[INFO] fetching crate audio-device 0.1.0-alpha.6...
[INFO] checking audio-device-0.1.0-alpha.6 against master#e29821ff85a2a3000d226f99f62f89464028d5d6 for pr-111505
[INFO] extracting crate audio-device 0.1.0-alpha.6 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate audio-device 0.1.0-alpha.6 on toolchain e29821ff85a2a3000d226f99f62f89464028d5d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate audio-device 0.1.0-alpha.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate audio-device 0.1.0-alpha.6
[INFO] tweaked toml for crates.io crate audio-device 0.1.0-alpha.6 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate audio-device 0.1.0-alpha.6 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" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded audio-core v0.2.0-alpha.3
[INFO] [stderr]   Downloaded audio v0.2.0-alpha.3
[INFO] [stderr]   Downloaded const-sha1 v0.2.0
[INFO] [stderr]   Downloaded windows v0.8.0
[INFO] [stderr]   Downloaded audio-device-windows-sys v0.1.0-alpha.1
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded parking_lot_core v0.8.3
[INFO] [stderr]   Downloaded audio-device-alsa-sys v0.1.0-alpha.1
[INFO] [stderr]   Downloaded pin-project-lite v0.2.6
[INFO] [stderr]   Downloaded ste v0.1.0-alpha.9
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aa31be367675932044b9c2a030183a89bcb907e65e6a13ef959900df02857ec
[INFO] running `Command { std: "docker" "start" "-a" "7aa31be367675932044b9c2a030183a89bcb907e65e6a13ef959900df02857ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa31be367675932044b9c2a030183a89bcb907e65e6a13ef959900df02857ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa31be367675932044b9c2a030183a89bcb907e65e6a13ef959900df02857ec", kill_on_drop: false }`
[INFO] [stdout] 7aa31be367675932044b9c2a030183a89bcb907e65e6a13ef959900df02857ec
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e648b8e2d6975d93417751c01f741f42c289f3e153c21bd8d8816178a9fada9
[INFO] running `Command { std: "docker" "start" "-a" "3e648b8e2d6975d93417751c01f741f42c289f3e153c21bd8d8816178a9fada9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking audio-core v0.2.0-alpha.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking audio v0.2.0-alpha.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking ste v0.1.0-alpha.9
[INFO] [stderr]     Checking audio-device v0.1.0-alpha.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `::std::thread`
[INFO] [stdout]  --> src/loom/mod.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use ::std::thread;
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::std::sync::Arc`
[INFO] [stdout]  --> src/loom/sync.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use ::std::sync::Arc;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::std::thread`
[INFO] [stdout]  --> src/loom/mod.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use ::std::thread;
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::std::sync::Arc`
[INFO] [stdout]  --> src/loom/sync.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) use ::std::sync::Arc;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mutex` is never constructed
[INFO] [stdout]   --> src/loom/sync.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) struct Mutex<T> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `lock` are never used
[INFO] [stdout]   --> src/loom/sync.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl<T> Mutex<T> {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 28 |     pub(crate) fn new(value: T) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub(crate) fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mutex` is never constructed
[INFO] [stdout]   --> src/loom/sync.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) struct Mutex<T> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `lock` are never used
[INFO] [stdout]   --> src/loom/sync.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl<T> Mutex<T> {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 28 |     pub(crate) fn new(value: T) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub(crate) fn lock(&self) -> MutexGuard<'_, T> {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.32s
[INFO] running `Command { std: "docker" "inspect" "3e648b8e2d6975d93417751c01f741f42c289f3e153c21bd8d8816178a9fada9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e648b8e2d6975d93417751c01f741f42c289f3e153c21bd8d8816178a9fada9", kill_on_drop: false }`
[INFO] [stdout] 3e648b8e2d6975d93417751c01f741f42c289f3e153c21bd8d8816178a9fada9