[INFO] cloning repository https://github.com/Iaphetes/Melodia
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Iaphetes/Melodia" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIaphetes%2FMelodia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIaphetes%2FMelodia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8211e28fc2c30e7620b5fd9999c498a6a89cad4
[INFO] checking Iaphetes/Melodia against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIaphetes%2FMelodia" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Iaphetes/Melodia on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Iaphetes/Melodia
[INFO] finished tweaking git repo https://github.com/Iaphetes/Melodia
[INFO] tweaked toml for git repo https://github.com/Iaphetes/Melodia written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Iaphetes/Melodia 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lewton v0.10.2
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.12
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.35
[INFO] [stderr]   Downloaded symphonia v0.5.2
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.85
[INFO] [stderr]   Downloaded coreaudio-rs v0.11.2
[INFO] [stderr]   Downloaded toml_edit v0.19.8
[INFO] [stderr]   Downloaded alsa v0.7.0
[INFO] [stderr]   Downloaded bindgen v0.64.0
[INFO] [stderr]   Downloaded js-sys v0.3.62
[INFO] [stderr]   Downloaded web-sys v0.3.62
[INFO] [stderr]   Downloaded bumpalo v3.12.2
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.85
[INFO] [stderr]   Downloaded symphonia-core v0.5.2
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.85
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.85
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.85
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded ogg v0.8.0
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]   Downloaded rodio v0.17.1
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d10448880acf96a8f28dbeb0687a351e3e0d70696b1a2974fe85463c5e64bda
[INFO] running `Command { std: "docker" "start" "-a" "9d10448880acf96a8f28dbeb0687a351e3e0d70696b1a2974fe85463c5e64bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d10448880acf96a8f28dbeb0687a351e3e0d70696b1a2974fe85463c5e64bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d10448880acf96a8f28dbeb0687a351e3e0d70696b1a2974fe85463c5e64bda", kill_on_drop: false }`
[INFO] [stdout] 9d10448880acf96a8f28dbeb0687a351e3e0d70696b1a2974fe85463c5e64bda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84ea8fcb8c8c6e8a554c324bdefa8e5d0b5d42622dee59c9b1eb05c37fbc562e
[INFO] running `Command { std: "docker" "start" "-a" "84ea8fcb8c8c6e8a554c324bdefa8e5d0b5d42622dee59c9b1eb05c37fbc562e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]     Checking symphonia-core v0.5.2
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking symphonia-metadata v0.5.2
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking alsa v0.7.0
[INFO] [stderr]     Checking symphonia v0.5.2
[INFO] [stderr]     Checking rodio v0.17.1
[INFO] [stderr]     Checking Melodia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     stream_handle.play_raw(source.convert_samples());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = stream_handle.play_raw(source.convert_samples());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     stream_handle.play_raw(source.convert_samples());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = stream_handle.play_raw(source.convert_samples());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "84ea8fcb8c8c6e8a554c324bdefa8e5d0b5d42622dee59c9b1eb05c37fbc562e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ea8fcb8c8c6e8a554c324bdefa8e5d0b5d42622dee59c9b1eb05c37fbc562e", kill_on_drop: false }`
[INFO] [stdout] 84ea8fcb8c8c6e8a554c324bdefa8e5d0b5d42622dee59c9b1eb05c37fbc562e