[INFO] updating cached repository ekarademir/rust-learning-chess-term
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ekarademir/rust-learning-chess-term
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ekarademir/rust-learning-chess-term" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ekarademir/rust-learning-chess-term"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ekarademir/rust-learning-chess-term'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ekarademir/rust-learning-chess-term" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ekarademir/rust-learning-chess-term"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ekarademir/rust-learning-chess-term'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f17571e160bdb5fce6396e6d142396fa10befe2
[INFO] sha for GitHub repo ekarademir/rust-learning-chess-term: 2f17571e160bdb5fce6396e6d142396fa10befe2
[INFO] validating manifest of ekarademir/rust-learning-chess-term on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ekarademir/rust-learning-chess-term on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ekarademir/rust-learning-chess-term
[INFO] finished frobbing ekarademir/rust-learning-chess-term
[INFO] frobbed toml for ekarademir/rust-learning-chess-term written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ekarademir/rust-learning-chess-term/Cargo.toml
[INFO] started frobbing ekarademir/rust-learning-chess-term
[INFO] finished frobbing ekarademir/rust-learning-chess-term
[INFO] frobbed toml for ekarademir/rust-learning-chess-term written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ekarademir/rust-learning-chess-term/Cargo.toml
[INFO] crate ekarademir/rust-learning-chess-term already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ekarademir/rust-learning-chess-term against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-2/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ekarademir/rust-learning-chess-term:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6cfa5ae93d54aa980001f7eccd0bcb998668237bf3cd3d3924a2d49eafdfd40a
[INFO] running `"docker" "start" "-a" "6cfa5ae93d54aa980001f7eccd0bcb998668237bf3cd3d3924a2d49eafdfd40a"`
[INFO] [stderr]     Checking termion v1.5.2
[INFO] [stderr]     Checking chess-player v0.1.0 (/opt/crater/workdir)
[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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `"docker" "inspect" "6cfa5ae93d54aa980001f7eccd0bcb998668237bf3cd3d3924a2d49eafdfd40a"`
[INFO] running `"docker" "rm" "-f" "6cfa5ae93d54aa980001f7eccd0bcb998668237bf3cd3d3924a2d49eafdfd40a"`
[INFO] [stdout] 6cfa5ae93d54aa980001f7eccd0bcb998668237bf3cd3d3924a2d49eafdfd40a