[INFO] cloning repository https://github.com/cjvk/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/cjvk/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjvk%2Fsudoku_solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjvk%2Fsudoku_solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24d14f155d88d4b8cb62de9ef07224016915150e [INFO] testing cjvk/sudoku_solver against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjvk%2Fsudoku_solver" "/workspace/builds/worker-36/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cjvk/sudoku_solver on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cjvk/sudoku_solver [INFO] finished tweaking git repo https://github.com/cjvk/sudoku_solver [INFO] tweaked toml for git repo https://github.com/cjvk/sudoku_solver written to /workspace/builds/worker-36/source/Cargo.toml [INFO] crate git repo https://github.com/cjvk/sudoku_solver already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a5503924ca62193162a4042c43e6de0766578046e2aac1ea6bd54aa6df0a9967 [INFO] running `Command { std: "docker" "start" "-a" "a5503924ca62193162a4042c43e6de0766578046e2aac1ea6bd54aa6df0a9967", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a5503924ca62193162a4042c43e6de0766578046e2aac1ea6bd54aa6df0a9967", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5503924ca62193162a4042c43e6de0766578046e2aac1ea6bd54aa6df0a9967", kill_on_drop: false }` [INFO] [stdout] a5503924ca62193162a4042c43e6de0766578046e2aac1ea6bd54aa6df0a9967 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 63c87870a65748bc0280581e58e4017291a3d93c955c00e321f085959a03d6e2 [INFO] running `Command { std: "docker" "start" "-a" "63c87870a65748bc0280581e58e4017291a3d93c955c00e321f085959a03d6e2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/solver.rs:289:17 [INFO] [stdout] | [INFO] [stdout] 289 | 'inner: while !self.queue_item_list.is_empty() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 56.60s [INFO] running `Command { std: "docker" "inspect" "63c87870a65748bc0280581e58e4017291a3d93c955c00e321f085959a03d6e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63c87870a65748bc0280581e58e4017291a3d93c955c00e321f085959a03d6e2", kill_on_drop: false }` [INFO] [stdout] 63c87870a65748bc0280581e58e4017291a3d93c955c00e321f085959a03d6e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76d626b9b928baf17d395e57392c9e312366fe52d80b0a55e138c88b4c88b9d8 [INFO] running `Command { std: "docker" "start" "-a" "76d626b9b928baf17d395e57392c9e312366fe52d80b0a55e138c88b4c88b9d8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/solver.rs:289:17 [INFO] [stdout] | [INFO] [stdout] 289 | 'inner: while !self.queue_item_list.is_empty() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:687:18 [INFO] [stdout] | [INFO] [stdout] 687 | for i in (0..10) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 687 - for i in (0..10) { [INFO] [stdout] 687 + for i in 0..10 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:697:26 [INFO] [stdout] | [INFO] [stdout] 697 | 'outer: for i in (0..10) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 697 - 'outer: for i in (0..10) { [INFO] [stdout] 697 + 'outer: for i in 0..10 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/constraint.rs:698:13 [INFO] [stdout] | [INFO] [stdout] 698 | 'inner: for j in (0..10) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:698:30 [INFO] [stdout] | [INFO] [stdout] 698 | 'inner: for j in (0..10) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 698 - 'inner: for j in (0..10) { [INFO] [stdout] 698 + 'inner: for j in 0..10 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:977:26 [INFO] [stdout] | [INFO] [stdout] 977 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 977 - for i in (0..9) { [INFO] [stdout] 977 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:998:26 [INFO] [stdout] | [INFO] [stdout] 998 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 998 - for i in (0..9) { [INFO] [stdout] 998 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1019:26 [INFO] [stdout] | [INFO] [stdout] 1019 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1019 - for i in (0..9) { [INFO] [stdout] 1019 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1040:26 [INFO] [stdout] | [INFO] [stdout] 1040 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1040 - for i in (0..9) { [INFO] [stdout] 1040 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1061:26 [INFO] [stdout] | [INFO] [stdout] 1061 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1061 - for i in (0..9) { [INFO] [stdout] 1061 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1082:26 [INFO] [stdout] | [INFO] [stdout] 1082 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1082 - for i in (0..9) { [INFO] [stdout] 1082 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1103:26 [INFO] [stdout] | [INFO] [stdout] 1103 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1103 - for i in (0..9) { [INFO] [stdout] 1103 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1124:26 [INFO] [stdout] | [INFO] [stdout] 1124 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1124 - for i in (0..9) { [INFO] [stdout] 1124 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/constraint.rs:1145:26 [INFO] [stdout] | [INFO] [stdout] 1145 | for i in (0..9) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1145 - for i in (0..9) { [INFO] [stdout] 1145 + for i in 0..9 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/solver.rs:499:17 [INFO] [stdout] | [INFO] [stdout] 499 | let mut s = Solver::new(get_sample_puzzle(), get_ordering()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `puzzle` [INFO] [stdout] --> src/sudoku_puzzle.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | let puzzle = SudokuPuzzle::new(empty_puzzle()); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_puzzle` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/constraint.rs:696:17 [INFO] [stdout] | [INFO] [stdout] 696 | let mut b = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint1` [INFO] [stdout] --> src/constraint.rs:764:17 [INFO] [stdout] | [INFO] [stdout] 764 | let mut constraint1 = ProcessOfElimination:: new(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `constraint` [INFO] [stdout] --> src/constraint.rs:822:17 [INFO] [stdout] | [INFO] [stdout] 822 | let mut constraint = NoBoxDuplicates::new(); [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/constraint.rs:931:17 [INFO] [stdout] | [INFO] [stdout] 931 | let mut constraint = NoBoxDuplicates::new(); [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/constraint.rs:1200:17 [INFO] [stdout] | [INFO] [stdout] 1200 | let mut constraint = NoColumnDuplicates::new(); [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/constraint.rs:1274:17 [INFO] [stdout] | [INFO] [stdout] 1274 | let mut constraint = NoRowDuplicates::new(); [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/constraint.rs:1334:17 [INFO] [stdout] | [INFO] [stdout] 1334 | let mut constraint = NoRowDuplicates::new(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo1` [INFO] [stdout] --> src/test.rs:52:13 [INFO] [stdout] | [INFO] [stdout] 52 | let foo1 = Foo { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_foo1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo2` [INFO] [stdout] --> src/test.rs:59:13 [INFO] [stdout] | [INFO] [stdout] 59 | let foo2 = Foo { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_foo2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/test.rs:170:25 [INFO] [stdout] | [INFO] [stdout] 170 | fn do_stuff(s: String) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/test.rs:178:29 [INFO] [stdout] | [INFO] [stdout] 178 | fn do_stuff_ref(s: &String) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/test.rs:193:27 [INFO] [stdout] | [INFO] [stdout] 193 | fn do_stuff_x(x: Foo) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo5` [INFO] [stdout] --> src/test.rs:258:13 [INFO] [stdout] | [INFO] [stdout] 258 | let foo5 = InnerStringMutRef2{foo: &mut s5a, bar: &mut s5b}; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_foo5` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `remaining` [INFO] [stdout] --> src/squares.rs:341:17 [INFO] [stdout] | [INFO] [stdout] 341 | let remaining = s.values_remaining(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remaining` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:931:13 [INFO] [stdout] | [INFO] [stdout] 931 | let mut constraint = NoBoxDuplicates::new(); [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: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:499:13 [INFO] [stdout] | [INFO] [stdout] 499 | let mut s = Solver::new(get_sample_puzzle(), get_ordering()); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:696:13 [INFO] [stdout] | [INFO] [stdout] 696 | let mut b = false; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:764:13 [INFO] [stdout] | [INFO] [stdout] 764 | let mut constraint1 = ProcessOfElimination:: new(); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:822:13 [INFO] [stdout] | [INFO] [stdout] 822 | let mut constraint = NoBoxDuplicates::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:1200:13 [INFO] [stdout] | [INFO] [stdout] 1200 | let mut constraint = NoColumnDuplicates::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:1274:13 [INFO] [stdout] | [INFO] [stdout] 1274 | let mut constraint = NoRowDuplicates::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/constraint.rs:1334:13 [INFO] [stdout] | [INFO] [stdout] 1334 | let mut constraint = NoRowDuplicates::new(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/test.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | let mut x = 5; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_no_box_duplicates` [INFO] [stdout] --> src/constraint.rs:909:8 [INFO] [stdout] | [INFO] [stdout] 909 | fn test_no_box_duplicates() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `foo` [INFO] [stdout] --> src/test.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | foo: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `foo` [INFO] [stdout] --> src/test.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | foo: &'a String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `bar` [INFO] [stdout] --> src/test.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | bar: &'a String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `foo` [INFO] [stdout] --> src/test.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | foo: &'a mut String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `bar` [INFO] [stdout] --> src/test.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | bar: &'a mut String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `foo` [INFO] [stdout] --> src/test.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | foo: &'a mut String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `bar` [INFO] [stdout] --> src/test.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | bar: &'a mut String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/test.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/test.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `bar` [INFO] [stdout] --> src/test.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | bar: Bar, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_name` [INFO] [stdout] --> src/test.rs:45:16 [INFO] [stdout] | [INFO] [stdout] 45 | fn get_name(&self) -> &String { &self.name } [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_name` [INFO] [stdout] --> src/test.rs:46:16 [INFO] [stdout] | [INFO] [stdout] 46 | fn set_name(&mut self, name: String) -> () { self.name = name } [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_bar` [INFO] [stdout] --> src/test.rs:47:16 [INFO] [stdout] | [INFO] [stdout] 47 | fn get_bar(&self) -> &Bar { &self.bar } [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_bar` [INFO] [stdout] --> src/test.rs:48:16 [INFO] [stdout] | [INFO] [stdout] 48 | fn set_bar(&mut self, bar: Bar) -> () { self.bar = bar } [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:775:17 [INFO] [stdout] | [INFO] [stdout] 775 | constraint1.process(&QueueItem{row:*i, column:*j}, &mut puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:776:17 [INFO] [stdout] | [INFO] [stdout] 776 | constraint2.process(&QueueItem{row:*i, column:*j}, &mut puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:777:17 [INFO] [stdout] | [INFO] [stdout] 777 | constraint3.process(&QueueItem{row:*i, column:*j}, &mut puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:839:17 [INFO] [stdout] | [INFO] [stdout] 839 | constraint.process(&QueueItem{row:i, column:j}, &mut puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:861:21 [INFO] [stdout] | [INFO] [stdout] 861 | constraint.process(&QueueItem{row:i, column:j}, puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:944:17 [INFO] [stdout] | [INFO] [stdout] 944 | constraint.process(&QueueItem{row:i, column:j}, &mut puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:1210:29 [INFO] [stdout] | [INFO] [stdout] 1210 | .for_each(|r| { constraint.process(&QueueItem{row:r, column:1}, &mut puzzle); }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:1220:37 [INFO] [stdout] | [INFO] [stdout] 1220 | .for_each(|r| { constraint.process(&QueueItem{row:r, column:column}, &mut puzzle); }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:1284:29 [INFO] [stdout] | [INFO] [stdout] 1284 | .for_each(|c| { constraint.process(&QueueItem{row:1, column:c}, &mut puzzle); }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:1294:37 [INFO] [stdout] | [INFO] [stdout] 1294 | .for_each(|c| { constraint.process(&QueueItem{row:row, column:c}, &mut puzzle); }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/constraint.rs:1337:9 [INFO] [stdout] | [INFO] [stdout] 1337 | constraint.process(&QueueItem{row:1, column: 1}, &mut puzzle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 65 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.49s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_solver-ef4b3d649d444fcb) [INFO] running `Command { std: "docker" "inspect" "76d626b9b928baf17d395e57392c9e312366fe52d80b0a55e138c88b4c88b9d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76d626b9b928baf17d395e57392c9e312366fe52d80b0a55e138c88b4c88b9d8", kill_on_drop: false }` [INFO] [stdout] 76d626b9b928baf17d395e57392c9e312366fe52d80b0a55e138c88b4c88b9d8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2fa6158dd9f324d6e3f48fa9902d2a32e1735524bdc949638e6e7073fe69621b [INFO] running `Command { std: "docker" "start" "-a" "2fa6158dd9f324d6e3f48fa9902d2a32e1735524bdc949638e6e7073fe69621b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused label [INFO] [stderr] --> src/solver.rs:289:17 [INFO] [stderr] | [INFO] [stderr] 289 | 'inner: while !self.queue_item_list.is_empty() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_labels)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:687:18 [INFO] [stderr] | [INFO] [stderr] 687 | for i in (0..10) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 687 - for i in (0..10) { [INFO] [stderr] 687 + for i in 0..10 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:697:26 [INFO] [stderr] | [INFO] [stderr] 697 | 'outer: for i in (0..10) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 697 - 'outer: for i in (0..10) { [INFO] [stderr] 697 + 'outer: for i in 0..10 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused label [INFO] [stderr] --> src/constraint.rs:698:13 [INFO] [stderr] | [INFO] [stderr] 698 | 'inner: for j in (0..10) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:698:30 [INFO] [stderr] | [INFO] [stderr] 698 | 'inner: for j in (0..10) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 698 - 'inner: for j in (0..10) { [INFO] [stderr] 698 + 'inner: for j in 0..10 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:977:26 [INFO] [stderr] | [INFO] [stderr] 977 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 977 - for i in (0..9) { [INFO] [stderr] 977 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:998:26 [INFO] [stderr] | [INFO] [stderr] 998 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 998 - for i in (0..9) { [INFO] [stderr] 998 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1019:26 [INFO] [stderr] | [INFO] [stderr] 1019 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1019 - for i in (0..9) { [INFO] [stderr] 1019 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1040:26 [INFO] [stderr] | [INFO] [stderr] 1040 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1040 - for i in (0..9) { [INFO] [stderr] 1040 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1061:26 [INFO] [stderr] | [INFO] [stderr] 1061 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1061 - for i in (0..9) { [INFO] [stderr] 1061 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1082:26 [INFO] [stderr] | [INFO] [stderr] 1082 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1082 - for i in (0..9) { [INFO] [stderr] 1082 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1103:26 [INFO] [stderr] | [INFO] [stderr] 1103 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1103 - for i in (0..9) { [INFO] [stderr] 1103 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1124:26 [INFO] [stderr] | [INFO] [stderr] 1124 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1124 - for i in (0..9) { [INFO] [stderr] 1124 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/constraint.rs:1145:26 [INFO] [stderr] | [INFO] [stderr] 1145 | for i in (0..9) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 1145 - for i in (0..9) { [INFO] [stderr] 1145 + for i in 0..9 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/solver.rs:499:17 [INFO] [stderr] | [INFO] [stderr] 499 | let mut s = Solver::new(get_sample_puzzle(), get_ordering()); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `puzzle` [INFO] [stderr] --> src/sudoku_puzzle.rs:141:13 [INFO] [stderr] | [INFO] [stderr] 141 | let puzzle = SudokuPuzzle::new(empty_puzzle()); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_puzzle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/constraint.rs:696:17 [INFO] [stderr] | [INFO] [stderr] 696 | let mut b = false; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint1` [INFO] [stderr] --> src/constraint.rs:764:17 [INFO] [stderr] | [INFO] [stderr] 764 | let mut constraint1 = ProcessOfElimination:: new(); [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/constraint.rs:822:17 [INFO] [stderr] | [INFO] [stderr] 822 | let mut constraint = NoBoxDuplicates::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/constraint.rs:931:17 [INFO] [stderr] | [INFO] [stderr] 931 | let mut constraint = NoBoxDuplicates::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/constraint.rs:1200:17 [INFO] [stderr] | [INFO] [stderr] 1200 | let mut constraint = NoColumnDuplicates::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/constraint.rs:1274:17 [INFO] [stderr] | [INFO] [stderr] 1274 | let mut constraint = NoRowDuplicates::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `constraint` [INFO] [stderr] --> src/constraint.rs:1334:17 [INFO] [stderr] | [INFO] [stderr] 1334 | let mut constraint = NoRowDuplicates::new(); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constraint` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `foo1` [INFO] [stderr] --> src/test.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | let foo1 = Foo { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_foo1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `foo2` [INFO] [stderr] --> src/test.rs:59:13 [INFO] [stderr] | [INFO] [stderr] 59 | let foo2 = Foo { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_foo2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/test.rs:170:25 [INFO] [stderr] | [INFO] [stderr] 170 | fn do_stuff(s: String) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/test.rs:178:29 [INFO] [stderr] | [INFO] [stderr] 178 | fn do_stuff_ref(s: &String) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/test.rs:193:27 [INFO] [stderr] | [INFO] [stderr] 193 | fn do_stuff_x(x: Foo) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `foo5` [INFO] [stderr] --> src/test.rs:258:13 [INFO] [stderr] | [INFO] [stderr] 258 | let foo5 = InnerStringMutRef2{foo: &mut s5a, bar: &mut s5b}; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_foo5` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remaining` [INFO] [stderr] --> src/squares.rs:341:17 [INFO] [stderr] | [INFO] [stderr] 341 | let remaining = s.values_remaining(); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remaining` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:931:13 [INFO] [stderr] | [INFO] [stderr] 931 | let mut constraint = NoBoxDuplicates::new(); [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: variable does not need to be mutable [INFO] [stderr] --> src/solver.rs:499:13 [INFO] [stderr] | [INFO] [stderr] 499 | let mut s = Solver::new(get_sample_puzzle(), get_ordering()); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:696:13 [INFO] [stderr] | [INFO] [stderr] 696 | let mut b = false; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:764:13 [INFO] [stderr] | [INFO] [stderr] 764 | let mut constraint1 = ProcessOfElimination:: new(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:822:13 [INFO] [stderr] | [INFO] [stderr] 822 | let mut constraint = NoBoxDuplicates::new(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:1200:13 [INFO] [stderr] | [INFO] [stderr] 1200 | let mut constraint = NoColumnDuplicates::new(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:1274:13 [INFO] [stderr] | [INFO] [stderr] 1274 | let mut constraint = NoRowDuplicates::new(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/constraint.rs:1334:13 [INFO] [stderr] | [INFO] [stderr] 1334 | let mut constraint = NoRowDuplicates::new(); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/test.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | let mut x = 5; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_no_box_duplicates` [INFO] [stderr] --> src/constraint.rs:909:8 [INFO] [stderr] | [INFO] [stderr] 909 | fn test_no_box_duplicates() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `foo` [INFO] [stderr] --> src/test.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | foo: String, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `foo` [INFO] [stderr] --> src/test.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | foo: &'a String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `bar` [INFO] [stderr] --> src/test.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | bar: &'a String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `foo` [INFO] [stderr] --> src/test.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | foo: &'a mut String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `bar` [INFO] [stderr] --> src/test.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | bar: &'a mut String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `foo` [INFO] [stderr] --> src/test.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | foo: &'a mut String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `bar` [INFO] [stderr] --> src/test.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | bar: &'a mut String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/test.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | name: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/test.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | name: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `bar` [INFO] [stderr] --> src/test.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | bar: Bar, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_name` [INFO] [stderr] --> src/test.rs:45:16 [INFO] [stderr] | [INFO] [stderr] 45 | fn get_name(&self) -> &String { &self.name } [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_name` [INFO] [stderr] --> src/test.rs:46:16 [INFO] [stderr] | [INFO] [stderr] 46 | fn set_name(&mut self, name: String) -> () { self.name = name } [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_bar` [INFO] [stderr] --> src/test.rs:47:16 [INFO] [stderr] | [INFO] [stderr] 47 | fn get_bar(&self) -> &Bar { &self.bar } [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_bar` [INFO] [stderr] --> src/test.rs:48:16 [INFO] [stderr] | [INFO] [stderr] 48 | fn set_bar(&mut self, bar: Bar) -> () { self.bar = bar } [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:775:17 [INFO] [stderr] | [INFO] [stderr] 775 | constraint1.process(&QueueItem{row:*i, column:*j}, &mut puzzle); [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] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:776:17 [INFO] [stderr] | [INFO] [stderr] 776 | constraint2.process(&QueueItem{row:*i, column:*j}, &mut puzzle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:777:17 [INFO] [stderr] | [INFO] [stderr] 777 | constraint3.process(&QueueItem{row:*i, column:*j}, &mut puzzle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:839:17 [INFO] [stderr] | [INFO] [stderr] 839 | constraint.process(&QueueItem{row:i, column:j}, &mut puzzle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:861:21 [INFO] [stderr] | [INFO] [stderr] 861 | constraint.process(&QueueItem{row:i, column:j}, puzzle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:944:17 [INFO] [stderr] | [INFO] [stderr] 944 | constraint.process(&QueueItem{row:i, column:j}, &mut puzzle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:1210:29 [INFO] [stderr] | [INFO] [stderr] 1210 | .for_each(|r| { constraint.process(&QueueItem{row:r, column:1}, &mut puzzle); }); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:1220:37 [INFO] [stderr] | [INFO] [stderr] 1220 | .for_each(|r| { constraint.process(&QueueItem{row:r, column:column}, &mut puzzle); }); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:1284:29 [INFO] [stderr] | [INFO] [stderr] 1284 | .for_each(|c| { constraint.process(&QueueItem{row:1, column:c}, &mut puzzle); }); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:1294:37 [INFO] [stderr] | [INFO] [stderr] 1294 | .for_each(|c| { constraint.process(&QueueItem{row:row, column:c}, &mut puzzle); }); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/constraint.rs:1337:9 [INFO] [stderr] | [INFO] [stderr] 1337 | constraint.process(&QueueItem{row:1, column: 1}, &mut puzzle); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `sudoku_solver` (bin "sudoku_solver" test) generated 65 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.65s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_solver-ef4b3d649d444fcb) [INFO] [stdout] [INFO] [stdout] running 56 tests [INFO] [stdout] test constraint::tests::always_pass ... ok [INFO] [stdout] test constraint::tests::box_index_to_box ... ok [INFO] [stdout] test constraint::tests::box_iterators ... ok [INFO] [stdout] test constraint::tests::box_vectors ... ok [INFO] [stdout] test constraint::tests::test_break_loop ... ok [INFO] [stdout] test constraint::tests::puzzle_does_not_throw_exception ... ok [INFO] [stdout] test constraint::tests::puzzle_almost_solved_no_row_duplicates ... ok [INFO] [stdout] test constraint::tests::puzzle_almost_solved_no_column_duplicates ... ok [INFO] [stdout] test guess_ordering::tests::always_pass ... ok [INFO] [stdout] test constraint::tests::test_try_fold ... ok [INFO] [stdout] test constraint::tests::test_process_of_elimination ... ok [INFO] [stdout] test constraint::tests::test_no_box_duplicates2 ... ok [INFO] [stdout] test sample_puzzles::tests::always_pass ... ok [INFO] [stdout] test solver::tests::always_pass ... ok [INFO] [stdout] test guess_ordering::tests::test_randomize_values ... ok [INFO] [stdout] test sample_puzzles::tests::test_map ... ok [INFO] [stdout] test solver::tests::test_progress ... ok [INFO] [stdout] test squares::tests::always_pass ... ok [INFO] [stdout] test solver::tests::create_solver ... ok [INFO] [stdout] test squares::tests::derived_square::bitmap_elimination ... ok [INFO] [stdout] test solver::tests::test_vectors ... ok [INFO] [stdout] test solver::tests::create_solver2 ... ok [INFO] [stdout] test squares::tests::derived_square::count_remaining ... ok [INFO] [stdout] test squares::tests::derived_square::clean ... ok [INFO] [stdout] test squares::tests::derived_square::eliminate ... ok [INFO] [stdout] test squares::tests::derived_square::get_single_value ... ok [INFO] [stdout] test squares::tests::derived_square::eliminate_list ... ok [INFO] [stdout] test squares::tests::derived_square::has_single_value ... ok [INFO] [stdout] test squares::tests::derived_square::is_dirty ... ok [INFO] [stdout] test squares::tests::derived_square::is_possible ... ok [INFO] [stdout] test squares::tests::derived_square::select ... ok [INFO] [stdout] test squares::tests::derived_square::get_bitmap ... ok [INFO] [stdout] test squares::tests::initial_square::bitmap_elimination ... ok [INFO] [stdout] test squares::tests::derived_square::values_remaining ... ok [INFO] [stdout] test squares::tests::initial_square::clean ... ok [INFO] [stdout] test squares::tests::initial_square::count_remaining ... ok [INFO] [stdout] test squares::tests::initial_square::eliminate ... ok [INFO] [stdout] test squares::tests::initial_square::eliminate_list ... ok [INFO] [stdout] test squares::tests::initial_square::get_bitmap ... ok [INFO] [stdout] test squares::tests::initial_square::has_single_value ... ok [INFO] [stdout] test squares::tests::initial_square::get_single_value ... ok [INFO] [stdout] test squares::tests::initial_square::is_dirty ... ok [INFO] [stdout] test squares::tests::initial_square::is_possible ... ok [INFO] [stdout] test squares::tests::initial_square::new ... ok [INFO] [stdout] test squares::tests::initial_square::select ... ok [INFO] [stdout] test squares::tests::initial_square::values_remaining ... ok [INFO] [stdout] test sudoku_puzzle::tests::always_pass ... ok [INFO] [stdout] test sudoku_puzzle::tests::clone ... ok [INFO] [stdout] test sudoku_puzzle::tests::create ... ok [INFO] [stdout] test test::tests::always_pass ... ok [INFO] [stdout] test squares::tests::initial_square::new_toolow - should panic ... ok [INFO] [stdout] test test::tests::contains_testing ... ok [INFO] [stdout] test test::tests::nested1 ... ok [INFO] [stdout] test squares::tests::initial_square::new_toohigh - should panic ... ok [INFO] [stdout] test test::tests::rust_ownership ... ok [INFO] [stdout] test squares::tests::derived_square::get_single_value_panic - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 56 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2fa6158dd9f324d6e3f48fa9902d2a32e1735524bdc949638e6e7073fe69621b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2fa6158dd9f324d6e3f48fa9902d2a32e1735524bdc949638e6e7073fe69621b", kill_on_drop: false }` [INFO] [stdout] 2fa6158dd9f324d6e3f48fa9902d2a32e1735524bdc949638e6e7073fe69621b