Dec 19 19:59:36.227 INFO checking beatmadsen/chess against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:59:36.227 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:59:36.670 INFO [stdout] e34eb3de44d140fadb43c9742ff818c5af5e1790023a9127980b2d8dc1afe64e
Dec 19 19:59:36.674 INFO running `"docker" "start" "-a" "e34eb3de44d140fadb43c9742ff818c5af5e1790023a9127980b2d8dc1afe64e"`
Dec 19 19:59:38.201 INFO [stderr]     Checking chess v0.1.0 (/opt/crater/workdir)
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `Pawn`
Dec 19 19:59:38.717 INFO [stderr]   --> src/piece.rs:16:1
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 16 | pub struct Pawn {}
Dec 19 19:59:38.717 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `Queen`
Dec 19 19:59:38.717 INFO [stderr]   --> src/piece.rs:17:1
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 17 | pub struct Queen {}
Dec 19 19:59:38.717 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `King`
Dec 19 19:59:38.717 INFO [stderr]   --> src/piece.rs:18:1
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 18 | pub struct King {}
Dec 19 19:59:38.717 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `Knight`
Dec 19 19:59:38.717 INFO [stderr]   --> src/piece.rs:19:1
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 19 | pub struct Knight {}
Dec 19 19:59:38.717 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `Rook`
Dec 19 19:59:38.717 INFO [stderr]   --> src/piece.rs:20:1
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 20 | pub struct Rook {}
Dec 19 19:59:38.717 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `Square`
Dec 19 19:59:38.717 INFO [stderr]  --> src/square.rs:4:1
Dec 19 19:59:38.717 INFO [stderr]   |
Dec 19 19:59:38.717 INFO [stderr] 4 | pub struct Square {
Dec 19 19:59:38.717 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:38.717 INFO [stderr]   --> src/square.rs:10:5
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:38.717 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: struct is never constructed: `Position`
Dec 19 19:59:38.717 INFO [stderr]   --> src/square.rs:19:1
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 19 | pub struct Position {
Dec 19 19:59:38.717 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.717 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:38.717 INFO [stderr]   --> src/square.rs:24:5
Dec 19 19:59:38.717 INFO [stderr]    |
Dec 19 19:59:38.717 INFO [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:38.717 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.717 INFO [stderr] 
Dec 19 19:59:38.895 INFO [stderr] warning: struct is never constructed: `Pawn`
Dec 19 19:59:38.895 INFO [stderr]   --> src/piece.rs:16:1
Dec 19 19:59:38.895 INFO [stderr]    |
Dec 19 19:59:38.895 INFO [stderr] 16 | pub struct Pawn {}
Dec 19 19:59:38.895 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:38.895 INFO [stderr]    |
Dec 19 19:59:38.895 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:59:38.895 INFO [stderr] 
Dec 19 19:59:38.895 INFO [stderr] warning: struct is never constructed: `Queen`
Dec 19 19:59:38.895 INFO [stderr]   --> src/piece.rs:17:1
Dec 19 19:59:38.895 INFO [stderr]    |
Dec 19 19:59:38.895 INFO [stderr] 17 | pub struct Queen {}
Dec 19 19:59:38.895 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: struct is never constructed: `King`
Dec 19 19:59:38.896 INFO [stderr]   --> src/piece.rs:18:1
Dec 19 19:59:38.896 INFO [stderr]    |
Dec 19 19:59:38.896 INFO [stderr] 18 | pub struct King {}
Dec 19 19:59:38.896 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: struct is never constructed: `Knight`
Dec 19 19:59:38.896 INFO [stderr]   --> src/piece.rs:19:1
Dec 19 19:59:38.896 INFO [stderr]    |
Dec 19 19:59:38.896 INFO [stderr] 19 | pub struct Knight {}
Dec 19 19:59:38.896 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: struct is never constructed: `Rook`
Dec 19 19:59:38.896 INFO [stderr]   --> src/piece.rs:20:1
Dec 19 19:59:38.896 INFO [stderr]    |
Dec 19 19:59:38.896 INFO [stderr] 20 | pub struct Rook {}
Dec 19 19:59:38.896 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: struct is never constructed: `Square`
Dec 19 19:59:38.896 INFO [stderr]  --> src/square.rs:4:1
Dec 19 19:59:38.896 INFO [stderr]   |
Dec 19 19:59:38.896 INFO [stderr] 4 | pub struct Square {
Dec 19 19:59:38.896 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:38.896 INFO [stderr]   --> src/square.rs:10:5
Dec 19 19:59:38.896 INFO [stderr]    |
Dec 19 19:59:38.896 INFO [stderr] 10 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:38.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: struct is never constructed: `Position`
Dec 19 19:59:38.896 INFO [stderr]   --> src/square.rs:19:1
Dec 19 19:59:38.896 INFO [stderr]    |
Dec 19 19:59:38.896 INFO [stderr] 19 | pub struct Position {
Dec 19 19:59:38.896 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.896 INFO [stderr] warning: method is never used: `legal_moves`
Dec 19 19:59:38.896 INFO [stderr]   --> src/square.rs:24:5
Dec 19 19:59:38.896 INFO [stderr]    |
Dec 19 19:59:38.896 INFO [stderr] 24 |     pub fn legal_moves(&self) -> Vec<(Name, Name)> {
Dec 19 19:59:38.896 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:59:38.896 INFO [stderr] 
Dec 19 19:59:38.933 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 19 19:59:39.870 INFO running `"docker" "inspect" "e34eb3de44d140fadb43c9742ff818c5af5e1790023a9127980b2d8dc1afe64e"`
Dec 19 19:59:40.183 INFO running `"docker" "rm" "-f" "e34eb3de44d140fadb43c9742ff818c5af5e1790023a9127980b2d8dc1afe64e"`
Dec 19 19:59:40.464 INFO [stdout] e34eb3de44d140fadb43c9742ff818c5af5e1790023a9127980b2d8dc1afe64e