[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] testing colinbdclark/libflock-cpal against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolinbdclark%2Flibflock-cpal" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colinbdclark/libflock-cpal on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-2/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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03db98a856e241009d5f2dec501b71688cae963ad0c27083a443e809424ab120
[INFO] running `Command { std: "docker" "start" "-a" "03db98a856e241009d5f2dec501b71688cae963ad0c27083a443e809424ab120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03db98a856e241009d5f2dec501b71688cae963ad0c27083a443e809424ab120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03db98a856e241009d5f2dec501b71688cae963ad0c27083a443e809424ab120", kill_on_drop: false }`
[INFO] [stdout] 03db98a856e241009d5f2dec501b71688cae963ad0c27083a443e809424ab120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9945532d22287213194237d03b952f861d61ec9441558906cac7e767ff518e6b
[INFO] running `Command { std: "docker" "start" "-a" "9945532d22287213194237d03b952f861d61ec9441558906cac7e767ff518e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling libc v0.2.94
[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]    Compiling cpal v0.13.3
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling jack-sys v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling jack v0.6.6
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling alsa v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling merge_derive v0.1.0
[INFO] [stderr]    Compiling merge v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling flocking v0.0.1 (/opt/rustwide/workdir/flocking)
[INFO] [stderr]    Compiling 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: 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 20.36s
[INFO] running `Command { std: "docker" "inspect" "9945532d22287213194237d03b952f861d61ec9441558906cac7e767ff518e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9945532d22287213194237d03b952f861d61ec9441558906cac7e767ff518e6b", kill_on_drop: false }`
[INFO] [stdout] 9945532d22287213194237d03b952f861d61ec9441558906cac7e767ff518e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b7b2855321edeebf702a33ab0c698f2736740e290a25aff30d9678d3c7a2808
[INFO] running `Command { std: "docker" "start" "-a" "9b7b2855321edeebf702a33ab0c698f2736740e290a25aff30d9678d3c7a2808", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flocking v0.0.1 (/opt/rustwide/workdir/flocking)
[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] [stderr]    Compiling flocking_cpal v0.0.1 (/opt/rustwide/workdir/flocking_cpal)
[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: 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/flocking-f3ab137fdaa5f57c)
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/flocking_cpal-034f52b9dc3ab658)
[INFO] running `Command { std: "docker" "inspect" "9b7b2855321edeebf702a33ab0c698f2736740e290a25aff30d9678d3c7a2808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b7b2855321edeebf702a33ab0c698f2736740e290a25aff30d9678d3c7a2808", kill_on_drop: false }`
[INFO] [stdout] 9b7b2855321edeebf702a33ab0c698f2736740e290a25aff30d9678d3c7a2808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9fa4aadb2150b59a9a9abbc0b0ea4bb578f0e3fa0d1dbd795b78967acaa5b619
[INFO] running `Command { std: "docker" "start" "-a" "9fa4aadb2150b59a9a9abbc0b0ea4bb578f0e3fa0d1dbd795b78967acaa5b619", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `configs_range`
[INFO] [stderr]    --> flocking_cpal/src/env.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let configs_range = device.supported_output_configs();
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_configs_range`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `settings`
[INFO] [stderr]   --> flocking_cpal/src/env.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     settings: &EnvironmentSettings
[INFO] [stderr]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `host_audio`
[INFO] [stderr]    --> flocking_cpal/src/env.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         host_audio: &HostAudio,
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_host_audio`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `settings`
[INFO] [stderr]    --> flocking_cpal/src/env.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         settings: &EnvironmentSettings
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_settings`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `settings`
[INFO] [stderr]    --> flocking_cpal/src/env.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     settings: EnvironmentSettings,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `flocking_cpal` (lib) generated 5 warnings
[INFO] [stderr] warning: `flocking_cpal` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flocking-f3ab137fdaa5f57c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test json::tests::test_parse ... ok
[INFO] [stdout] test utils::tests::test_merge ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flocking_cpal-034f52b9dc3ab658)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flocking
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flocking_cpal
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9fa4aadb2150b59a9a9abbc0b0ea4bb578f0e3fa0d1dbd795b78967acaa5b619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa4aadb2150b59a9a9abbc0b0ea4bb578f0e3fa0d1dbd795b78967acaa5b619", kill_on_drop: false }`
[INFO] [stdout] 9fa4aadb2150b59a9a9abbc0b0ea4bb578f0e3fa0d1dbd795b78967acaa5b619