Dec 17 18:51:47.023 INFO checking neosmart/tac against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 18:51:47.023 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/neosmart/tac:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:51:47.371 INFO [stdout] 9c2f377d304f527f45a646724ec66f253df2f575dde9189fed168f11123d45ec
Dec 17 18:51:47.373 INFO running `"docker" "start" "-a" "9c2f377d304f527f45a646724ec66f253df2f575dde9189fed168f11123d45ec"`
Dec 17 18:51:48.055 INFO [stderr]     Checking memmap v0.5.2
Dec 17 18:51:48.491 INFO [stderr]     Checking tac v0.2.3 (/opt/crater/workdir)
Dec 17 18:51:48.778 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:51:48.778 INFO [stderr]   --> src/main.rs:64:16
Dec 17 18:51:48.778 INFO [stderr]    |
Dec 17 18:51:48.778 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 17 18:51:48.779 INFO [stderr]    |                ----^^^^^^
Dec 17 18:51:48.779 INFO [stderr]    |                |
Dec 17 18:51:48.779 INFO [stderr]    |                help: remove this `mut`
Dec 17 18:51:48.779 INFO [stderr]    |
Dec 17 18:51:48.779 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:51:48.779 INFO [stderr] 
Dec 17 18:51:48.800 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:51:48.800 INFO [stderr]   --> src/main.rs:64:16
Dec 17 18:51:48.800 INFO [stderr]    |
Dec 17 18:51:48.800 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 17 18:51:48.800 INFO [stderr]    |                ----^^^^^^
Dec 17 18:51:48.800 INFO [stderr]    |                |
Dec 17 18:51:48.800 INFO [stderr]    |                help: remove this `mut`
Dec 17 18:51:48.800 INFO [stderr]    |
Dec 17 18:51:48.800 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:51:48.800 INFO [stderr] 
Dec 17 18:51:48.832 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 17 18:51:49.162 INFO running `"docker" "inspect" "9c2f377d304f527f45a646724ec66f253df2f575dde9189fed168f11123d45ec"`
Dec 17 18:51:49.293 INFO running `"docker" "rm" "-f" "9c2f377d304f527f45a646724ec66f253df2f575dde9189fed168f11123d45ec"`
Dec 17 18:51:49.366 INFO [stdout] 9c2f377d304f527f45a646724ec66f253df2f575dde9189fed168f11123d45ec