bump MSRV to 1.66.0 (#218)

.github/workflows/main.yml

@@ -62,7 +62,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust: [1.57.0, stable, nightly]
+        rust: ['1.66.0', stable, nightly]
         os: [ubuntu-latest, macOS-latest]
 
     steps:

bin/cargo-bolero/Cargo.toml

@@ -9,7 +9,7 @@ keywords = ["testing", "quickcheck", "property", "fuzz", "fuzzing"]
 license = "MIT"
 edition = "2018"
 readme = "README.md"
-rust-version = "1.66.0"
+rust-version = "1.76.0"
 
 [features]
 default = ["afl", "libfuzzer", "kani"]

bin/cargo-bolero/src/manifest.rs

@@ -60,7 +60,7 @@ impl Package {
     pub fn resolve(manifest_path: Option<&str>, package: Option<&str>) -> Result<Self> {
         Metadata::from_manifest_path(manifest_path)?
             .resolve_package(package)
-            .map(|package| package.clone())
+            .cloned()
     }
 
     pub fn manifest_dir(&self) -> PathBuf {

bin/clippy.toml

@@ -0,0 +1 @@
+msrv = "1.76.0"

bin/rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.66.0"
+channel = "1.73.0"
 components = [ "rustc", "clippy", "rustfmt" ]

clippy.toml

@@ -1 +1 @@
-msrv = "1.30.0"
+msrv = "1.66.0"

lib/bolero-engine/Cargo.toml

@@ -9,7 +9,7 @@ keywords = ["testing", "quickcheck", "property", "fuzz", "fuzzing"]
 license = "MIT"
 edition = "2018"
 readme = "../../README.md"
-rust-version = "1.57.0"
+rust-version = "1.66.0"
 
 [features]
 rng = ["rand", "rand_xoshiro", "bolero-generator/alloc"]

lib/bolero-engine/src/panic.rs

@@ -20,9 +20,9 @@ macro_rules! backtrace {
 }
 
 thread_local! {
-    static ERROR: RefCell<Option<PanicError>> = RefCell::new(None);
+    static ERROR: RefCell<Option<PanicError>> = const { RefCell::new(None) };
     static CAPTURE_BACKTRACE: RefCell<bool> = RefCell::new(*RUST_BACKTRACE);
-    static FORWARD_PANIC: RefCell<bool> = RefCell::new(true);
+    static FORWARD_PANIC: RefCell<bool> = const { RefCell::new(true) };
     static THREAD_NAME: String = String::from(std::thread::current().name().unwrap_or("main"));
 }
 

lib/bolero-engine/src/test.rs

@@ -197,7 +197,7 @@ where
             let value = core::panic::AssertUnwindSafe(generate_value!(self, driver));
 
             panic::catch(|| {
-                let res = (fun)(*value);
+                let res = (fun)(&value);
                 match res.into_test_result() {
                     Ok(()) => Ok(true),
                     Err(err) => Err(err),

lib/bolero-generator/Cargo.toml

@@ -9,7 +9,7 @@ keywords = ["testing", "quickcheck", "property", "fuzz", "fuzzing"]
 license = "MIT"
 edition = "2021"
 readme = "README.md"
-rust-version = "1.57.0"
+rust-version = "1.66.0"
 
 [features]
 default = ["either", "std"]

lib/bolero-generator/src/driver/macros.rs

@@ -82,11 +82,10 @@ macro_rules! gen_from_bytes {
         #[inline]
         fn gen_bool(&mut self, probability: Option<f32>) -> Option<bool> {
             if let Some(probability) = probability {
-                let value = self.gen_u32(Bound::Unbounded, Bound::Unbounded)? as f32
-                    / core::u32::MAX as f32;
+                let value = u32::sample_unbound(self)? as f32 / core::u32::MAX as f32;
                 Some(value < probability)
             } else {
-                let value: u8 = self.gen_u8(Bound::Unbounded, Bound::Unbounded)?;
+                let value = u8::sample_unbound(self)?;
                 Some(value < (u8::MAX / 2))
             }
         }

lib/bolero-generator/src/uniform.rs

@@ -226,6 +226,8 @@ impl Uniform for char {
 
 #[cfg(test)]
 mod tests {
+    #![allow(clippy::redundant_closure_call)]
+
     use super::*;
     use core::fmt;
 
@@ -343,19 +345,19 @@ mod tests {
         driver_mode: DriverMode,
         map: impl Fn(u8, u8) -> (Bound<T>, Bound<T>),
     ) {
-        for min in 0..=255 {
-            for max in 0..=255 {
-                let (min_b, max_b) = map(min, max);
+        for min in 0..=T::ENTRIES {
+            for max in 0..=T::ENTRIES {
+                let (min_b, max_b) = map(min as _, max as _);
                 let mut expected = Seen::default();
                 T::fill_expected(min_b, max_b, &mut expected);
 
                 let min_b = BoundExt::as_ref(&min_b);
                 let max_b = BoundExt::as_ref(&max_b);
 
                 let mut actual = Seen::default();
-                for seed in 0..=255 {
+                for seed in 0..=T::ENTRIES {
                     let mut driver = Byte {
-                        value: Some(seed),
+                        value: Some(seed as _),
                         driver_mode,
                     };
                     let result = T::sample(&mut driver, min_b, max_b);

lib/bolero/Cargo.toml

@@ -9,7 +9,7 @@ keywords = ["testing", "quickcheck", "property", "fuzz", "fuzzing"]
 license = "MIT"
 edition = "2018"
 readme = "../../README.md"
-rust-version = "1.57.0"
+rust-version = "1.66.0"
 
 [features]
 default = ["std"]

lib/bolero/src/test/mod.rs

@@ -176,7 +176,7 @@ impl TestEngine {
         T::Value: core::fmt::Debug,
     {
         let mut file_options = options.clone();
-        let mut rng_options = options.clone();
+        let mut rng_options = options;
 
         // set the driver mode to direct for file replays since they were likely generated with
         // fuzzers

lib/clippy.toml

@@ -0,0 +1 @@
+msrv = "1.66.0"

lib/rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.57.0"
+channel = "1.66.0"
 components = [ "rustc", "clippy", "rustfmt" ]