[INFO] updating cached repository munckymagik/go-concurrency-patterns-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/munckymagik/go-concurrency-patterns-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/munckymagik/go-concurrency-patterns-in-rust" "work/ex/clippy-test-run/sources/stable/gh/munckymagik/go-concurrency-patterns-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/munckymagik/go-concurrency-patterns-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/munckymagik/go-concurrency-patterns-in-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/munckymagik/go-concurrency-patterns-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/munckymagik/go-concurrency-patterns-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b32ef0de765504a6b02ce0645e80f67226cac631
[INFO] sha for GitHub repo munckymagik/go-concurrency-patterns-in-rust: b32ef0de765504a6b02ce0645e80f67226cac631
[INFO] validating manifest of munckymagik/go-concurrency-patterns-in-rust 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 munckymagik/go-concurrency-patterns-in-rust 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 munckymagik/go-concurrency-patterns-in-rust
[INFO] finished frobbing munckymagik/go-concurrency-patterns-in-rust
[INFO] frobbed toml for munckymagik/go-concurrency-patterns-in-rust written to work/ex/clippy-test-run/sources/stable/gh/munckymagik/go-concurrency-patterns-in-rust/Cargo.toml
[INFO] started frobbing munckymagik/go-concurrency-patterns-in-rust
[INFO] finished frobbing munckymagik/go-concurrency-patterns-in-rust
[INFO] frobbed toml for munckymagik/go-concurrency-patterns-in-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/munckymagik/go-concurrency-patterns-in-rust/Cargo.toml
[INFO] crate munckymagik/go-concurrency-patterns-in-rust has a lockfile. skipping
[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 munckymagik/go-concurrency-patterns-in-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/munckymagik/go-concurrency-patterns-in-rust:/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] 71ee43f137c9e0d8f568b0fd4c28ad3f0042d4a2e0a0ba47667ae6d86140c73f
[INFO] running `"docker" "start" "-a" "71ee43f137c9e0d8f568b0fd4c28ad3f0042d4a2e0a0ba47667ae6d86140c73f"`
[INFO] [stderr]     Checking futures v0.1.11
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]     Checking futures-cpupool v0.1.5
[INFO] [stderr]     Checking go-concurrency-patterns-in-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]  --> src/bin/04_ignore_less.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     thread::spawn(|| boring());
[INFO] [stderr]   |                   ^^^^^^^^^^^ help: remove closure as shown: `boring`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]  --> src/bin/04_ignore_less.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     thread::spawn(|| boring());
[INFO] [stderr]   |                   ^^^^^^^^^^^ help: remove closure as shown: `boring`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search_fan_in.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search_cpu_pool.rs:53:25
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search_timeout.rs:66:25
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search_cpu_pool.rs:53:25
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]  --> src/bin/03_ignore.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     thread::spawn(|| boring());
[INFO] [stderr]   |                   ^^^^^^^^^^^ help: remove closure as shown: `boring`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]  --> src/bin/03_ignore.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     thread::spawn(|| boring());
[INFO] [stderr]   |                   ^^^^^^^^^^^ help: remove closure as shown: `boring`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search_fan_in.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/17_fake_google_search_timeout.rs:66:25
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let subsec_ms = duration.subsec_nanos() as f64 / 1e6;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(duration.subsec_nanos())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
[INFO] running `"docker" "inspect" "71ee43f137c9e0d8f568b0fd4c28ad3f0042d4a2e0a0ba47667ae6d86140c73f"`
[INFO] running `"docker" "rm" "-f" "71ee43f137c9e0d8f568b0fd4c28ad3f0042d4a2e0a0ba47667ae6d86140c73f"`
[INFO] [stdout] 71ee43f137c9e0d8f568b0fd4c28ad3f0042d4a2e0a0ba47667ae6d86140c73f