[INFO] fetching crate puzzle-utils 0.3.0...
[INFO] checking puzzle-utils-0.3.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate puzzle-utils 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate puzzle-utils 0.3.0
[INFO] finished tweaking crates.io crate puzzle-utils 0.3.0
[INFO] tweaked toml for crates.io crate puzzle-utils 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate puzzle-utils 0.3.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 138 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b6907f7032ab84070b5f8c3bee8e19d1e41ca8d65661047f4cbe37c7055235e
[INFO] running `Command { std: "docker" "start" "-a" "9b6907f7032ab84070b5f8c3bee8e19d1e41ca8d65661047f4cbe37c7055235e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b6907f7032ab84070b5f8c3bee8e19d1e41ca8d65661047f4cbe37c7055235e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6907f7032ab84070b5f8c3bee8e19d1e41ca8d65661047f4cbe37c7055235e", kill_on_drop: false }`
[INFO] [stdout] 9b6907f7032ab84070b5f8c3bee8e19d1e41ca8d65661047f4cbe37c7055235e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 770d173da89796eb5d3f04699d2c656a84cd7b8d6cdc2922a7ca5f17a90d8cf9
[INFO] running `Command { std: "docker" "start" "-a" "770d173da89796eb5d3f04699d2c656a84cd7b8d6cdc2922a7ca5f17a90d8cf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]     Checking adler2 v2.0.1
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[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking arrayvec v0.7.6
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[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking num-integer v0.1.46
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[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling profiling-procmacros v1.0.17
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking profiling v1.0.17
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking v_frame v0.3.9
[INFO] [stderr]     Checking av1-grain v0.2.4
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[INFO] [stderr]     Checking image v0.25.6
[INFO] [stderr]     Checking imageproc v0.25.0
[INFO] [stderr]     Checking puzzle-utils v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `grid`
[INFO] [stdout]    --> src/puzzles/nonogram/mod.rs:119:24
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn recursive_backtrack(grid: &mut [Square], col: &[Vec<usize>], row: &[Vec<usize>]) {}
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/puzzles/nonogram/mod.rs:119:45
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn recursive_backtrack(grid: &mut [Square], col: &[Vec<usize>], row: &[Vec<usize>]) {}
[INFO] [stdout]     |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]    --> src/puzzles/nonogram/mod.rs:119:65
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn recursive_backtrack(grid: &mut [Square], col: &[Vec<usize>], row: &[Vec<usize>]) {}
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grid`
[INFO] [stdout]    --> src/puzzles/nonogram/mod.rs:119:24
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn recursive_backtrack(grid: &mut [Square], col: &[Vec<usize>], row: &[Vec<usize>]) {}
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/puzzles/nonogram/mod.rs:119:45
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn recursive_backtrack(grid: &mut [Square], col: &[Vec<usize>], row: &[Vec<usize>]) {}
[INFO] [stdout]     |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]    --> src/puzzles/nonogram/mod.rs:119:65
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn recursive_backtrack(grid: &mut [Square], col: &[Vec<usize>], row: &[Vec<usize>]) {}
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.92s
[INFO] running `Command { std: "docker" "inspect" "770d173da89796eb5d3f04699d2c656a84cd7b8d6cdc2922a7ca5f17a90d8cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770d173da89796eb5d3f04699d2c656a84cd7b8d6cdc2922a7ca5f17a90d8cf9", kill_on_drop: false }`
[INFO] [stdout] 770d173da89796eb5d3f04699d2c656a84cd7b8d6cdc2922a7ca5f17a90d8cf9