[INFO] cloning repository https://github.com/piotreknow02/sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piotreknow02/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiotreknow02%2Fsudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiotreknow02%2Fsudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bbf00f2b3ecc890dbb00140a993159d0b4d69b1
[INFO] checking piotreknow02/sudoku-solver against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiotreknow02%2Fsudoku-solver" "/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/piotreknow02/sudoku-solver 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/piotreknow02/sudoku-solver
[INFO] finished tweaking git repo https://github.com/piotreknow02/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/piotreknow02/sudoku-solver written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/piotreknow02/sudoku-solver 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-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] ae07a8827845f2a001947d4ca13dcf040ab19eedea9a329af8e429b0ee592f27
[INFO] running `Command { std: "docker" "start" "-a" "ae07a8827845f2a001947d4ca13dcf040ab19eedea9a329af8e429b0ee592f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae07a8827845f2a001947d4ca13dcf040ab19eedea9a329af8e429b0ee592f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae07a8827845f2a001947d4ca13dcf040ab19eedea9a329af8e429b0ee592f27", kill_on_drop: false }`
[INFO] [stdout] ae07a8827845f2a001947d4ca13dcf040ab19eedea9a329af8e429b0ee592f27
[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] 6ec1b6f1d461db91f3218a7763a898973c370a42364d44b37ed9a0edb37a5864
[INFO] running `Command { std: "docker" "start" "-a" "6ec1b6f1d461db91f3218a7763a898973c370a42364d44b37ed9a0edb37a5864", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.21
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking clap v4.3.21
[INFO] [stderr]     Checking sudoku-solver v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/tokenizer.rs:5:45
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{fs::File, io::{BufReader, Write}, result::Result, error::Error};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/tokenizer.rs:5:45
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{fs::File, io::{BufReader, Write}, result::Result, error::Error};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.45s
[INFO] running `Command { std: "docker" "inspect" "6ec1b6f1d461db91f3218a7763a898973c370a42364d44b37ed9a0edb37a5864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec1b6f1d461db91f3218a7763a898973c370a42364d44b37ed9a0edb37a5864", kill_on_drop: false }`
[INFO] [stdout] 6ec1b6f1d461db91f3218a7763a898973c370a42364d44b37ed9a0edb37a5864