Dec 17 13:06:45.549 INFO checking tsobako/tictactoe against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:06:45.549 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/tsobako/tictactoe:/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 13:06:45.787 INFO [stdout] 0243920ccb66a15c5d50afc20af4c6e66b38da65f37d050996c9fb322811276e
Dec 17 13:06:45.789 INFO running `"docker" "start" "-a" "0243920ccb66a15c5d50afc20af4c6e66b38da65f37d050996c9fb322811276e"`
Dec 17 13:06:46.543 INFO [stderr]     Checking tictactoe v0.1.1 (/opt/crater/workdir)
Dec 17 13:06:46.660 INFO [stderr] warning: variable does not need to be mutable
Dec 17 13:06:46.660 INFO [stderr]   --> src/main.rs:24:9
Dec 17 13:06:46.660 INFO [stderr]    |
Dec 17 13:06:46.660 INFO [stderr] 24 |     let mut field: Vec<u8> = vec![0,0,0,0,0,0,0,0,0];
Dec 17 13:06:46.660 INFO [stderr]    |         ----^^^^^
Dec 17 13:06:46.660 INFO [stderr]    |         |
Dec 17 13:06:46.660 INFO [stderr]    |         help: remove this `mut`
Dec 17 13:06:46.660 INFO [stderr]    |
Dec 17 13:06:46.660 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 13:06:46.660 INFO [stderr] 
Dec 17 13:06:46.664 INFO [stderr] warning: variable does not need to be mutable
Dec 17 13:06:46.664 INFO [stderr]   --> src/main.rs:24:9
Dec 17 13:06:46.664 INFO [stderr]    |
Dec 17 13:06:46.664 INFO [stderr] 24 |     let mut field: Vec<u8> = vec![0,0,0,0,0,0,0,0,0];
Dec 17 13:06:46.664 INFO [stderr]    |         ----^^^^^
Dec 17 13:06:46.664 INFO [stderr]    |         |
Dec 17 13:06:46.664 INFO [stderr]    |         help: remove this `mut`
Dec 17 13:06:46.664 INFO [stderr]    |
Dec 17 13:06:46.664 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 13:06:46.664 INFO [stderr] 
Dec 17 13:06:46.685 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
Dec 17 13:06:46.962 INFO running `"docker" "inspect" "0243920ccb66a15c5d50afc20af4c6e66b38da65f37d050996c9fb322811276e"`
Dec 17 13:06:47.073 INFO running `"docker" "rm" "-f" "0243920ccb66a15c5d50afc20af4c6e66b38da65f37d050996c9fb322811276e"`
Dec 17 13:06:47.152 INFO [stdout] 0243920ccb66a15c5d50afc20af4c6e66b38da65f37d050996c9fb322811276e