[INFO] fetching crate hudoku 0.0.1... [INFO] checking hudoku-0.0.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate hudoku 0.0.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate hudoku 0.0.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate hudoku 0.0.1 [INFO] finished tweaking crates.io crate hudoku 0.0.1 [INFO] tweaked toml for crates.io crate hudoku 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 93 packages to latest compatible versions [INFO] [stderr] Adding anes v0.1.6 (available: v0.2.0) [INFO] [stderr] Adding cfg-if v0.1.10 (available: v1.0.0) [INFO] [stderr] Adding itertools v0.10.5 (available: v0.13.0) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a9ab47b3b76b648be6bf1d587ce5c1af1b377d4444dd31ba666b83fa22638a4a [INFO] running `Command { std: "docker" "start" "-a" "a9ab47b3b76b648be6bf1d587ce5c1af1b377d4444dd31ba666b83fa22638a4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a9ab47b3b76b648be6bf1d587ce5c1af1b377d4444dd31ba666b83fa22638a4a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9ab47b3b76b648be6bf1d587ce5c1af1b377d4444dd31ba666b83fa22638a4a", kill_on_drop: false }` [INFO] [stdout] a9ab47b3b76b648be6bf1d587ce5c1af1b377d4444dd31ba666b83fa22638a4a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1c49bf134064c846157748f8f3c5083ce3bb070499e34274074137d093c4baea [INFO] running `Command { std: "docker" "start" "-a" "1c49bf134064c846157748f8f3c5083ce3bb070499e34274074137d093c4baea", kill_on_drop: false }` [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.93 [INFO] [stderr] Compiling bumpalo v3.16.0 [INFO] [stderr] Compiling wasm-bindgen v0.2.93 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stderr] Checking half v2.4.1 [INFO] [stderr] Checking clap_lex v0.7.2 [INFO] [stderr] Checking anstyle v1.0.8 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking winnow v0.6.20 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Checking clap_builder v4.5.18 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.93 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Compiling wasm-bindgen-test-macro v0.3.43 [INFO] [stderr] Checking arrayvec v0.7.6 [INFO] [stderr] Checking scoped-tls v1.0.1 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking plotters v0.3.7 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.93 [INFO] [stderr] Checking clap v4.5.18 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.93 [INFO] [stderr] Checking serde v1.0.210 [INFO] [stderr] Checking console_error_panic_hook v0.1.7 [INFO] [stderr] Checking js-sys v0.3.70 [INFO] [stderr] Checking hudoku v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `comb` [INFO] [stdout] --> src/solver/single_digit_patterns/rectangle_elimination.rs:3:20 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::utils::{comb, NamedCellSet}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pos` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:44:34 [INFO] [stdout] | [INFO] [stdout] 44 | let ref mut on_unselected = |pos: usize, element: usize| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pos` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pos` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:82:38 [INFO] [stdout] | [INFO] [stdout] 82 | let ref mut on_unselected = |pos: usize, element: usize| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pos` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `element` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:82:50 [INFO] [stdout] | [INFO] [stdout] 82 | let ref mut on_unselected = |pos: usize, element: usize| { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cols` [INFO] [stdout] --> src/solver/single_digit_patterns/rectangle_elimination.rs:90:5 [INFO] [stdout] | [INFO] [stdout] 90 | cols: &[NamedCellSet], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cols` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `skip_unselected` is never read [INFO] [stdout] --> src/utils/combination_generator.rs:100:17 [INFO] [stdout] | [INFO] [stdout] 100 | skip_unselected = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `candidate_cells_in_blocks` is never used [INFO] [stdout] --> src/solver.rs:153:19 [INFO] [stdout] | [INFO] [stdout] 43 | impl SudokuSolver { [INFO] [stdout] | ----------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 153 | pub(crate) fn candidate_cells_in_blocks(&self, value: CellValue) -> &[NamedCellSet] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/sudoku.rs:281:19 [INFO] [stdout] | [INFO] [stdout] 280 | impl StepPosition { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 281 | pub(crate) fn new(reason: String, cell_index: CellIndex, value: CellValue) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking toml_datetime v0.6.8 [INFO] [stderr] Checking serde_json v1.0.128 [INFO] [stderr] Checking serde_spanned v0.6.8 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking toml_edit v0.22.22 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stderr] Checking wasm-bindgen-futures v0.4.43 [INFO] [stderr] Checking wasm-bindgen-test v0.3.43 [INFO] [stderr] Checking toml v0.8.19 [INFO] [stdout] warning: unused import: `comb` [INFO] [stdout] --> src/solver/single_digit_patterns/rectangle_elimination.rs:3:20 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::utils::{comb, NamedCellSet}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `itertools::Itertools` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pos` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:44:34 [INFO] [stdout] | [INFO] [stdout] 44 | let ref mut on_unselected = |pos: usize, element: usize| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pos` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pos` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:82:38 [INFO] [stdout] | [INFO] [stdout] 82 | let ref mut on_unselected = |pos: usize, element: usize| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pos` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `element` [INFO] [stdout] --> src/solver/fish/mutant_fish.rs:82:50 [INFO] [stdout] | [INFO] [stdout] 82 | let ref mut on_unselected = |pos: usize, element: usize| { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cols` [INFO] [stdout] --> src/solver/single_digit_patterns/rectangle_elimination.rs:90:5 [INFO] [stdout] | [INFO] [stdout] 90 | cols: &[NamedCellSet], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cols` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `skip_unselected` is never read [INFO] [stdout] --> src/utils/combination_generator.rs:100:17 [INFO] [stdout] | [INFO] [stdout] 100 | skip_unselected = false; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pos` [INFO] [stdout] --> src/utils/combination_generator.rs:150:44 [INFO] [stdout] | [INFO] [stdout] 150 | let ref mut on_element_selected = |pos, element| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pos` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pos` [INFO] [stdout] --> src/utils/combination_generator.rs:157:46 [INFO] [stdout] | [INFO] [stdout] 157 | let ref mut on_element_unselected = |pos, element| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_pos` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `candidate_cells_in_blocks` is never used [INFO] [stdout] --> src/solver.rs:153:19 [INFO] [stdout] | [INFO] [stdout] 43 | impl SudokuSolver { [INFO] [stdout] | ----------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 153 | pub(crate) fn candidate_cells_in_blocks(&self, value: CellValue) -> &[NamedCellSet] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/sudoku.rs:281:19 [INFO] [stdout] | [INFO] [stdout] 280 | impl StepPosition { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 281 | pub(crate) fn new(reason: String, cell_index: CellIndex, value: CellValue) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.83s [INFO] running `Command { std: "docker" "inspect" "1c49bf134064c846157748f8f3c5083ce3bb070499e34274074137d093c4baea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c49bf134064c846157748f8f3c5083ce3bb070499e34274074137d093c4baea", kill_on_drop: false }` [INFO] [stdout] 1c49bf134064c846157748f8f3c5083ce3bb070499e34274074137d093c4baea