[INFO] cloning repository https://github.com/colinbdclark/libflock-cpal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colinbdclark/libflock-cpal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinbdclark%2Flibflock-cpal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinbdclark%2Flibflock-cpal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb326a5da4232da27014a883fe7bb000edeead57
[INFO] checking colinbdclark/libflock-cpal against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinbdclark%2Flibflock-cpal" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colinbdclark/libflock-cpal on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colinbdclark/libflock-cpal
[INFO] finished tweaking git repo https://github.com/colinbdclark/libflock-cpal
[INFO] tweaked toml for git repo https://github.com/colinbdclark/libflock-cpal written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/colinbdclark/libflock-cpal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bdaf38f6278a3cc8b0b0665497e108319f0d28e302ac931f16bb1c52fd8e78c
[INFO] running `Command { std: "docker" "start" "-a" "8bdaf38f6278a3cc8b0b0665497e108319f0d28e302ac931f16bb1c52fd8e78c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bdaf38f6278a3cc8b0b0665497e108319f0d28e302ac931f16bb1c52fd8e78c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdaf38f6278a3cc8b0b0665497e108319f0d28e302ac931f16bb1c52fd8e78c", kill_on_drop: false }`
[INFO] [stdout] 8bdaf38f6278a3cc8b0b0665497e108319f0d28e302ac931f16bb1c52fd8e78c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f3ee0e6e7d89def342e590e1817cc40c95ced329e482f07b86c8ceef0f4d529
[INFO] running `Command { std: "docker" "start" "-a" "5f3ee0e6e7d89def342e590e1817cc40c95ced329e482f07b86c8ceef0f4d529", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking jack-sys v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking jack v0.6.6
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]    Compiling merge_derive v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking merge v0.1.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking flocking v0.0.1 (/opt/rustwide/workdir/flocking)
[INFO] [stderr]     Checking flocking_cpal v0.0.1 (/opt/rustwide/workdir/flocking_cpal)
[INFO] [stdout] warning: unused variable: `configs_range`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let configs_range = device.supported_output_configs();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_configs_range`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]   --> flocking_cpal/src/env.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     settings: &EnvironmentSettings
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `host_audio`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         host_audio: &HostAudio,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_host_audio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         settings: &EnvironmentSettings
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `configs_range`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let configs_range = device.supported_output_configs();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_configs_range`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]   --> flocking_cpal/src/env.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     settings: &EnvironmentSettings
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `host_audio`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         host_audio: &HostAudio,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_host_audio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `settings`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         settings: &EnvironmentSettings
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `settings`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     settings: EnvironmentSettings,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `settings`
[INFO] [stdout]    --> flocking_cpal/src/env.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     settings: EnvironmentSettings,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.80s
[INFO] running `Command { std: "docker" "inspect" "5f3ee0e6e7d89def342e590e1817cc40c95ced329e482f07b86c8ceef0f4d529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3ee0e6e7d89def342e590e1817cc40c95ced329e482f07b86c8ceef0f4d529", kill_on_drop: false }`
[INFO] [stdout] 5f3ee0e6e7d89def342e590e1817cc40c95ced329e482f07b86c8ceef0f4d529