[INFO] fetching crate rusty_audio 1.4.1...
[INFO] checking rusty_audio-1.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rusty_audio 1.4.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rusty_audio 1.4.1 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 crates.io crate rusty_audio 1.4.1
[INFO] finished tweaking crates.io crate rusty_audio 1.4.1
[INFO] tweaked toml for crates.io crate rusty_audio 1.4.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate rusty_audio 1.4.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.12
[INFO] [stderr]   Downloaded symphonia v0.5.2
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.2
[INFO] [stderr]   Downloaded dasp_sample v0.11.0
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[INFO] [stderr]   Downloaded oboe v0.5.0
[INFO] [stderr]   Downloaded lock_api v0.4.9
[INFO] [stderr]   Downloaded coreaudio-rs v0.11.2
[INFO] [stderr]   Downloaded alsa v0.7.0
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded winnow v0.4.1
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded toml_edit v0.19.8
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded oboe-sys v0.5.0
[INFO] [stderr]   Downloaded cpal v0.15.2
[INFO] [stderr]   Downloaded symphonia-core v0.5.2
[INFO] [stderr]   Downloaded parking_lot_core v0.9.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]   Downloaded rodio v0.17.1
[INFO] [stderr]   Downloaded jni v0.20.0
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded windows v0.46.0
[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] 71df784de6a8d8f3e10e84046b324383f149557f4727a2c8b9d6f3a3e3ff725e
[INFO] running `Command { std: "docker" "start" "-a" "71df784de6a8d8f3e10e84046b324383f149557f4727a2c8b9d6f3a3e3ff725e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71df784de6a8d8f3e10e84046b324383f149557f4727a2c8b9d6f3a3e3ff725e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71df784de6a8d8f3e10e84046b324383f149557f4727a2c8b9d6f3a3e3ff725e", kill_on_drop: false }`
[INFO] [stdout] 71df784de6a8d8f3e10e84046b324383f149557f4727a2c8b9d6f3a3e3ff725e
[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] ea414963a163d6126e7b66cef958a5dd52901e3222dd88adfd59cdf75aa4ef97
[INFO] running `Command { std: "docker" "start" "-a" "ea414963a163d6126e7b66cef958a5dd52901e3222dd88adfd59cdf75aa4ef97", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling autocfg v1.1.0
[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]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[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 symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]     Checking nix v0.24.3
[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 rusty_audio v1.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |             drop(i);
[INFO] [stdout]    |             ^^^^^-^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `i16`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |             drop(i);
[INFO] [stdout]    |             ^^^^^-^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `i16`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `Command { std: "docker" "inspect" "ea414963a163d6126e7b66cef958a5dd52901e3222dd88adfd59cdf75aa4ef97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea414963a163d6126e7b66cef958a5dd52901e3222dd88adfd59cdf75aa4ef97", kill_on_drop: false }`
[INFO] [stdout] ea414963a163d6126e7b66cef958a5dd52901e3222dd88adfd59cdf75aa4ef97