[INFO] cloning repository https://github.com/sransara/checkmate-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sransara/checkmate-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsransara%2Fcheckmate-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsransara%2Fcheckmate-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c1941035ae4be724bb56f69b64dcf67b58c8e08
[INFO] testing sransara/checkmate-engine against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsransara%2Fcheckmate-engine" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sransara/checkmate-engine on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sransara/checkmate-engine
[INFO] finished tweaking git repo https://github.com/sransara/checkmate-engine
[INFO] tweaked toml for git repo https://github.com/sransara/checkmate-engine written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sransara/checkmate-engine 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3343611d9788b32e9dfcf4f87220da04877cad59f32513413dcc831271b56e6
[INFO] running `Command { std: "docker" "start" "-a" "a3343611d9788b32e9dfcf4f87220da04877cad59f32513413dcc831271b56e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3343611d9788b32e9dfcf4f87220da04877cad59f32513413dcc831271b56e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3343611d9788b32e9dfcf4f87220da04877cad59f32513413dcc831271b56e6", kill_on_drop: false }`
[INFO] [stdout] a3343611d9788b32e9dfcf4f87220da04877cad59f32513413dcc831271b56e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 309d14607476a5119678a9caa5b6e5cb9ab27e68be453d4a0b16d946fac2fcaa
[INFO] running `Command { std: "docker" "start" "-a" "309d14607476a5119678a9caa5b6e5cb9ab27e68be453d4a0b16d946fac2fcaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling checkmate_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from_str` is never used
[INFO] [stdout]    --> src/main.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 69  | impl Piece {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn from_str(s: &str) -> Piece {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `white_king_side`, `white_queen_side`, `black_king_side`, and `black_queen_side` are never read
[INFO] [stdout]    --> src/main.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | struct CastlingRights {
[INFO] [stdout]     |        -------------- fields in this struct
[INFO] [stdout] 148 |     white_king_side: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 149 |     white_queen_side: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 150 |     black_king_side: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 151 |     black_queen_side: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CastlingRights` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `castling_rights` and `en_passant` are never read
[INFO] [stdout]    --> src/main.rs:223:5
[INFO] [stdout]     |
[INFO] [stdout] 220 | struct GameState {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 223 |     castling_rights: CastlingRights,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 224 |     en_passant: Option<Square>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GameState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "309d14607476a5119678a9caa5b6e5cb9ab27e68be453d4a0b16d946fac2fcaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "309d14607476a5119678a9caa5b6e5cb9ab27e68be453d4a0b16d946fac2fcaa", kill_on_drop: false }`
[INFO] [stdout] 309d14607476a5119678a9caa5b6e5cb9ab27e68be453d4a0b16d946fac2fcaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/e99104f2bb9df106b804507e061bbbf6d5f0808c68e12965cfc2d320265520be: no space left on device