[INFO] crate myriad 0.1.1 is already in cache
[INFO] extracting crate myriad 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/myriad/0.1.1
[INFO] extracting crate myriad 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/myriad/0.1.1
[INFO] validating manifest of myriad-0.1.1 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 myriad-0.1.1 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 myriad-0.1.1
[INFO] finished frobbing myriad-0.1.1
[INFO] frobbed toml for myriad-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/myriad/0.1.1/Cargo.toml
[INFO] started frobbing myriad-0.1.1
[INFO] finished frobbing myriad-0.1.1
[INFO] frobbed toml for myriad-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/myriad/0.1.1/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 myriad-0.1.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/myriad/0.1.1:/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" "-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] b545ce204d959fedfc6a8b7cbe54b7a39bd36b8b011776579d350b0ea214f3fb
[INFO] running `"docker" "start" "-a" "b545ce204d959fedfc6a8b7cbe54b7a39bd36b8b011776579d350b0ea214f3fb"`
[INFO] [stderr]     Checking myriad v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/mpmc/mod.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         guard: Mutex::new(false),
[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 AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/mpmc/mod.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 |         guard: Mutex::new(false),
[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: trait `LockFree` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/mpmc/mod.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | / pub trait LockFree<T> {
[INFO] [stderr] 32 | |     fn push(&self, item: T);
[INFO] [stderr] 33 | |     fn pop(&self) -> Option<T>;
[INFO] [stderr] 34 | |     fn len(&self) -> usize;
[INFO] [stderr] 35 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/mpmc/mod.rs:92:14
[INFO] [stderr]    |
[INFO] [stderr] 92 |             *self.inner.guard.lock().unwrap() = true;
[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 AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]    --> src/mpmc/mod.rs:111:18
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 *self.inner.guard.lock().unwrap() = true;
[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 AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]    --> src/mpmc/mod.rs:181:25
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let mut guard = self.inner.guard.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: unused import: `Ordering::*`
[INFO] [stderr]   --> src/mpmc/stack.rs:97:42
[INFO] [stderr]    |
[INFO] [stderr] 97 |     use std::sync::atomic::{AtomicUsize, Ordering::*};
[INFO] [stderr]    |                                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/mpmc/mod.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         guard: Mutex::new(false),
[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 AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/mpmc/mod.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 |         guard: Mutex::new(false),
[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: trait `LockFree` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/mpmc/mod.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | / pub trait LockFree<T> {
[INFO] [stderr] 32 | |     fn push(&self, item: T);
[INFO] [stderr] 33 | |     fn pop(&self) -> Option<T>;
[INFO] [stderr] 34 | |     fn len(&self) -> usize;
[INFO] [stderr] 35 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/mpmc/mod.rs:92:14
[INFO] [stderr]    |
[INFO] [stderr] 92 |             *self.inner.guard.lock().unwrap() = true;
[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 AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]    --> src/mpmc/mod.rs:111:18
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 *self.inner.guard.lock().unwrap() = true;
[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 AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]    --> src/mpmc/mod.rs:181:25
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let mut guard = self.inner.guard.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]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "b545ce204d959fedfc6a8b7cbe54b7a39bd36b8b011776579d350b0ea214f3fb"`
[INFO] running `"docker" "rm" "-f" "b545ce204d959fedfc6a8b7cbe54b7a39bd36b8b011776579d350b0ea214f3fb"`
[INFO] [stdout] b545ce204d959fedfc6a8b7cbe54b7a39bd36b8b011776579d350b0ea214f3fb