[INFO] cloning repository https://github.com/Yayformee/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yayformee/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYayformee%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYayformee%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18ba414953344904f637981eec83b3613d55ef89
[INFO] testing Yayformee/chess against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYayformee%2Fchess" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[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 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dffe5cc3c477d30e510388a19f9fa009aa74ca25e63d3a46f1570afff52d3573
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dffe5cc3c477d30e510388a19f9fa009aa74ca25e63d3a46f1570afff52d3573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dffe5cc3c477d30e510388a19f9fa009aa74ca25e63d3a46f1570afff52d3573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dffe5cc3c477d30e510388a19f9fa009aa74ca25e63d3a46f1570afff52d3573", kill_on_drop: false }`
[INFO] [stdout] dffe5cc3c477d30e510388a19f9fa009aa74ca25e63d3a46f1570afff52d3573
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0121ede7c2f28dc5dff45c8c08e78acd1d67e63327ab519e861662bf5ffbbbc3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0121ede7c2f28dc5dff45c8c08e78acd1d67e63327ab519e861662bf5ffbbbc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::num::SignedInt`
[INFO] [stdout]  --> src/board.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::num::SignedInt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `SignedInt` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core, io, unicode, collections, str_words)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Color: Clone` is not satisfied
[INFO] [stdout]    --> src/color.rs:1:10
[INFO] [stdout]     |
[INFO] [stdout] 1   | #[derive(Copy, PartialEq)]
[INFO] [stdout]     |          ^^^^ the trait `Clone` is not implemented for `Color`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Tile: Clone` is not satisfied
[INFO] [stdout]    --> src/board.rs:29:10
[INFO] [stdout]     |
[INFO] [stdout] 29  | #[derive(Copy, PartialEq)]
[INFO] [stdout]     |          ^^^^ the trait `Clone` is not implemented for `Tile`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0121ede7c2f28dc5dff45c8c08e78acd1d67e63327ab519e861662bf5ffbbbc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0121ede7c2f28dc5dff45c8c08e78acd1d67e63327ab519e861662bf5ffbbbc3", kill_on_drop: false }`
[INFO] [stdout] 0121ede7c2f28dc5dff45c8c08e78acd1d67e63327ab519e861662bf5ffbbbc3
