[INFO] cloning repository https://github.com/nareshganduri/sudoku-solver-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nareshganduri/sudoku-solver-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnareshganduri%2Fsudoku-solver-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnareshganduri%2Fsudoku-solver-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ebf9087b4385681872ff45b23a837486c10bc4a9 [INFO] testing nareshganduri/sudoku-solver-rs against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnareshganduri%2Fsudoku-solver-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nareshganduri/sudoku-solver-rs on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nareshganduri/sudoku-solver-rs [INFO] finished tweaking git repo https://github.com/nareshganduri/sudoku-solver-rs [INFO] tweaked toml for git repo https://github.com/nareshganduri/sudoku-solver-rs written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/nareshganduri/sudoku-solver-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 95411b55910359526df4a04ce09ffc617f78bf810829e138cb7848db0d477c86 [INFO] running `Command { std: "docker" "start" "-a" "95411b55910359526df4a04ce09ffc617f78bf810829e138cb7848db0d477c86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "95411b55910359526df4a04ce09ffc617f78bf810829e138cb7848db0d477c86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95411b55910359526df4a04ce09ffc617f78bf810829e138cb7848db0d477c86", kill_on_drop: false }` [INFO] [stdout] 95411b55910359526df4a04ce09ffc617f78bf810829e138cb7848db0d477c86 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", 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] 6f304467151e42da21934b87f7a5905f7d7e1b075d0bc8d0e43a39d275337991 [INFO] running `Command { std: "docker" "start" "-a" "6f304467151e42da21934b87f7a5905f7d7e1b075d0bc8d0e43a39d275337991", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku-solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/graph.rs:43:57 [INFO] [stdout] | [INFO] [stdout] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `found` [INFO] [stdout] --> src/sudoku/parser.rs:6:16 [INFO] [stdout] | [INFO] [stdout] 6 | Expected { found: u8, needed: u8 }, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `needed` [INFO] [stdout] --> src/sudoku/parser.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | Expected { found: u8, needed: u8 }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `line_no` [INFO] [stdout] --> src/sudoku/parser.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | line_no: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `pos` [INFO] [stdout] --> src/sudoku/parser.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | pos: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> src/sudoku/parser.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | kind: ErrorKind, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[Vertex; 81]` does not permit being left uninitialized [INFO] [stdout] --> src/graph.rs:43:47 [INFO] [stdout] | [INFO] [stdout] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] note: booleans must be either `true` or `false` (in this struct field) [INFO] [stdout] --> src/graph.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | fixed: bool, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.77s [INFO] running `Command { std: "docker" "inspect" "6f304467151e42da21934b87f7a5905f7d7e1b075d0bc8d0e43a39d275337991", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f304467151e42da21934b87f7a5905f7d7e1b075d0bc8d0e43a39d275337991", kill_on_drop: false }` [INFO] [stdout] 6f304467151e42da21934b87f7a5905f7d7e1b075d0bc8d0e43a39d275337991 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", 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] 10600016835e42a8e4f83168049a0526617896debe80d39e54ce3a133dbbecdd [INFO] running `Command { std: "docker" "start" "-a" "10600016835e42a8e4f83168049a0526617896debe80d39e54ce3a133dbbecdd", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku-solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/graph.rs:43:57 [INFO] [stdout] | [INFO] [stdout] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `found` [INFO] [stdout] --> src/sudoku/parser.rs:6:16 [INFO] [stdout] | [INFO] [stdout] 6 | Expected { found: u8, needed: u8 }, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `needed` [INFO] [stdout] --> src/sudoku/parser.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | Expected { found: u8, needed: u8 }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `line_no` [INFO] [stdout] --> src/sudoku/parser.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | line_no: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `pos` [INFO] [stdout] --> src/sudoku/parser.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | pos: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> src/sudoku/parser.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | kind: ErrorKind, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[Vertex; 81]` does not permit being left uninitialized [INFO] [stdout] --> src/graph.rs:43:47 [INFO] [stdout] | [INFO] [stdout] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] note: booleans must be either `true` or `false` (in this struct field) [INFO] [stdout] --> src/graph.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | fixed: bool, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/graph.rs:43:57 [INFO] [stdout] | [INFO] [stdout] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `found` [INFO] [stdout] --> src/sudoku/parser.rs:6:16 [INFO] [stdout] | [INFO] [stdout] 6 | Expected { found: u8, needed: u8 }, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `needed` [INFO] [stdout] --> src/sudoku/parser.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | Expected { found: u8, needed: u8 }, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `line_no` [INFO] [stdout] --> src/sudoku/parser.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | line_no: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `pos` [INFO] [stdout] --> src/sudoku/parser.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | pos: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `kind` [INFO] [stdout] --> src/sudoku/parser.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | kind: ErrorKind, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/sudoku/parser.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[Vertex; 81]` does not permit being left uninitialized [INFO] [stdout] --> src/graph.rs:43:47 [INFO] [stdout] | [INFO] [stdout] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] note: booleans must be either `true` or `false` (in this struct field) [INFO] [stdout] --> src/graph.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | fixed: bool, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.65s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku_solver-9b3bffb9c225cc28) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_solver-853fcc3774caebf1) [INFO] running `Command { std: "docker" "inspect" "10600016835e42a8e4f83168049a0526617896debe80d39e54ce3a133dbbecdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10600016835e42a8e4f83168049a0526617896debe80d39e54ce3a133dbbecdd", kill_on_drop: false }` [INFO] [stdout] 10600016835e42a8e4f83168049a0526617896debe80d39e54ce3a133dbbecdd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8960d227a77ff91883eb42d94fd3d008e94224d8098f9ad80ac0888b9e913333 [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" "8960d227a77ff91883eb42d94fd3d008e94224d8098f9ad80ac0888b9e913333", kill_on_drop: false }` [INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stderr] --> src/graph.rs:43:57 [INFO] [stderr] | [INFO] [stderr] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `found` [INFO] [stderr] --> src/sudoku/parser.rs:6:16 [INFO] [stderr] | [INFO] [stderr] 6 | Expected { found: u8, needed: u8 }, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sudoku/parser.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `needed` [INFO] [stderr] --> src/sudoku/parser.rs:6:27 [INFO] [stderr] | [INFO] [stderr] 6 | Expected { found: u8, needed: u8 }, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ErrorKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sudoku/parser.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `line_no` [INFO] [stderr] --> src/sudoku/parser.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | line_no: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sudoku/parser.rs:11:10 [INFO] [stderr] | [INFO] [stderr] 11 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `pos` [INFO] [stderr] --> src/sudoku/parser.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | pos: usize, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sudoku/parser.rs:11:10 [INFO] [stderr] | [INFO] [stderr] 11 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `kind` [INFO] [stderr] --> src/sudoku/parser.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | kind: ErrorKind, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/sudoku/parser.rs:11:10 [INFO] [stderr] | [INFO] [stderr] 11 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: the type `[Vertex; 81]` does not permit being left uninitialized [INFO] [stderr] --> src/graph.rs:43:47 [INFO] [stderr] | [INFO] [stderr] 43 | let mut grid: [Vertex; 81] = unsafe { std::mem::uninitialized() }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | this code causes undefined behavior when executed [INFO] [stderr] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(invalid_value)]` on by default [INFO] [stderr] note: booleans must be either `true` or `false` (in this struct field) [INFO] [stderr] --> src/graph.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | fixed: bool, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `sudoku-solver` (lib) generated 7 warnings [INFO] [stdout] [INFO] [stderr] warning: `sudoku-solver` (lib test) generated 7 warnings (7 duplicates) [INFO] [stdout] running 2 tests [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku_solver-9b3bffb9c225cc28) [INFO] [stdout] test sudoku::tests::test_parse ... ok [INFO] [stdout] test tests::test_solve ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_solver-853fcc3774caebf1) [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests sudoku-solver [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - solve (line 16) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8960d227a77ff91883eb42d94fd3d008e94224d8098f9ad80ac0888b9e913333", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8960d227a77ff91883eb42d94fd3d008e94224d8098f9ad80ac0888b9e913333", kill_on_drop: false }` [INFO] [stdout] 8960d227a77ff91883eb42d94fd3d008e94224d8098f9ad80ac0888b9e913333