[INFO] cloning repository https://github.com/NestorSkiad/nearest_color
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NestorSkiad/nearest_color" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNestorSkiad%2Fnearest_color", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNestorSkiad%2Fnearest_color'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe10931795abe2c23a4de2ec5d3c3b9314d1b2be
[INFO] checking NestorSkiad/nearest_color against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNestorSkiad%2Fnearest_color" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NestorSkiad/nearest_color 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/NestorSkiad/nearest_color
[INFO] finished tweaking git repo https://github.com/NestorSkiad/nearest_color
[INFO] tweaked toml for git repo https://github.com/NestorSkiad/nearest_color written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/NestorSkiad/nearest_color 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]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8dcecae89f56b88af9239c81a2f530083553c149ddc51093b26f1deb99aef250
[INFO] running `Command { std: "docker" "start" "-a" "8dcecae89f56b88af9239c81a2f530083553c149ddc51093b26f1deb99aef250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dcecae89f56b88af9239c81a2f530083553c149ddc51093b26f1deb99aef250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dcecae89f56b88af9239c81a2f530083553c149ddc51093b26f1deb99aef250", kill_on_drop: false }`
[INFO] [stdout] 8dcecae89f56b88af9239c81a2f530083553c149ddc51093b26f1deb99aef250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 98955a366907710ce8059b1380ccd6f50858350d8af33c699a00395d6f7af2dc
[INFO] running `Command { std: "docker" "start" "-a" "98955a366907710ce8059b1380ccd6f50858350d8af33c699a00395d6f7af2dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon-core v1.11.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking clap v4.4.3
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking nearest_color v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ColorGenerator` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct ColorGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_generator` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn color_generator() -> ColorGenerator {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorGenerator` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct ColorGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_generator` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn color_generator() -> ColorGenerator {
[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 9.75s
[INFO] running `Command { std: "docker" "inspect" "98955a366907710ce8059b1380ccd6f50858350d8af33c699a00395d6f7af2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98955a366907710ce8059b1380ccd6f50858350d8af33c699a00395d6f7af2dc", kill_on_drop: false }`
[INFO] [stdout] 98955a366907710ce8059b1380ccd6f50858350d8af33c699a00395d6f7af2dc
[INFO] checking NestorSkiad/nearest_color against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNestorSkiad%2Fnearest_color" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NestorSkiad/nearest_color on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NestorSkiad/nearest_color
[INFO] finished tweaking git repo https://github.com/NestorSkiad/nearest_color
[INFO] tweaked toml for git repo https://github.com/NestorSkiad/nearest_color written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/NestorSkiad/nearest_color 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e62242074f5f7c45dd1114657771337b3403df0250c70f69987f58d7beb53136
[INFO] running `Command { std: "docker" "start" "-a" "e62242074f5f7c45dd1114657771337b3403df0250c70f69987f58d7beb53136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e62242074f5f7c45dd1114657771337b3403df0250c70f69987f58d7beb53136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62242074f5f7c45dd1114657771337b3403df0250c70f69987f58d7beb53136", kill_on_drop: false }`
[INFO] [stdout] e62242074f5f7c45dd1114657771337b3403df0250c70f69987f58d7beb53136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 228be1afe54a9351e5bb104b770cc25b505fdaf60332afccfbb6d555df16f762
[INFO] running `Command { std: "docker" "start" "-a" "228be1afe54a9351e5bb104b770cc25b505fdaf60332afccfbb6d555df16f762", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon-core v1.11.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking clap v4.4.3
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking nearest_color v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ColorGenerator` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct ColorGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_generator` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn color_generator() -> ColorGenerator {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorGenerator` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct ColorGenerator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_generator` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn color_generator() -> ColorGenerator {
[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 10.80s
[INFO] running `Command { std: "docker" "inspect" "228be1afe54a9351e5bb104b770cc25b505fdaf60332afccfbb6d555df16f762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "228be1afe54a9351e5bb104b770cc25b505fdaf60332afccfbb6d555df16f762", kill_on_drop: false }`
[INFO] [stdout] 228be1afe54a9351e5bb104b770cc25b505fdaf60332afccfbb6d555df16f762