Dec 19 11:56:12.690 INFO checking neosmart/tac against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:56:12.690 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:56:13.080 INFO [stdout] 73c629921ce1f84ad6a983d7f030f356d900b858c9cbd33aadaba17e5e6df9a1
Dec 19 11:56:13.082 INFO running `"docker" "start" "-a" "73c629921ce1f84ad6a983d7f030f356d900b858c9cbd33aadaba17e5e6df9a1"`
Dec 19 11:56:14.032 INFO [stderr]     Checking memmap v0.5.2
Dec 19 11:56:14.032 INFO [stderr]     Checking uuid v0.4.0
Dec 19 11:56:14.539 INFO [stderr]     Checking tac v0.2.3 (/opt/crater/workdir)
Dec 19 11:56:14.752 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:56:14.752 INFO [stderr]   --> src/main.rs:64:16
Dec 19 11:56:14.752 INFO [stderr]    |
Dec 19 11:56:14.752 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 19 11:56:14.752 INFO [stderr]    |                ----^^^^^^
Dec 19 11:56:14.752 INFO [stderr]    |                |
Dec 19 11:56:14.752 INFO [stderr]    |                help: remove this `mut`
Dec 19 11:56:14.752 INFO [stderr]    |
Dec 19 11:56:14.752 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:56:14.752 INFO [stderr] 
Dec 19 11:56:14.756 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:56:14.756 INFO [stderr]   --> src/main.rs:64:16
Dec 19 11:56:14.756 INFO [stderr]    |
Dec 19 11:56:14.756 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 19 11:56:14.756 INFO [stderr]    |                ----^^^^^^
Dec 19 11:56:14.756 INFO [stderr]    |                |
Dec 19 11:56:14.756 INFO [stderr]    |                help: remove this `mut`
Dec 19 11:56:14.756 INFO [stderr]    |
Dec 19 11:56:14.756 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:56:14.756 INFO [stderr] 
Dec 19 11:56:14.776 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 19 11:56:15.054 INFO running `"docker" "inspect" "73c629921ce1f84ad6a983d7f030f356d900b858c9cbd33aadaba17e5e6df9a1"`
Dec 19 11:56:15.160 INFO running `"docker" "rm" "-f" "73c629921ce1f84ad6a983d7f030f356d900b858c9cbd33aadaba17e5e6df9a1"`
Dec 19 11:56:15.334 INFO [stdout] 73c629921ce1f84ad6a983d7f030f356d900b858c9cbd33aadaba17e5e6df9a1