Dec 19 11:56:12.482 INFO checking neosmart/tac against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:56:12.482 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:56:13.028 INFO [stdout] 97b64d173adf02c5bc4cc86639c231f2bdd5e409b9cc34946843cd1f201fea93
Dec 19 11:56:13.030 INFO running `"docker" "start" "-a" "97b64d173adf02c5bc4cc86639c231f2bdd5e409b9cc34946843cd1f201fea93"`
Dec 19 11:56:13.930 INFO [stderr]     Checking memmap v0.5.2
Dec 19 11:56:13.930 INFO [stderr]     Checking uuid v0.4.0
Dec 19 11:56:14.308 INFO [stderr]     Checking tac v0.2.3 (/opt/crater/workdir)
Dec 19 11:56:14.530 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:56:14.530 INFO [stderr]   --> src/main.rs:64:16
Dec 19 11:56:14.530 INFO [stderr]    |
Dec 19 11:56:14.530 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 19 11:56:14.530 INFO [stderr]    |                ----^^^^^^
Dec 19 11:56:14.530 INFO [stderr]    |                |
Dec 19 11:56:14.531 INFO [stderr]    |                help: remove this `mut`
Dec 19 11:56:14.531 INFO [stderr]    |
Dec 19 11:56:14.531 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:56:14.531 INFO [stderr] 
Dec 19 11:56:14.582 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:56:14.582 INFO [stderr]   --> src/main.rs:64:16
Dec 19 11:56:14.582 INFO [stderr]    |
Dec 19 11:56:14.582 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut Stdout, bytes: &[u8]) {
Dec 19 11:56:14.582 INFO [stderr]    |                ----^^^^^^
Dec 19 11:56:14.582 INFO [stderr]    |                |
Dec 19 11:56:14.582 INFO [stderr]    |                help: remove this `mut`
Dec 19 11:56:14.582 INFO [stderr]    |
Dec 19 11:56:14.582 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:56:14.583 INFO [stderr] 
Dec 19 11:56:14.607 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 19 11:56:14.902 INFO running `"docker" "inspect" "97b64d173adf02c5bc4cc86639c231f2bdd5e409b9cc34946843cd1f201fea93"`
Dec 19 11:56:14.997 INFO running `"docker" "rm" "-f" "97b64d173adf02c5bc4cc86639c231f2bdd5e409b9cc34946843cd1f201fea93"`
Dec 19 11:56:15.097 INFO [stdout] 97b64d173adf02c5bc4cc86639c231f2bdd5e409b9cc34946843cd1f201fea93