[INFO] cloning repository https://github.com/bbush915/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/bbush915/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbush915%2Fsudoku-solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbush915%2Fsudoku-solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a5a27e3b824507460a729ef37bf0b7c63836f973 [INFO] testing bbush915/sudoku-solver against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbush915%2Fsudoku-solver" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bbush915/sudoku-solver on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bbush915/sudoku-solver [INFO] finished tweaking git repo https://github.com/bbush915/sudoku-solver [INFO] tweaked toml for git repo https://github.com/bbush915/sudoku-solver written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/bbush915/sudoku-solver already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 852a7cd89396e8d7f5ddf281a7da02e6b6e593699137bb23ff6e1604b568682d [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" "852a7cd89396e8d7f5ddf281a7da02e6b6e593699137bb23ff6e1604b568682d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "852a7cd89396e8d7f5ddf281a7da02e6b6e593699137bb23ff6e1604b568682d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "852a7cd89396e8d7f5ddf281a7da02e6b6e593699137bb23ff6e1604b568682d", kill_on_drop: false }` [INFO] [stdout] 852a7cd89396e8d7f5ddf281a7da02e6b6e593699137bb23ff6e1604b568682d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 65ef81e95d1a9db2035b9cebd05e826592504b0fee81a19d53736001468673f8 [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" "65ef81e95d1a9db2035b9cebd05e826592504b0fee81a19d53736001468673f8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling ppv-lite86 v0.2.9 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling sudoku-solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct is never constructed: `Step` [INFO] [stdout] --> src/main.rs:108:10 [INFO] [stdout] | [INFO] [stdout] 108 | struct Step { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve` [INFO] [stdout] --> src/main.rs:113:10 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn solve( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `generate_step` [INFO] [stdout] --> src/main.rs:199:6 [INFO] [stdout] | [INFO] [stdout] 199 | fn generate_step(grid: &utils::Cells, index: usize, initial_value: u8) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.06s [INFO] running `Command { std: "docker" "inspect" "65ef81e95d1a9db2035b9cebd05e826592504b0fee81a19d53736001468673f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65ef81e95d1a9db2035b9cebd05e826592504b0fee81a19d53736001468673f8", kill_on_drop: false }` [INFO] [stdout] 65ef81e95d1a9db2035b9cebd05e826592504b0fee81a19d53736001468673f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 942354b99bf05c130a030f1f2ea13b52063a49faa8e52377a2723646565527a7 [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" "942354b99bf05c130a030f1f2ea13b52063a49faa8e52377a2723646565527a7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling sudoku-solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct is never constructed: `Step` [INFO] [stdout] --> src/main.rs:108:10 [INFO] [stdout] | [INFO] [stdout] 108 | struct Step { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve` [INFO] [stdout] --> src/main.rs:113:10 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn solve( [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `generate_step` [INFO] [stdout] --> src/main.rs:199:6 [INFO] [stdout] | [INFO] [stdout] 199 | fn generate_step(grid: &utils::Cells, index: usize, initial_value: u8) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.95s [INFO] running `Command { std: "docker" "inspect" "942354b99bf05c130a030f1f2ea13b52063a49faa8e52377a2723646565527a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "942354b99bf05c130a030f1f2ea13b52063a49faa8e52377a2723646565527a7", kill_on_drop: false }` [INFO] [stdout] 942354b99bf05c130a030f1f2ea13b52063a49faa8e52377a2723646565527a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 177ef3589d385e9a2da610b50bbe5c7958a5469405d53bc8b2d7ebf583c3e6e2 [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" "177ef3589d385e9a2da610b50bbe5c7958a5469405d53bc8b2d7ebf583c3e6e2", kill_on_drop: false }` [INFO] [stderr] warning: struct is never constructed: `Step` [INFO] [stderr] --> src/main.rs:108:10 [INFO] [stderr] | [INFO] [stderr] 108 | struct Step { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve` [INFO] [stderr] --> src/main.rs:113:10 [INFO] [stderr] | [INFO] [stderr] 113 | pub fn solve( [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `generate_step` [INFO] [stderr] --> src/main.rs:199:6 [INFO] [stderr] | [INFO] [stderr] 199 | fn generate_step(grid: &utils::Cells, index: usize, initial_value: u8) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/sudoku_solver-f9de2dc99e2d30b0 [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 `Command { std: "docker" "inspect" "177ef3589d385e9a2da610b50bbe5c7958a5469405d53bc8b2d7ebf583c3e6e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "177ef3589d385e9a2da610b50bbe5c7958a5469405d53bc8b2d7ebf583c3e6e2", kill_on_drop: false }` [INFO] [stdout] 177ef3589d385e9a2da610b50bbe5c7958a5469405d53bc8b2d7ebf583c3e6e2