[INFO] cloning repository https://github.com/JoshuaRadin37/sudoku [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshuaRadin37/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRadin37%2Fsudoku", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRadin37%2Fsudoku'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ab48534fd965ac293af7e19ab94618525193cbb5 [INFO] testing JoshuaRadin37/sudoku against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRadin37%2Fsudoku" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/JoshuaRadin37/sudoku [INFO] finished tweaking git repo https://github.com/JoshuaRadin37/sudoku [INFO] tweaked toml for git repo https://github.com/JoshuaRadin37/sudoku written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/JoshuaRadin37/sudoku on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/JoshuaRadin37/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_derive v1.0.126 [INFO] [stderr] Downloaded piston-graphics_api_version v1.0.0 [INFO] [stderr] Downloaded pistoncore-window v0.47.0 [INFO] [stderr] Downloaded shader_version v0.7.0 [INFO] [stderr] Downloaded pistoncore-input v1.0.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.27 [INFO] [stderr] Downloaded pistoncore-event_loop v0.53.0 [INFO] [stderr] Downloaded piston-float v1.0.0 [INFO] [stderr] Downloaded piston-viewport v1.0.0 [INFO] [stderr] Downloaded interpolation v0.2.0 [INFO] [stderr] Downloaded bitfield v0.13.2 [INFO] [stderr] Downloaded bytemuck v1.7.0 [INFO] [stderr] Downloaded xml-rs v0.8.3 [INFO] [stderr] Downloaded libloading v0.7.0 [INFO] [stderr] Downloaded pistoncore-glutin_window v0.69.0 [INFO] [stderr] Downloaded serde v1.0.126 [INFO] [stderr] Downloaded syn v1.0.73 [INFO] [stderr] Downloaded spin_sleep v1.0.0 [INFO] [stderr] Downloaded piston v0.53.0 [INFO] [stderr] Downloaded nom v6.2.1 [INFO] [stderr] Downloaded piston-shaders_graphics2d v0.4.0 [INFO] [stderr] Downloaded piston2d-graphics v0.40.0 [INFO] [stderr] Downloaded piston2d-opengl_graphics v0.78.0 [INFO] [stderr] Downloaded core-foundation v0.9.1 [INFO] [stderr] Downloaded redox_syscall v0.2.9 [INFO] [stderr] Downloaded piston-texture v0.8.0 [INFO] [stderr] Downloaded vecmath v1.0.0 [INFO] [stderr] Downloaded gl v0.13.0 [INFO] [stderr] Downloaded xcursor v0.3.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8af073fe7310fbbc1dd14fdefc79c1af11706a4e4954f5f77c80fc614d96a502 [INFO] running `Command { std: "docker" "start" "-a" "8af073fe7310fbbc1dd14fdefc79c1af11706a4e4954f5f77c80fc614d96a502", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8af073fe7310fbbc1dd14fdefc79c1af11706a4e4954f5f77c80fc614d96a502", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8af073fe7310fbbc1dd14fdefc79c1af11706a4e4954f5f77c80fc614d96a502", kill_on_drop: false }` [INFO] [stdout] 8af073fe7310fbbc1dd14fdefc79c1af11706a4e4954f5f77c80fc614d96a502 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 0b3b5e91181d15fca3ad9f19d03a18aa6c5f86dbc28fea3af5bd7080bc1b6059 [INFO] running `Command { std: "docker" "start" "-a" "0b3b5e91181d15fca3ad9f19d03a18aa6c5f86dbc28fea3af5bd7080bc1b6059", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling libloading v0.7.0 [INFO] [stderr] Compiling ttf-parser v0.6.2 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling piston-float v1.0.0 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling nom v6.2.1 [INFO] [stderr] Compiling ab_glyph_rasterizer v0.1.4 [INFO] [stderr] Compiling dlib v0.5.0 [INFO] [stderr] Compiling scoped-tls v1.0.0 [INFO] [stderr] Compiling downcast-rs v1.2.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling piston-viewport v1.0.0 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling piston-graphics_api_version v1.0.0 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Compiling libloading v0.6.7 [INFO] [stderr] Compiling slab v0.4.3 [INFO] [stderr] Compiling xdg v2.2.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling dlib v0.4.2 [INFO] [stderr] Compiling wayland-sys v0.28.6 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling weezl v0.1.5 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling owned_ttf_parser v0.6.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling rusttype v0.9.2 [INFO] [stderr] Compiling wayland-scanner v0.28.6 [INFO] [stderr] Compiling nix v0.20.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling glutin_egl_sys v0.1.5 [INFO] [stderr] Compiling glutin_glx_sys v0.1.7 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling gl v0.13.0 [INFO] [stderr] Compiling andrew v0.3.1 [INFO] [stderr] Compiling memmap2 v0.1.0 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling xcursor v0.3.3 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling shared_library v0.1.9 [INFO] [stderr] Compiling raw-window-handle v0.3.3 [INFO] [stderr] Compiling gif v0.11.2 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] Compiling shader_version v0.7.0 [INFO] [stderr] Compiling vecmath v1.0.0 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling piston-texture v0.8.0 [INFO] [stderr] Compiling wayland-client v0.28.6 [INFO] [stderr] Compiling wayland-protocols v0.28.6 [INFO] [stderr] Compiling interpolation v0.2.0 [INFO] [stderr] Compiling bytemuck v1.7.0 [INFO] [stderr] Compiling read_color v1.0.0 [INFO] [stderr] Compiling spin_sleep v1.0.0 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling piston2d-graphics v0.40.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling piston-shaders_graphics2d v0.4.0 [INFO] [stderr] Compiling rand_pcg v0.3.1 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling bitfield v0.13.2 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling calloop v0.6.5 [INFO] [stderr] Compiling wayland-commons v0.28.6 [INFO] [stderr] Compiling jpeg-decoder v0.1.22 [INFO] [stderr] Compiling tiff v0.6.1 [INFO] [stderr] Compiling wayland-cursor v0.28.6 [INFO] [stderr] Compiling wayland-egl v0.28.6 [INFO] [stderr] Compiling image v0.23.14 [INFO] [stderr] Compiling piston2d-opengl_graphics v0.78.0 [INFO] [stderr] Compiling pistoncore-input v1.0.0 [INFO] [stderr] Compiling pistoncore-window v0.47.0 [INFO] [stderr] Compiling pistoncore-event_loop v0.53.0 [INFO] [stderr] Compiling piston v0.53.0 [INFO] [stderr] Compiling smithay-client-toolkit v0.12.3 [INFO] [stderr] Compiling winit v0.24.0 [INFO] [stderr] Compiling glutin v0.26.0 [INFO] [stderr] Compiling pistoncore-glutin_window v0.69.0 [INFO] [stderr] Compiling sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/game_creator/random_create_game.rs:5:26 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Instant, Duration}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::advanced_solver::Solver` [INFO] [stdout] --> src/game_creator/random_create_game.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use crate::advanced_solver::Solver; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `game_board` [INFO] [stdout] --> src/advanced_solver/techniques/hidden_pair.rs:14:24 [INFO] [stdout] | [INFO] [stdout] 14 | fn apply_to(&self, game_board: &GameBoard) -> Result { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_board` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `solution` [INFO] [stdout] --> src/game_creator/random_create_game.rs:216:13 [INFO] [stdout] | [INFO] [stdout] 216 | let solution = game_board.clone(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solution` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/game_creator/byte_string_create_game.rs:21:32 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct ByteStringFormError(String); [INFO] [stdout] | ------------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `ByteStringFormError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_from_vec` is never used [INFO] [stdout] --> src/game_creator/random_create_game.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn take_from_vec(vector: &mut Vec, rng: &mut R) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:536:16 [INFO] [stdout] | [INFO] [stdout] 536 | pub fn row(&self, index: usize) -> Option { [INFO] [stdout] | ^^^^^ --- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 536 | pub fn row(&self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:544:20 [INFO] [stdout] | [INFO] [stdout] 544 | pub fn row_mut(&mut self, index: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 544 | pub fn row_mut(&mut self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:552:19 [INFO] [stdout] | [INFO] [stdout] 552 | pub fn column(&self, index: usize) -> Option { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 552 | pub fn column(&self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:572:23 [INFO] [stdout] | [INFO] [stdout] 572 | pub fn column_mut(&mut self, index: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 572 | pub fn column_mut(&mut self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:580:18 [INFO] [stdout] | [INFO] [stdout] 580 | pub fn house(&self, x: usize, y: usize) -> Option { [INFO] [stdout] | ^^^^^ ----- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 580 | pub fn house(&self, x: usize, y: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:604:22 [INFO] [stdout] | [INFO] [stdout] 604 | pub fn house_mut(&mut self, x: usize, y: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 604 | pub fn house_mut(&mut self, x: usize, y: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:621:20 [INFO] [stdout] | [INFO] [stdout] 621 | pub fn columns(&self) -> impl IntoIterator { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 621 | pub fn columns(&self) -> impl IntoIterator> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:628:17 [INFO] [stdout] | [INFO] [stdout] 628 | pub fn rows(&self) -> impl IntoIterator { [INFO] [stdout] | ^^^^^ --- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 628 | pub fn rows(&self) -> impl IntoIterator> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:635:19 [INFO] [stdout] | [INFO] [stdout] 635 | pub fn houses(&self) -> impl IntoIterator { [INFO] [stdout] | ^^^^^ ----- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 635 | pub fn houses(&self) -> impl IntoIterator> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.04s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.2.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "0b3b5e91181d15fca3ad9f19d03a18aa6c5f86dbc28fea3af5bd7080bc1b6059", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b3b5e91181d15fca3ad9f19d03a18aa6c5f86dbc28fea3af5bd7080bc1b6059", kill_on_drop: false }` [INFO] [stdout] 0b3b5e91181d15fca3ad9f19d03a18aa6c5f86dbc28fea3af5bd7080bc1b6059 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 6d451e4fc5aa3ca22b6732151ea8becd94813b04d7ad461102dc56a95a83179a [INFO] running `Command { std: "docker" "start" "-a" "6d451e4fc5aa3ca22b6732151ea8becd94813b04d7ad461102dc56a95a83179a", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/game_creator/random_create_game.rs:5:26 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Instant, Duration}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::advanced_solver::Solver` [INFO] [stdout] --> src/game_creator/random_create_game.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use crate::advanced_solver::Solver; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `game_board` [INFO] [stdout] --> src/advanced_solver/techniques/hidden_pair.rs:14:24 [INFO] [stdout] | [INFO] [stdout] 14 | fn apply_to(&self, game_board: &GameBoard) -> Result { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_board` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `solution` [INFO] [stdout] --> src/game_creator/random_create_game.rs:216:13 [INFO] [stdout] | [INFO] [stdout] 216 | let solution = game_board.clone(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solution` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/game_creator/byte_string_create_game.rs:21:32 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct ByteStringFormError(String); [INFO] [stdout] | ------------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `ByteStringFormError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_from_vec` is never used [INFO] [stdout] --> src/game_creator/random_create_game.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn take_from_vec(vector: &mut Vec, rng: &mut R) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:536:16 [INFO] [stdout] | [INFO] [stdout] 536 | pub fn row(&self, index: usize) -> Option { [INFO] [stdout] | ^^^^^ --- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 536 | pub fn row(&self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:544:20 [INFO] [stdout] | [INFO] [stdout] 544 | pub fn row_mut(&mut self, index: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 544 | pub fn row_mut(&mut self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:552:19 [INFO] [stdout] | [INFO] [stdout] 552 | pub fn column(&self, index: usize) -> Option { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 552 | pub fn column(&self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:572:23 [INFO] [stdout] | [INFO] [stdout] 572 | pub fn column_mut(&mut self, index: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 572 | pub fn column_mut(&mut self, index: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:580:18 [INFO] [stdout] | [INFO] [stdout] 580 | pub fn house(&self, x: usize, y: usize) -> Option { [INFO] [stdout] | ^^^^^ ----- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 580 | pub fn house(&self, x: usize, y: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:604:22 [INFO] [stdout] | [INFO] [stdout] 604 | pub fn house_mut(&mut self, x: usize, y: usize) -> Option { [INFO] [stdout] | ^^^^^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 604 | pub fn house_mut(&mut self, x: usize, y: usize) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:621:20 [INFO] [stdout] | [INFO] [stdout] 621 | pub fn columns(&self) -> impl IntoIterator { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 621 | pub fn columns(&self) -> impl IntoIterator> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:628:17 [INFO] [stdout] | [INFO] [stdout] 628 | pub fn rows(&self) -> impl IntoIterator { [INFO] [stdout] | ^^^^^ --- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 628 | pub fn rows(&self) -> impl IntoIterator> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/game_board.rs:635:19 [INFO] [stdout] | [INFO] [stdout] 635 | pub fn houses(&self) -> impl IntoIterator { [INFO] [stdout] | ^^^^^ ----- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 635 | pub fn houses(&self) -> impl IntoIterator> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.2.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "6d451e4fc5aa3ca22b6732151ea8becd94813b04d7ad461102dc56a95a83179a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d451e4fc5aa3ca22b6732151ea8becd94813b04d7ad461102dc56a95a83179a", kill_on_drop: false }` [INFO] [stdout] 6d451e4fc5aa3ca22b6732151ea8becd94813b04d7ad461102dc56a95a83179a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 6516a48e2766c86cbcd6191bae37e249f60a5dd5ee56f14e3d122755f4cd4877 [INFO] running `Command { std: "docker" "start" "-a" "6516a48e2766c86cbcd6191bae37e249f60a5dd5ee56f14e3d122755f4cd4877", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Duration` [INFO] [stderr] --> src/game_creator/random_create_game.rs:5:26 [INFO] [stderr] | [INFO] [stderr] 5 | use std::time::{Instant, Duration}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `crate::advanced_solver::Solver` [INFO] [stderr] --> src/game_creator/random_create_game.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | use crate::advanced_solver::Solver; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `game_board` [INFO] [stderr] --> src/advanced_solver/techniques/hidden_pair.rs:14:24 [INFO] [stderr] | [INFO] [stderr] 14 | fn apply_to(&self, game_board: &GameBoard) -> Result { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_board` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `solution` [INFO] [stderr] --> src/game_creator/random_create_game.rs:216:13 [INFO] [stderr] | [INFO] [stderr] 216 | let solution = game_board.clone(); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solution` [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/game_creator/byte_string_create_game.rs:21:32 [INFO] [stderr] | [INFO] [stderr] 21 | pub struct ByteStringFormError(String); [INFO] [stderr] | ------------------- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this struct [INFO] [stderr] | [INFO] [stderr] = help: consider removing this field [INFO] [stderr] = note: `ByteStringFormError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `take_from_vec` is never used [INFO] [stderr] --> src/game_creator/random_create_game.rs:67:4 [INFO] [stderr] | [INFO] [stderr] 67 | fn take_from_vec(vector: &mut Vec, rng: &mut R) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:536:16 [INFO] [stderr] | [INFO] [stderr] 536 | pub fn row(&self, index: usize) -> Option { [INFO] [stderr] | ^^^^^ --- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 536 | pub fn row(&self, index: usize) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:544:20 [INFO] [stderr] | [INFO] [stderr] 544 | pub fn row_mut(&mut self, index: usize) -> Option { [INFO] [stderr] | ^^^^^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 544 | pub fn row_mut(&mut self, index: usize) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:552:19 [INFO] [stderr] | [INFO] [stderr] 552 | pub fn column(&self, index: usize) -> Option { [INFO] [stderr] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 552 | pub fn column(&self, index: usize) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:572:23 [INFO] [stderr] | [INFO] [stderr] 572 | pub fn column_mut(&mut self, index: usize) -> Option { [INFO] [stderr] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 572 | pub fn column_mut(&mut self, index: usize) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:580:18 [INFO] [stderr] | [INFO] [stderr] 580 | pub fn house(&self, x: usize, y: usize) -> Option { [INFO] [stderr] | ^^^^^ ----- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 580 | pub fn house(&self, x: usize, y: usize) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:604:22 [INFO] [stderr] | [INFO] [stderr] 604 | pub fn house_mut(&mut self, x: usize, y: usize) -> Option { [INFO] [stderr] | ^^^^^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 604 | pub fn house_mut(&mut self, x: usize, y: usize) -> Option> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:621:20 [INFO] [stderr] | [INFO] [stderr] 621 | pub fn columns(&self) -> impl IntoIterator { [INFO] [stderr] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 621 | pub fn columns(&self) -> impl IntoIterator> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:628:17 [INFO] [stderr] | [INFO] [stderr] 628 | pub fn rows(&self) -> impl IntoIterator { [INFO] [stderr] | ^^^^^ --- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 628 | pub fn rows(&self) -> impl IntoIterator> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/game_board.rs:635:19 [INFO] [stderr] | [INFO] [stderr] 635 | pub fn houses(&self) -> impl IntoIterator { [INFO] [stderr] | ^^^^^ ----- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 635 | pub fn houses(&self) -> impl IntoIterator> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `sudoku` (bin "sudoku" test) generated 15 warnings (run `cargo fix --bin "sudoku" --tests` to apply 11 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.2.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/sudoku-05635d23b1282010) [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] running `Command { std: "docker" "inspect" "6516a48e2766c86cbcd6191bae37e249f60a5dd5ee56f14e3d122755f4cd4877", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6516a48e2766c86cbcd6191bae37e249f60a5dd5ee56f14e3d122755f4cd4877", kill_on_drop: false }` [INFO] [stdout] 6516a48e2766c86cbcd6191bae37e249f60a5dd5ee56f14e3d122755f4cd4877