[INFO] cloning repository https://github.com/victorlaurentiu/maze_gen [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/victorlaurentiu/maze_gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlaurentiu%2Fmaze_gen", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlaurentiu%2Fmaze_gen'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ab01fff9b9c2483b1783cc85b9971d219f9d6c4f [INFO] checking victorlaurentiu/maze_gen against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlaurentiu%2Fmaze_gen" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/victorlaurentiu/maze_gen on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/victorlaurentiu/maze_gen [INFO] finished tweaking git repo https://github.com/victorlaurentiu/maze_gen [INFO] tweaked toml for git repo https://github.com/victorlaurentiu/maze_gen written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/victorlaurentiu/maze_gen 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 28 packages [INFO] [stderr] Adding bitflags v2.5.0 [INFO] [stderr] Adding clap v4.1.11 (latest: v4.5.4) [INFO] [stderr] Adding clap_derive v4.1.9 (latest: v4.5.4) [INFO] [stderr] Adding clap_lex v0.3.3 (latest: v0.7.0) [INFO] [stderr] Adding heck v0.4.1 (latest: v0.5.0) [INFO] [stderr] Adding hermit-abi v0.3.9 [INFO] [stderr] Adding is-terminal v0.4.12 [INFO] [stderr] Adding os_str_bytes v6.6.1 (latest: v7.0.0) [INFO] [stderr] Adding ppv-lite86 v0.2.17 [INFO] [stderr] Adding proc-macro-error v1.0.4 [INFO] [stderr] Adding proc-macro-error-attr v1.0.4 [INFO] [stderr] Updating proc-macro2 v1.0.39 -> v1.0.79 [INFO] [stderr] Adding queues v1.1.0 [INFO] [stderr] Adding rand v0.8.5 [INFO] [stderr] Adding rand_chacha v0.3.1 [INFO] [stderr] Adding rand_core v0.6.4 [INFO] [stderr] Adding strsim v0.10.0 (latest: v0.11.1) [INFO] [stderr] Adding termcolor v1.4.1 [INFO] [stderr] Adding version_check v0.9.4 [INFO] [stderr] Adding windows-sys v0.52.0 [INFO] [stderr] Adding windows-targets v0.52.4 [INFO] [stderr] Adding windows_aarch64_gnullvm v0.52.4 [INFO] [stderr] Adding windows_aarch64_msvc v0.52.4 [INFO] [stderr] Adding windows_i686_gnu v0.52.4 [INFO] [stderr] Adding windows_i686_msvc v0.52.4 [INFO] [stderr] Adding windows_x86_64_gnu v0.52.4 [INFO] [stderr] Adding windows_x86_64_gnullvm v0.52.4 [INFO] [stderr] Adding windows_x86_64_msvc v0.52.4 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded queues v1.1.0 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.81 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.81 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.81 [INFO] [stderr] Downloaded wasm-bindgen v0.2.81 [INFO] [stderr] Downloaded gfx_gl v0.6.1 [INFO] [stderr] Downloaded draw_state v0.8.0 [INFO] [stderr] Downloaded piston-gfx_texture v0.42.0 [INFO] [stderr] Downloaded piston-shaders_graphics2d v0.4.0 [INFO] [stderr] Downloaded interpolation v0.2.0 [INFO] [stderr] Downloaded ndk-glue v0.2.1 [INFO] [stderr] Downloaded pistoncore-event_loop v0.53.1 [INFO] [stderr] Downloaded clap_lex v0.3.3 [INFO] [stderr] Downloaded clap_derive v4.1.9 [INFO] [stderr] Downloaded gfx_device_gl v0.16.2 [INFO] [stderr] Downloaded gl_generator v0.13.1 [INFO] [stderr] Downloaded piston2d-opengl_graphics v0.81.0 [INFO] [stderr] Downloaded clap v4.1.11 [INFO] [stderr] Downloaded khronos_api v2.2.0 [INFO] [stderr] Downloaded image v0.24.2 [INFO] [stderr] 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[INFO] [stderr] Downloaded gl v0.13.0 [INFO] [stderr] Downloaded num_enum_derive v0.4.3 [INFO] [stderr] Downloaded num_enum v0.4.3 [INFO] [stderr] Downloaded raw-window-handle v0.3.4 [INFO] [stderr] Downloaded thiserror-impl v1.0.31 [INFO] [stderr] Downloaded thiserror v1.0.31 [INFO] [stderr] Downloaded xdg v2.4.1 [INFO] [stderr] Downloaded piston-float v1.0.1 [INFO] [stderr] Downloaded piston-viewport v1.0.2 [INFO] [stderr] Downloaded pistoncore-input v1.0.1 [INFO] [stderr] Downloaded pistoncore-window v0.47.1 [INFO] [stderr] Downloaded piston-graphics_api_version v1.0.1 [INFO] [stderr] Downloaded shader_version v0.7.0 [INFO] [stderr] Downloaded js-sys v0.3.58 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.81 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 816766dc1224bc7e16fec6cba6180a0afb558d3f377bd2b831230839e5985a56 [INFO] running `Command { std: "docker" "start" "-a" "816766dc1224bc7e16fec6cba6180a0afb558d3f377bd2b831230839e5985a56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "816766dc1224bc7e16fec6cba6180a0afb558d3f377bd2b831230839e5985a56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "816766dc1224bc7e16fec6cba6180a0afb558d3f377bd2b831230839e5985a56", kill_on_drop: false }` [INFO] [stdout] 816766dc1224bc7e16fec6cba6180a0afb558d3f377bd2b831230839e5985a56 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f30dd87ccc62d70855cf50e411c8440685611cd34833279f0cfd215a83026f9 [INFO] running `Command { std: "docker" "start" "-a" "1f30dd87ccc62d70855cf50e411c8440685611cd34833279f0cfd215a83026f9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling xml-rs v0.8.4 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling wayland-sys v0.28.6 [INFO] [stderr] Checking libloading v0.7.3 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Checking piston-float v1.0.1 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking ttf-parser v0.6.2 [INFO] [stderr] Checking ab_glyph_rasterizer v0.1.5 [INFO] [stderr] Checking dlib v0.5.0 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking piston-viewport v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Checking piston-graphics_api_version v1.0.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Checking miniz_oxide v0.5.3 [INFO] [stderr] Compiling x11-dl v2.19.1 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Checking spin v0.9.3 [INFO] [stderr] Checking deflate v1.0.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Checking nom v7.1.1 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Checking libloading v0.6.7 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Checking weezl v0.1.6 [INFO] [stderr] Checking slab v0.4.6 [INFO] [stderr] Checking cty v0.2.2 [INFO] [stderr] Checking owned_ttf_parser v0.6.0 [INFO] [stderr] Compiling wayland-scanner v0.28.6 [INFO] [stderr] Checking raw-window-handle v0.4.3 [INFO] [stderr] Checking rusttype v0.9.2 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Checking flate2 v1.0.24 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking draw_state v0.8.0 [INFO] [stderr] Checking bit_field v0.10.1 [INFO] [stderr] Checking lebe v0.5.1 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Compiling glutin_egl_sys v0.1.5 [INFO] [stderr] Compiling glutin_glx_sys v0.1.7 [INFO] [stderr] Checking png v0.17.5 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking gfx_core v0.9.2 [INFO] [stderr] Checking shader_version v0.7.0 [INFO] [stderr] Compiling gl v0.13.0 [INFO] [stderr] Checking bytemuck v1.9.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking piston-texture v0.8.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking dirs-sys v0.3.7 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking dirs v4.0.0 [INFO] [stderr] Checking nanorand v0.7.0 [INFO] [stderr] Checking xdg v2.4.1 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking memmap2 v0.1.0 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking andrew v0.3.1 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking raw-window-handle v0.3.4 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Compiling gfx_gl v0.6.1 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Checking vecmath v1.0.0 [INFO] [stderr] Checking interpolation v0.2.0 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking read_color v1.0.0 [INFO] [stderr] Checking gfx v0.18.2 [INFO] [stderr] Checking xcursor v0.3.4 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling wayland-client v0.28.6 [INFO] [stderr] Compiling wayland-protocols v0.28.6 [INFO] [stderr] Checking piston2d-graphics v0.42.0 [INFO] [stderr] Checking piston-shaders_graphics2d v0.4.0 [INFO] [stderr] Checking spin_sleep v1.1.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking os_str_bytes v6.6.1 [INFO] [stderr] Checking is-terminal v0.4.12 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking clap_lex v0.3.3 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking queues v1.1.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking jpeg-decoder v0.2.6 [INFO] [stderr] Checking tiff v0.7.2 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Compiling clap_derive v4.1.9 [INFO] [stderr] Checking calloop v0.6.5 [INFO] [stderr] Checking wayland-commons v0.28.6 [INFO] [stderr] Checking gfx_device_gl v0.16.2 [INFO] [stderr] Checking pin-project v1.0.10 [INFO] [stderr] Checking wayland-cursor v0.28.6 [INFO] [stderr] Checking wayland-egl v0.28.6 [INFO] [stderr] Checking flume v0.10.13 [INFO] [stderr] Checking exr v1.4.2 [INFO] [stderr] Checking clap v4.1.11 [INFO] [stderr] Checking pistoncore-input v1.0.1 [INFO] [stderr] Checking image v0.24.2 [INFO] [stderr] Checking pistoncore-window v0.47.1 [INFO] [stderr] Checking pistoncore-event_loop v0.53.1 [INFO] [stderr] Checking piston v0.53.1 [INFO] [stderr] Checking piston-gfx_texture v0.42.0 [INFO] [stderr] Checking piston2d-opengl_graphics v0.81.0 [INFO] [stderr] Checking piston2d-gfx_graphics v0.76.0 [INFO] [stderr] Checking smithay-client-toolkit v0.12.3 [INFO] [stderr] Checking winit v0.24.0 [INFO] [stderr] Checking glutin v0.26.0 [INFO] [stderr] Checking pistoncore-glutin_window v0.69.0 [INFO] [stderr] Checking pistoncore-glutin_window v0.70.1 [INFO] [stderr] Checking piston_window v0.123.0 [INFO] [stderr] Checking maze_gen v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `obs` [INFO] [stdout] --> src/maze_gen_algos.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let obs = obs.unwrap_or(&fake_obs); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_obs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `obs` [INFO] [stdout] --> src/maze_gen_algos.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let obs = obs.unwrap_or(&fake_obs); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_obs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `off_i` [INFO] [stdout] --> src/maze_gen_algos.rs:52:18 [INFO] [stdout] | [INFO] [stdout] 52 | let (off_i, off_j) = match distr.sample(&mut gen) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_off_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `off_j` [INFO] [stdout] --> src/maze_gen_algos.rs:52:25 [INFO] [stdout] | [INFO] [stdout] 52 | let (off_i, off_j) = match distr.sample(&mut gen) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_off_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `off_i` [INFO] [stdout] --> src/maze_gen_algos.rs:52:18 [INFO] [stdout] | [INFO] [stdout] 52 | let (off_i, off_j) = match distr.sample(&mut gen) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_off_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `off_j` [INFO] [stdout] --> src/maze_gen_algos.rs:52:25 [INFO] [stdout] | [INFO] [stdout] 52 | let (off_i, off_j) = match distr.sample(&mut gen) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_off_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Direction` is never used [INFO] [stdout] --> src/grid.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum Direction { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `GridCoords` is never constructed [INFO] [stdout] --> src/grid.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct GridCoords { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `GridCoords` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Direction` is never used [INFO] [stdout] --> src/grid.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum Direction { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_cell_coords` is never used [INFO] [stdout] --> src/grid.rs:48:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl Grid { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 48 | pub fn get_cell_coords(&self, coord: &GridCoords) -> Option<&Cell> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `GridCoords` is never constructed [INFO] [stdout] --> src/grid.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct GridCoords { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `GridCoords` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `update` is never used [INFO] [stdout] --> src/maze_gen_algos.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait Observer { [INFO] [stdout] | -------- method in this trait [INFO] [stdout] 12 | fn update(&self); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_cell_coords` is never used [INFO] [stdout] --> src/grid.rs:48:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl Grid { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 48 | pub fn get_cell_coords(&self, coord: &GridCoords) -> Option<&Cell> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_rand_kruskal` is never used [INFO] [stdout] --> src/maze_gen_algos.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn create_rand_kruskal() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `update` is never used [INFO] [stdout] --> src/maze_gen_algos.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait Observer { [INFO] [stdout] | -------- method in this trait [INFO] [stdout] 12 | fn update(&self); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_rand_kruskal` is never used [INFO] [stdout] --> src/maze_gen_algos.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn create_rand_kruskal() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.95s [INFO] running `Command { std: "docker" "inspect" "1f30dd87ccc62d70855cf50e411c8440685611cd34833279f0cfd215a83026f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f30dd87ccc62d70855cf50e411c8440685611cd34833279f0cfd215a83026f9", kill_on_drop: false }` [INFO] [stdout] 1f30dd87ccc62d70855cf50e411c8440685611cd34833279f0cfd215a83026f9 [INFO] checking victorlaurentiu/maze_gen against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictorlaurentiu%2Fmaze_gen" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/victorlaurentiu/maze_gen on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/victorlaurentiu/maze_gen [INFO] finished tweaking git repo https://github.com/victorlaurentiu/maze_gen [INFO] tweaked toml for git repo https://github.com/victorlaurentiu/maze_gen written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/victorlaurentiu/maze_gen 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 33f5ef81c9d2d044291788f319b1d1f13146efa45d1989a37e99c2a772dd6b07 [INFO] running `Command { std: "docker" "start" "-a" "33f5ef81c9d2d044291788f319b1d1f13146efa45d1989a37e99c2a772dd6b07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "33f5ef81c9d2d044291788f319b1d1f13146efa45d1989a37e99c2a772dd6b07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33f5ef81c9d2d044291788f319b1d1f13146efa45d1989a37e99c2a772dd6b07", kill_on_drop: false }` [INFO] [stdout] 33f5ef81c9d2d044291788f319b1d1f13146efa45d1989a37e99c2a772dd6b07 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 606951cf4d548365eab5f7d9e3bec340bc87930e4e569479d6c50abed01911fb [INFO] running `Command { std: "docker" "start" "-a" "606951cf4d548365eab5f7d9e3bec340bc87930e4e569479d6c50abed01911fb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling xml-rs v0.8.4 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling wayland-sys v0.28.6 [INFO] [stderr] Checking libloading v0.7.3 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Checking ttf-parser v0.6.2 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking piston-float v1.0.1 [INFO] [stderr] Checking dlib v0.5.0 [INFO] [stderr] Checking ab_glyph_rasterizer v0.1.5 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Checking piston-viewport v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.8/src/sync/parker.rs:366:25 [INFO] [stdout] | [INFO] [stdout] 366 | / match self.state.swap(EMPTY, SeqCst) { [INFO] [stdout] 367 | | NOTIFIED | PARKED => return, [INFO] [stdout] 368 | | n => panic!("inconsistent park_timeout state: {}", n), [INFO] [stdout] 369 | | }; [INFO] [stdout] | |_________________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Checking piston-graphics_api_version v1.0.1 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Checking miniz_oxide v0.5.3 [INFO] [stderr] Compiling x11-dl v2.19.1 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `crossbeam-utils` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.5.3/src/inflate/core.rs:1107:9 [INFO] [stdout] | [INFO] [stdout] 1107 | / match state { [INFO] [stdout] 1108 | | Start => generate_state!(state, 'state_machine, { [INFO] [stdout] 1109 | | l.bit_buf = 0; [INFO] [stdout] 1110 | | l.num_bits = 0; [INFO] [stdout] ... | [INFO] [stdout] 1639 | | _ => break TINFLStatus::Failed, [INFO] [stdout] 1640 | | }; [INFO] [stdout] | |_________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `miniz_oxide` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "606951cf4d548365eab5f7d9e3bec340bc87930e4e569479d6c50abed01911fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "606951cf4d548365eab5f7d9e3bec340bc87930e4e569479d6c50abed01911fb", kill_on_drop: false }` [INFO] [stdout] 606951cf4d548365eab5f7d9e3bec340bc87930e4e569479d6c50abed01911fb