[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] testing matthewalltop/music-trainer against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewalltop%2Fmusic-trainer" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthewalltop/music-trainer on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e50d852d51b675dbe81002514e7beeed76084cf0febf33e14008b8357cfdad6
[INFO] running `Command { std: "docker" "start" "-a" "2e50d852d51b675dbe81002514e7beeed76084cf0febf33e14008b8357cfdad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e50d852d51b675dbe81002514e7beeed76084cf0febf33e14008b8357cfdad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e50d852d51b675dbe81002514e7beeed76084cf0febf33e14008b8357cfdad6", kill_on_drop: false }`
[INFO] [stdout] 2e50d852d51b675dbe81002514e7beeed76084cf0febf33e14008b8357cfdad6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e913ec9e91f8b0200155116022530dfb9866c6a72ffd73110c1bd51698a08531
[INFO] running `Command { std: "docker" "start" "-a" "e913ec9e91f8b0200155116022530dfb9866c6a72ffd73110c1bd51698a08531", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
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[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
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[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
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[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling glib v0.10.1
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "e913ec9e91f8b0200155116022530dfb9866c6a72ffd73110c1bd51698a08531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e913ec9e91f8b0200155116022530dfb9866c6a72ffd73110c1bd51698a08531", kill_on_drop: false }`
[INFO] [stdout] e913ec9e91f8b0200155116022530dfb9866c6a72ffd73110c1bd51698a08531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0d9579a27da0051583c807b0042ba1fbfb6740064571ccfccf51d802217adf2
[INFO] running `Command { std: "docker" "start" "-a" "b0d9579a27da0051583c807b0042ba1fbfb6740064571ccfccf51d802217adf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "b0d9579a27da0051583c807b0042ba1fbfb6740064571ccfccf51d802217adf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d9579a27da0051583c807b0042ba1fbfb6740064571ccfccf51d802217adf2", kill_on_drop: false }`
[INFO] [stdout] b0d9579a27da0051583c807b0042ba1fbfb6740064571ccfccf51d802217adf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eca6ce8d95a37ce2c90bfff5144b3635d212c5e6d25f632cc871901cb0587802
[INFO] running `Command { std: "docker" "start" "-a" "eca6ce8d95a37ce2c90bfff5144b3635d212c5e6d25f632cc871901cb0587802", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/application.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::sync::mpsc::{self, Sender};
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/application.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/audio.rs:37:18
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let (tx, rx) = mpsc::channel();
[INFO] [stderr]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `control_channel` and `audio_handler` are never read
[INFO] [stderr]   --> src/application.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Application {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 19 |     control_channel: Sender<bool>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 20 |     audio_handler: Option<AudioFileHandler>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Source` is never constructed
[INFO] [stderr]   --> src/audio.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Source<T> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `set_source` and `get_source` are never used
[INFO] [stderr]   --> src/audio.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl Source<File> {
[INFO] [stderr]    | ----------------- associated items in this implementation
[INFO] [stderr] 19 |     pub fn set_source(audio_source: File) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     pub fn get_source(&self) -> File {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `initialize` and `pause` are never used
[INFO] [stderr]   --> src/audio.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl AudioFileHandler {
[INFO] [stderr]    | --------------------- associated items in this implementation
[INFO] [stderr] 35 |     pub fn initialize() -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 |     pub fn pause(&self) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `music_trainer` (bin "music_trainer" test) generated 7 warnings (run `cargo fix --bin "music_trainer" -p music_trainer --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/music_trainer-314521f9765e77d9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eca6ce8d95a37ce2c90bfff5144b3635d212c5e6d25f632cc871901cb0587802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca6ce8d95a37ce2c90bfff5144b3635d212c5e6d25f632cc871901cb0587802", kill_on_drop: false }`
[INFO] [stdout] eca6ce8d95a37ce2c90bfff5144b3635d212c5e6d25f632cc871901cb0587802
