[INFO] cloning repository https://github.com/branransom/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/branransom/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbranransom%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbranransom%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb2c2e725a8fe5fdd3c410192484bfe1507a553a
[INFO] testing branransom/chess against 1.86.0 for beta-1.87-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbranransom%2Fchess" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/branransom/chess on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/branransom/chess
[INFO] finished tweaking git repo https://github.com/branransom/chess
[INFO] tweaked toml for git repo https://github.com/branransom/chess written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/branransom/chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41950f8c2dc4343a161642569159ad583bf25d655f8ff9df7b4a746506ac04a9
[INFO] running `Command { std: "docker" "start" "-a" "41950f8c2dc4343a161642569159ad583bf25d655f8ff9df7b4a746506ac04a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41950f8c2dc4343a161642569159ad583bf25d655f8ff9df7b4a746506ac04a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41950f8c2dc4343a161642569159ad583bf25d655f8ff9df7b4a746506ac04a9", kill_on_drop: false }`
[INFO] [stdout] 41950f8c2dc4343a161642569159ad583bf25d655f8ff9df7b4a746506ac04a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e737bf22cbbc9e89a94e8aaab00a154c279c0b0c0f62c78c247b91e3897584e
[INFO] running `Command { std: "docker" "start" "-a" "7e737bf22cbbc9e89a94e8aaab00a154c279c0b0c0f62c78c247b91e3897584e", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `simple_char` is never used
[INFO] [stdout]   --> src/board.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn simple_char(&self) -> &'static str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "7e737bf22cbbc9e89a94e8aaab00a154c279c0b0c0f62c78c247b91e3897584e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e737bf22cbbc9e89a94e8aaab00a154c279c0b0c0f62c78c247b91e3897584e", kill_on_drop: false }`
[INFO] [stdout] 7e737bf22cbbc9e89a94e8aaab00a154c279c0b0c0f62c78c247b91e3897584e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c62e6499def668d7d29c6a99411ad12f3f89e389ca336e5454913b2d2edf4675
[INFO] running `Command { std: "docker" "start" "-a" "c62e6499def668d7d29c6a99411ad12f3f89e389ca336e5454913b2d2edf4675", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `simple_char` is never used
[INFO] [stdout]   --> src/board.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn simple_char(&self) -> &'static str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess-rs` (bin "chess-rs" test); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/1.86.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name chess_rs --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=81ee05e4cd4b4b22 -C extra-filename=-44592bcc3c157725 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c62e6499def668d7d29c6a99411ad12f3f89e389ca336e5454913b2d2edf4675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62e6499def668d7d29c6a99411ad12f3f89e389ca336e5454913b2d2edf4675", kill_on_drop: false }`
[INFO] [stdout] c62e6499def668d7d29c6a99411ad12f3f89e389ca336e5454913b2d2edf4675