[INFO] cloning repository https://github.com/mingerfan/dacinglink_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingerfan/dacinglink_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingerfan%2Fdacinglink_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingerfan%2Fdacinglink_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e27025bbf000ddae199057e9fc560ac3d0228997
[INFO] checking mingerfan/dacinglink_rs/e27025bbf000ddae199057e9fc560ac3d0228997 against master#31a9463c6e2794a59ce57a8f37abc6966afc2a58 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingerfan%2Fdacinglink_rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mingerfan/dacinglink_rs
[INFO] finished tweaking git repo https://github.com/mingerfan/dacinglink_rs
[INFO] tweaked toml for git repo https://github.com/mingerfan/dacinglink_rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mingerfan/dacinglink_rs on toolchain 31a9463c6e2794a59ce57a8f37abc6966afc2a58
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mingerfan/dacinglink_rs 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" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded link-cplusplus v1.0.9
[INFO] [stderr]   Downloaded scratch v1.0.7
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.129
[INFO] [stderr]   Downloaded plotters-svg v0.3.6
[INFO] [stderr]   Downloaded plotters-backend v0.3.6
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.129
[INFO] [stderr]   Downloaded clap v4.5.16
[INFO] [stderr]   Downloaded cxx-build v1.0.129
[INFO] [stderr]   Downloaded serde_json v1.0.118
[INFO] [stderr]   Downloaded plotters v0.3.6
[INFO] [stderr]   Downloaded clap_builder v4.5.15
[INFO] [stderr]   Downloaded cxx v1.0.129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d18f911924acf8bf747272bdc6c3fb18d2ea43642f302286a8d22f08dfec21ea
[INFO] running `Command { std: "docker" "start" "-a" "d18f911924acf8bf747272bdc6c3fb18d2ea43642f302286a8d22f08dfec21ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d18f911924acf8bf747272bdc6c3fb18d2ea43642f302286a8d22f08dfec21ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18f911924acf8bf747272bdc6c3fb18d2ea43642f302286a8d22f08dfec21ea", kill_on_drop: false }`
[INFO] [stdout] d18f911924acf8bf747272bdc6c3fb18d2ea43642f302286a8d22f08dfec21ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61183197545d3ab34e162662ef1f753999a561ef2836de73e6e29c11e7eb2991
[INFO] running `Command { std: "docker" "start" "-a" "61183197545d3ab34e162662ef1f753999a561ef2836de73e6e29c11e7eb2991", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.1.31
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling serde_json v1.0.118
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.129
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking anstyle v1.0.8
[INFO] [stderr]     Checking clap_lex v0.7.2
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking plotters-backend v0.3.6
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking clap_builder v4.5.15
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking plotters-svg v0.3.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling link-cplusplus v1.0.9
[INFO] [stderr]    Compiling cxx v1.0.129
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking plotters v0.3.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.5.16
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking proptest v1.5.0
[INFO] [stderr]    Compiling cxx-build v1.0.129
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.129
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling dancinglink v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]   --> src/utils.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Matrix(pub Vec<Vec<usize>>);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.44s
[INFO] running `Command { std: "docker" "inspect" "61183197545d3ab34e162662ef1f753999a561ef2836de73e6e29c11e7eb2991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61183197545d3ab34e162662ef1f753999a561ef2836de73e6e29c11e7eb2991", kill_on_drop: false }`
[INFO] [stdout] 61183197545d3ab34e162662ef1f753999a561ef2836de73e6e29c11e7eb2991