[INFO] cloning repository https://github.com/jasoneveleth/squzzles-solver-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasoneveleth/squzzles-solver-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasoneveleth%2Fsquzzles-solver-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasoneveleth%2Fsquzzles-solver-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0f2c3a3e59cbc3e9804556d6beba1d189138e86
[INFO] checking jasoneveleth/squzzles-solver-rs against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasoneveleth%2Fsquzzles-solver-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jasoneveleth/squzzles-solver-rs
[INFO] finished tweaking git repo https://github.com/jasoneveleth/squzzles-solver-rs
[INFO] tweaked toml for git repo https://github.com/jasoneveleth/squzzles-solver-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jasoneveleth/squzzles-solver-rs on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jasoneveleth/squzzles-solver-rs 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 636c7f150b1c1bc180936806ea1543a19cdc517ab5bebd7d3d463eb8a57e3198
[INFO] running `Command { std: "docker" "start" "-a" "636c7f150b1c1bc180936806ea1543a19cdc517ab5bebd7d3d463eb8a57e3198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "636c7f150b1c1bc180936806ea1543a19cdc517ab5bebd7d3d463eb8a57e3198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636c7f150b1c1bc180936806ea1543a19cdc517ab5bebd7d3d463eb8a57e3198", kill_on_drop: false }`
[INFO] [stdout] 636c7f150b1c1bc180936806ea1543a19cdc517ab5bebd7d3d463eb8a57e3198
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dbe260e3b9a328eb1f724b111c984a1cdeb83dd9c99d6c2804134432285310c
[INFO] running `Command { std: "docker" "start" "-a" "5dbe260e3b9a328eb1f724b111c984a1cdeb83dd9c99d6c2804134432285310c", kill_on_drop: false }`
[INFO] [stderr]     Checking squzzle-solver-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pieces`
[INFO] [stdout]    --> src/main.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let pieces: [u32; 9] = [
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pieces`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/main.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let state = State { 
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pieces`
[INFO] [stdout]    --> src/main.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let pieces: [u32; 9] = [
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pieces`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/main.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let state = State { 
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "5dbe260e3b9a328eb1f724b111c984a1cdeb83dd9c99d6c2804134432285310c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dbe260e3b9a328eb1f724b111c984a1cdeb83dd9c99d6c2804134432285310c", kill_on_drop: false }`
[INFO] [stdout] 5dbe260e3b9a328eb1f724b111c984a1cdeb83dd9c99d6c2804134432285310c
