[INFO] updating cached repository mwdowns/rust_knight_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mwdowns/rust_knight_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mwdowns/rust_knight_game" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mwdowns/rust_knight_game"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mwdowns/rust_knight_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mwdowns/rust_knight_game" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mwdowns/rust_knight_game"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mwdowns/rust_knight_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70f443f89ae44509fc47e0d3a3714a7e84878e58
[INFO] sha for GitHub repo mwdowns/rust_knight_game: 70f443f89ae44509fc47e0d3a3714a7e84878e58
[INFO] validating manifest of mwdowns/rust_knight_game on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mwdowns/rust_knight_game on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mwdowns/rust_knight_game
[INFO] finished frobbing mwdowns/rust_knight_game
[INFO] frobbed toml for mwdowns/rust_knight_game written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mwdowns/rust_knight_game/Cargo.toml
[INFO] started frobbing mwdowns/rust_knight_game
[INFO] finished frobbing mwdowns/rust_knight_game
[INFO] frobbed toml for mwdowns/rust_knight_game written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mwdowns/rust_knight_game/Cargo.toml
[INFO] crate mwdowns/rust_knight_game has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mwdowns/rust_knight_game against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mwdowns/rust_knight_game:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 54dc9002cee72c477b66c4c278930af4588195147bb022ca40c29ecbf30c73ca
[INFO] running `"docker" "start" "-a" "54dc9002cee72c477b66c4c278930af4588195147bb022ca40c29ecbf30c73ca"`
[INFO] [stderr]    Compiling knight_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Player`
[INFO] [stderr]  --> src/play_game.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     struct Player {
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "54dc9002cee72c477b66c4c278930af4588195147bb022ca40c29ecbf30c73ca"`
[INFO] running `"docker" "rm" "-f" "54dc9002cee72c477b66c4c278930af4588195147bb022ca40c29ecbf30c73ca"`
[INFO] [stdout] 54dc9002cee72c477b66c4c278930af4588195147bb022ca40c29ecbf30c73ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mwdowns/rust_knight_game:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] bbe1f19eb4113f5bf5521fba70148d39eb7801ef939039e45c60a282e4a1000e
[INFO] running `"docker" "start" "-a" "bbe1f19eb4113f5bf5521fba70148d39eb7801ef939039e45c60a282e4a1000e"`
[INFO] [stderr]    Compiling knight_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Player`
[INFO] [stderr]  --> src/play_game.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     struct Player {
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "bbe1f19eb4113f5bf5521fba70148d39eb7801ef939039e45c60a282e4a1000e"`
[INFO] running `"docker" "rm" "-f" "bbe1f19eb4113f5bf5521fba70148d39eb7801ef939039e45c60a282e4a1000e"`
[INFO] [stdout] bbe1f19eb4113f5bf5521fba70148d39eb7801ef939039e45c60a282e4a1000e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mwdowns/rust_knight_game:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 62f60b5608c5cf60c0dbdba561f72de99de656cf8d87bfde1313a6d958c5f6fc
[INFO] running `"docker" "start" "-a" "62f60b5608c5cf60c0dbdba561f72de99de656cf8d87bfde1313a6d958c5f6fc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/knight_game-c2f49a6cc89bbdf0
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "62f60b5608c5cf60c0dbdba561f72de99de656cf8d87bfde1313a6d958c5f6fc"`
[INFO] running `"docker" "rm" "-f" "62f60b5608c5cf60c0dbdba561f72de99de656cf8d87bfde1313a6d958c5f6fc"`
[INFO] [stdout] 62f60b5608c5cf60c0dbdba561f72de99de656cf8d87bfde1313a6d958c5f6fc