[INFO] updating cached repository https://github.com/ekarademir/rust-learning-chess-term
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f17571e160bdb5fce6396e6d142396fa10befe2
[INFO] checking ekarademir/rust-learning-chess-term against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekarademir%2Frust-learning-chess-term" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ekarademir/rust-learning-chess-term on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ekarademir/rust-learning-chess-term
[INFO] finished tweaking git repo https://github.com/ekarademir/rust-learning-chess-term
[INFO] tweaked toml for git repo https://github.com/ekarademir/rust-learning-chess-term written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ekarademir/rust-learning-chess-term already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f04abc3c4acefc0d11a5385931a9e9aa00b329e97933dd642020a8c127c6341b
[INFO] running `"docker" "start" "-a" "f04abc3c4acefc0d11a5385931a9e9aa00b329e97933dd642020a8c127c6341b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking termion v1.5.2
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]     Checking chess-player v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/chessboard.rs:136:24
[INFO] [stderr]     |
[INFO] [stderr] 136 |     piecemap : HashMap<(Piece), Vec<(usize, usize)> >,  // (PIECETYPE, NUMBER) -> (ROW, COL)
[INFO] [stderr]     |                        ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/chessboard.rs:199:63
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn build_piecemap(boardstate: [[Piece; 8]; 8]) -> HashMap<(Piece), Vec<(usize, usize)> > {
[INFO] [stderr]     |                                                               ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/chessboard.rs:136:24
[INFO] [stderr]     |
[INFO] [stderr] 136 |     piecemap : HashMap<(Piece), Vec<(usize, usize)> >,  // (PIECETYPE, NUMBER) -> (ROW, COL)
[INFO] [stderr]     |                        ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/chessboard.rs:199:63
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn build_piecemap(boardstate: [[Piece; 8]; 8]) -> HashMap<(Piece), Vec<(usize, usize)> > {
[INFO] [stderr]     |                                                               ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Takes`
[INFO] [stderr]    --> src/chessboard.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     Takes,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Promoted`
[INFO] [stderr]    --> src/chessboard.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     Promoted,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Castled`
[INFO] [stderr]    --> src/chessboard.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     Castled,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Takes`
[INFO] [stderr]    --> src/chessboard.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     Takes,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Promoted`
[INFO] [stderr]    --> src/chessboard.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     Promoted,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Castled`
[INFO] [stderr]    --> src/chessboard.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     Castled,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.82s
[INFO] running `"docker" "inspect" "f04abc3c4acefc0d11a5385931a9e9aa00b329e97933dd642020a8c127c6341b"`
[INFO] running `"docker" "rm" "-f" "f04abc3c4acefc0d11a5385931a9e9aa00b329e97933dd642020a8c127c6341b"`
[INFO] [stdout] f04abc3c4acefc0d11a5385931a9e9aa00b329e97933dd642020a8c127c6341b