[INFO] updating cached repository luser/rustfilt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/luser/rustfilt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/luser/rustfilt" "work/ex/clippy-test-run/sources/stable/gh/luser/rustfilt"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/luser/rustfilt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/luser/rustfilt" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/luser/rustfilt"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/luser/rustfilt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b95d861b61a68d56a639fb3e5c893f95416daad1
[INFO] sha for GitHub repo luser/rustfilt: b95d861b61a68d56a639fb3e5c893f95416daad1
[INFO] validating manifest of luser/rustfilt 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 luser/rustfilt 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 luser/rustfilt
[INFO] finished frobbing luser/rustfilt
[INFO] frobbed toml for luser/rustfilt written to work/ex/clippy-test-run/sources/stable/gh/luser/rustfilt/Cargo.toml
[INFO] started frobbing luser/rustfilt
[INFO] finished frobbing luser/rustfilt
[INFO] frobbed toml for luser/rustfilt written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/luser/rustfilt/Cargo.toml
[INFO] crate luser/rustfilt 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 luser/rustfilt against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/luser/rustfilt:/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] 9d3693d68d9c80811767b216c397ae574470665b33bc46d6aab65da794ee964c
[INFO] running `"docker" "start" "-a" "9d3693d68d9c80811767b216c397ae574470665b33bc46d6aab65da794ee964c"`
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking regex v1.0.0
[INFO] [stderr]     Checking rustfilt v0.2.1-pre (/opt/crater/workdir)
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:192:13
[INFO] [stderr]     |
[INFO] [stderr] 192 |             writeln!(stderr(), "Unable to demangle names: {}", e).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:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             writeln!(stderr(), "Unable to demangle input: {}", e).unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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:192:13
[INFO] [stderr]     |
[INFO] [stderr] 192 |             writeln!(stderr(), "Unable to demangle names: {}", e).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:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             writeln!(stderr(), "Unable to demangle input: {}", e).unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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 9.68s
[INFO] running `"docker" "inspect" "9d3693d68d9c80811767b216c397ae574470665b33bc46d6aab65da794ee964c"`
[INFO] running `"docker" "rm" "-f" "9d3693d68d9c80811767b216c397ae574470665b33bc46d6aab65da794ee964c"`
[INFO] [stdout] 9d3693d68d9c80811767b216c397ae574470665b33bc46d6aab65da794ee964c