[INFO] cloning repository https://github.com/ruggeri/sudoku_solver [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruggeri/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruggeri%2Fsudoku_solver"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruggeri%2Fsudoku_solver'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d6f77304a6366925acd849c5f564446cb7245b76 [INFO] testing ruggeri/sudoku_solver against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruggeri%2Fsudoku_solver" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ruggeri/sudoku_solver on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ruggeri/sudoku_solver [INFO] finished tweaking git repo https://github.com/ruggeri/sudoku_solver [INFO] tweaked toml for git repo https://github.com/ruggeri/sudoku_solver written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/ruggeri/sudoku_solver already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a6dd99a59275ee80ad6f842622ec229a929eca739cee4bfc29aa8a018b56371f [INFO] running `"docker" "start" "-a" "a6dd99a59275ee80ad6f842622ec229a929eca739cee4bfc29aa8a018b56371f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rand_core v0.3.0 [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.0 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Compiling rand_xorshift v0.1.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling sudoku_solving v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:68:11 [INFO] [stderr] | [INFO] [stderr] 68 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:128:11 [INFO] [stderr] | [INFO] [stderr] 128 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:177:11 [INFO] [stderr] | [INFO] [stderr] 177 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/group_checker.rs:42:11 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `needless_bool` [INFO] [stderr] --> src/checker/group_checker.rs:42:30 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/checker/grid_checker.rs:27:52 [INFO] [stderr] | [INFO] [stderr] 27 | ... SUDOKU_DIM_USIZE] = mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SudokuChoice`, `SudokuPosition`, `SudokuValue` [INFO] [stderr] --> src/main.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | core::{SudokuChoice, SudokuGrid, SudokuPosition, SudokuValue}, [INFO] [stderr] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.39s [INFO] running `"docker" "inspect" "a6dd99a59275ee80ad6f842622ec229a929eca739cee4bfc29aa8a018b56371f"` [INFO] running `"docker" "rm" "-f" "a6dd99a59275ee80ad6f842622ec229a929eca739cee4bfc29aa8a018b56371f"` [INFO] [stdout] a6dd99a59275ee80ad6f842622ec229a929eca739cee4bfc29aa8a018b56371f [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 5c6c6bee4fb27be6b2841be78666a7308b7c89cbeeb4567ed152ca74c659b472 [INFO] running `"docker" "start" "-a" "5c6c6bee4fb27be6b2841be78666a7308b7c89cbeeb4567ed152ca74c659b472"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:68:11 [INFO] [stderr] | [INFO] [stderr] 68 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:128:11 [INFO] [stderr] | [INFO] [stderr] 128 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:177:11 [INFO] [stderr] | [INFO] [stderr] 177 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/group_checker.rs:42:11 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `needless_bool` [INFO] [stderr] --> src/checker/group_checker.rs:42:30 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/checker/grid_checker.rs:27:52 [INFO] [stderr] | [INFO] [stderr] 27 | ... SUDOKU_DIM_USIZE] = mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Compiling sudoku_solving v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:68:11 [INFO] [stderr] | [INFO] [stderr] 68 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:128:11 [INFO] [stderr] | [INFO] [stderr] 128 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:177:11 [INFO] [stderr] | [INFO] [stderr] 177 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/group_checker.rs:42:11 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `needless_bool` [INFO] [stderr] --> src/checker/group_checker.rs:42:30 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SudokuChoice`, `SudokuPosition`, `SudokuValue` [INFO] [stderr] --> src/main.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | core::{SudokuChoice, SudokuGrid, SudokuPosition, SudokuValue}, [INFO] [stderr] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/checker/grid_checker.rs:27:52 [INFO] [stderr] | [INFO] [stderr] 27 | ... SUDOKU_DIM_USIZE] = mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.85s [INFO] running `"docker" "inspect" "5c6c6bee4fb27be6b2841be78666a7308b7c89cbeeb4567ed152ca74c659b472"` [INFO] running `"docker" "rm" "-f" "5c6c6bee4fb27be6b2841be78666a7308b7c89cbeeb4567ed152ca74c659b472"` [INFO] [stdout] 5c6c6bee4fb27be6b2841be78666a7308b7c89cbeeb4567ed152ca74c659b472 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d9e6a2a2f9cbc055b0dd06220c68c5e19f73d34ab227aede3f5c2cbda45e2ed4 [INFO] running `"docker" "start" "-a" "d9e6a2a2f9cbc055b0dd06220c68c5e19f73d34ab227aede3f5c2cbda45e2ed4"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:68:11 [INFO] [stderr] | [INFO] [stderr] 68 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:128:11 [INFO] [stderr] | [INFO] [stderr] 128 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:177:11 [INFO] [stderr] | [INFO] [stderr] 177 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/group_checker.rs:42:11 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `needless_bool` [INFO] [stderr] --> src/checker/group_checker.rs:42:30 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/checker/grid_checker.rs:27:52 [INFO] [stderr] | [INFO] [stderr] 27 | ... SUDOKU_DIM_USIZE] = mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:68:11 [INFO] [stderr] | [INFO] [stderr] 68 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unknown_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:128:11 [INFO] [stderr] | [INFO] [stderr] 128 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/grid_checker.rs:177:11 [INFO] [stderr] | [INFO] [stderr] 177 | #[allow(if_same_then_else)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `if_same_then_else` [INFO] [stderr] --> src/checker/group_checker.rs:42:11 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unknown lint: `needless_bool` [INFO] [stderr] --> src/checker/group_checker.rs:42:30 [INFO] [stderr] | [INFO] [stderr] 42 | #[allow(if_same_then_else, needless_bool)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead [INFO] [stderr] --> src/checker/grid_checker.rs:27:52 [INFO] [stderr] | [INFO] [stderr] 27 | ... SUDOKU_DIM_USIZE] = mem::uninitialized(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `SudokuChoice`, `SudokuPosition`, `SudokuValue` [INFO] [stderr] --> src/main.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | core::{SudokuChoice, SudokuGrid, SudokuPosition, SudokuValue}, [INFO] [stderr] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/sudoku_solving-0f065a6c948072ef [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/sudoku_solving-9e4c925390db155b [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] [stdout] [INFO] [stderr] Doc-tests sudoku_solving [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] [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" "d9e6a2a2f9cbc055b0dd06220c68c5e19f73d34ab227aede3f5c2cbda45e2ed4"` [INFO] running `"docker" "rm" "-f" "d9e6a2a2f9cbc055b0dd06220c68c5e19f73d34ab227aede3f5c2cbda45e2ed4"` [INFO] [stdout] d9e6a2a2f9cbc055b0dd06220c68c5e19f73d34ab227aede3f5c2cbda45e2ed4