Dec 04 13:18:53.114 INFO checking neosmart/tac against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 13:18:53.115 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 13:18:53.343 INFO [stdout] 74b4cbcd6e1424a072635ed8485ed0327c5b99ae0cbfb41996cc369838b3d0a5
Dec 04 13:18:53.350 INFO running `"docker" "start" "-a" "74b4cbcd6e1424a072635ed8485ed0327c5b99ae0cbfb41996cc369838b3d0a5"`
Dec 04 13:18:54.486 INFO [stderr] usermod: no changes
Dec 04 13:18:54.631 INFO [stderr]     Checking memmap v0.5.2
Dec 04 13:18:54.631 INFO [stderr]     Checking uuid v0.4.0
Dec 04 13:18:55.395 INFO [stderr]     Checking tac v0.2.3 (/source)
Dec 04 13:18:55.844 INFO [stderr] warning: variable does not need to be mutable
Dec 04 13:18:55.844 INFO [stderr]   --> src/main.rs:64:16
Dec 04 13:18:55.844 INFO [stderr]    |
Dec 04 13:18:55.844 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 04 13:18:55.844 INFO [stderr]    |                ----^^^^^^
Dec 04 13:18:55.845 INFO [stderr]    |                |
Dec 04 13:18:55.845 INFO [stderr]    |                help: remove this `mut`
Dec 04 13:18:55.845 INFO [stderr]    |
Dec 04 13:18:55.845 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 13:18:55.845 INFO [stderr] 
Dec 04 13:18:56.019 INFO [stderr] warning: variable does not need to be mutable
Dec 04 13:18:56.019 INFO [stderr]   --> src/main.rs:64:16
Dec 04 13:18:56.019 INFO [stderr]    |
Dec 04 13:18:56.020 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 04 13:18:56.020 INFO [stderr]    |                ----^^^^^^
Dec 04 13:18:56.020 INFO [stderr]    |                |
Dec 04 13:18:56.021 INFO [stderr]    |                help: remove this `mut`
Dec 04 13:18:56.021 INFO [stderr]    |
Dec 04 13:18:56.021 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 13:18:56.021 INFO [stderr] 
Dec 04 13:18:56.062 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
Dec 04 13:18:56.067 INFO [stderr] su: No module specific data is present
Dec 04 13:18:56.590 INFO running `"docker" "inspect" "74b4cbcd6e1424a072635ed8485ed0327c5b99ae0cbfb41996cc369838b3d0a5"`
Dec 04 13:18:56.921 INFO running `"docker" "rm" "-f" "74b4cbcd6e1424a072635ed8485ed0327c5b99ae0cbfb41996cc369838b3d0a5"`
Dec 04 13:18:57.266 INFO [stdout] 74b4cbcd6e1424a072635ed8485ed0327c5b99ae0cbfb41996cc369838b3d0a5