 @@
 status = [
-  "Check (1.31.0)",
+  "Check (1.36.0)",
   "Test (ubuntu-latest, stable)",
   "Test (ubuntu-latest, stable-i686)",
   "Test (ubuntu-latest, beta)",
diff --git a/ci/compat-Cargo.lock b/ci/compat-Cargo.lock
index bb3550302..98f216bec 100644
--- a/ci/compat-Cargo.lock
+++ b/ci/compat-Cargo.lock
@@ -64,15 +64,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.51"
+version = "0.3.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "addr2line 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "object 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "object 0.21.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-demangle 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -102,7 +102,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.60"
+version = "1.0.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -110,12 +110,17 @@ name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "cgl"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -146,17 +151,22 @@ dependencies = [
  "core-foundation 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-graphics 0.19.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "objc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "const_fn"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "core-foundation"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -172,7 +182,7 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -183,50 +193,50 @@ dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-graphics 0.19.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "objc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.4.4"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "crossbeam-deque"
-version = "0.7.3"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-epoch 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-epoch 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "const_fn 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "memoffset 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.7.2"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "const_fn 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -235,9 +245,9 @@ name = "derivative"
 version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -250,7 +260,7 @@ name = "dlib"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libloading 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libloading 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -264,7 +274,7 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.116 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -327,7 +337,7 @@ version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -351,7 +361,7 @@ name = "glium"
 version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "gl_generator 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "glutin 0.24.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -429,10 +439,10 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.16"
+version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -448,7 +458,7 @@ name = "iovec"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -482,7 +492,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.77"
+version = "0.2.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -490,13 +500,13 @@ name = "libloading"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.60 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "libloading"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -532,7 +542,7 @@ name = "malloc_buf"
 version = "0.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -550,7 +560,7 @@ name = "memmap"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -564,7 +574,7 @@ dependencies = [
 
 [[package]]
 name = "miniz_oxide"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "adler 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -581,7 +591,7 @@ dependencies = [
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -628,7 +638,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "android_log-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "ndk 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ndk-sys 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -645,7 +655,7 @@ version = "0.2.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -655,9 +665,9 @@ version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.60 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -736,8 +746,8 @@ name = "num_cpus"
 version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hermit-abi 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -755,9 +765,9 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-crate 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -770,7 +780,7 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.20.0"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -805,7 +815,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -831,7 +841,7 @@ name = "proc-macro-crate"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.5.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -844,7 +854,7 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.23"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -863,7 +873,7 @@ name = "quote"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -872,7 +882,7 @@ version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.79 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -964,7 +974,7 @@ name = "rand_jitter"
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 dependencies = [
- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -976,7 +986,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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- "libc 0.2.77 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -1020,7 +1030,7 @@ name = "rayon"
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@@ -1080,23 +1090,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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 [[package]]
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 [[package]]
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 [[package]]
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 [[package]]
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 [[package]]
@@ -1202,10 +1212,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
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@@ -1225,7 +1235,7 @@ dependencies = [
 
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-"checksum miniz_oxide 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c60c0dfe32c10b43a144bad8fc83538c52f58302c92300ea7ec7bf7b38d5a7b9"
+"checksum miniz_oxide 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0f2d26ec3309788e423cfbf68ad1800f061638098d76a83681af979dc4eda19d"
 "checksum mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)" = "fce347092656428bc8eaf6201042cb551b8d67855af7374542a92a0fbfcac430"
 "checksum mio-extras 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "52403fe290012ce777c4626790c8951324a2b9e3316b3143779c72b029742f19"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
@@ -1505,7 +1517,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum num_enum 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca565a7df06f3d4b485494f25ba05da1435950f4dc263440eda7a6fa9b8e36e4"
 "checksum num_enum_derive 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ffa5a33ddddfee04c0283a7653987d634e880347e96b5b2ed64de07efb59db9d"
 "checksum objc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
-"checksum object 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
+"checksum object 0.21.1 (registry+https://github.com/rust-lang/crates.io-index)" = "37fd5004feb2ce328a52b0b3d01dbf4ffff72583493900ed15f22d4111c51693"
 "checksum ordered-float 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3741934be594d77de1c8461ebcbbe866f585ea616a9753aa78f2bdc69f0e4579"
 "checksum osmesa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "88cfece6e95d2e717e0872a7f53a8684712ad13822a7979bc760b9c77ec0013b"
 "checksum parking_lot 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d3a704eb390aafdc107b0e392f56a82b668e3a71366993b5340f5833fd62505e"
@@ -1515,7 +1527,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum ppv-lite86 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c36fa947111f5c62a733b652544dd0016a43ce89619538a8ef92724a6f501a20"
 "checksum proc-macro-crate 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1d6ea3c4595b96363c13943497db34af4460fb474a95c43f4446ad341b8c9785"
 "checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
-"checksum proc-macro2 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)" = "51ef7cd2518ead700af67bf9d1a658d90b6037d77110fd9c0445429d0ba1c6c9"
+"checksum proc-macro2 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)" = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
 "checksum quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
 "checksum quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
 "checksum rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6d71dacdc3c88c1fde3885a3be3fbab9f35724e6ce99467f7d9c5026132184ca"
@@ -1536,9 +1548,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum raw-window-handle 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0a441a7a6c80ad6473bd4b74ec1c9a4c951794285bf941c2126f607c72e48211"
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)" = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
-"checksum regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
-"checksum regex-syntax 0.6.18 (registry+https://github.com/rust-lang/crates.io-index)" = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
-"checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
+"checksum regex 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "36f45b719a674bf4b828ff318906d6c133264c793eff7a41e30074a45b5099e2"
+"checksum regex-syntax 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)" = "c17be88d9eaa858870aa5e48cc406c206e4600e983fc4f06bbe5750d93d09761"
+"checksum rustc-demangle 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "b2610b7f643d18c87dff3b489950269617e6601a51f1f05aa5daefee36f64f0b"
 "checksum rusttype 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)" = "310942406a39981bed7e12b09182a221a29e0990f3e7e0c971f131922ed135d5"
 "checksum rusttype 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)" = "9f61411055101f7b60ecf1041d87fb74205fb20b0c7a723f07ef39174cf6b4c0"
 "checksum same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
@@ -1552,10 +1564,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum smithay-client-toolkit 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "421c8dc7acf5cb205b88160f8b4cc2c5cfabe210e43b2f80f009f4c1ef910f1d"
 "checksum stb_truetype 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f77b6b07e862c66a9f3e62a07588fee67cd90a9135a2b942409f195507b4fb51"
 "checksum strsim 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
-"checksum syn 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)" = "9c51d92969d209b54a98397e1b91c8ae82d8c87a7bb87df0b29aa2ad81454228"
+"checksum syn 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)" = "e03e57e4fcbfe7749842d53e24ccb9aa12b7252dbe5e91d2acad31834c8b8fdd"
 "checksum takeable-option 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "36ae8932fcfea38b7d3883ae2ab357b0d57a02caaa18ebb4f5ece08beaec4aa0"
 "checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
-"checksum toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
+"checksum toml 0.5.7 (registry+https://github.com/rust-lang/crates.io-index)" = "75cf45bb0bef80604d001caaec0d09da99611b3c0fd39d3080468875cdb65645"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 "checksum unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
diff --git a/rayon-core/Cargo.toml b/rayon-core/Cargo.toml
index 78731b957..166f033a5 100644
--- a/rayon-core/Cargo.toml
+++ b/rayon-core/Cargo.toml
@@ -18,9 +18,9 @@ categories = ["concurrency"]
 [dependencies]
 num_cpus = "1.2"
 lazy_static = "1"
-crossbeam-channel = "0.4.2"
-crossbeam-deque = "0.7.2"
-crossbeam-utils = "0.7"
+crossbeam-channel = "0.5.0"
+crossbeam-deque = "0.8.0"
+crossbeam-utils = "0.8.0"
 
 [dev-dependencies]
 rand = "0.7"
diff --git a/src/iter/copied.rs b/src/iter/copied.rs
index 7bc737f42..12c9c5b5b 100644
--- a/src/iter/copied.rs
+++ b/src/iter/copied.rs
@@ -102,11 +102,10 @@ where
     T: 'a + Copy,
 {
     type Item = T;
-    type IntoIter = iter::Cloned<P::IntoIter>;
+    type IntoIter = iter::Copied<P::IntoIter>;
 
     fn into_iter(self) -> Self::IntoIter {
-        // FIXME: use `Iterator::copied()` when Rust 1.36 is our minimum.
-        self.base.into_iter().cloned()
+        self.base.into_iter().copied()
     }
 
     fn min_len(&self) -> usize {
@@ -210,8 +209,7 @@ where
     where
         I: IntoIterator<Item = &'a T>,
     {
-        // FIXME: use `Iterator::copied()` when Rust 1.36 is our minimum.
-        self.base = self.base.consume_iter(iter.into_iter().cloned());
+        self.base = self.base.consume_iter(iter.into_iter().copied());
         self
     }