[INFO] cloning repository https://github.com/Michael-Gubb/rust-sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael-Gubb/rust-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-Gubb%2Frust-sudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-Gubb%2Frust-sudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 639b6dc8030dc46bed23ea1d51adb36df71cce71
[INFO] testing Michael-Gubb/rust-sudoku against master#160e7623e8cbbf1feab2b6e2a24733a98c7bde9c for pr-145628-retry-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-Gubb%2Frust-sudoku" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Michael-Gubb/rust-sudoku
[INFO] finished tweaking git repo https://github.com/Michael-Gubb/rust-sudoku
[INFO] tweaked toml for git repo https://github.com/Michael-Gubb/rust-sudoku written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Michael-Gubb/rust-sudoku on toolchain 160e7623e8cbbf1feab2b6e2a24733a98c7bde9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Michael-Gubb/rust-sudoku 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" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71e1fe4453ed668d5faa4e4d5a6dd4044d01cfd196d9ddd75d1ee65111e13ea4
[INFO] running `Command { std: "docker" "start" "-a" "71e1fe4453ed668d5faa4e4d5a6dd4044d01cfd196d9ddd75d1ee65111e13ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71e1fe4453ed668d5faa4e4d5a6dd4044d01cfd196d9ddd75d1ee65111e13ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e1fe4453ed668d5faa4e4d5a6dd4044d01cfd196d9ddd75d1ee65111e13ea4", kill_on_drop: false }`
[INFO] [stdout] 71e1fe4453ed668d5faa4e4d5a6dd4044d01cfd196d9ddd75d1ee65111e13ea4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5bb54a902c20c3ba952026955f0c9cbb4bcf71eeed5630ea63d2d5efd67bbc5
[INFO] running `Command { std: "docker" "start" "-a" "f5bb54a902c20c3ba952026955f0c9cbb4bcf71eeed5630ea63d2d5efd67bbc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `SudokuRow` is never used
[INFO] [stdout]   --> src/main.rs:69:6
[INFO] [stdout]    |
[INFO] [stdout] 69 | enum SudokuRow {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SudokuColumn` is never used
[INFO] [stdout]   --> src/main.rs:82:6
[INFO] [stdout]    |
[INFO] [stdout] 82 | enum SudokuColumn {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FilledSudokuError` is never used
[INFO] [stdout]   --> src/main.rs:94:6
[INFO] [stdout]    |
[INFO] [stdout] 94 | enum FilledSudokuError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FilledSudoku` is never constructed
[INFO] [stdout]    --> src/main.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | struct FilledSudoku {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_string` is never used
[INFO] [stdout]    --> src/main.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl FilledSudoku {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 104 |     // Converts from string without formatting, does not check for validity
[INFO] [stdout] 105 |     fn from_string(r: &str) -> Result<FilledSudoku, FilledSudokuError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f5bb54a902c20c3ba952026955f0c9cbb4bcf71eeed5630ea63d2d5efd67bbc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bb54a902c20c3ba952026955f0c9cbb4bcf71eeed5630ea63d2d5efd67bbc5", kill_on_drop: false }`
[INFO] [stdout] f5bb54a902c20c3ba952026955f0c9cbb4bcf71eeed5630ea63d2d5efd67bbc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a1af9d7881b704f2225756a63dc9a846e23af7f437e889a7c6ee193ff416702
[INFO] running `Command { std: "docker" "start" "-a" "0a1af9d7881b704f2225756a63dc9a846e23af7f437e889a7c6ee193ff416702", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `SudokuRow` is never used
[INFO] [stdout]   --> src/main.rs:69:6
[INFO] [stdout]    |
[INFO] [stdout] 69 | enum SudokuRow {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SudokuColumn` is never used
[INFO] [stdout]   --> src/main.rs:82:6
[INFO] [stdout]    |
[INFO] [stdout] 82 | enum SudokuColumn {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "0a1af9d7881b704f2225756a63dc9a846e23af7f437e889a7c6ee193ff416702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1af9d7881b704f2225756a63dc9a846e23af7f437e889a7c6ee193ff416702", kill_on_drop: false }`
[INFO] [stdout] 0a1af9d7881b704f2225756a63dc9a846e23af7f437e889a7c6ee193ff416702
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0e95c4a7e23891897f3af892ee304b8c54dc83ac6cade0d7783bf23996892fd8
[INFO] running `Command { std: "docker" "start" "-a" "0e95c4a7e23891897f3af892ee304b8c54dc83ac6cade0d7783bf23996892fd8", kill_on_drop: false }`
[INFO] [stderr] warning: enum `SudokuRow` is never used
[INFO] [stderr]   --> src/main.rs:69:6
[INFO] [stderr]    |
[INFO] [stderr] 69 | enum SudokuRow {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `SudokuColumn` is never used
[INFO] [stderr]   --> src/main.rs:82:6
[INFO] [stderr]    |
[INFO] [stderr] 82 | enum SudokuColumn {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-sudoku` (bin "rust-sudoku" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_sudoku-e8a83955e9a6fceb)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::filled_sudoku ... ok
[INFO] [stdout] test test::cell_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0e95c4a7e23891897f3af892ee304b8c54dc83ac6cade0d7783bf23996892fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e95c4a7e23891897f3af892ee304b8c54dc83ac6cade0d7783bf23996892fd8", kill_on_drop: false }`
[INFO] [stdout] 0e95c4a7e23891897f3af892ee304b8c54dc83ac6cade0d7783bf23996892fd8