[INFO] cloning repository https://github.com/equal-l2/slice-n-shuffle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/equal-l2/slice-n-shuffle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fequal-l2%2Fslice-n-shuffle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fequal-l2%2Fslice-n-shuffle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99dd2f6f06685bf3ac1a5bcba8b72537e418bd9a
[INFO] checking equal-l2/slice-n-shuffle against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fequal-l2%2Fslice-n-shuffle" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/equal-l2/slice-n-shuffle 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/equal-l2/slice-n-shuffle
[INFO] finished tweaking git repo https://github.com/equal-l2/slice-n-shuffle
[INFO] tweaked toml for git repo https://github.com/equal-l2/slice-n-shuffle written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/equal-l2/slice-n-shuffle 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a532e7fa890bca474610ca126089e537de149d2e9963522273c8d43662c494f9
[INFO] running `Command { std: "docker" "start" "-a" "a532e7fa890bca474610ca126089e537de149d2e9963522273c8d43662c494f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a532e7fa890bca474610ca126089e537de149d2e9963522273c8d43662c494f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a532e7fa890bca474610ca126089e537de149d2e9963522273c8d43662c494f9", kill_on_drop: false }`
[INFO] [stdout] a532e7fa890bca474610ca126089e537de149d2e9963522273c8d43662c494f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b7411623f631fb8edfbc404d4da62c370ed5f9327c77e683f2c6e6486cb4ef67
[INFO] running `Command { std: "docker" "start" "-a" "b7411623f631fb8edfbc404d4da62c370ed5f9327c77e683f2c6e6486cb4ef67", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking clap_builder v4.4.7
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking clap v4.4.7
[INFO] [stderr]     Checking slice-n-shuffle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Up` and `Left` are never constructed
[INFO] [stdout]  --> src/similarity.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) enum Direction {
[INFO] [stdout]   |                 --------- variants in this enum
[INFO] [stdout] 4 |     Up,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 5 |     Down,
[INFO] [stdout] 6 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opposite` is never used
[INFO] [stdout]   --> src/similarity.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     pub fn opposite(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Up` and `Left` are never constructed
[INFO] [stdout]  --> src/similarity.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) enum Direction {
[INFO] [stdout]   |                 --------- variants in this enum
[INFO] [stdout] 4 |     Up,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 5 |     Down,
[INFO] [stdout] 6 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `opposite` is never used
[INFO] [stdout]   --> src/similarity.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     pub fn opposite(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "b7411623f631fb8edfbc404d4da62c370ed5f9327c77e683f2c6e6486cb4ef67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7411623f631fb8edfbc404d4da62c370ed5f9327c77e683f2c6e6486cb4ef67", kill_on_drop: false }`
[INFO] [stdout] b7411623f631fb8edfbc404d4da62c370ed5f9327c77e683f2c6e6486cb4ef67