[INFO] cloning repository https://github.com/arzg/spectra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arzg/spectra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farzg%2Fspectra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farzg%2Fspectra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98c2aac7154c5b1e402f5629b8311c9118cd1306
[INFO] checking arzg/spectra against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farzg%2Fspectra" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arzg/spectra on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arzg/spectra
[INFO] finished tweaking git repo https://github.com/arzg/spectra
[INFO] tweaked toml for git repo https://github.com/arzg/spectra written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/arzg/spectra already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tincture v0.5.0
[INFO] [stderr]   Downloaded mottle v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] d304eae8a4e783af6c40b7f450f728e42b292887336339179899636dd3d445d3
[INFO] running `Command { std: "docker" "start" "-a" "d304eae8a4e783af6c40b7f450f728e42b292887336339179899636dd3d445d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d304eae8a4e783af6c40b7f450f728e42b292887336339179899636dd3d445d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d304eae8a4e783af6c40b7f450f728e42b292887336339179899636dd3d445d3", kill_on_drop: false }`
[INFO] [stdout] d304eae8a4e783af6c40b7f450f728e42b292887336339179899636dd3d445d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fddcdb8210293d85ae1168484bc5580f3d034d3d9ae922678c17cb00ff4b81f
[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" "8fddcdb8210293d85ae1168484bc5580f3d034d3d9ae922678c17cb00ff4b81f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking tincture v0.5.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking mottle v0.1.1
[INFO] [stderr]     Checking spectra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `emphasized`
[INFO] [stdout]   --> src/palette.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub(crate) fn emphasized(&self) -> Oklch {
[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: `orange`
[INFO] [stdout]   --> src/palette.rs:84:19
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) fn orange(&self) -> Oklch {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `violet`
[INFO] [stdout]   --> src/palette.rs:96:19
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub(crate) fn violet(&self) -> Oklch {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `oklab`
[INFO] [stdout]    --> src/palette.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn oklab(l: f32, a: f32, b: f32) -> Oklab {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `emphasized`
[INFO] [stdout]   --> src/palette.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub(crate) fn emphasized(&self) -> Oklch {
[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: `orange`
[INFO] [stdout]   --> src/palette.rs:84:19
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub(crate) fn orange(&self) -> Oklch {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `violet`
[INFO] [stdout]   --> src/palette.rs:96:19
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub(crate) fn violet(&self) -> Oklch {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `oklab`
[INFO] [stdout]    --> src/palette.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn oklab(l: f32, a: f32, b: f32) -> Oklab {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.41s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8fddcdb8210293d85ae1168484bc5580f3d034d3d9ae922678c17cb00ff4b81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fddcdb8210293d85ae1168484bc5580f3d034d3d9ae922678c17cb00ff4b81f", kill_on_drop: false }`
[INFO] [stdout] 8fddcdb8210293d85ae1168484bc5580f3d034d3d9ae922678c17cb00ff4b81f