[INFO] cloning repository https://github.com/EthanTheMaster/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/EthanTheMaster/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanTheMaster%2Fsudoku_solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanTheMaster%2Fsudoku_solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f0d269d3d954a9b6c82d6d0856dd0175544949f6 [INFO] testing EthanTheMaster/sudoku_solver against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanTheMaster%2Fsudoku_solver" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/EthanTheMaster/sudoku_solver on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/EthanTheMaster/sudoku_solver [INFO] finished tweaking git repo https://github.com/EthanTheMaster/sudoku_solver [INFO] tweaked toml for git repo https://github.com/EthanTheMaster/sudoku_solver written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/EthanTheMaster/sudoku_solver already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 52ac9cc3a950b6ce58bb6c7594d95c42be37edbd3fc25a97564ce90948064930 [INFO] running `Command { std: "docker" "start" "-a" "52ac9cc3a950b6ce58bb6c7594d95c42be37edbd3fc25a97564ce90948064930", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52ac9cc3a950b6ce58bb6c7594d95c42be37edbd3fc25a97564ce90948064930", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52ac9cc3a950b6ce58bb6c7594d95c42be37edbd3fc25a97564ce90948064930", kill_on_drop: false }` [INFO] [stdout] 52ac9cc3a950b6ce58bb6c7594d95c42be37edbd3fc25a97564ce90948064930 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a10cd2614c6b07d92923c9b3105788398544c3af15a082c6ccc4305885ece74 [INFO] running `Command { std: "docker" "start" "-a" "2a10cd2614c6b07d92923c9b3105788398544c3af15a082c6ccc4305885ece74", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `operation` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:96:32 [INFO] [stdout] | [INFO] [stdout] 96 | if let NodeType::Field(operation, column_header_id) = node_type { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:100:48 [INFO] [stdout] | [INFO] [stdout] 100 | NodeType::ColumnHeader(ref mut constraint, ref mut size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `operation` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:119:29 [INFO] [stdout] | [INFO] [stdout] 119 | NodeType::Field(operation, column_header_id) => { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:127:36 [INFO] [stdout] | [INFO] [stdout] 127 | NodeType::ColumnHeader(constraint, size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:226:44 [INFO] [stdout] | [INFO] [stdout] 226 | NodeType::ColumnHeader(constraint, ref mut size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:269:44 [INFO] [stdout] | [INFO] [stdout] 269 | NodeType::ColumnHeader(constraint, ref mut size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `idx` [INFO] [stdout] --> src/sudoku_solver_backtrack/mod.rs:35:24 [INFO] [stdout] | [INFO] [stdout] 35 | .filter(|&(idx, val)| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `val` [INFO] [stdout] --> src/sudoku_solver_backtrack/mod.rs:37:27 [INFO] [stdout] | [INFO] [stdout] 37 | }).map(|(idx, val)| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/sudoku_solver_backtrack/mod.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let mut blank_positions: Vec = self.board.iter().enumerate() [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.38s [INFO] running `Command { std: "docker" "inspect" "2a10cd2614c6b07d92923c9b3105788398544c3af15a082c6ccc4305885ece74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a10cd2614c6b07d92923c9b3105788398544c3af15a082c6ccc4305885ece74", kill_on_drop: false }` [INFO] [stdout] 2a10cd2614c6b07d92923c9b3105788398544c3af15a082c6ccc4305885ece74 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b1f50f5cb4f7b44eab1e05fec2d82eca31d274313913e1383cdf03be85cefb6 [INFO] running `Command { std: "docker" "start" "-a" "4b1f50f5cb4f7b44eab1e05fec2d82eca31d274313913e1383cdf03be85cefb6", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `operation` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:96:32 [INFO] [stdout] | [INFO] [stdout] 96 | if let NodeType::Field(operation, column_header_id) = node_type { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:100:48 [INFO] [stdout] | [INFO] [stdout] 100 | NodeType::ColumnHeader(ref mut constraint, ref mut size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `operation` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:119:29 [INFO] [stdout] | [INFO] [stdout] 119 | NodeType::Field(operation, column_header_id) => { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:127:36 [INFO] [stdout] | [INFO] [stdout] 127 | NodeType::ColumnHeader(constraint, size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:226:44 [INFO] [stdout] | [INFO] [stdout] 226 | NodeType::ColumnHeader(constraint, ref mut size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/sudoku_solver_dancinglinks/mod.rs:269:44 [INFO] [stdout] | [INFO] [stdout] 269 | NodeType::ColumnHeader(constraint, ref mut size) => { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `idx` [INFO] [stdout] --> src/sudoku_solver_backtrack/mod.rs:35:24 [INFO] [stdout] | [INFO] [stdout] 35 | .filter(|&(idx, val)| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `val` [INFO] [stdout] --> src/sudoku_solver_backtrack/mod.rs:37:27 [INFO] [stdout] | [INFO] [stdout] 37 | }).map(|(idx, val)| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/sudoku_solver_backtrack/mod.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let mut blank_positions: Vec = self.board.iter().enumerate() [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "4b1f50f5cb4f7b44eab1e05fec2d82eca31d274313913e1383cdf03be85cefb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b1f50f5cb4f7b44eab1e05fec2d82eca31d274313913e1383cdf03be85cefb6", kill_on_drop: false }` [INFO] [stdout] 4b1f50f5cb4f7b44eab1e05fec2d82eca31d274313913e1383cdf03be85cefb6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1e343b5faf03644a206b150a7da9b4a13f12071f63760e19f290e63438067a23 [INFO] running `Command { std: "docker" "start" "-a" "1e343b5faf03644a206b150a7da9b4a13f12071f63760e19f290e63438067a23", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `operation` [INFO] [stderr] --> src/sudoku_solver_dancinglinks/mod.rs:96:32 [INFO] [stderr] | [INFO] [stderr] 96 | if let NodeType::Field(operation, column_header_id) = node_type { [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/sudoku_solver_dancinglinks/mod.rs:100:48 [INFO] [stderr] | [INFO] [stderr] 100 | NodeType::ColumnHeader(ref mut constraint, ref mut size) => { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `operation` [INFO] [stderr] --> src/sudoku_solver_dancinglinks/mod.rs:119:29 [INFO] [stderr] | [INFO] [stderr] 119 | NodeType::Field(operation, column_header_id) => { [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/sudoku_solver_dancinglinks/mod.rs:127:36 [INFO] [stderr] | [INFO] [stderr] 127 | NodeType::ColumnHeader(constraint, size) => { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/sudoku_solver_dancinglinks/mod.rs:226:44 [INFO] [stderr] | [INFO] [stderr] 226 | NodeType::ColumnHeader(constraint, ref mut size) => { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/sudoku_solver_dancinglinks/mod.rs:269:44 [INFO] [stderr] | [INFO] [stderr] 269 | NodeType::ColumnHeader(constraint, ref mut size) => { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/sudoku_solver_backtrack/mod.rs:35:24 [INFO] [stderr] | [INFO] [stderr] 35 | .filter(|&(idx, val)| { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/sudoku_solver_backtrack/mod.rs:37:27 [INFO] [stderr] | [INFO] [stderr] 37 | }).map(|(idx, val)| { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/sudoku_solver_backtrack/mod.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut blank_positions: Vec = self.board.iter().enumerate() [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: `sudoku_solver` (bin "sudoku_solver" test) generated 9 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/sudoku_solver-1d6786f78e1203f1) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1e343b5faf03644a206b150a7da9b4a13f12071f63760e19f290e63438067a23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e343b5faf03644a206b150a7da9b4a13f12071f63760e19f290e63438067a23", kill_on_drop: false }` [INFO] [stdout] 1e343b5faf03644a206b150a7da9b4a13f12071f63760e19f290e63438067a23