[INFO] updating cached repository https://github.com/Yayformee/chess
[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] 18ba414953344904f637981eec83b3613d55ef89
[INFO] testing Yayformee/chess against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYayformee%2Fchess" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Yayformee/chess on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Yayformee/chess
[INFO] finished tweaking git repo https://github.com/Yayformee/chess
[INFO] tweaked toml for git repo https://github.com/Yayformee/chess written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Yayformee/chess already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a83a938cae9677fe4fbe33e2646f2b12718752d4716487444f124e7de4a87c8d
[INFO] running `"docker" "start" "-a" "a83a938cae9677fe4fbe33e2646f2b12718752d4716487444f124e7de4a87c8d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling chess v1.0.4 (/opt/rustwide/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]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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" "a83a938cae9677fe4fbe33e2646f2b12718752d4716487444f124e7de4a87c8d"`
[INFO] running `"docker" "rm" "-f" "a83a938cae9677fe4fbe33e2646f2b12718752d4716487444f124e7de4a87c8d"`
[INFO] [stdout] a83a938cae9677fe4fbe33e2646f2b12718752d4716487444f124e7de4a87c8d