[INFO] cloning repository https://github.com/DangoWare/palettegen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DangoWare/palettegen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDangoWare%2Fpalettegen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDangoWare%2Fpalettegen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a618f5b23f65028febcf1123d560a76509ba7aa3
[INFO] checking DangoWare/palettegen against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDangoWare%2Fpalettegen" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DangoWare/palettegen on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DangoWare/palettegen
[INFO] finished tweaking git repo https://github.com/DangoWare/palettegen
[INFO] tweaked toml for git repo https://github.com/DangoWare/palettegen written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DangoWare/palettegen 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded numquant v0.2.0
[INFO] [stderr]   Downloaded angle v0.5.0
[INFO] [stderr]   Downloaded color-rs v0.8.0
[INFO] [stderr]   Downloaded palette_derive v0.7.3
[INFO] [stderr]   Downloaded palette v0.7.3
[INFO] [stderr]   Downloaded color-thief v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69d1f75db39b6ceeea45ceeb66cbf893be20774472ead7b5e3e8d7db19828c61
[INFO] running `Command { std: "docker" "start" "-a" "69d1f75db39b6ceeea45ceeb66cbf893be20774472ead7b5e3e8d7db19828c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69d1f75db39b6ceeea45ceeb66cbf893be20774472ead7b5e3e8d7db19828c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69d1f75db39b6ceeea45ceeb66cbf893be20774472ead7b5e3e8d7db19828c61", kill_on_drop: false }`
[INFO] [stdout] 69d1f75db39b6ceeea45ceeb66cbf893be20774472ead7b5e3e8d7db19828c61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21e8f814a1538c88f23adeda994e6733fba1fbeb801ea19716d130bd66a5a10e
[INFO] running `Command { std: "docker" "start" "-a" "21e8f814a1538c88f23adeda994e6733fba1fbeb801ea19716d130bd66a5a10e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking phf_shared v0.11.2
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]    Compiling palette v0.7.3
[INFO] [stderr]     Checking rgb v0.8.36
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking fast-srgb8 v1.0.0
[INFO] [stderr]     Checking numquant v0.2.0
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]     Checking color-thief v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking tiff v0.9.0
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]    Compiling palette_derive v0.7.3
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking angle v0.5.0
[INFO] [stderr]     Checking color-rs v0.8.0
[INFO] [stderr]     Checking palettegen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `EuclideanDistance`
[INFO] [stdout]  --> src/main.rs:4:39
[INFO] [stdout]   |
[INFO] [stdout] 4 | use palette::color_difference::{HyAb, EuclideanDistance};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EuclideanDistance`
[INFO] [stdout]  --> src/main.rs:4:39
[INFO] [stdout]   |
[INFO] [stdout] 4 | use palette::color_difference::{HyAb, EuclideanDistance};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.65s
[INFO] running `Command { std: "docker" "inspect" "21e8f814a1538c88f23adeda994e6733fba1fbeb801ea19716d130bd66a5a10e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e8f814a1538c88f23adeda994e6733fba1fbeb801ea19716d130bd66a5a10e", kill_on_drop: false }`
[INFO] [stdout] 21e8f814a1538c88f23adeda994e6733fba1fbeb801ea19716d130bd66a5a10e