[INFO] cloning repository https://github.com/daniel-j-anderson-dev/rubiks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daniel-j-anderson-dev/rubiks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-j-anderson-dev%2Frubiks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-j-anderson-dev%2Frubiks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b2685bd2508d17540cbded4466e55bc5901d992
[INFO] checking daniel-j-anderson-dev/rubiks against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-j-anderson-dev%2Frubiks" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/daniel-j-anderson-dev/rubiks
[INFO] finished tweaking git repo https://github.com/daniel-j-anderson-dev/rubiks
[INFO] tweaked toml for git repo https://github.com/daniel-j-anderson-dev/rubiks written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/daniel-j-anderson-dev/rubiks on toolchain 1bdcb63291ccffc030f8223f6f978568dd240e3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/daniel-j-anderson-dev/rubiks 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" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 970650cf4fb2a0bde5e290cc8adbe0e107c5bd101e1a8442ad230bba25db09c1
[INFO] running `Command { std: "docker" "start" "-a" "970650cf4fb2a0bde5e290cc8adbe0e107c5bd101e1a8442ad230bba25db09c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "970650cf4fb2a0bde5e290cc8adbe0e107c5bd101e1a8442ad230bba25db09c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970650cf4fb2a0bde5e290cc8adbe0e107c5bd101e1a8442ad230bba25db09c1", kill_on_drop: false }`
[INFO] [stdout] 970650cf4fb2a0bde5e290cc8adbe0e107c5bd101e1a8442ad230bba25db09c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d1bddff101fb0abb9f0bb78d86deae3a02d979d894379938619d7387fb1428
[INFO] running `Command { std: "docker" "start" "-a" "44d1bddff101fb0abb9f0bb78d86deae3a02d979d894379938619d7387fb1428", kill_on_drop: false }`
[INFO] [stderr]     Checking rubiks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rotation`
[INFO] [stdout]   --> src/rubiks_cube.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn rotate(&mut self, rotation: Rotation) {
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rotation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rotation`
[INFO] [stdout]   --> src/rubiks_cube.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn rotate(&mut self, rotation: Rotation) {
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rotation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "44d1bddff101fb0abb9f0bb78d86deae3a02d979d894379938619d7387fb1428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d1bddff101fb0abb9f0bb78d86deae3a02d979d894379938619d7387fb1428", kill_on_drop: false }`
[INFO] [stdout] 44d1bddff101fb0abb9f0bb78d86deae3a02d979d894379938619d7387fb1428