[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 try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseven1m%2Fpuzzlecube" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/seven1m/puzzlecube on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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-9/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44214465fdc2ee7ccd907bd0711722f5ab7a40e0def59e72267713cb81090711
[INFO] running `Command { std: "docker" "start" "-a" "44214465fdc2ee7ccd907bd0711722f5ab7a40e0def59e72267713cb81090711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44214465fdc2ee7ccd907bd0711722f5ab7a40e0def59e72267713cb81090711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44214465fdc2ee7ccd907bd0711722f5ab7a40e0def59e72267713cb81090711", kill_on_drop: false }`
[INFO] [stdout] 44214465fdc2ee7ccd907bd0711722f5ab7a40e0def59e72267713cb81090711
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f42e13775b14fa4efd0e19e74ed95c4b42649b860425e27754852e2f672110d
[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" "3f42e13775b14fa4efd0e19e74ed95c4b42649b860425e27754852e2f672110d", 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 2.37s
[INFO] running `Command { std: "docker" "inspect" "3f42e13775b14fa4efd0e19e74ed95c4b42649b860425e27754852e2f672110d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f42e13775b14fa4efd0e19e74ed95c4b42649b860425e27754852e2f672110d", kill_on_drop: false }`
[INFO] [stdout] 3f42e13775b14fa4efd0e19e74ed95c4b42649b860425e27754852e2f672110d