[INFO] cloning repository https://github.com/enbyss/colour-exercise-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enbyss/colour-exercise-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenbyss%2Fcolour-exercise-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenbyss%2Fcolour-exercise-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbead8b67397228652c7a23af502c4e5a493de70
[INFO] checking enbyss/colour-exercise-rs against master#ba412a6e70ac84641be7764d088acabd0eb3fa39 for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenbyss%2Fcolour-exercise-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/enbyss/colour-exercise-rs
[INFO] finished tweaking git repo https://github.com/enbyss/colour-exercise-rs
[INFO] tweaked toml for git repo https://github.com/enbyss/colour-exercise-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/enbyss/colour-exercise-rs on toolchain ba412a6e70ac84641be7764d088acabd0eb3fa39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/enbyss/colour-exercise-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" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02c09853aed47305271399b1f30cf83a40120226f3e4258ef404341910a8107d
[INFO] running `Command { std: "docker" "start" "-a" "02c09853aed47305271399b1f30cf83a40120226f3e4258ef404341910a8107d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02c09853aed47305271399b1f30cf83a40120226f3e4258ef404341910a8107d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02c09853aed47305271399b1f30cf83a40120226f3e4258ef404341910a8107d", kill_on_drop: false }`
[INFO] [stdout] 02c09853aed47305271399b1f30cf83a40120226f3e4258ef404341910a8107d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7eddc6ecb368fde2f9df2be896e635c4a2a8dd0ea427a6b6450d42bc39abf5f
[INFO] running `Command { std: "docker" "start" "-a" "f7eddc6ecb368fde2f9df2be896e635c4a2a8dd0ea427a6b6450d42bc39abf5f", kill_on_drop: false }`
[INFO] [stderr]     Checking colour-exercise-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ciede2000`
[INFO] [stdout]  --> src/pixel/lch.rs:2:66
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{conversions::{lab_to_lch, lch_to_lab}, comparisons::{ciede2000, cie94}};
[INFO] [stdout]   |                                                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ciede2000`
[INFO] [stdout]  --> src/pixel/lch.rs:2:66
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{conversions::{lab_to_lch, lch_to_lab}, comparisons::{ciede2000, cie94}};
[INFO] [stdout]   |                                                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `D65_WHITE` is never used
[INFO] [stdout]  --> src/conversions.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const D65_WHITE: [f32; 3] = [
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `D65_WHITE` is never used
[INFO] [stdout]  --> src/conversions.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const D65_WHITE: [f32; 3] = [
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "f7eddc6ecb368fde2f9df2be896e635c4a2a8dd0ea427a6b6450d42bc39abf5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7eddc6ecb368fde2f9df2be896e635c4a2a8dd0ea427a6b6450d42bc39abf5f", kill_on_drop: false }`
[INFO] [stdout] f7eddc6ecb368fde2f9df2be896e635c4a2a8dd0ea427a6b6450d42bc39abf5f