[INFO] updating cached repository caius/rscat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/caius/rscat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/caius/rscat" "work/ex/clippy-test-run/sources/stable/gh/caius/rscat"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/caius/rscat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/caius/rscat" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/caius/rscat"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/caius/rscat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58da354e81d20a5bb7ee8cce0cb9387d3462fdad
[INFO] sha for GitHub repo caius/rscat: 58da354e81d20a5bb7ee8cce0cb9387d3462fdad
[INFO] validating manifest of caius/rscat 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 caius/rscat 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 caius/rscat
[INFO] finished frobbing caius/rscat
[INFO] frobbed toml for caius/rscat written to work/ex/clippy-test-run/sources/stable/gh/caius/rscat/Cargo.toml
[INFO] started frobbing caius/rscat
[INFO] finished frobbing caius/rscat
[INFO] frobbed toml for caius/rscat written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/caius/rscat/Cargo.toml
[INFO] crate caius/rscat 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 caius/rscat 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/gh/caius/rscat:/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] 4b93419ba401742add7e628fd53441c7f7c8d5d52bfb587a89b6eac11f41abc2
[INFO] running `"docker" "start" "-a" "4b93419ba401742add7e628fd53441c7f7c8d5d52bfb587a89b6eac11f41abc2"`
[INFO] [stderr]     Checking rscat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]   --> src/main.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |                     writeln!(io::stderr(), "cat: {}: No such file or directory", path).unwrap();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]   --> src/main.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |                     writeln!(io::stderr(), "cat: {}: No such file or directory", path).unwrap();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "4b93419ba401742add7e628fd53441c7f7c8d5d52bfb587a89b6eac11f41abc2"`
[INFO] running `"docker" "rm" "-f" "4b93419ba401742add7e628fd53441c7f7c8d5d52bfb587a89b6eac11f41abc2"`
[INFO] [stdout] 4b93419ba401742add7e628fd53441c7f7c8d5d52bfb587a89b6eac11f41abc2