[INFO] updating cached repository https://github.com/aochagavia/Rust-Sudoku-Solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49f77dabb932987804b21e9a44945d359ab9ccfe
[INFO] checking aochagavia/Rust-Sudoku-Solver against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2FRust-Sudoku-Solver" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aochagavia/Rust-Sudoku-Solver on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aochagavia/Rust-Sudoku-Solver
[INFO] finished tweaking git repo https://github.com/aochagavia/Rust-Sudoku-Solver
[INFO] tweaked toml for git repo https://github.com/aochagavia/Rust-Sudoku-Solver written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/aochagavia/Rust-Sudoku-Solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58bf93b6cb2aa8138bfdb0b852f85fe7109696bd97ace56613e0138d9f911dcb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "58bf93b6cb2aa8138bfdb0b852f85fe7109696bd97ace56613e0138d9f911dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58bf93b6cb2aa8138bfdb0b852f85fe7109696bd97ace56613e0138d9f911dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58bf93b6cb2aa8138bfdb0b852f85fe7109696bd97ace56613e0138d9f911dcb", kill_on_drop: false }`
[INFO] [stdout] 58bf93b6cb2aa8138bfdb0b852f85fe7109696bd97ace56613e0138d9f911dcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 487ad8a133c8c95be192060d3d7d1e3181165fe8a86e94667ecc606147779381
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "487ad8a133c8c95be192060d3d7d1e3181165fe8a86e94667ecc606147779381", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking sudoku v0.7.0
[INFO] [stderr]     Checking ssolver v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `from_reader` found for struct `sudoku::Sudoku` in the current scope
[INFO] [stdout]   --> src/main.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut sudoku = Sudoku::from_reader(BufReader::new(file)).unwrap();
[INFO] [stdout]    |                              ^^^^^^^^^^^ function or associated item not found in `sudoku::Sudoku`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ssolver`.
[INFO] [stdout] error[E0599]: no function or associated item named `from_reader` found for struct `sudoku::Sudoku` in the current scope
[INFO] [stdout]   --> src/main.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut sudoku = Sudoku::from_reader(BufReader::new(file)).unwrap();
[INFO] [stdout]    |                              ^^^^^^^^^^^ function or associated item not found in `sudoku::Sudoku`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "487ad8a133c8c95be192060d3d7d1e3181165fe8a86e94667ecc606147779381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487ad8a133c8c95be192060d3d7d1e3181165fe8a86e94667ecc606147779381", kill_on_drop: false }`
[INFO] [stdout] 487ad8a133c8c95be192060d3d7d1e3181165fe8a86e94667ecc606147779381