Dec 11 21:57:36.500 INFO checking beatmadsen/chess against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 21:57:36.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 21:57:36.952 INFO [stdout] 2666e4155c0cf79313550b24c14f6dc348e57d9601b1cf3b1aad509d9e560083
Dec 11 21:57:36.958 INFO running `"docker" "start" "-a" "2666e4155c0cf79313550b24c14f6dc348e57d9601b1cf3b1aad509d9e560083"`
Dec 11 21:57:38.322 INFO [stderr] usermod: no changes
Dec 11 21:57:38.402 INFO [stderr]     Checking chess v0.1.0 (/source)
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `Pawn`
Dec 11 21:57:39.138 INFO [stderr]   --> src/piece.rs:16:1
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 16 | pub struct Pawn {}
Dec 11 21:57:39.138 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `Queen`
Dec 11 21:57:39.138 INFO [stderr]   --> src/piece.rs:17:1
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 17 | pub struct Queen {}
Dec 11 21:57:39.138 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `King`
Dec 11 21:57:39.138 INFO [stderr]   --> src/piece.rs:18:1
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 18 | pub struct King {}
Dec 11 21:57:39.138 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `Knight`
Dec 11 21:57:39.138 INFO [stderr]   --> src/piece.rs:19:1
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 19 | pub struct Knight {}
Dec 11 21:57:39.138 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `Rook`
Dec 11 21:57:39.138 INFO [stderr]   --> src/piece.rs:20:1
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 20 | pub struct Rook {}
Dec 11 21:57:39.138 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `Square`
Dec 11 21:57:39.138 INFO [stderr]  --> src/square.rs:4:1
Dec 11 21:57:39.138 INFO [stderr]   |
Dec 11 21:57:39.138 INFO [stderr] 4 | pub struct Square {
Dec 11 21:57:39.138 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: method is never used: `legal_moves`
Dec 11 21:57:39.138 INFO [stderr]   --> src/square.rs:10:5
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 11 21:57:39.138 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: struct is never constructed: `Position`
Dec 11 21:57:39.138 INFO [stderr]   --> src/square.rs:19:1
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 19 | pub struct Position {
Dec 11 21:57:39.138 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.138 INFO [stderr] warning: method is never used: `legal_moves`
Dec 11 21:57:39.138 INFO [stderr]   --> src/square.rs:24:5
Dec 11 21:57:39.138 INFO [stderr]    |
Dec 11 21:57:39.138 INFO [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 11 21:57:39.138 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.138 INFO [stderr] 
Dec 11 21:57:39.328 INFO [stderr] warning: struct is never constructed: `Pawn`
Dec 11 21:57:39.328 INFO [stderr]   --> src/piece.rs:16:1
Dec 11 21:57:39.328 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 16 | pub struct Pawn {}
Dec 11 21:57:39.329 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: struct is never constructed: `Queen`
Dec 11 21:57:39.329 INFO [stderr]   --> src/piece.rs:17:1
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 17 | pub struct Queen {}
Dec 11 21:57:39.329 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: struct is never constructed: `King`
Dec 11 21:57:39.329 INFO [stderr]   --> src/piece.rs:18:1
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 18 | pub struct King {}
Dec 11 21:57:39.329 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: struct is never constructed: `Knight`
Dec 11 21:57:39.329 INFO [stderr]   --> src/piece.rs:19:1
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 19 | pub struct Knight {}
Dec 11 21:57:39.329 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: struct is never constructed: `Rook`
Dec 11 21:57:39.329 INFO [stderr]   --> src/piece.rs:20:1
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 20 | pub struct Rook {}
Dec 11 21:57:39.329 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: struct is never constructed: `Square`
Dec 11 21:57:39.329 INFO [stderr]  --> src/square.rs:4:1
Dec 11 21:57:39.329 INFO [stderr]   |
Dec 11 21:57:39.329 INFO [stderr] 4 | pub struct Square {
Dec 11 21:57:39.329 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: method is never used: `legal_moves`
Dec 11 21:57:39.329 INFO [stderr]   --> src/square.rs:10:5
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 11 21:57:39.329 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: struct is never constructed: `Position`
Dec 11 21:57:39.329 INFO [stderr]   --> src/square.rs:19:1
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 19 | pub struct Position {
Dec 11 21:57:39.329 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.329 INFO [stderr] warning: method is never used: `legal_moves`
Dec 11 21:57:39.329 INFO [stderr]   --> src/square.rs:24:5
Dec 11 21:57:39.329 INFO [stderr]    |
Dec 11 21:57:39.329 INFO [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 11 21:57:39.329 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:57:39.329 INFO [stderr] 
Dec 11 21:57:39.384 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
Dec 11 21:57:39.390 INFO [stderr] su: No module specific data is present
Dec 11 21:57:40.286 INFO running `"docker" "inspect" "2666e4155c0cf79313550b24c14f6dc348e57d9601b1cf3b1aad509d9e560083"`
Dec 11 21:57:40.592 INFO running `"docker" "rm" "-f" "2666e4155c0cf79313550b24c14f6dc348e57d9601b1cf3b1aad509d9e560083"`
Dec 11 21:57:40.924 INFO [stdout] 2666e4155c0cf79313550b24c14f6dc348e57d9601b1cf3b1aad509d9e560083