[INFO] cloning repository https://github.com/gameboyprinter/rustchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gameboyprinter/rustchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgameboyprinter%2Frustchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgameboyprinter%2Frustchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3a4f58a10086e9a6112fcaede4f5b67ccf10d55
[INFO] checking gameboyprinter/rustchess against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgameboyprinter%2Frustchess" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gameboyprinter/rustchess on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gameboyprinter/rustchess
[INFO] finished tweaking git repo https://github.com/gameboyprinter/rustchess
[INFO] tweaked toml for git repo https://github.com/gameboyprinter/rustchess written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/gameboyprinter/rustchess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c2c696f1d1d5e811e9c8a712a1f9b267f643a9d70120a9b5e958a31b84c1480
[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" "1c2c696f1d1d5e811e9c8a712a1f9b267f643a9d70120a9b5e958a31b84c1480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c2c696f1d1d5e811e9c8a712a1f9b267f643a9d70120a9b5e958a31b84c1480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2c696f1d1d5e811e9c8a712a1f9b267f643a9d70120a9b5e958a31b84c1480", kill_on_drop: false }`
[INFO] [stdout] 1c2c696f1d1d5e811e9c8a712a1f9b267f643a9d70120a9b5e958a31b84c1480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f52ee3f4de7b9ccbc4e2e6dbffe540eb5d3fc958f07a50822c3fd51a530ed727
[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" "f52ee3f4de7b9ccbc4e2e6dbffe540eb5d3fc958f07a50822c3fd51a530ed727", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustchess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Black`
[INFO] [stdout]   --> src/board.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Black
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAILBOX`
[INFO] [stdout]   --> src/board.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | / const MAILBOX: [i8; 120] = [
[INFO] [stdout] 41 | |      -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
[INFO] [stdout] 42 | |      -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
[INFO] [stdout] 43 | |      -1,  0,  1,  2,  3,  4,  5,  6,  7, -1,
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |      -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
[INFO] [stdout] 53 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAILBOX64`
[INFO] [stdout]   --> src/board.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | / const MAILBOX64: [u8; 64] = [
[INFO] [stdout] 56 | |     21, 22, 23, 24, 25, 26, 27, 28,
[INFO] [stdout] 57 | |     31, 32, 33, 34, 35, 36, 37, 38,
[INFO] [stdout] 58 | |     41, 42, 43, 44, 45, 46, 47, 48,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | |     91, 92, 93, 94, 95, 96, 97, 98
[INFO] [stdout] 64 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Black`
[INFO] [stdout]   --> src/board.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Black
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAILBOX`
[INFO] [stdout]   --> src/board.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | / const MAILBOX: [i8; 120] = [
[INFO] [stdout] 41 | |      -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
[INFO] [stdout] 42 | |      -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
[INFO] [stdout] 43 | |      -1,  0,  1,  2,  3,  4,  5,  6,  7, -1,
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |      -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
[INFO] [stdout] 53 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAILBOX64`
[INFO] [stdout]   --> src/board.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | / const MAILBOX64: [u8; 64] = [
[INFO] [stdout] 56 | |     21, 22, 23, 24, 25, 26, 27, 28,
[INFO] [stdout] 57 | |     31, 32, 33, 34, 35, 36, 37, 38,
[INFO] [stdout] 58 | |     41, 42, 43, 44, 45, 46, 47, 48,
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | |     91, 92, 93, 94, 95, 96, 97, 98
[INFO] [stdout] 64 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "f52ee3f4de7b9ccbc4e2e6dbffe540eb5d3fc958f07a50822c3fd51a530ed727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52ee3f4de7b9ccbc4e2e6dbffe540eb5d3fc958f07a50822c3fd51a530ed727", kill_on_drop: false }`
[INFO] [stdout] f52ee3f4de7b9ccbc4e2e6dbffe540eb5d3fc958f07a50822c3fd51a530ed727