[INFO] cloning repository https://github.com/audiodog301/learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/audiodog301/learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudiodog301%2Flearning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudiodog301%2Flearning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 380867b7e3616f7d9f948343c7958ad66bb1951b [INFO] testing audiodog301/learning against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faudiodog301%2Flearning" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/audiodog301/learning on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/audiodog301/learning [INFO] finished tweaking git repo https://github.com/audiodog301/learning [INFO] tweaked toml for git repo https://github.com/audiodog301/learning written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/audiodog301/learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] effa8ca5a4648262c3ac66624c83aa175c8e8adc8fa1d060452c22f91958d45c [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" "effa8ca5a4648262c3ac66624c83aa175c8e8adc8fa1d060452c22f91958d45c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "effa8ca5a4648262c3ac66624c83aa175c8e8adc8fa1d060452c22f91958d45c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "effa8ca5a4648262c3ac66624c83aa175c8e8adc8fa1d060452c22f91958d45c", kill_on_drop: false }` [INFO] [stdout] effa8ca5a4648262c3ac66624c83aa175c8e8adc8fa1d060452c22f91958d45c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 758258b5c1d6d41b2edcd64c9ce48a8388580233d303b2a3626ccf7aba91c6d9 [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" "758258b5c1d6d41b2edcd64c9ce48a8388580233d303b2a3626ccf7aba91c6d9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling syn v1.0.53 [INFO] [stderr] Compiling smallvec v1.5.0 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling ab_glyph_rasterizer v0.1.4 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling futures-core v0.3.8 [INFO] [stderr] Compiling scoped-tls v1.0.0 [INFO] [stderr] Compiling downcast-rs v1.2.0 [INFO] [stderr] Compiling ttf-parser v0.6.2 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling ttf-parser v0.8.3 [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling bit-vec v0.6.2 [INFO] [stderr] Compiling inplace_it v0.3.2 [INFO] [stderr] Compiling iced_core v0.3.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling xi-unicode v0.3.0 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling typed-arena v2.0.1 [INFO] [stderr] Compiling nix v0.15.0 [INFO] [stderr] Compiling winit v0.23.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling svg_fmt v0.4.1 [INFO] [stderr] Compiling cpal v0.13.1 [INFO] [stderr] Compiling anyhow v1.0.34 [INFO] [stderr] Compiling wayland-sys v0.28.2 [INFO] [stderr] Compiling servo-fontconfig-sys v4.0.9 [INFO] [stderr] Compiling x11 v2.18.2 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Compiling alsa-sys v0.3.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling libloading v0.6.5 [INFO] [stderr] Compiling nom v6.0.1 [INFO] [stderr] Compiling glam v0.10.2 [INFO] [stderr] Compiling futures-channel v0.3.8 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling iced_style v0.2.0 [INFO] [stderr] Compiling tracing v0.1.22 [INFO] [stderr] Compiling wgpu-types v0.6.1 [INFO] [stderr] Compiling pathfinder_simd v0.5.0 [INFO] [stderr] Compiling wayland-scanner v0.28.2 [INFO] [stderr] Compiling dlib v0.4.2 [INFO] [stderr] Compiling ash v0.31.0 [INFO] [stderr] Compiling owned_ttf_parser v0.6.0 [INFO] [stderr] Compiling owned_ttf_parser v0.8.0 [INFO] [stderr] Compiling rusttype v0.9.2 [INFO] [stderr] Compiling ab_glyph v0.2.6 [INFO] [stderr] Compiling crossbeam-epoch v0.9.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.0 [INFO] [stderr] Compiling spirv_headers v1.5.0 [INFO] [stderr] Compiling approx v0.4.0 [INFO] [stderr] Compiling ordered-float v1.1.0 [INFO] [stderr] Compiling euclid v0.22.1 [INFO] [stderr] Compiling pathfinder_geometry v0.5.1 [INFO] [stderr] Compiling andrew v0.3.1 [INFO] [stderr] Compiling wayland-client v0.28.2 [INFO] [stderr] Compiling wayland-protocols v0.28.2 [INFO] [stderr] Compiling glyph_brush_layout v0.2.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling jobserver v0.1.21 [INFO] [stderr] Compiling raw-window-handle v0.3.3 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling parking_lot_core v0.8.0 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling dirs-sys v0.3.5 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.36 [INFO] [stderr] Compiling xcursor v0.3.3 [INFO] [stderr] Compiling gfx-hal v0.6.0 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Compiling xcb v0.9.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling mio v0.6.22 [INFO] [stderr] Compiling guillotiere v0.6.0 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling cmake v0.1.45 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling servo-freetype-sys v4.0.5 [INFO] [stderr] Compiling expat-sys v2.1.6 [INFO] [stderr] Compiling twox-hash v1.6.0 [INFO] [stderr] Compiling freetype v0.4.1 [INFO] [stderr] Compiling servo-fontconfig v0.4.0 [INFO] [stderr] Compiling font-kit v0.8.0 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling gfx-backend-empty v0.6.0 [INFO] [stderr] Compiling gfx-memory v0.2.2 [INFO] [stderr] Compiling gfx-descriptor v0.2.0 [INFO] [stderr] Compiling glyph_brush_draw_cache v0.1.3 [INFO] [stderr] Compiling wayland-commons v0.28.2 [INFO] [stderr] Compiling calloop v0.6.5 [INFO] [stderr] Compiling alsa v0.4.3 [INFO] [stderr] Compiling glyph_brush v0.7.0 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Compiling futures-macro v0.3.8 [INFO] [stderr] Compiling thiserror-impl v1.0.22 [INFO] [stderr] Compiling bytemuck_derive v1.0.1 [INFO] [stderr] Compiling zerocopy-derive v0.2.0 [INFO] [stderr] Compiling bytemuck v1.4.1 [INFO] [stderr] Compiling wayland-cursor v0.28.2 [INFO] [stderr] Compiling clipboard_x11 v0.1.0 [INFO] [stderr] Compiling thiserror v1.0.22 [INFO] [stderr] Compiling zerocopy v0.3.0 [INFO] [stderr] Compiling naga v0.2.0 [INFO] [stderr] Compiling pin-project v1.0.2 [INFO] [stderr] Compiling futures-util v0.3.8 [INFO] [stderr] Compiling gfx-backend-vulkan v0.6.5 [INFO] [stderr] Compiling wgpu-core v0.6.5 [INFO] [stderr] Compiling futures-executor v0.3.8 [INFO] [stderr] Compiling futures v0.3.8 [INFO] [stderr] Compiling iced_futures v0.2.0 [INFO] [stderr] Compiling iced_native v0.3.0 [INFO] [stderr] Compiling iced_graphics v0.1.0 [INFO] [stderr] Compiling wgpu v0.6.2 [INFO] [stderr] Compiling wgpu_glyph v0.10.0 [INFO] [stderr] Compiling iced_wgpu v0.3.0 [INFO] [stderr] Compiling smithay-client-toolkit v0.12.0 [INFO] [stderr] Compiling smithay-clipboard v0.6.1 [INFO] [stderr] Compiling clipboard_wayland v0.1.2 [INFO] [stderr] Compiling window_clipboard v0.1.3 [INFO] [stderr] Compiling iced_winit v0.2.0 [INFO] [stderr] Compiling iced v0.2.0 [INFO] [stderr] Compiling learning v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:164:5 [INFO] [stdout] | [INFO] [stdout] 162 | loop {} [INFO] [stdout] | ------- any code following this expression is unreachable [INFO] [stdout] 163 | [INFO] [stdout] 164 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sample_rate` [INFO] [stdout] --> src/main.rs:141:9 [INFO] [stdout] | [INFO] [stdout] 141 | let sample_rate = config.sample_rate.0 as f32; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_frequency` [INFO] [stdout] --> src/main.rs:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | fn set_frequency(&mut self, freq: &f32) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Voice` [INFO] [stdout] --> src/main.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | struct Voice { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `note_on` [INFO] [stdout] --> src/main.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn note_on(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `note_off` [INFO] [stdout] --> src/main.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | fn note_off(&mut self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_freq` [INFO] [stdout] --> src/main.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | fn set_freq(&mut self, freq: &f32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Poly` [INFO] [stdout] --> src/main.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | struct Poly { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `next_sample` [INFO] [stdout] --> src/main.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | fn next_sample(&mut self) -> f32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_note` [INFO] [stdout] --> src/main.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | fn new_note(&mut self, frequency: &f32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4m 47s [INFO] running `Command { std: "docker" "inspect" "758258b5c1d6d41b2edcd64c9ce48a8388580233d303b2a3626ccf7aba91c6d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "758258b5c1d6d41b2edcd64c9ce48a8388580233d303b2a3626ccf7aba91c6d9", kill_on_drop: false }` [INFO] [stdout] 758258b5c1d6d41b2edcd64c9ce48a8388580233d303b2a3626ccf7aba91c6d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] ce23ed02f51e8b7dd3ef21c9a1005e6eb9a6f66f89fa722601e323b13312502f [INFO] running `Command { std: "docker" "start" "-a" "ce23ed02f51e8b7dd3ef21c9a1005e6eb9a6f66f89fa722601e323b13312502f", kill_on_drop: false }` [INFO] [stderr] Compiling learning v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:164:5 [INFO] [stdout] | [INFO] [stdout] 162 | loop {} [INFO] [stdout] | ------- any code following this expression is unreachable [INFO] [stdout] 163 | [INFO] [stdout] 164 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sample_rate` [INFO] [stdout] --> src/main.rs:141:9 [INFO] [stdout] | [INFO] [stdout] 141 | let sample_rate = config.sample_rate.0 as f32; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_frequency` [INFO] [stdout] --> src/main.rs:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | fn set_frequency(&mut self, freq: &f32) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Voice` [INFO] [stdout] --> src/main.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | struct Voice { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `note_on` [INFO] [stdout] --> src/main.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn note_on(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `note_off` [INFO] [stdout] --> src/main.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | fn note_off(&mut self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_freq` [INFO] [stdout] --> src/main.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | fn set_freq(&mut self, freq: &f32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Poly` [INFO] [stdout] --> src/main.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | struct Poly { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `next_sample` [INFO] [stdout] --> src/main.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | fn next_sample(&mut self) -> f32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new_note` [INFO] [stdout] --> src/main.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | fn new_note(&mut self, frequency: &f32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.39s [INFO] running `Command { std: "docker" "inspect" "ce23ed02f51e8b7dd3ef21c9a1005e6eb9a6f66f89fa722601e323b13312502f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce23ed02f51e8b7dd3ef21c9a1005e6eb9a6f66f89fa722601e323b13312502f", kill_on_drop: false }` [INFO] [stdout] ce23ed02f51e8b7dd3ef21c9a1005e6eb9a6f66f89fa722601e323b13312502f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] bde5a9431eea47a0f57d18f6860a8e8dd6390ff8e8bce9fa2bc6c65a9d8bd01b [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" "bde5a9431eea47a0f57d18f6860a8e8dd6390ff8e8bce9fa2bc6c65a9d8bd01b", kill_on_drop: false }` [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:164:5 [INFO] [stderr] | [INFO] [stderr] 162 | loop {} [INFO] [stderr] | ------- any code following this expression is unreachable [INFO] [stderr] 163 | [INFO] [stderr] 164 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sample_rate` [INFO] [stderr] --> src/main.rs:141:9 [INFO] [stderr] | [INFO] [stderr] 141 | let sample_rate = config.sample_rate.0 as f32; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_frequency` [INFO] [stderr] --> src/main.rs:16:6 [INFO] [stderr] | [INFO] [stderr] 16 | fn set_frequency(&mut self, freq: &f32) { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Voice` [INFO] [stderr] --> src/main.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 39 | struct Voice { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `note_on` [INFO] [stderr] --> src/main.rs:46:8 [INFO] [stderr] | [INFO] [stderr] 46 | fn note_on(&mut self) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `note_off` [INFO] [stderr] --> src/main.rs:49:8 [INFO] [stderr] | [INFO] [stderr] 49 | fn note_off(&mut self) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_freq` [INFO] [stderr] --> src/main.rs:52:8 [INFO] [stderr] | [INFO] [stderr] 52 | fn set_freq(&mut self, freq: &f32) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Poly` [INFO] [stderr] --> src/main.rs:58:8 [INFO] [stderr] | [INFO] [stderr] 58 | struct Poly { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `next_sample` [INFO] [stderr] --> src/main.rs:66:8 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_sample(&mut self) -> f32 { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new_note` [INFO] [stderr] --> src/main.rs:73:8 [INFO] [stderr] | [INFO] [stderr] 73 | fn new_note(&mut self, frequency: &f32) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.59s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/learning-87a963fd0b527708 [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "bde5a9431eea47a0f57d18f6860a8e8dd6390ff8e8bce9fa2bc6c65a9d8bd01b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bde5a9431eea47a0f57d18f6860a8e8dd6390ff8e8bce9fa2bc6c65a9d8bd01b", kill_on_drop: false }` [INFO] [stdout] bde5a9431eea47a0f57d18f6860a8e8dd6390ff8e8bce9fa2bc6c65a9d8bd01b