[INFO] cloning repository https://github.com/tomvidm/rust-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/tomvidm/rust-sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomvidm%2Frust-sudoku-solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomvidm%2Frust-sudoku-solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9778d53891d8a991798dcffb2afeb743bbc9da94 [INFO] checking tomvidm/rust-sudoku-solver against master#bb89df6903539e7014b8db29bccd6a9ee9553122 for pr-121072 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomvidm%2Frust-sudoku-solver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tomvidm/rust-sudoku-solver on toolchain bb89df6903539e7014b8db29bccd6a9ee9553122 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tomvidm/rust-sudoku-solver [INFO] finished tweaking git repo https://github.com/tomvidm/rust-sudoku-solver [INFO] tweaked toml for git repo https://github.com/tomvidm/rust-sudoku-solver written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tomvidm/rust-sudoku-solver 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" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking tomvidm/rust-sudoku-solver against try#e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 for pr-121072 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomvidm%2Frust-sudoku-solver" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tomvidm/rust-sudoku-solver on toolchain e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tomvidm/rust-sudoku-solver [INFO] finished tweaking git repo https://github.com/tomvidm/rust-sudoku-solver [INFO] tweaked toml for git repo https://github.com/tomvidm/rust-sudoku-solver written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tomvidm/rust-sudoku-solver 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" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde v1.0.73 [INFO] [stderr] Downloaded serde_derive v1.0.73 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 83723aff7489c8a687717630ca4a7e6a64aef895081d80a0ea28ba8e92c4fe2d [INFO] running `Command { std: "docker" "start" "-a" "83723aff7489c8a687717630ca4a7e6a64aef895081d80a0ea28ba8e92c4fe2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "83723aff7489c8a687717630ca4a7e6a64aef895081d80a0ea28ba8e92c4fe2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83723aff7489c8a687717630ca4a7e6a64aef895081d80a0ea28ba8e92c4fe2d", kill_on_drop: false }` [INFO] [stdout] 83723aff7489c8a687717630ca4a7e6a64aef895081d80a0ea28ba8e92c4fe2d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3072a8fd1d496fba54eab83c8014b5a4c97175a1a2ff6f370639c7c69ff96152 [INFO] running `Command { std: "docker" "start" "-a" "3072a8fd1d496fba54eab83c8014b5a4c97175a1a2ff6f370639c7c69ff96152", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.13 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde v1.0.73 [INFO] [stderr] Compiling ryu v0.2.4 [INFO] [stderr] Checking itoa v0.4.2 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling serde_derive v1.0.73 [INFO] [stderr] Checking serde_json v1.0.26 [INFO] [stderr] Checking sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/su/board.rs:100:29 [INFO] [stdout] | [INFO] [stdout] 100 | self.allowed_in_row[(row as usize)][(value as usize) - 1] [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 100 - self.allowed_in_row[(row as usize)][(value as usize) - 1] [INFO] [stdout] 100 + self.allowed_in_row[row as usize][(value as usize) - 1] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/su/board.rs:104:29 [INFO] [stdout] | [INFO] [stdout] 104 | self.allowed_in_col[(col as usize)][(value as usize) - 1] [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 104 - self.allowed_in_col[(col as usize)][(value as usize) - 1] [INFO] [stdout] 104 + self.allowed_in_col[col as usize][(value as usize) - 1] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/su/board.rs:108:32 [INFO] [stdout] | [INFO] [stdout] 108 | self.allowed_in_square[(square as usize)][(value as usize) - 1] [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 108 - self.allowed_in_square[(square as usize)][(value as usize) - 1] [INFO] [stdout] 108 + self.allowed_in_square[square as usize][(value as usize) - 1] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::sugame::Game` [INFO] [stdout] --> src/su/mod.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub use self::sugame::Game; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/su/board.rs:100:29 [INFO] [stdout] | [INFO] [stdout] 100 | self.allowed_in_row[(row as usize)][(value as usize) - 1] [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 100 - self.allowed_in_row[(row as usize)][(value as usize) - 1] [INFO] [stdout] 100 + self.allowed_in_row[row as usize][(value as usize) - 1] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/su/board.rs:104:29 [INFO] [stdout] | [INFO] [stdout] 104 | self.allowed_in_col[(col as usize)][(value as usize) - 1] [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 104 - self.allowed_in_col[(col as usize)][(value as usize) - 1] [INFO] [stdout] 104 + self.allowed_in_col[col as usize][(value as usize) - 1] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/su/board.rs:108:32 [INFO] [stdout] | [INFO] [stdout] 108 | self.allowed_in_square[(square as usize)][(value as usize) - 1] [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 108 - self.allowed_in_square[(square as usize)][(value as usize) - 1] [INFO] [stdout] 108 + self.allowed_in_square[square as usize][(value as usize) - 1] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::sugame::Game` [INFO] [stdout] --> src/su/mod.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub use self::sugame::Game; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `coord` [INFO] [stdout] --> src/su/board.rs:80:21 [INFO] [stdout] | [INFO] [stdout] 80 | let coord = Coord::new(r, c); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_coord` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `coord` [INFO] [stdout] --> src/su/board.rs:80:21 [INFO] [stdout] | [INFO] [stdout] 80 | let coord = Coord::new(r, c); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_coord` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `old_entry` [INFO] [stdout] --> src/su/board.rs:174:17 [INFO] [stdout] | [INFO] [stdout] 174 | let old_entry = Move::new_from_coord_and_value(coord, old_value); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_entry` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `old_entry` [INFO] [stdout] --> src/su/board.rs:174:17 [INFO] [stdout] | [INFO] [stdout] 174 | let old_entry = Move::new_from_coord_and_value(coord, old_value); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_entry` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `board` [INFO] [stdout] --> src/su/board.rs:205:13 [INFO] [stdout] | [INFO] [stdout] 205 | let mut board = Board::new_from_array(valid_raw_board); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_board` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/su/board.rs:205:9 [INFO] [stdout] | [INFO] [stdout] 205 | let mut board = Board::new_from_array(valid_raw_board); [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: unused variable: `raw_board_struct` [INFO] [stdout] --> src/su/sugame.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let raw_board_struct = raw_board.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_board_struct` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `board` [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let board = su::Board::new(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_board` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/su/sugame.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct RawBoard { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 9 | data: [[i8; 9]; 9] [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Game` is never constructed [INFO] [stdout] --> src/su/sugame.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct Game { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `test_game` is never used [INFO] [stdout] --> src/su/sugame.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Game { [INFO] [stdout] | --------- associated function in this implementation [INFO] [stdout] 17 | fn test_game() -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `raw_board_struct` [INFO] [stdout] --> src/su/sugame.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let raw_board_struct = raw_board.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_board_struct` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `game` [INFO] [stdout] --> src/su/sugame.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let game = Game::test_game(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_game` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `board` [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let board = su::Board::new(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_board` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/su/sugame.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct RawBoard { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 9 | data: [[i8; 9]; 9] [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `board` is never read [INFO] [stdout] --> src/su/sugame.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct Game { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 13 | board: Board, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.88s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "3072a8fd1d496fba54eab83c8014b5a4c97175a1a2ff6f370639c7c69ff96152", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3072a8fd1d496fba54eab83c8014b5a4c97175a1a2ff6f370639c7c69ff96152", kill_on_drop: false }` [INFO] [stdout] 3072a8fd1d496fba54eab83c8014b5a4c97175a1a2ff6f370639c7c69ff96152