[INFO] cloning repository https://github.com/Skipants/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/Skipants/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkipants%2Fsudoku_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkipants%2Fsudoku_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2213d71b3e001dfb5997b07e26b3b21ccf97fd6
[INFO] checking Skipants/sudoku_solver against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkipants%2Fsudoku_solver" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Skipants/sudoku_solver on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Skipants/sudoku_solver
[INFO] finished tweaking git repo https://github.com/Skipants/sudoku_solver
[INFO] tweaked toml for git repo https://github.com/Skipants/sudoku_solver written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Skipants/sudoku_solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55afcb244c84205c8ffd2729d22f53a13fd86c6896f4d75244fe00044e46ad23
[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" "55afcb244c84205c8ffd2729d22f53a13fd86c6896f4d75244fe00044e46ad23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55afcb244c84205c8ffd2729d22f53a13fd86c6896f4d75244fe00044e46ad23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55afcb244c84205c8ffd2729d22f53a13fd86c6896f4d75244fe00044e46ad23", kill_on_drop: false }`
[INFO] [stdout] 55afcb244c84205c8ffd2729d22f53a13fd86c6896f4d75244fe00044e46ad23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d5d6495f0c74cbc305bac8f9ce6d017d7c039154ae76848166ec71b9fa317cfa
[INFO] running `Command { std: "docker" "start" "-a" "d5d6495f0c74cbc305bac8f9ce6d017d7c039154ae76848166ec71b9fa317cfa", kill_on_drop: false }`
[INFO] [stderr]     Checking sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `sole_candidate`
[INFO] [stdout]  --> src/strategies/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod sole_candidate;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `sole_candidate`, create file "src/strategies/sole_candidate.rs" or "src/strategies/sole_candidate/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `sudoku_cell_bitmask`
[INFO] [stdout]  --> src/strategies/column_row_exclusion.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sudoku_cell_bitmask;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `sudoku_cell_bitmask` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `sudoku_cell_bitmask`
[INFO] [stdout]  --> src/strategies/unique_candidate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sudoku_cell_bitmask;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `sudoku_cell_bitmask` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `solve` in module `strategies::sole_candidate`
[INFO] [stdout]   --> src/main.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |         strategies::sole_candidate::solve(board, x, y);
[INFO] [stdout]    |                                     ^^^^^ not found in `strategies::sole_candidate`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 3  | use strategies::column_row_exclusion::solve;
[INFO] [stdout]    |
[INFO] [stdout] 3  | use strategies::unique_candidate::solve;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]   --> src/main.rs:31:44
[INFO] [stdout]    |
[INFO] [stdout] 31 |         strategies::sole_candidate::solve(board, x, y);
[INFO] [stdout]    |                                                  ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/main.rs:31:47
[INFO] [stdout]    |
[INFO] [stdout] 31 |         strategies::sole_candidate::solve(board, x, y);
[INFO] [stdout]    |                                                     ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/cell.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 1...9 => Contents::Value(candidates.value),
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/main.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn fill_board_from_file(filename: String) -> Result<Board, std::io::Error> {
[INFO] [stdout]    |                                                     ^^^^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
[INFO] [stdout] help: consider using the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn fill_board_from_file(filename: String) -> Result<Board<'static>, std::io::Error> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0106, E0425, E0432, E0583.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku_solver` due to 8 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0583]: file not found for module `sole_candidate`
[INFO] [stdout]  --> src/strategies/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod sole_candidate;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `sole_candidate`, create file "src/strategies/sole_candidate.rs" or "src/strategies/sole_candidate/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `sudoku_cell_bitmask`
[INFO] [stdout]  --> src/strategies/column_row_exclusion.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sudoku_cell_bitmask;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `sudoku_cell_bitmask` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `sudoku_cell_bitmask`
[INFO] [stdout]  --> src/strategies/unique_candidate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sudoku_cell_bitmask;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `sudoku_cell_bitmask` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `solve` in module `strategies::sole_candidate`
[INFO] [stdout]   --> src/main.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |         strategies::sole_candidate::solve(board, x, y);
[INFO] [stdout]    |                                     ^^^^^ not found in `strategies::sole_candidate`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 3  | use strategies::column_row_exclusion::solve;
[INFO] [stdout]    |
[INFO] [stdout] 3  | use strategies::unique_candidate::solve;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]   --> src/main.rs:31:44
[INFO] [stdout]    |
[INFO] [stdout] 31 |         strategies::sole_candidate::solve(board, x, y);
[INFO] [stdout]    |                                                  ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/main.rs:31:47
[INFO] [stdout]    |
[INFO] [stdout] 31 |         strategies::sole_candidate::solve(board, x, y);
[INFO] [stdout]    |                                                     ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/cell.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 1...9 => Contents::Value(candidates.value),
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/main.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn fill_board_from_file(filename: String) -> Result<Board, std::io::Error> {
[INFO] [stdout]    |                                                     ^^^^^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
[INFO] [stdout] help: consider using the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn fill_board_from_file(filename: String) -> Result<Board<'static>, std::io::Error> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0106, E0425, E0432, E0583.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d5d6495f0c74cbc305bac8f9ce6d017d7c039154ae76848166ec71b9fa317cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d6495f0c74cbc305bac8f9ce6d017d7c039154ae76848166ec71b9fa317cfa", kill_on_drop: false }`
[INFO] [stdout] d5d6495f0c74cbc305bac8f9ce6d017d7c039154ae76848166ec71b9fa317cfa
