[INFO] cloning repository https://github.com/maximilian-heeg/sudoku-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maximilian-heeg/sudoku-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximilian-heeg%2Fsudoku-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximilian-heeg%2Fsudoku-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cad61a419bdade5ee945ea1a1d75dea909e3bc0
[INFO] checking maximilian-heeg/sudoku-rust against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaximilian-heeg%2Fsudoku-rust" "/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/maximilian-heeg/sudoku-rust
[INFO] finished tweaking git repo https://github.com/maximilian-heeg/sudoku-rust
[INFO] tweaked toml for git repo https://github.com/maximilian-heeg/sudoku-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maximilian-heeg/sudoku-rust on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maximilian-heeg/sudoku-rust 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.8.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded unicode-width v0.1.10
[INFO] [stderr]   Downloaded console v0.15.5
[INFO] [stderr]   Downloaded portable-atomic v0.3.19
[INFO] [stderr]   Downloaded indicatif v0.17.3
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.15
[INFO] [stderr]   Downloaded libc v0.2.141
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ee8e349ed90d1dc0c0e075f1e59ec13461c18e6abe570b5a9e52417306e41ef
[INFO] running `Command { std: "docker" "start" "-a" "2ee8e349ed90d1dc0c0e075f1e59ec13461c18e6abe570b5a9e52417306e41ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ee8e349ed90d1dc0c0e075f1e59ec13461c18e6abe570b5a9e52417306e41ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee8e349ed90d1dc0c0e075f1e59ec13461c18e6abe570b5a9e52417306e41ef", kill_on_drop: false }`
[INFO] [stdout] 2ee8e349ed90d1dc0c0e075f1e59ec13461c18e6abe570b5a9e52417306e41ef
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f948c0d9445b11e0b80a01d3a643a2ed0b71e1a1552b761b1acbda54ef59366a
[INFO] running `Command { std: "docker" "start" "-a" "f948c0d9445b11e0b80a01d3a643a2ed0b71e1a1552b761b1acbda54ef59366a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking console v0.15.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking indicatif v0.17.3
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 &self.fields[(row * 9)],
[INFO] [stdout]     |                              ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -                 &self.fields[(row * 9)],
[INFO] [stdout] 158 +                 &self.fields[row * 9 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:159:30
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 &self.fields[(row * 9 + 1)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -                 &self.fields[(row * 9 + 1)],
[INFO] [stdout] 159 +                 &self.fields[row * 9 + 1 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:160:30
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 &self.fields[(row * 9 + 2)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -                 &self.fields[(row * 9 + 2)],
[INFO] [stdout] 160 +                 &self.fields[row * 9 + 2 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:161:30
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 &self.fields[(row * 9 + 3)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -                 &self.fields[(row * 9 + 3)],
[INFO] [stdout] 161 +                 &self.fields[row * 9 + 3 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:162:30
[INFO] [stdout]     |
[INFO] [stdout] 162 |                 &self.fields[(row * 9 + 4)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -                 &self.fields[(row * 9 + 4)],
[INFO] [stdout] 162 +                 &self.fields[row * 9 + 4 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 &self.fields[(row * 9 + 5)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -                 &self.fields[(row * 9 + 5)],
[INFO] [stdout] 163 +                 &self.fields[row * 9 + 5 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:164:30
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 &self.fields[(row * 9 + 6)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -                 &self.fields[(row * 9 + 6)],
[INFO] [stdout] 164 +                 &self.fields[row * 9 + 6 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:165:30
[INFO] [stdout]     |
[INFO] [stdout] 165 |                 &self.fields[(row * 9 + 7)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 165 -                 &self.fields[(row * 9 + 7)],
[INFO] [stdout] 165 +                 &self.fields[row * 9 + 7 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:166:30
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 &self.fields[(row * 9 + 8)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 166 -                 &self.fields[(row * 9 + 8)],
[INFO] [stdout] 166 +                 &self.fields[row * 9 + 8 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 &self.fields[(row * 9)],
[INFO] [stdout]     |                              ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -                 &self.fields[(row * 9)],
[INFO] [stdout] 158 +                 &self.fields[row * 9 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:159:30
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 &self.fields[(row * 9 + 1)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -                 &self.fields[(row * 9 + 1)],
[INFO] [stdout] 159 +                 &self.fields[row * 9 + 1 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:160:30
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 &self.fields[(row * 9 + 2)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -                 &self.fields[(row * 9 + 2)],
[INFO] [stdout] 160 +                 &self.fields[row * 9 + 2 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:161:30
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 &self.fields[(row * 9 + 3)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 161 -                 &self.fields[(row * 9 + 3)],
[INFO] [stdout] 161 +                 &self.fields[row * 9 + 3 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:162:30
[INFO] [stdout]     |
[INFO] [stdout] 162 |                 &self.fields[(row * 9 + 4)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -                 &self.fields[(row * 9 + 4)],
[INFO] [stdout] 162 +                 &self.fields[row * 9 + 4 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 &self.fields[(row * 9 + 5)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -                 &self.fields[(row * 9 + 5)],
[INFO] [stdout] 163 +                 &self.fields[row * 9 + 5 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:164:30
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 &self.fields[(row * 9 + 6)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -                 &self.fields[(row * 9 + 6)],
[INFO] [stdout] 164 +                 &self.fields[row * 9 + 6 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:165:30
[INFO] [stdout]     |
[INFO] [stdout] 165 |                 &self.fields[(row * 9 + 7)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 165 -                 &self.fields[(row * 9 + 7)],
[INFO] [stdout] 165 +                 &self.fields[row * 9 + 7 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:166:30
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 &self.fields[(row * 9 + 8)],
[INFO] [stdout]     |                              ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 166 -                 &self.fields[(row * 9 + 8)],
[INFO] [stdout] 166 +                 &self.fields[row * 9 + 8 ],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.19s
[INFO] running `Command { std: "docker" "inspect" "f948c0d9445b11e0b80a01d3a643a2ed0b71e1a1552b761b1acbda54ef59366a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f948c0d9445b11e0b80a01d3a643a2ed0b71e1a1552b761b1acbda54ef59366a", kill_on_drop: false }`
[INFO] [stdout] f948c0d9445b11e0b80a01d3a643a2ed0b71e1a1552b761b1acbda54ef59366a
