[INFO] updating cached repository glugg23/tic_tac_ted
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/glugg23/tic_tac_ted
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/glugg23/tic_tac_ted" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/glugg23/tic_tac_ted"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/glugg23/tic_tac_ted'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/glugg23/tic_tac_ted" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/glugg23/tic_tac_ted"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/glugg23/tic_tac_ted'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3cf875b5fd771ed0d3d55bd268619f7b5272b336
[INFO] sha for GitHub repo glugg23/tic_tac_ted: 3cf875b5fd771ed0d3d55bd268619f7b5272b336
[INFO] validating manifest of glugg23/tic_tac_ted on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of glugg23/tic_tac_ted on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing glugg23/tic_tac_ted
[INFO] finished frobbing glugg23/tic_tac_ted
[INFO] frobbed toml for glugg23/tic_tac_ted written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/glugg23/tic_tac_ted/Cargo.toml
[INFO] started frobbing glugg23/tic_tac_ted
[INFO] finished frobbing glugg23/tic_tac_ted
[INFO] frobbed toml for glugg23/tic_tac_ted written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/glugg23/tic_tac_ted/Cargo.toml
[INFO] crate glugg23/tic_tac_ted already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking glugg23/tic_tac_ted against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-1/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/glugg23/tic_tac_ted:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 584488aa9f87724a07a24151f4a9ea9a38861f642f050852683b3382cc78cef7
[INFO] running `"docker" "start" "-a" "584488aa9f87724a07a24151f4a9ea9a38861f642f050852683b3382cc78cef7"`
[INFO] [stderr]     Checking tic_tac_ted v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]  --> src/game.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut board = Board::new(board_size as usize);
[INFO] [stderr]   |             ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/game.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut board = Board::new(board_size as usize);
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]  --> src/game.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut board = Board::new(board_size as usize);
[INFO] [stderr]   |             ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/game.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut board = Board::new(board_size as usize);
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `"docker" "inspect" "584488aa9f87724a07a24151f4a9ea9a38861f642f050852683b3382cc78cef7"`
[INFO] running `"docker" "rm" "-f" "584488aa9f87724a07a24151f4a9ea9a38861f642f050852683b3382cc78cef7"`
[INFO] [stdout] 584488aa9f87724a07a24151f4a9ea9a38861f642f050852683b3382cc78cef7