[INFO] cloning repository https://github.com/Tyraeis/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/Tyraeis/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTyraeis%2Fsudoku-solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTyraeis%2Fsudoku-solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 04d21d52fbcf538365ebb45d7d0ba0445c689269 [INFO] checking Tyraeis/sudoku-solver against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTyraeis%2Fsudoku-solver" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Tyraeis/sudoku-solver on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Tyraeis/sudoku-solver [INFO] finished tweaking git repo https://github.com/Tyraeis/sudoku-solver [INFO] tweaked toml for git repo https://github.com/Tyraeis/sudoku-solver written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/Tyraeis/sudoku-solver already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2443e3a495b726bc7803ba50978991fd3b4438576d04abf6553a37e90501996d [INFO] running `Command { std: "docker" "start" "-a" "2443e3a495b726bc7803ba50978991fd3b4438576d04abf6553a37e90501996d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2443e3a495b726bc7803ba50978991fd3b4438576d04abf6553a37e90501996d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2443e3a495b726bc7803ba50978991fd3b4438576d04abf6553a37e90501996d", kill_on_drop: false }` [INFO] [stdout] 2443e3a495b726bc7803ba50978991fd3b4438576d04abf6553a37e90501996d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5807e9ae9903ed18505284b5e01ed67e565975b09720dcf2175f23b14cae8d2d [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" "5807e9ae9903ed18505284b5e01ed67e565975b09720dcf2175f23b14cae8d2d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling serde v1.0.89 [INFO] [stderr] Checking csv-core v0.1.5 [INFO] [stderr] Checking csv v1.0.5 [INFO] [stderr] Checking sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:159:17 [INFO] [stdout] | [INFO] [stdout] 159 | let mut cell = board.get_mut(i).unwrap(); [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/main.rs:159:17 [INFO] [stdout] | [INFO] [stdout] 159 | let mut cell = board.get_mut(i).unwrap(); [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/main.rs:17:21 [INFO] [stdout] | [INFO] [stdout] 17 | let mut p = &mut peers[9*row + col]; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `unset` [INFO] [stdout] --> src/main.rs:90:8 [INFO] [stdout] | [INFO] [stdout] 90 | fn unset(&mut self, num: u8) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_board` [INFO] [stdout] --> src/main.rs:240:4 [INFO] [stdout] | [INFO] [stdout] 240 | fn print_board(board: &SudokuBoard) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:17:21 [INFO] [stdout] | [INFO] [stdout] 17 | let mut p = &mut peers[9*row + col]; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `unset` [INFO] [stdout] --> src/main.rs:90:8 [INFO] [stdout] | [INFO] [stdout] 90 | fn unset(&mut self, num: u8) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_board` [INFO] [stdout] --> src/main.rs:240:4 [INFO] [stdout] | [INFO] [stdout] 240 | fn print_board(board: &SudokuBoard) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.93s [INFO] running `Command { std: "docker" "inspect" "5807e9ae9903ed18505284b5e01ed67e565975b09720dcf2175f23b14cae8d2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5807e9ae9903ed18505284b5e01ed67e565975b09720dcf2175f23b14cae8d2d", kill_on_drop: false }` [INFO] [stdout] 5807e9ae9903ed18505284b5e01ed67e565975b09720dcf2175f23b14cae8d2d