Nov 28 12:29:25.758 INFO checking Lireer/ricochet-robot-solver against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 12:29:25.759 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 12:29:26.020 INFO [stdout] 383cf6bb7a8746c7ef181c5f4aaab7c1e78796963910a9c47ba7b5b586a8f567
Nov 28 12:29:26.022 INFO running `"docker" "start" "-a" "383cf6bb7a8746c7ef181c5f4aaab7c1e78796963910a9c47ba7b5b586a8f567"`
Nov 28 12:29:26.960 INFO [stderr] usermod: no changes
Nov 28 12:29:27.040 INFO [stderr]     Checking text_io v0.1.6
Nov 28 12:29:27.049 INFO [stderr]     Checking num-complex v0.1.36
Nov 28 12:29:27.049 INFO [stderr]     Checking ricochet_board v0.1.0 (/source/ricochet_board)
Nov 28 12:29:27.052 INFO [stderr]     Checking num-bigint v0.1.36
Nov 28 12:29:28.280 INFO [stderr] warning: variable does not need to be mutable
Nov 28 12:29:28.280 INFO [stderr]    --> ricochet_board/src/lib.rs:261:19
Nov 28 12:29:28.280 INFO [stderr]     |
Nov 28 12:29:28.280 INFO [stderr] 261 |     fn fmt(&self, mut fmt: &mut fmt::Formatter) -> fmt::Result {
Nov 28 12:29:28.280 INFO [stderr]     |                   ----^^^
Nov 28 12:29:28.280 INFO [stderr]     |                   |
Nov 28 12:29:28.280 INFO [stderr]     |                   help: remove this `mut`
Nov 28 12:29:28.281 INFO [stderr]     |
Nov 28 12:29:28.281 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 12:29:28.281 INFO [stderr] 
Nov 28 12:29:28.281 INFO [stderr] warning: variable does not need to be mutable
Nov 28 12:29:28.281 INFO [stderr]    --> ricochet_board/src/lib.rs:272:19
Nov 28 12:29:28.281 INFO [stderr]     |
Nov 28 12:29:28.281 INFO [stderr] 272 |     fn fmt(&self, mut fmt: &mut fmt::Formatter) -> fmt::Result {
Nov 28 12:29:28.281 INFO [stderr]     |                   ----^^^
Nov 28 12:29:28.281 INFO [stderr]     |                   |
Nov 28 12:29:28.281 INFO [stderr]     |                   help: remove this `mut`
Nov 28 12:29:28.281 INFO [stderr] 
Nov 28 12:29:29.320 INFO [stderr]     Checking num-rational v0.1.36
Nov 28 12:29:30.316 INFO [stderr]     Checking num v0.1.37
Nov 28 12:29:30.852 INFO [stderr]     Checking ricochet_solver v0.1.0 (/source/ricochet_solver)
Nov 28 12:29:31.836 INFO [stderr] warning: variable does not need to be mutable
Nov 28 12:29:31.836 INFO [stderr]    --> ricochet_solver/src/lib.rs:233:9
Nov 28 12:29:31.836 INFO [stderr]     |
Nov 28 12:29:31.836 INFO [stderr] 233 |         mut visited_pos: &mut Vec<Vec<RobotPositions>>)
Nov 28 12:29:31.836 INFO [stderr]     |         ----^^^^^^^^^^^
Nov 28 12:29:31.836 INFO [stderr]     |         |
Nov 28 12:29:31.836 INFO [stderr]     |         help: remove this `mut`
Nov 28 12:29:31.836 INFO [stderr]     |
Nov 28 12:29:31.836 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 12:29:31.836 INFO [stderr] 
Nov 28 12:29:31.836 INFO [stderr] warning: function is never used: `database_solve`
Nov 28 12:29:31.836 INFO [stderr]    --> ricochet_solver/src/lib.rs:82:1
Nov 28 12:29:31.836 INFO [stderr]     |
Nov 28 12:29:31.836 INFO [stderr] 82  | / fn database_solve(board: &Board,
Nov 28 12:29:31.836 INFO [stderr] 83  | |                   positions: RobotPositions,
Nov 28 12:29:31.836 INFO [stderr] 84  | |                   target: Target,
Nov 28 12:29:31.836 INFO [stderr] 85  | |                   targetx: usize,
Nov 28 12:29:31.836 INFO [stderr] ...   |
Nov 28 12:29:31.837 INFO [stderr] 121 | |     unreachable!()
Nov 28 12:29:31.837 INFO [stderr] 122 | | }
Nov 28 12:29:31.837 INFO [stderr]     | |_^
Nov 28 12:29:31.837 INFO [stderr]     |
Nov 28 12:29:31.837 INFO [stderr]     = note: #[warn(dead_code)] on by default
Nov 28 12:29:31.837 INFO [stderr] 
Nov 28 12:29:31.884 INFO [stderr]     Checking ricochet v0.1.0 (/source)
Nov 28 12:29:33.929 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.94s
Nov 28 12:29:33.932 INFO [stderr] su: No module specific data is present
Nov 28 12:29:34.382 INFO running `"docker" "inspect" "383cf6bb7a8746c7ef181c5f4aaab7c1e78796963910a9c47ba7b5b586a8f567"`
Nov 28 12:29:34.467 INFO running `"docker" "rm" "-f" "383cf6bb7a8746c7ef181c5f4aaab7c1e78796963910a9c47ba7b5b586a8f567"`
Nov 28 12:29:34.552 INFO [stdout] 383cf6bb7a8746c7ef181c5f4aaab7c1e78796963910a9c47ba7b5b586a8f567