[INFO] fetching crate itsjustchess 0.1.3...
[INFO] checking itsjustchess-0.1.3 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate itsjustchess 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate itsjustchess 0.1.3
[INFO] finished tweaking crates.io crate itsjustchess 0.1.3
[INFO] tweaked toml for crates.io crate itsjustchess 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate itsjustchess 0.1.3 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate itsjustchess 0.1.3 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eadc726e30afc65930e0eb790d43ede494558984cbc33570eff525c23a2f5f70
[INFO] running `Command { std: "docker" "start" "-a" "eadc726e30afc65930e0eb790d43ede494558984cbc33570eff525c23a2f5f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eadc726e30afc65930e0eb790d43ede494558984cbc33570eff525c23a2f5f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eadc726e30afc65930e0eb790d43ede494558984cbc33570eff525c23a2f5f70", kill_on_drop: false }`
[INFO] [stdout] eadc726e30afc65930e0eb790d43ede494558984cbc33570eff525c23a2f5f70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18a77b9ff604e0759d608698c974de5b6af1229ab72028138cdcc1ab84913153
[INFO] running `Command { std: "docker" "start" "-a" "18a77b9ff604e0759d608698c974de5b6af1229ab72028138cdcc1ab84913153", kill_on_drop: false }`
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[INFO] [stderr]     Checking itsjustchess v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `start_col`
[INFO] [stdout]    --> src/main.rs:581:25
[INFO] [stdout]     |
[INFO] [stdout] 581 |         let (start_row, start_col) = start;
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_col`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_col`
[INFO] [stdout]    --> src/main.rs:581:25
[INFO] [stdout]     |
[INFO] [stdout] 581 |         let (start_row, start_col) = start;
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_col`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_checkmate` is never used
[INFO] [stdout]    --> src/main.rs:550:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl ChessGame {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 550 |     fn is_checkmate(&self, color: PieceColor) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_checkmate` is never used
[INFO] [stdout]    --> src/main.rs:550:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl ChessGame {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 550 |     fn is_checkmate(&self, color: PieceColor) -> bool {
[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 1m 16s
[INFO] running `Command { std: "docker" "inspect" "18a77b9ff604e0759d608698c974de5b6af1229ab72028138cdcc1ab84913153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a77b9ff604e0759d608698c974de5b6af1229ab72028138cdcc1ab84913153", kill_on_drop: false }`
[INFO] [stdout] 18a77b9ff604e0759d608698c974de5b6af1229ab72028138cdcc1ab84913153