[INFO] updating cached repository Yayformee/chess
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Yayformee/chess
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Yayformee/chess" "work/ex/beta-1.38-1/sources/1.37.0/gh/Yayformee/chess"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Yayformee/chess'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Yayformee/chess" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Yayformee/chess"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Yayformee/chess'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 18ba414953344904f637981eec83b3613d55ef89
[INFO] sha for GitHub repo Yayformee/chess: 18ba414953344904f637981eec83b3613d55ef89
[INFO] validating manifest of Yayformee/chess on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Yayformee/chess on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Yayformee/chess
[INFO] finished frobbing Yayformee/chess
[INFO] frobbed toml for Yayformee/chess written to work/ex/beta-1.38-1/sources/1.37.0/gh/Yayformee/chess/Cargo.toml
[INFO] started frobbing Yayformee/chess
[INFO] finished frobbing Yayformee/chess
[INFO] frobbed toml for Yayformee/chess written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Yayformee/chess/Cargo.toml
[INFO] crate Yayformee/chess already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Yayformee/chess/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Yayformee/chess against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Yayformee/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8498c0015bd5f71c41750b93e55882546ff78cb63f67504c54f138e066bc42fc
[INFO] running `"docker" "start" "-a" "8498c0015bd5f71c41750b93e55882546ff78cb63f67504c54f138e066bc42fc"`
[INFO] [stderr]    Compiling chess v1.0.4 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::num::SignedInt`
[INFO] [stderr]  --> src/board.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::SignedInt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ no `SignedInt` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(core, io, unicode, collections, str_words)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `color::Color: std::clone::Clone` is not satisfied
[INFO] [stderr]  --> src/color.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Copy, PartialEq)]
[INFO] [stderr]   |          ^^^^ the trait `std::clone::Clone` is not implemented for `color::Color`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `board::Tile: std::clone::Clone` is not satisfied
[INFO] [stderr]   --> src/board.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(Copy, PartialEq)]
[INFO] [stderr]    |          ^^^^ the trait `std::clone::Clone` is not implemented for `board::Tile`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `chess`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8498c0015bd5f71c41750b93e55882546ff78cb63f67504c54f138e066bc42fc"`
[INFO] running `"docker" "rm" "-f" "8498c0015bd5f71c41750b93e55882546ff78cb63f67504c54f138e066bc42fc"`
[INFO] [stdout] 8498c0015bd5f71c41750b93e55882546ff78cb63f67504c54f138e066bc42fc