[INFO] cloning repository https://github.com/cct124/png-palettes-optimization
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cct124/png-palettes-optimization" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcct124%2Fpng-palettes-optimization", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcct124%2Fpng-palettes-optimization'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76aa2059e91d3d9179235e6e49214fce5a03425a
[INFO] checking cct124/png-palettes-optimization against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcct124%2Fpng-palettes-optimization" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cct124/png-palettes-optimization
[INFO] finished tweaking git repo https://github.com/cct124/png-palettes-optimization
[INFO] tweaked toml for git repo https://github.com/cct124/png-palettes-optimization written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cct124/png-palettes-optimization on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cct124/png-palettes-optimization 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] [stderr]   Downloaded noisy_float v0.2.0
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded imagequant v4.0.4
[INFO] [stderr]   Downloaded os_str_bytes v6.3.1
[INFO] [stderr]   Downloaded bytemuck v1.12.2
[INFO] [stderr]   Downloaded rayon-core v1.9.3
[INFO] [stderr]   Downloaded rayon v1.5.3
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef48477d8ba8317e4e5b41b240bb1a281b79eaebffa5593131177a166c24253c
[INFO] running `Command { std: "docker" "start" "-a" "ef48477d8ba8317e4e5b41b240bb1a281b79eaebffa5593131177a166c24253c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef48477d8ba8317e4e5b41b240bb1a281b79eaebffa5593131177a166c24253c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef48477d8ba8317e4e5b41b240bb1a281b79eaebffa5593131177a166c24253c", kill_on_drop: false }`
[INFO] [stdout] ef48477d8ba8317e4e5b41b240bb1a281b79eaebffa5593131177a166c24253c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed33dd8f4dfc99c2be8faee8d1601355e3ad10e05bdcd1dd3065b2e31a2f849c
[INFO] running `Command { std: "docker" "start" "-a" "ed33dd8f4dfc99c2be8faee8d1601355e3ad10e05bdcd1dd3065b2e31a2f849c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking bytemuck v1.12.2
[INFO] [stderr]     Checking os_str_bytes v6.3.1
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking rgb v0.8.34
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking imagequant v4.0.4
[INFO] [stderr]    Compiling clap_derive v4.0.18
[INFO] [stderr]     Checking clap v4.0.18
[INFO] [stderr]     Checking png-palettes-optimization v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error::*`
[INFO] [stdout]  --> src/error.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use Error::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clap::builder::Str`
[INFO] [stdout]  --> src/optimization/optimization.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use clap::builder::Str;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unsupported` is never constructed
[INFO] [stdout]  --> src/error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Error {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 7 |     /// Congratulations, you've discovered an edge case
[INFO] [stdout] 8 |     Unsupported,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/thread/thread_pool.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Worker {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 60 |     /// 工作线程id
[INFO] [stdout] 61 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Worker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/optimization/optimization.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |         path: &'a Path,
[INFO] [stdout]    |                -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     ) -> Optimization {
[INFO] [stdout]    |          ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     ) -> Optimization<'a> {
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error::*`
[INFO] [stdout]  --> src/error.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use Error::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clap::builder::Str`
[INFO] [stdout]  --> src/optimization/optimization.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use clap::builder::Str;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Unsupported` is never constructed
[INFO] [stdout]  --> src/error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Error {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 7 |     /// Congratulations, you've discovered an edge case
[INFO] [stdout] 8 |     Unsupported,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/thread/thread_pool.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Worker {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 60 |     /// 工作线程id
[INFO] [stdout] 61 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Worker` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/optimization/optimization.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |         path: &'a Path,
[INFO] [stdout]    |                -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     ) -> Optimization {
[INFO] [stdout]    |          ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     ) -> Optimization<'a> {
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.14s
[INFO] running `Command { std: "docker" "inspect" "ed33dd8f4dfc99c2be8faee8d1601355e3ad10e05bdcd1dd3065b2e31a2f849c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed33dd8f4dfc99c2be8faee8d1601355e3ad10e05bdcd1dd3065b2e31a2f849c", kill_on_drop: false }`
[INFO] [stdout] ed33dd8f4dfc99c2be8faee8d1601355e3ad10e05bdcd1dd3065b2e31a2f849c
