[INFO] cloning repository https://github.com/CaioPiccirillo/sudoku-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CaioPiccirillo/sudoku-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaioPiccirillo%2Fsudoku-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaioPiccirillo%2Fsudoku-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 895252c82be71e201206c86f0570b61b01b95c1f [INFO] checking CaioPiccirillo/sudoku-rust against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaioPiccirillo%2Fsudoku-rust" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CaioPiccirillo/sudoku-rust on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CaioPiccirillo/sudoku-rust [INFO] finished tweaking git repo https://github.com/CaioPiccirillo/sudoku-rust [INFO] tweaked toml for git repo https://github.com/CaioPiccirillo/sudoku-rust written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/CaioPiccirillo/sudoku-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d8faf7043ec273344108c8abcbe8116eb8827299176c7b838e26cf305a9ab69a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d8faf7043ec273344108c8abcbe8116eb8827299176c7b838e26cf305a9ab69a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d8faf7043ec273344108c8abcbe8116eb8827299176c7b838e26cf305a9ab69a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8faf7043ec273344108c8abcbe8116eb8827299176c7b838e26cf305a9ab69a", kill_on_drop: false }` [INFO] [stdout] d8faf7043ec273344108c8abcbe8116eb8827299176c7b838e26cf305a9ab69a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 49a5a934e3456b292624e2aff589b9a08320516527b8a54f8f7493d8062ffe88 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "49a5a934e3456b292624e2aff589b9a08320516527b8a54f8f7493d8062ffe88", kill_on_drop: false }` [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking weezl v0.1.3 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking rawpointer v0.1.0 [INFO] [stderr] Checking custom_derive v0.1.7 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling num-bigint v0.3.1 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Checking conv v0.3.3 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Checking gif v0.11.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking png v0.16.7 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking rulinalg v0.4.2 [INFO] [stderr] Checking rand_distr v0.2.2 [INFO] [stderr] Checking num v0.3.1 [INFO] [stderr] Checking jpeg-decoder v0.1.20 [INFO] [stderr] Checking tiff v0.6.0 [INFO] [stderr] Checking image v0.23.11 [INFO] [stderr] Checking imageproc v0.22.0 [INFO] [stderr] Checking sudoku-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `imageproc::contours::find_contours_with_threshold` [INFO] [stdout] --> src/reader.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use imageproc::contours::find_contours_with_threshold; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Sudoku` in this scope [INFO] [stdout] --> src/tests.rs:4:25 [INFO] [stdout] | [INFO] [stdout] 4 | fn generate_sample() -> Sudoku { [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 4 | use crate::sudoku::Sudoku; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Sudoku` [INFO] [stdout] --> src/tests.rs:5:28 [INFO] [stdout] | [INFO] [stdout] 5 | let mut sample_board = Sudoku::new(); [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 4 | use crate::sudoku::Sudoku; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Sudoku` in this scope [INFO] [stdout] --> src/tests.rs:36:25 [INFO] [stdout] | [INFO] [stdout] 36 | fn generate_target() -> Sudoku { [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 4 | use crate::sudoku::Sudoku; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Sudoku` [INFO] [stdout] --> src/tests.rs:37:28 [INFO] [stdout] | [INFO] [stdout] 37 | let mut target_board = Sudoku::new(); [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 4 | use crate::sudoku::Sudoku; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `imageproc::contours::find_contours_with_threshold` [INFO] [stdout] --> src/reader.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use imageproc::contours::find_contours_with_threshold; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `board` [INFO] [stdout] --> src/reader.rs:18:33 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn process_image(&self, board: &sudoku::Sudoku) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_board` [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:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let mut sudoku_board = sudoku::Sudoku::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: struct is never constructed: `Solver` [INFO] [stdout] --> src/solver.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Solver { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solver.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn new(data: Sudoku) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `check_board` [INFO] [stdout] --> src/solver.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn check_board(&self) -> Result<(), ()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Writer` [INFO] [stdout] --> src/writer.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Writer {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/writer.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0412, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0412`. [INFO] [stdout] [INFO] [stderr] error: could not compile `sudoku-rust` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "49a5a934e3456b292624e2aff589b9a08320516527b8a54f8f7493d8062ffe88", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49a5a934e3456b292624e2aff589b9a08320516527b8a54f8f7493d8062ffe88", kill_on_drop: false }` [INFO] [stdout] 49a5a934e3456b292624e2aff589b9a08320516527b8a54f8f7493d8062ffe88