[INFO] cloning repository https://github.com/seven1m/puzzlecube
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seven1m/puzzlecube" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseven1m%2Fpuzzlecube", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseven1m%2Fpuzzlecube'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2adfd500b7f3d1c9031866a7f21f2649aff24b61
[INFO] checking seven1m/puzzlecube against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseven1m%2Fpuzzlecube" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seven1m/puzzlecube on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seven1m/puzzlecube
[INFO] finished tweaking git repo https://github.com/seven1m/puzzlecube
[INFO] tweaked toml for git repo https://github.com/seven1m/puzzlecube written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/seven1m/puzzlecube already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c41042a290624f5acba62ae89108aa957a45cb065df0e46c7519d5a9486f0fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c41042a290624f5acba62ae89108aa957a45cb065df0e46c7519d5a9486f0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c41042a290624f5acba62ae89108aa957a45cb065df0e46c7519d5a9486f0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c41042a290624f5acba62ae89108aa957a45cb065df0e46c7519d5a9486f0fc", kill_on_drop: false }`
[INFO] [stdout] 1c41042a290624f5acba62ae89108aa957a45cb065df0e46c7519d5a9486f0fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf09a0a82f8300eb79e9850c7f096ee436e867cecc0d5273943431ad7c170ce9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bf09a0a82f8300eb79e9850c7f096ee436e867cecc0d5273943431ad7c170ce9", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking puzzlecube v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cube::*`
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cube::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_test_pattern`
[INFO] [stdout]   --> src/cube.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new_with_test_pattern() -> Cube {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up_color`
[INFO] [stdout]   --> src/cube.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn up_color(&self) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `down_color`
[INFO] [stdout]    --> src/cube.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn down_color(&self) -> Color {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `front_color`
[INFO] [stdout]    --> src/cube.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn front_color(&self) -> Color {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `back_color`
[INFO] [stdout]    --> src/cube.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn back_color(&self) -> Color {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left_color`
[INFO] [stdout]    --> src/cube.rs:127:12
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn left_color(&self) -> Color {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right_color`
[INFO] [stdout]    --> src/cube.rs:186:12
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn right_color(&self) -> Color {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scramble`
[INFO] [stdout]    --> src/cube.rs:401:12
[INFO] [stdout]     |
[INFO] [stdout] 401 |     pub fn scramble(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `orient`
[INFO] [stdout]    --> src/cube.rs:434:12
[INFO] [stdout]     |
[INFO] [stdout] 434 |     pub fn orient(&mut self, up: Color, front: Color) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "bf09a0a82f8300eb79e9850c7f096ee436e867cecc0d5273943431ad7c170ce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf09a0a82f8300eb79e9850c7f096ee436e867cecc0d5273943431ad7c170ce9", kill_on_drop: false }`
[INFO] [stdout] bf09a0a82f8300eb79e9850c7f096ee436e867cecc0d5273943431ad7c170ce9