[INFO] cloning repository https://github.com/AlZeck/rustedSudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlZeck/rustedSudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlZeck%2FrustedSudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlZeck%2FrustedSudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89baff8290ea0506774b6952189563b58c4227f4
[INFO] testing AlZeck/rustedSudoku against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlZeck%2FrustedSudoku" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AlZeck/rustedSudoku
[INFO] finished tweaking git repo https://github.com/AlZeck/rustedSudoku
[INFO] tweaked toml for git repo https://github.com/AlZeck/rustedSudoku written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlZeck/rustedSudoku on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlZeck/rustedSudoku 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcb32a58d298691a38420674e77eaeadee546f85597dbe1baceb30b5243ae346
[INFO] running `Command { std: "docker" "start" "-a" "dcb32a58d298691a38420674e77eaeadee546f85597dbe1baceb30b5243ae346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcb32a58d298691a38420674e77eaeadee546f85597dbe1baceb30b5243ae346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcb32a58d298691a38420674e77eaeadee546f85597dbe1baceb30b5243ae346", kill_on_drop: false }`
[INFO] [stdout] dcb32a58d298691a38420674e77eaeadee546f85597dbe1baceb30b5243ae346
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 314ef44effd1905ac2de484c0752766e08386a9ca15198722d884345e078f71e
[INFO] running `Command { std: "docker" "start" "-a" "314ef44effd1905ac2de484c0752766e08386a9ca15198722d884345e078f71e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusted_sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, and `fs`
[INFO] [stdout]  --> src/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                   ^^^^^^^  ^^^^^^^
[INFO] [stdout] 3 |     fs,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/sudoku.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/sudoku.rs:119:51
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout]     |                                                   ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout] 119 +                 let cell = &self.board[(row + i)][col + j];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/sudoku.rs:119:40
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout]     |                                        ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout] 119 +                 let cell = &self.board[row + i][(col + j)];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]    --> src/sudoku.rs:301:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl Sudoku {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 301 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "314ef44effd1905ac2de484c0752766e08386a9ca15198722d884345e078f71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314ef44effd1905ac2de484c0752766e08386a9ca15198722d884345e078f71e", kill_on_drop: false }`
[INFO] [stdout] 314ef44effd1905ac2de484c0752766e08386a9ca15198722d884345e078f71e
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a15fea6cdfd424d605867ce6e7a2bf0df24e97f924d134eadae30cd5f131e32
[INFO] running `Command { std: "docker" "start" "-a" "0a15fea6cdfd424d605867ce6e7a2bf0df24e97f924d134eadae30cd5f131e32", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusted_sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, and `fs`
[INFO] [stdout]  --> src/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                   ^^^^^^^  ^^^^^^^
[INFO] [stdout] 3 |     fs,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/sudoku.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/sudoku.rs:119:51
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout]     |                                                   ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout] 119 +                 let cell = &self.board[(row + i)][col + j];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/sudoku.rs:119:40
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout]     |                                        ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 119 -                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stdout] 119 +                 let cell = &self.board[row + i][(col + j)];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]    --> src/sudoku.rs:301:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl Sudoku {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 301 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "0a15fea6cdfd424d605867ce6e7a2bf0df24e97f924d134eadae30cd5f131e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a15fea6cdfd424d605867ce6e7a2bf0df24e97f924d134eadae30cd5f131e32", kill_on_drop: false }`
[INFO] [stdout] 0a15fea6cdfd424d605867ce6e7a2bf0df24e97f924d134eadae30cd5f131e32
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4bdaa56769a23216190103b34584441e6517d8fffa67f6bdf735ed00973bb9fd
[INFO] running `Command { std: "docker" "start" "-a" "4bdaa56769a23216190103b34584441e6517d8fffa67f6bdf735ed00973bb9fd", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `HashMap`, `HashSet`, and `fs`
[INFO] [stderr]  --> src/main.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 |     collections::{HashMap, HashSet},
[INFO] [stderr]   |                   ^^^^^^^  ^^^^^^^
[INFO] [stderr] 3 |     fs,
[INFO] [stderr]   |     ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/sudoku.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/sudoku.rs:119:51
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stderr]     |                                                   ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 119 -                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stderr] 119 +                 let cell = &self.board[(row + i)][col + j];
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/sudoku.rs:119:40
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stderr]     |                                        ^       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 119 -                 let cell = &self.board[(row + i)][(col + j)];
[INFO] [stderr] 119 +                 let cell = &self.board[row + i][(col + j)];
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: method `to_string` is never used
[INFO] [stderr]    --> src/sudoku.rs:301:12
[INFO] [stderr]     |
[INFO] [stderr] 109 | impl Sudoku {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 301 |     pub fn to_string(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusted_sudoku` (bin "rusted_sudoku" test) generated 5 warnings (run `cargo fix --bin "rusted_sudoku" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rusted_sudoku-183a18662286319a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4bdaa56769a23216190103b34584441e6517d8fffa67f6bdf735ed00973bb9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bdaa56769a23216190103b34584441e6517d8fffa67f6bdf735ed00973bb9fd", kill_on_drop: false }`
[INFO] [stdout] 4bdaa56769a23216190103b34584441e6517d8fffa67f6bdf735ed00973bb9fd
