[INFO] crate std-semaphore 0.1.0 is already in cache
[INFO] extracting crate std-semaphore 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/std-semaphore/0.1.0
[INFO] extracting crate std-semaphore 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/std-semaphore/0.1.0
[INFO] validating manifest of std-semaphore-0.1.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of std-semaphore-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing std-semaphore-0.1.0
[INFO] finished frobbing std-semaphore-0.1.0
[INFO] frobbed toml for std-semaphore-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/std-semaphore/0.1.0/Cargo.toml
[INFO] started frobbing std-semaphore-0.1.0
[INFO] finished frobbing std-semaphore-0.1.0
[INFO] frobbed toml for std-semaphore-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/std-semaphore/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting std-semaphore-0.1.0 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/std-semaphore/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dclippy::into_iter_on_array" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9f34915533e95c4380048887f3a6a5701d2ed8fa972b54373e619a9a9586895f
[INFO] running `"docker" "start" "-a" "9f34915533e95c4380048887f3a6a5701d2ed8fa972b54373e619a9a9586895f"`
[INFO] [stderr]     Checking std-semaphore v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: Consider using an AtomicIsize instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/lib.rs:60:19
[INFO] [stderr]    |
[INFO] [stderr] 60 |             lock: Mutex::new(count),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::mutex_atomic)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicIsize instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/lib.rs:71:25
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut count = self.lock.lock().unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicIsize instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/lib.rs:83:10
[INFO] [stderr]    |
[INFO] [stderr] 83 |         *self.lock.lock().unwrap() += 1;
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicIsize instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/lib.rs:60:19
[INFO] [stderr]    |
[INFO] [stderr] 60 |             lock: Mutex::new(count),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::mutex_atomic)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicIsize instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/lib.rs:71:25
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut count = self.lock.lock().unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicIsize instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/lib.rs:83:10
[INFO] [stderr]    |
[INFO] [stderr] 83 |         *self.lock.lock().unwrap() += 1;
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "9f34915533e95c4380048887f3a6a5701d2ed8fa972b54373e619a9a9586895f"`
[INFO] running `"docker" "rm" "-f" "9f34915533e95c4380048887f3a6a5701d2ed8fa972b54373e619a9a9586895f"`
[INFO] [stdout] 9f34915533e95c4380048887f3a6a5701d2ed8fa972b54373e619a9a9586895f