[INFO] updating cached repository https://github.com/m-squared96/sudoku-solver [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4360ead5e4fef6703cf47734ccd01c25220c75a1 [INFO] testing m-squared96/sudoku-solver against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-squared96%2Fsudoku-solver" "work/builds/worker-7/source"` [INFO] [stderr] Cloning into 'work/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/m-squared96/sudoku-solver on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/m-squared96/sudoku-solver [INFO] finished tweaking git repo https://github.com/m-squared96/sudoku-solver [INFO] tweaked toml for git repo https://github.com/m-squared96/sudoku-solver written to work/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/m-squared96/sudoku-solver already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] e7707ed2baaf9165a3501b428f874f2681bc8a5ecf798e2c69d09e8ea0ca2f5d [INFO] running `"docker" "start" "-a" "e7707ed2baaf9165a3501b428f874f2681bc8a5ecf798e2c69d09e8ea0ca2f5d"` [INFO] [stderr] Compiling sudoku_solver_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: value assigned to `filepath` is never read [INFO] [stderr] --> src/main.rs:377:13 [INFO] [stderr] | [INFO] [stderr] 377 | let mut filepath: Option = Some(String::new()); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `command_flag` is never read [INFO] [stderr] --> src/main.rs:535:13 [INFO] [stderr] | [INFO] [stderr] 535 | let mut command_flag = String::new(); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `board` is never read [INFO] [stderr] --> src/main.rs:544:13 [INFO] [stderr] | [INFO] [stderr] 544 | let mut board: Option>> = Some(Vec::new()); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:464:9 [INFO] [stderr] | [INFO] [stderr] 464 | let mut output_file = fs::File::create(filepath.as_str()).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `output_puzzle` [INFO] [stderr] --> src/main.rs:449:1 [INFO] [stderr] | [INFO] [stderr] 449 | fn output_puzzle(args: Vec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:475:9 [INFO] [stderr] | [INFO] [stderr] 475 | write!(&mut writer, "{}", line_string); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.28s [INFO] running `"docker" "inspect" "e7707ed2baaf9165a3501b428f874f2681bc8a5ecf798e2c69d09e8ea0ca2f5d"` [INFO] running `"docker" "rm" "-f" "e7707ed2baaf9165a3501b428f874f2681bc8a5ecf798e2c69d09e8ea0ca2f5d"` [INFO] [stdout] e7707ed2baaf9165a3501b428f874f2681bc8a5ecf798e2c69d09e8ea0ca2f5d [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"` [INFO] [stdout] 2a0d17540f970f2da65152a151b1d1e7bc212f83628ef6c1134a02910c2110d9 [INFO] running `"docker" "start" "-a" "2a0d17540f970f2da65152a151b1d1e7bc212f83628ef6c1134a02910c2110d9"` [INFO] [stderr] Compiling sudoku_solver_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: value assigned to `filepath` is never read [INFO] [stderr] --> src/main.rs:377:13 [INFO] [stderr] | [INFO] [stderr] 377 | let mut filepath: Option = Some(String::new()); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `command_flag` is never read [INFO] [stderr] --> src/main.rs:535:13 [INFO] [stderr] | [INFO] [stderr] 535 | let mut command_flag = String::new(); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `board` is never read [INFO] [stderr] --> src/main.rs:544:13 [INFO] [stderr] | [INFO] [stderr] 544 | let mut board: Option>> = Some(Vec::new()); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:464:9 [INFO] [stderr] | [INFO] [stderr] 464 | let mut output_file = fs::File::create(filepath.as_str()).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `output_puzzle` [INFO] [stderr] --> src/main.rs:449:1 [INFO] [stderr] | [INFO] [stderr] 449 | fn output_puzzle(args: Vec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:475:9 [INFO] [stderr] | [INFO] [stderr] 475 | write!(&mut writer, "{}", line_string); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `"docker" "inspect" "2a0d17540f970f2da65152a151b1d1e7bc212f83628ef6c1134a02910c2110d9"` [INFO] running `"docker" "rm" "-f" "2a0d17540f970f2da65152a151b1d1e7bc212f83628ef6c1134a02910c2110d9"` [INFO] [stdout] 2a0d17540f970f2da65152a151b1d1e7bc212f83628ef6c1134a02910c2110d9 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"` [INFO] [stdout] b1f78d1a35a576a2967b4059ce707f123f0d383e57dae938780353ff197dc802 [INFO] running `"docker" "start" "-a" "b1f78d1a35a576a2967b4059ce707f123f0d383e57dae938780353ff197dc802"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/sudoku_solver_rust-0590b06fa5924ee8 [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "b1f78d1a35a576a2967b4059ce707f123f0d383e57dae938780353ff197dc802"` [INFO] running `"docker" "rm" "-f" "b1f78d1a35a576a2967b4059ce707f123f0d383e57dae938780353ff197dc802"` [INFO] [stdout] b1f78d1a35a576a2967b4059ce707f123f0d383e57dae938780353ff197dc802