[INFO] cloning repository https://github.com/tibi-p/rubik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tibi-p/rubik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftibi-p%2Frubik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftibi-p%2Frubik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a658400d5d7cd023797597039bc9b9c7ad2e1759
[INFO] testing tibi-p/rubik against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftibi-p%2Frubik" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tibi-p/rubik on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tibi-p/rubik
[INFO] finished tweaking git repo https://github.com/tibi-p/rubik
[INFO] tweaked toml for git repo https://github.com/tibi-p/rubik written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tibi-p/rubik already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cde40c7cacd6f8b0cab1796a932ac278e3c727c73943985dec2109fc3173c7de
[INFO] running `Command { std: "docker" "start" "-a" "cde40c7cacd6f8b0cab1796a932ac278e3c727c73943985dec2109fc3173c7de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cde40c7cacd6f8b0cab1796a932ac278e3c727c73943985dec2109fc3173c7de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cde40c7cacd6f8b0cab1796a932ac278e3c727c73943985dec2109fc3173c7de", kill_on_drop: false }`
[INFO] [stdout] cde40c7cacd6f8b0cab1796a932ac278e3c727c73943985dec2109fc3173c7de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ce7b26c355131e18ee9c22574576657c69e94cdec83a8c9dc677c032896e2f2
[INFO] running `Command { std: "docker" "start" "-a" "8ce7b26c355131e18ee9c22574576657c69e94cdec83a8c9dc677c032896e2f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `edges`
[INFO] [stdout]   --> src/representation/mod.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let edges = [
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "8ce7b26c355131e18ee9c22574576657c69e94cdec83a8c9dc677c032896e2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce7b26c355131e18ee9c22574576657c69e94cdec83a8c9dc677c032896e2f2", kill_on_drop: false }`
[INFO] [stdout] 8ce7b26c355131e18ee9c22574576657c69e94cdec83a8c9dc677c032896e2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88022edeb338974ca50544d7fe53e63b2cde981c0a50c34c76cdbfb266a22783
[INFO] running `Command { std: "docker" "start" "-a" "88022edeb338974ca50544d7fe53e63b2cde981c0a50c34c76cdbfb266a22783", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `edges`
[INFO] [stdout]   --> src/representation/mod.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let edges = [
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "88022edeb338974ca50544d7fe53e63b2cde981c0a50c34c76cdbfb266a22783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88022edeb338974ca50544d7fe53e63b2cde981c0a50c34c76cdbfb266a22783", kill_on_drop: false }`
[INFO] [stdout] 88022edeb338974ca50544d7fe53e63b2cde981c0a50c34c76cdbfb266a22783
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 973ef09ea3e1de486a70d3500a2c16e2760572dee2fe4be7f8ccd378f7c9212e
[INFO] running `Command { std: "docker" "start" "-a" "973ef09ea3e1de486a70d3500a2c16e2760572dee2fe4be7f8ccd378f7c9212e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `edges`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/representation/mod.rs:58:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 58 |         let edges = [
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rubik-09aa68ff3a24b1de)
[INFO] running `Command { std: "docker" "inspect" "973ef09ea3e1de486a70d3500a2c16e2760572dee2fe4be7f8ccd378f7c9212e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973ef09ea3e1de486a70d3500a2c16e2760572dee2fe4be7f8ccd378f7c9212e", kill_on_drop: false }`
[INFO] [stdout] 973ef09ea3e1de486a70d3500a2c16e2760572dee2fe4be7f8ccd378f7c9212e