[INFO] cloning repository https://github.com/matthewalltop/music-trainer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthewalltop/music-trainer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewalltop%2Fmusic-trainer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewalltop%2Fmusic-trainer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5479ab1d436e7bc35da8c03573cd49cde85e63e5
[INFO] checking matthewalltop/music-trainer against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewalltop%2Fmusic-trainer" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matthewalltop/music-trainer
[INFO] finished tweaking git repo https://github.com/matthewalltop/music-trainer
[INFO] tweaked toml for git repo https://github.com/matthewalltop/music-trainer written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthewalltop/music-trainer on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthewalltop/music-trainer 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v0.2.4
[INFO] [stderr]   Downloaded gio-sys v0.10.0
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[INFO] [stderr]   Downloaded glib v0.10.1
[INFO] [stderr]   Downloaded gio v0.9.0
[INFO] [stderr]   Downloaded gtk v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 323d149df8283a77e81642f77d7c9696d32c665d570253a1eb71bde18ff7f205
[INFO] running `Command { std: "docker" "start" "-a" "323d149df8283a77e81642f77d7c9696d32c665d570253a1eb71bde18ff7f205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "323d149df8283a77e81642f77d7c9696d32c665d570253a1eb71bde18ff7f205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323d149df8283a77e81642f77d7c9696d32c665d570253a1eb71bde18ff7f205", kill_on_drop: false }`
[INFO] [stdout] 323d149df8283a77e81642f77d7c9696d32c665d570253a1eb71bde18ff7f205
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4fb655c2329e675f13346237cac55fec08190cec8ee1e2f6a0dada65708b5f0
[INFO] running `Command { std: "docker" "start" "-a" "e4fb655c2329e675f13346237cac55fec08190cec8ee1e2f6a0dada65708b5f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
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[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling gio v0.9.0
[INFO] [stderr]    Compiling pango v0.9.0
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling itertools v0.9.0
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[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling gdk v0.13.0
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[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]     Checking mp3-duration v0.1.10
[INFO] [stderr]     Checking pin-project v0.4.22
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[INFO] [stderr]    Compiling glib-sys v0.10.0
[INFO] [stderr]    Compiling gobject-sys v0.10.0
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[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling pangocairo-sys v0.11.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking glib v0.10.1
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking music_trainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/application.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::sync::mpsc::{self, Sender};
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/application.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/audio.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let (tx, rx) = mpsc::channel();
[INFO] [stdout]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `control_channel` and `audio_handler` are never read
[INFO] [stdout]   --> src/application.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Application {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 19 |     control_channel: Sender<bool>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 20 |     audio_handler: Option<AudioFileHandler>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Source` is never constructed
[INFO] [stdout]   --> src/audio.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Source<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `set_source` and `get_source` are never used
[INFO] [stdout]   --> src/audio.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Source<File> {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn set_source(audio_source: File) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_source(&self) -> File {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `initialize` and `pause` are never used
[INFO] [stdout]   --> src/audio.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl AudioFileHandler {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 35 |     pub fn initialize() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn pause(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/application.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::sync::mpsc::{self, Sender};
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/application.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/audio.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let (tx, rx) = mpsc::channel();
[INFO] [stdout]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `control_channel` and `audio_handler` are never read
[INFO] [stdout]   --> src/application.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Application {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 19 |     control_channel: Sender<bool>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 20 |     audio_handler: Option<AudioFileHandler>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Source` is never constructed
[INFO] [stdout]   --> src/audio.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Source<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `set_source` and `get_source` are never used
[INFO] [stdout]   --> src/audio.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Source<File> {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn set_source(audio_source: File) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_source(&self) -> File {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `initialize` and `pause` are never used
[INFO] [stdout]   --> src/audio.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl AudioFileHandler {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 35 |     pub fn initialize() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn pause(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.44s
[INFO] running `Command { std: "docker" "inspect" "e4fb655c2329e675f13346237cac55fec08190cec8ee1e2f6a0dada65708b5f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4fb655c2329e675f13346237cac55fec08190cec8ee1e2f6a0dada65708b5f0", kill_on_drop: false }`
[INFO] [stdout] e4fb655c2329e675f13346237cac55fec08190cec8ee1e2f6a0dada65708b5f0
