[INFO] cloning repository https://github.com/tinyCatzilla/sudoku [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tinyCatzilla/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtinyCatzilla%2Fsudoku", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtinyCatzilla%2Fsudoku'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 00acbb36685ca401c4e4535684c176b68980c2a5 [INFO] checking tinyCatzilla/sudoku against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtinyCatzilla%2Fsudoku" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tinyCatzilla/sudoku on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tinyCatzilla/sudoku [INFO] finished tweaking git repo https://github.com/tinyCatzilla/sudoku [INFO] tweaked toml for git repo https://github.com/tinyCatzilla/sudoku written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tinyCatzilla/sudoku already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded encode_unicode v1.0.0 [INFO] [stderr] Downloaded prettytable-rs v0.10.0 [INFO] [stderr] Downloaded os_str_bytes v6.5.1 [INFO] [stderr] Downloaded gnuplot v0.0.39 [INFO] [stderr] Downloaded rayon-core v1.11.0 [INFO] [stderr] Downloaded criterion v0.4.0 [INFO] [stderr] Downloaded rayon v1.7.0 [INFO] [stderr] Downloaded csv v1.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5160a2dc03e263ddc739d50e08736b1205989abfe16b5a6f7dc8dde4035c032f [INFO] running `Command { std: "docker" "start" "-a" "5160a2dc03e263ddc739d50e08736b1205989abfe16b5a6f7dc8dde4035c032f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5160a2dc03e263ddc739d50e08736b1205989abfe16b5a6f7dc8dde4035c032f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5160a2dc03e263ddc739d50e08736b1205989abfe16b5a6f7dc8dde4035c032f", kill_on_drop: false }` [INFO] [stdout] 5160a2dc03e263ddc739d50e08736b1205989abfe16b5a6f7dc8dde4035c032f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 647f84ce0a87ff8c78027cefd536930cee502f3569aff6fd528d5b4a3556c156 [INFO] running `Command { std: "docker" "start" "-a" "647f84ce0a87ff8c78027cefd536930cee502f3569aff6fd528d5b4a3556c156", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Compiling rustix v0.38.4 [INFO] [stderr] Compiling backtrace v0.3.68 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Compiling quote v1.0.31 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking linux-raw-sys v0.4.3 [INFO] [stderr] Checking bitflags v2.3.3 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Compiling syn v2.0.26 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking owo-colors v3.5.0 [INFO] [stderr] Compiling rayon-core v1.11.0 [INFO] [stderr] Compiling serde_json v1.0.103 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking eyre v0.6.8 [INFO] [stderr] Checking encode_unicode v1.0.0 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Checking tracing-subscriber v0.3.17 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking ciborium-io v0.2.1 [INFO] [stderr] Checking os_str_bytes v6.5.1 [INFO] [stderr] Checking regex-syntax v0.7.4 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking object v0.31.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Checking gnuplot v0.0.39 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking textwrap v0.16.0 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking ciborium-ll v0.2.1 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking rayon v1.7.0 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking num-integer v0.1.45 [INFO] [stderr] Checking num-complex v0.4.3 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking tracing-error v0.2.0 [INFO] [stderr] Checking regex-automata v0.3.3 [INFO] [stderr] Checking color-spantrace v0.2.0 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Checking regex v1.9.1 [INFO] [stderr] Checking num v0.4.1 [INFO] [stderr] Checking color-eyre v0.6.2 [INFO] [stderr] Checking csv v1.2.2 [INFO] [stderr] Checking ciborium v0.2.1 [INFO] [stderr] Checking prettytable-rs v0.10.0 [INFO] [stderr] Checking sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stdout] warning: function `cross` is never used [INFO] [stdout] --> src/utils.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn cross(a: &[A], b: &[B]) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `coords_to_cell` is never used [INFO] [stdout] --> src/utils.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn coords_to_cell(row: usize, col: usize) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cell_to_coords` is never used [INFO] [stdout] --> src/utils.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn cell_to_coords(cell: &str) -> (usize, usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Cell`, `Row`, and `Table` [INFO] [stdout] --> src/main.rs:8:19 [INFO] [stdout] | [INFO] [stdout] 8 | use prettytable::{Table, Row, Cell}; [INFO] [stdout] | ^^^^^ ^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stdout] warning: value assigned to `index` is never read [INFO] [stdout] --> src/sudoku.rs:579:25 [INFO] [stdout] | [INFO] [stdout] 579 | index -= 1; [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: `result` [INFO] [stdout] --> src/main.rs:48:17 [INFO] [stdout] | [INFO] [stdout] 48 | let result = solver.solve(&mut sudoku_clone); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | let mut reader = BufReader::new(file); [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cross` is never used [INFO] [stdout] --> src/utils.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn cross(a: &[A], b: &[B]) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `coords_to_cell` is never used [INFO] [stdout] --> src/utils.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn coords_to_cell(row: usize, col: usize) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cell_to_coords` is never used [INFO] [stdout] --> src/utils.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn cell_to_coords(cell: &str) -> (usize, usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Cell`, `Row`, and `Table` [INFO] [stdout] --> src/main.rs:8:19 [INFO] [stdout] | [INFO] [stdout] 8 | use prettytable::{Table, Row, Cell}; [INFO] [stdout] | ^^^^^ ^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `index` is never read [INFO] [stdout] --> src/sudoku.rs:579:25 [INFO] [stdout] | [INFO] [stdout] 579 | index -= 1; [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: `result` [INFO] [stdout] --> src/main.rs:48:17 [INFO] [stdout] | [INFO] [stdout] 48 | let result = solver.solve(&mut sudoku_clone); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:13 [INFO] [stdout] | [INFO] [stdout] 20 | let mut reader = BufReader::new(file); [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.05s [INFO] running `Command { std: "docker" "inspect" "647f84ce0a87ff8c78027cefd536930cee502f3569aff6fd528d5b4a3556c156", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "647f84ce0a87ff8c78027cefd536930cee502f3569aff6fd528d5b4a3556c156", kill_on_drop: false }` [INFO] [stdout] 647f84ce0a87ff8c78027cefd536930cee502f3569aff6fd528d5b4a3556c156