Dec 19 06:38:50.136 INFO checking tsobako/tictactoe against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:38:50.136 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/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:38:50.760 INFO [stdout] 3fc1822f776260eefebef3fd050011c6c43beef3a30c0577cd22852e7b06c5ad
Dec 19 06:38:50.768 INFO running `"docker" "start" "-a" "3fc1822f776260eefebef3fd050011c6c43beef3a30c0577cd22852e7b06c5ad"`
Dec 19 06:38:52.768 INFO [stderr]     Checking tictactoe v0.1.1 (/opt/crater/workdir)
Dec 19 06:38:53.032 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:38:53.032 INFO [stderr]   --> src/main.rs:24:9
Dec 19 06:38:53.032 INFO [stderr]    |
Dec 19 06:38:53.032 INFO [stderr] 24 |     let mut field: Vec<u8> = vec![0,0,0,0,0,0,0,0,0];
Dec 19 06:38:53.032 INFO [stderr]    |         ----^^^^^
Dec 19 06:38:53.032 INFO [stderr]    |         |
Dec 19 06:38:53.032 INFO [stderr]    |         help: remove this `mut`
Dec 19 06:38:53.032 INFO [stderr]    |
Dec 19 06:38:53.032 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:38:53.032 INFO [stderr] 
Dec 19 06:38:53.032 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:38:53.032 INFO [stderr]   --> src/main.rs:24:9
Dec 19 06:38:53.032 INFO [stderr]    |
Dec 19 06:38:53.032 INFO [stderr] 24 |     let mut field: Vec<u8> = vec![0,0,0,0,0,0,0,0,0];
Dec 19 06:38:53.032 INFO [stderr]    |         ----^^^^^
Dec 19 06:38:53.032 INFO [stderr]    |         |
Dec 19 06:38:53.036 INFO [stderr]    |         help: remove this `mut`
Dec 19 06:38:53.036 INFO [stderr]    |
Dec 19 06:38:53.036 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:38:53.036 INFO [stderr] 
Dec 19 06:38:53.087 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
Dec 19 06:38:53.658 INFO running `"docker" "inspect" "3fc1822f776260eefebef3fd050011c6c43beef3a30c0577cd22852e7b06c5ad"`
Dec 19 06:38:53.962 INFO running `"docker" "rm" "-f" "3fc1822f776260eefebef3fd050011c6c43beef3a30c0577cd22852e7b06c5ad"`
Dec 19 06:38:54.168 INFO [stdout] 3fc1822f776260eefebef3fd050011c6c43beef3a30c0577cd22852e7b06c5ad