[INFO] cloning repository https://github.com/tecywiz121/earworm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tecywiz121/earworm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftecywiz121%2Fearworm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftecywiz121%2Fearworm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9ff760462f2f1ee153815c66ab438240596fd53
[INFO] checking tecywiz121/earworm against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftecywiz121%2Fearworm" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tecywiz121/earworm on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tecywiz121/earworm
[INFO] finished tweaking git repo https://github.com/tecywiz121/earworm
[INFO] tweaked toml for git repo https://github.com/tecywiz121/earworm written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tecywiz121/earworm 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bfbf9280f5f70a92d3976eadc5a88b29df8e39ab407c9dd841ee2d489bb9b73
[INFO] running `Command { std: "docker" "start" "-a" "0bfbf9280f5f70a92d3976eadc5a88b29df8e39ab407c9dd841ee2d489bb9b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bfbf9280f5f70a92d3976eadc5a88b29df8e39ab407c9dd841ee2d489bb9b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bfbf9280f5f70a92d3976eadc5a88b29df8e39ab407c9dd841ee2d489bb9b73", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3308ee46d3e2e2ab07b48a1b4c3bd7b370b9c80d56b2d8953d74e0dd32c4074f
[INFO] running `Command { std: "docker" "start" "-a" "3308ee46d3e2e2ab07b48a1b4c3bd7b370b9c80d56b2d8953d74e0dd32c4074f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]     Checking cpal v0.8.2
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[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]    Compiling snafu-derive v0.2.3
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling derive_builder_core v0.4.1
[INFO] [stderr]     Checking snafu v0.2.3
[INFO] [stderr]     Checking id3 v0.3.0
[INFO] [stderr]     Checking earworm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `snafu::Snafu`
[INFO] [stdout]  --> src/game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use snafu::Snafu;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `snafu::Snafu`
[INFO] [stdout]  --> src/game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use snafu::Snafu;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]   --> src/game.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]   --> src/game.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]   --> src/media.rs:93:37
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn try_from_file(path: PathBuf, logger: &Logger) -> Result<Self, TagError> {
[INFO] [stdout]    |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]   --> src/media.rs:93:37
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn try_from_file(path: PathBuf, logger: &Logger) -> Result<Self, TagError> {
[INFO] [stdout]    |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `image` is never read
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct QuizButton {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 33 |     button: gtk::Button,
[INFO] [stdout] 34 |     image: gtk::Image,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QuizButton` 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: methods `mime_type` and `data` are never used
[INFO] [stdout]   --> src/media.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Image {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 28 |     pub fn mime_type(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cover` is never used
[INFO] [stdout]   --> src/media.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Track {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn cover(&self) -> Option<&Image> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `image` is never read
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct QuizButton {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 33 |     button: gtk::Button,
[INFO] [stdout] 34 |     image: gtk::Image,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QuizButton` 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: methods `mime_type` and `data` are never used
[INFO] [stdout]   --> src/media.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Image {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 28 |     pub fn mime_type(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cover` is never used
[INFO] [stdout]   --> src/media.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Track {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn cover(&self) -> Option<&Image> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:294:25
[INFO] [stdout]     |
[INFO] [stdout] 294 |                         std::mem::drop(round);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^-----^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        argument has type `&mut Round`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 294 -                         std::mem::drop(round);
[INFO] [stdout] 294 +                         let _ = round;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:294:25
[INFO] [stdout]     |
[INFO] [stdout] 294 |                         std::mem::drop(round);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^-----^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        argument has type `&mut Round`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 294 -                         std::mem::drop(round);
[INFO] [stdout] 294 +                         let _ = round;
[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 17.70s
[INFO] running `Command { std: "docker" "inspect" "3308ee46d3e2e2ab07b48a1b4c3bd7b370b9c80d56b2d8953d74e0dd32c4074f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3308ee46d3e2e2ab07b48a1b4c3bd7b370b9c80d56b2d8953d74e0dd32c4074f", kill_on_drop: false }`
[INFO] [stdout] 3308ee46d3e2e2ab07b48a1b4c3bd7b370b9c80d56b2d8953d74e0dd32c4074f