[INFO] crate fpool 0.4.0 is already in cache
[INFO] extracting crate fpool 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/fpool/0.4.0
[INFO] extracting crate fpool 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fpool/0.4.0
[INFO] validating manifest of fpool-0.4.0 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 fpool-0.4.0 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 fpool-0.4.0
[INFO] finished frobbing fpool-0.4.0
[INFO] frobbed toml for fpool-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/fpool/0.4.0/Cargo.toml
[INFO] started frobbing fpool-0.4.0
[INFO] finished frobbing fpool-0.4.0
[INFO] frobbed toml for fpool-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fpool/0.4.0/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 fpool-0.4.0 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-6/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/fpool/0.4.0:/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] f904d4d89e39e2e4516c90c74013ba56296753d4b276580a682ed7d74b49d570
[INFO] running `"docker" "start" "-a" "f904d4d89e39e2e4516c90c74013ba56296753d4b276580a682ed7d74b49d570"`
[INFO] [stderr]     Checking fpool v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> examples/thread_pool.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 | /                 loop {
[INFO] [stderr] 27 | |                     match rx.recv() {
[INFO] [stderr] 28 | |                         Ok(msg) => println!("Thread({}): {}", index, msg),
[INFO] [stderr] 29 | |                         // disconnected, let's shutdown this thread
[INFO] [stderr] 30 | |                         Err(_err) => break,
[INFO] [stderr] 31 | |                     }
[INFO] [stderr] 32 | |                 }
[INFO] [stderr]    | |_________________^ help: try: `while let Ok(msg) = rx.recv() { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "f904d4d89e39e2e4516c90c74013ba56296753d4b276580a682ed7d74b49d570"`
[INFO] running `"docker" "rm" "-f" "f904d4d89e39e2e4516c90c74013ba56296753d4b276580a682ed7d74b49d570"`
[INFO] [stdout] f904d4d89e39e2e4516c90c74013ba56296753d4b276580a682ed7d74b49d570