[INFO] crate cpal 0.9.0 is already in cache
[INFO] extracting crate cpal 0.9.0 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/cpal/0.9.0
[INFO] extracting crate cpal 0.9.0 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/cpal/0.9.0
[INFO] validating manifest of cpal-0.9.0 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cpal-0.9.0 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cpal-0.9.0
[INFO] finished frobbing cpal-0.9.0
[INFO] frobbed toml for cpal-0.9.0 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/cpal/0.9.0/Cargo.toml
[INFO] started frobbing cpal-0.9.0
[INFO] finished frobbing cpal-0.9.0
[INFO] frobbed toml for cpal-0.9.0 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/cpal/0.9.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking cpal-0.9.0 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-3/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/cpal/0.9.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ae97de8dc4faf88725b5e3cfa24819ce9dec630cd1fff9c9d197f83b880f0b5f
[INFO] running `"docker" "start" "-a" "ae97de8dc4faf88725b5e3cfa24819ce9dec630cd1fff9c9d197f83b880f0b5f"`
[INFO] [stderr]     Checking cpal v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/alsa/mod.rs:427:40
[INFO] [stderr]     |
[INFO] [stderr] 427 |     fn run_inner(&self, callback: &mut FnMut(StreamId, StreamData)) -> ! {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(StreamId, StreamData)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ffi` is imported redundantly
[INFO] [stderr]    --> src/alsa/mod.rs:913:9
[INFO] [stderr]     |
[INFO] [stderr] 18  | use std::{cmp, ffi, mem, ptr};
[INFO] [stderr]     |                --- the item `ffi` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 913 |     use std::ffi;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:852:25
[INFO] [stderr]     |
[INFO] [stderr] 852 |     let mut sw_params = mem::uninitialized(); // TODO: RAII
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:861:26
[INFO] [stderr]     |
[INFO] [stderr] 861 |         let mut buffer = mem::uninitialized();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:862:26
[INFO] [stderr]     |
[INFO] [stderr] 862 |         let mut period = mem::uninitialized();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/alsa/mod.rs:84:26
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let mut handle = mem::uninitialized();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:159:28
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let mut min_rate = mem::uninitialized();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut max_rate = mem::uninitialized();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:213:32
[INFO] [stderr]     |
[INFO] [stderr] 213 |         let mut min_channels = mem::uninitialized();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:216:32
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let mut max_channels = mem::uninitialized();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:511:42
[INFO] [stderr]     |
[INFO] [stderr] 511 |                         let mut revent = mem::uninitialized();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:650:38
[INFO] [stderr]     |
[INFO] [stderr] 650 |             let mut capture_handle = mem::uninitialized();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:714:39
[INFO] [stderr]     |
[INFO] [stderr] 714 |             let mut playback_handle = mem::uninitialized();
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:886:33
[INFO] [stderr]     |
[INFO] [stderr] 886 |             let mut hw_params = mem::uninitialized();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/alsa/enumerate.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut hints = mem::uninitialized();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/enumerate.rs:105:43
[INFO] [stderr]     |
[INFO] [stderr] 105 |                 let mut playback_handle = mem::uninitialized();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/enumerate.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |                 let mut capture_handle = mem::uninitialized();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/alsa/mod.rs:427:40
[INFO] [stderr]     |
[INFO] [stderr] 427 |     fn run_inner(&self, callback: &mut FnMut(StreamId, StreamData)) -> ! {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(StreamId, StreamData)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ffi` is imported redundantly
[INFO] [stderr]    --> src/alsa/mod.rs:913:9
[INFO] [stderr]     |
[INFO] [stderr] 18  | use std::{cmp, ffi, mem, ptr};
[INFO] [stderr]     |                --- the item `ffi` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 913 |     use std::ffi;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:852:25
[INFO] [stderr]     |
[INFO] [stderr] 852 |     let mut sw_params = mem::uninitialized(); // TODO: RAII
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:861:26
[INFO] [stderr]     |
[INFO] [stderr] 861 |         let mut buffer = mem::uninitialized();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:862:26
[INFO] [stderr]     |
[INFO] [stderr] 862 |         let mut period = mem::uninitialized();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/alsa/mod.rs:84:26
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let mut handle = mem::uninitialized();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:159:28
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let mut min_rate = mem::uninitialized();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let mut max_rate = mem::uninitialized();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:213:32
[INFO] [stderr]     |
[INFO] [stderr] 213 |         let mut min_channels = mem::uninitialized();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:216:32
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let mut max_channels = mem::uninitialized();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:511:42
[INFO] [stderr]     |
[INFO] [stderr] 511 |                         let mut revent = mem::uninitialized();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:650:38
[INFO] [stderr]     |
[INFO] [stderr] 650 |             let mut capture_handle = mem::uninitialized();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:714:39
[INFO] [stderr]     |
[INFO] [stderr] 714 |             let mut playback_handle = mem::uninitialized();
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/mod.rs:886:33
[INFO] [stderr]     |
[INFO] [stderr] 886 |             let mut hw_params = mem::uninitialized();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/alsa/enumerate.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut hints = mem::uninitialized();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/enumerate.rs:105:43
[INFO] [stderr]     |
[INFO] [stderr] 105 |                 let mut playback_handle = mem::uninitialized();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/alsa/enumerate.rs:117:42
[INFO] [stderr]     |
[INFO] [stderr] 117 |                 let mut capture_handle = mem::uninitialized();
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:793:16
[INFO] [stderr]     |
[INFO] [stderr] 793 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_any(pcm_handle, hw_params.0)) {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:796:16
[INFO] [stderr]     |
[INFO] [stderr] 796 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_access(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:816:16
[INFO] [stderr]     |
[INFO] [stderr] 816 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_format(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:821:16
[INFO] [stderr]     |
[INFO] [stderr] 821 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_rate(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:827:16
[INFO] [stderr]     |
[INFO] [stderr] 827 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_channels(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:840:16
[INFO] [stderr]     |
[INFO] [stderr] 840 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params(pcm_handle, hw_params.0)) {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `resume_trigger`
[INFO] [stderr]    --> src/alsa/mod.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |     resume_trigger: Trigger,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/alsa/mod.rs:665:13
[INFO] [stderr]     |
[INFO] [stderr] 665 |             set_hw_params_from_format(capture_handle, &hw_params, format);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/alsa/mod.rs:729:13
[INFO] [stderr]     |
[INFO] [stderr] 729 |             set_hw_params_from_format(playback_handle, &hw_params, format);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:793:16
[INFO] [stderr]     |
[INFO] [stderr] 793 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_any(pcm_handle, hw_params.0)) {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:796:16
[INFO] [stderr]     |
[INFO] [stderr] 796 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_access(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:816:16
[INFO] [stderr]     |
[INFO] [stderr] 816 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_format(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:821:16
[INFO] [stderr]     |
[INFO] [stderr] 821 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_rate(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:827:16
[INFO] [stderr]     |
[INFO] [stderr] 827 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_channels(pcm_handle,
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/alsa/mod.rs:840:16
[INFO] [stderr]     |
[INFO] [stderr] 840 |     if let Err(e) = check_errors(alsa::snd_pcm_hw_params(pcm_handle, hw_params.0)) {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `resume_trigger`
[INFO] [stderr]    --> src/alsa/mod.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |     resume_trigger: Trigger,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/alsa/mod.rs:665:13
[INFO] [stderr]     |
[INFO] [stderr] 665 |             set_hw_params_from_format(capture_handle, &hw_params, format);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/alsa/mod.rs:729:13
[INFO] [stderr]     |
[INFO] [stderr] 729 |             set_hw_params_from_format(playback_handle, &hw_params, format);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `"docker" "inspect" "ae97de8dc4faf88725b5e3cfa24819ce9dec630cd1fff9c9d197f83b880f0b5f"`
[INFO] running `"docker" "rm" "-f" "ae97de8dc4faf88725b5e3cfa24819ce9dec630cd1fff9c9d197f83b880f0b5f"`
[INFO] [stdout] ae97de8dc4faf88725b5e3cfa24819ce9dec630cd1fff9c9d197f83b880f0b5f