Dec 19 19:59:36.606 INFO checking beatmadsen/chess against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:59:36.606 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/beatmadsen/chess:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:59:36.973 INFO [stdout] 9122e5785599e37ec9928563c8aed366f2001cde2a10326d1789b1a33a2a3e1a
Dec 19 19:59:36.978 INFO running `"docker" "start" "-a" "9122e5785599e37ec9928563c8aed366f2001cde2a10326d1789b1a33a2a3e1a"`
Dec 19 19:59:38.744 INFO [stderr]     Checking chess v0.1.0 (/opt/crater/workdir)
Dec 19 19:59:39.216 INFO [stderr] warning: struct is never constructed: `Pawn`
Dec 19 19:59:39.216 INFO [stderr]   --> src/piece.rs:16:1
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.216 INFO [stderr] 16 | pub struct Pawn {}
Dec 19 19:59:39.216 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.216 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:59:39.216 INFO [stderr] 
Dec 19 19:59:39.216 INFO [stderr] warning: struct is never constructed: `Queen`
Dec 19 19:59:39.216 INFO [stderr]   --> src/piece.rs:17:1
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.216 INFO [stderr] 17 | pub struct Queen {}
Dec 19 19:59:39.216 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 19:59:39.216 INFO [stderr] 
Dec 19 19:59:39.216 INFO [stderr] warning: struct is never constructed: `King`
Dec 19 19:59:39.216 INFO [stderr]   --> src/piece.rs:18:1
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.216 INFO [stderr] 18 | pub struct King {}
Dec 19 19:59:39.216 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:39.216 INFO [stderr] 
Dec 19 19:59:39.216 INFO [stderr] warning: struct is never constructed: `Knight`
Dec 19 19:59:39.216 INFO [stderr]   --> src/piece.rs:19:1
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.216 INFO [stderr] 19 | pub struct Knight {}
Dec 19 19:59:39.216 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.216 INFO [stderr] 
Dec 19 19:59:39.216 INFO [stderr] warning: struct is never constructed: `Rook`
Dec 19 19:59:39.216 INFO [stderr]   --> src/piece.rs:20:1
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.216 INFO [stderr] 20 | pub struct Rook {}
Dec 19 19:59:39.216 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:39.216 INFO [stderr] 
Dec 19 19:59:39.216 INFO [stderr] warning: struct is never constructed: `Square`
Dec 19 19:59:39.216 INFO [stderr]  --> src/square.rs:4:1
Dec 19 19:59:39.216 INFO [stderr]   |
Dec 19 19:59:39.216 INFO [stderr] 4 | pub struct Square {
Dec 19 19:59:39.216 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.216 INFO [stderr] 
Dec 19 19:59:39.216 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:39.216 INFO [stderr]   --> src/square.rs:10:5
Dec 19 19:59:39.216 INFO [stderr]    |
Dec 19 19:59:39.217 INFO [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:39.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.217 INFO [stderr] 
Dec 19 19:59:39.217 INFO [stderr] warning: struct is never constructed: `Position`
Dec 19 19:59:39.217 INFO [stderr]   --> src/square.rs:19:1
Dec 19 19:59:39.217 INFO [stderr]    |
Dec 19 19:59:39.217 INFO [stderr] 19 | pub struct Position {
Dec 19 19:59:39.217 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.217 INFO [stderr] 
Dec 19 19:59:39.217 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:39.217 INFO [stderr]   --> src/square.rs:24:5
Dec 19 19:59:39.217 INFO [stderr]    |
Dec 19 19:59:39.217 INFO [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:39.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.217 INFO [stderr] 
Dec 19 19:59:39.476 INFO [stderr] warning: struct is never constructed: `Pawn`
Dec 19 19:59:39.476 INFO [stderr]   --> src/piece.rs:16:1
Dec 19 19:59:39.476 INFO [stderr]    |
Dec 19 19:59:39.476 INFO [stderr] 16 | pub struct Pawn {}
Dec 19 19:59:39.476 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:39.476 INFO [stderr]    |
Dec 19 19:59:39.476 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:59:39.476 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: struct is never constructed: `Queen`
Dec 19 19:59:39.484 INFO [stderr]   --> src/piece.rs:17:1
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 17 | pub struct Queen {}
Dec 19 19:59:39.484 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: struct is never constructed: `King`
Dec 19 19:59:39.484 INFO [stderr]   --> src/piece.rs:18:1
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 18 | pub struct King {}
Dec 19 19:59:39.484 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: struct is never constructed: `Knight`
Dec 19 19:59:39.484 INFO [stderr]   --> src/piece.rs:19:1
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 19 | pub struct Knight {}
Dec 19 19:59:39.484 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: struct is never constructed: `Rook`
Dec 19 19:59:39.484 INFO [stderr]   --> src/piece.rs:20:1
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 20 | pub struct Rook {}
Dec 19 19:59:39.484 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: struct is never constructed: `Square`
Dec 19 19:59:39.484 INFO [stderr]  --> src/square.rs:4:1
Dec 19 19:59:39.484 INFO [stderr]   |
Dec 19 19:59:39.484 INFO [stderr] 4 | pub struct Square {
Dec 19 19:59:39.484 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:39.484 INFO [stderr]   --> src/square.rs:10:5
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:39.484 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: struct is never constructed: `Position`
Dec 19 19:59:39.484 INFO [stderr]   --> src/square.rs:19:1
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 19 | pub struct Position {
Dec 19 19:59:39.484 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.484 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:39.484 INFO [stderr]   --> src/square.rs:24:5
Dec 19 19:59:39.484 INFO [stderr]    |
Dec 19 19:59:39.484 INFO [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:39.484 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:39.484 INFO [stderr] 
Dec 19 19:59:39.520 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 19 19:59:40.104 INFO running `"docker" "inspect" "9122e5785599e37ec9928563c8aed366f2001cde2a10326d1789b1a33a2a3e1a"`
Dec 19 19:59:40.394 INFO running `"docker" "rm" "-f" "9122e5785599e37ec9928563c8aed366f2001cde2a10326d1789b1a33a2a3e1a"`
Dec 19 19:59:40.633 INFO [stdout] 9122e5785599e37ec9928563c8aed366f2001cde2a10326d1789b1a33a2a3e1a