Dec 11 19:36:41.861 INFO checking djmcgill/Rubble against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 19:36:41.861 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 19:36:42.289 INFO [stdout] d7c59f062a7df445ced7cd47e0a93bcea0adc85d8a67855257a7400bb275fcaa
Dec 11 19:36:42.291 INFO running `"docker" "start" "-a" "d7c59f062a7df445ced7cd47e0a93bcea0adc85d8a67855257a7400bb275fcaa"`
Dec 11 19:36:44.493 INFO [stderr] usermod: no changes
Dec 11 19:36:44.566 INFO [stderr]     Checking rubble v0.1.0 (/source)
Dec 11 19:36:45.367 INFO [stderr] warning: constant item is never used: `HAND_LIMIT`
Dec 11 19:36:45.367 INFO [stderr]  --> src/main.rs:8:1
Dec 11 19:36:45.367 INFO [stderr]   |
Dec 11 19:36:45.367 INFO [stderr] 8 | const HAND_LIMIT: usize = 7;
Dec 11 19:36:45.367 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:36:45.367 INFO [stderr]   |
Dec 11 19:36:45.367 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 19:36:45.367 INFO [stderr] 
Dec 11 19:36:45.367 INFO [stderr] warning: variant is never constructed: `Placed`
Dec 11 19:36:45.367 INFO [stderr]   --> src/main.rs:28:5
Dec 11 19:36:45.367 INFO [stderr]    |
Dec 11 19:36:45.367 INFO [stderr] 28 |     Placed(char),
Dec 11 19:36:45.367 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.367 INFO [stderr] 
Dec 11 19:36:45.367 INFO [stderr] warning: variant is never constructed: `Bonus`
Dec 11 19:36:45.367 INFO [stderr]   --> src/main.rs:29:5
Dec 11 19:36:45.367 INFO [stderr]    |
Dec 11 19:36:45.368 INFO [stderr] 29 |     Bonus(Bonus),
Dec 11 19:36:45.368 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.368 INFO [stderr] 
Dec 11 19:36:45.368 INFO [stderr] warning: variant is never constructed: `DoubleLetter`
Dec 11 19:36:45.368 INFO [stderr]   --> src/main.rs:42:5
Dec 11 19:36:45.368 INFO [stderr]    |
Dec 11 19:36:45.369 INFO [stderr] 42 |     DoubleLetter,
Dec 11 19:36:45.369 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.369 INFO [stderr] 
Dec 11 19:36:45.369 INFO [stderr] warning: variant is never constructed: `TripleLetter`
Dec 11 19:36:45.369 INFO [stderr]   --> src/main.rs:43:5
Dec 11 19:36:45.369 INFO [stderr]    |
Dec 11 19:36:45.370 INFO [stderr] 43 |     TripleLetter,
Dec 11 19:36:45.370 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.370 INFO [stderr] 
Dec 11 19:36:45.370 INFO [stderr] warning: variant is never constructed: `DoubleWord`
Dec 11 19:36:45.370 INFO [stderr]   --> src/main.rs:44:5
Dec 11 19:36:45.370 INFO [stderr]    |
Dec 11 19:36:45.371 INFO [stderr] 44 |     DoubleWord,
Dec 11 19:36:45.371 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 19:36:45.371 INFO [stderr] 
Dec 11 19:36:45.371 INFO [stderr] warning: variant is never constructed: `TripleWord`
Dec 11 19:36:45.371 INFO [stderr]   --> src/main.rs:45:5
Dec 11 19:36:45.371 INFO [stderr]    |
Dec 11 19:36:45.371 INFO [stderr] 45 |     TripleWord,
Dec 11 19:36:45.371 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 19:36:45.371 INFO [stderr] 
Dec 11 19:36:45.371 INFO [stderr] warning: method is never used: `all_tiles_connected`
Dec 11 19:36:45.371 INFO [stderr]   --> src/main.rs:75:5
Dec 11 19:36:45.371 INFO [stderr]    |
Dec 11 19:36:45.371 INFO [stderr] 75 |     pub fn all_tiles_connected(&self) -> bool {
Dec 11 19:36:45.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:36:45.371 INFO [stderr] 
Dec 11 19:36:45.371 INFO [stderr] warning: struct is never constructed: `Game`
Dec 11 19:36:45.371 INFO [stderr]    --> src/main.rs:128:1
Dec 11 19:36:45.371 INFO [stderr]     |
Dec 11 19:36:45.371 INFO [stderr] 128 | struct Game {
Dec 11 19:36:45.372 INFO [stderr]     | ^^^^^^^^^^^
Dec 11 19:36:45.372 INFO [stderr] 
Dec 11 19:36:45.628 INFO [stderr] warning: variable does not need to be mutable
Dec 11 19:36:45.629 INFO [stderr]    --> src/main.rs:162:13
Dec 11 19:36:45.629 INFO [stderr]     |
Dec 11 19:36:45.629 INFO [stderr] 162 |         let mut board = Board([[Cell::Placed('c'); BOARD_WIDTH]; BOARD_HEIGHT]);
Dec 11 19:36:45.629 INFO [stderr]     |             ----^^^^^
Dec 11 19:36:45.629 INFO [stderr]     |             |
Dec 11 19:36:45.629 INFO [stderr]     |             help: remove this `mut`
Dec 11 19:36:45.630 INFO [stderr]     |
Dec 11 19:36:45.630 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 19:36:45.630 INFO [stderr] 
Dec 11 19:36:45.630 INFO [stderr] warning: constant item is never used: `HAND_LIMIT`
Dec 11 19:36:45.630 INFO [stderr]  --> src/main.rs:8:1
Dec 11 19:36:45.631 INFO [stderr]   |
Dec 11 19:36:45.631 INFO [stderr] 8 | const HAND_LIMIT: usize = 7;
Dec 11 19:36:45.631 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:36:45.631 INFO [stderr]   |
Dec 11 19:36:45.631 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 19:36:45.631 INFO [stderr] 
Dec 11 19:36:45.632 INFO [stderr] warning: variant is never constructed: `Bonus`
Dec 11 19:36:45.632 INFO [stderr]   --> src/main.rs:29:5
Dec 11 19:36:45.632 INFO [stderr]    |
Dec 11 19:36:45.632 INFO [stderr] 29 |     Bonus(Bonus),
Dec 11 19:36:45.632 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.632 INFO [stderr] 
Dec 11 19:36:45.632 INFO [stderr] warning: variant is never constructed: `DoubleLetter`
Dec 11 19:36:45.633 INFO [stderr]   --> src/main.rs:42:5
Dec 11 19:36:45.633 INFO [stderr]    |
Dec 11 19:36:45.633 INFO [stderr] 42 |     DoubleLetter,
Dec 11 19:36:45.633 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.633 INFO [stderr] 
Dec 11 19:36:45.633 INFO [stderr] warning: variant is never constructed: `TripleLetter`
Dec 11 19:36:45.633 INFO [stderr]   --> src/main.rs:43:5
Dec 11 19:36:45.633 INFO [stderr]    |
Dec 11 19:36:45.633 INFO [stderr] 43 |     TripleLetter,
Dec 11 19:36:45.633 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 11 19:36:45.633 INFO [stderr] 
Dec 11 19:36:45.633 INFO [stderr] warning: variant is never constructed: `DoubleWord`
Dec 11 19:36:45.633 INFO [stderr]   --> src/main.rs:44:5
Dec 11 19:36:45.633 INFO [stderr]    |
Dec 11 19:36:45.633 INFO [stderr] 44 |     DoubleWord,
Dec 11 19:36:45.633 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 19:36:45.633 INFO [stderr] 
Dec 11 19:36:45.633 INFO [stderr] warning: variant is never constructed: `TripleWord`
Dec 11 19:36:45.633 INFO [stderr]   --> src/main.rs:45:5
Dec 11 19:36:45.633 INFO [stderr]    |
Dec 11 19:36:45.633 INFO [stderr] 45 |     TripleWord,
Dec 11 19:36:45.633 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 19:36:45.633 INFO [stderr] 
Dec 11 19:36:45.633 INFO [stderr] warning: struct is never constructed: `Game`
Dec 11 19:36:45.633 INFO [stderr]    --> src/main.rs:128:1
Dec 11 19:36:45.633 INFO [stderr]     |
Dec 11 19:36:45.633 INFO [stderr] 128 | struct Game {
Dec 11 19:36:45.633 INFO [stderr]     | ^^^^^^^^^^^
Dec 11 19:36:45.633 INFO [stderr] 
Dec 11 19:36:45.668 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Dec 11 19:36:45.677 INFO [stderr] su: No module specific data is present
Dec 11 19:36:46.552 INFO running `"docker" "inspect" "d7c59f062a7df445ced7cd47e0a93bcea0adc85d8a67855257a7400bb275fcaa"`
Dec 11 19:36:46.928 INFO running `"docker" "rm" "-f" "d7c59f062a7df445ced7cd47e0a93bcea0adc85d8a67855257a7400bb275fcaa"`
Dec 11 19:36:47.288 INFO [stdout] d7c59f062a7df445ced7cd47e0a93bcea0adc85d8a67855257a7400bb275fcaa