[INFO] crate cubeb-core 0.5.3 is already in cache
[INFO] extracting crate cubeb-core 0.5.3 into work/ex/clippy-test-run/sources/stable/reg/cubeb-core/0.5.3
[INFO] extracting crate cubeb-core 0.5.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cubeb-core/0.5.3
[INFO] validating manifest of cubeb-core-0.5.3 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cubeb-core-0.5.3 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cubeb-core-0.5.3
[INFO] finished frobbing cubeb-core-0.5.3
[INFO] frobbed toml for cubeb-core-0.5.3 written to work/ex/clippy-test-run/sources/stable/reg/cubeb-core/0.5.3/Cargo.toml
[INFO] started frobbing cubeb-core-0.5.3
[INFO] finished frobbing cubeb-core-0.5.3
[INFO] frobbed toml for cubeb-core-0.5.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cubeb-core/0.5.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting cubeb-core-0.5.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cubeb-core/0.5.3:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 27bdf6cc772fcef6f191d76365981d5c3474bace8c1c99e846dacad17b7ea13c
[INFO] running `"docker" "start" "-a" "27bdf6cc772fcef6f191d76365981d5c3474bace8c1c99e846dacad17b7ea13c"`
[INFO] [stderr]    Compiling cubeb-sys v0.5.3
[INFO] [stderr]     Checking cubeb-core v0.5.3 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/error.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |         Error { code: code }
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/error.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |         Error { code: code }
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/error.rs:65:17
[INFO] [stderr]    |
[INFO] [stderr] 65 |         Error { code: code }
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/error.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |         Error { code: code }
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `too_many_arguments` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> src/context.rs:79:48
[INFO] [stderr]    |
[INFO] [stderr] 79 |     #[cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))]
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^ help: change it to: `clippy::too_many_arguments`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `match_same_arms` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> src/format.rs:33:48
[INFO] [stderr]    |
[INFO] [stderr] 33 |     #[cfg_attr(feature = "cargo-clippy", allow(match_same_arms))]
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^ help: change it to: `clippy::match_same_arms`
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `too_many_arguments` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> src/context.rs:79:48
[INFO] [stderr]    |
[INFO] [stderr] 79 |     #[cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))]
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^ help: change it to: `clippy::too_many_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `too_many_arguments` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> src/context.rs:79:48
[INFO] [stderr]    |
[INFO] [stderr] 79 |     #[cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))]
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^ help: change it to: `clippy::too_many_arguments`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `match_same_arms` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> src/format.rs:33:48
[INFO] [stderr]    |
[INFO] [stderr] 33 |     #[cfg_attr(feature = "cargo-clippy", allow(match_same_arms))]
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^ help: change it to: `clippy::match_same_arms`
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `too_many_arguments` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> src/context.rs:79:48
[INFO] [stderr]    |
[INFO] [stderr] 79 |     #[cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))]
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^ help: change it to: `clippy::too_many_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/channel.rs:77:25
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn num_channels(&self) -> u32 {
[INFO] [stderr]    |                         ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/context.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 | /             let _ = try_call!(ffi::cubeb_get_max_channel_count(
[INFO] [stderr] 49 | |                 self.as_ptr(),
[INFO] [stderr] 50 | |                 &mut channel_count
[INFO] [stderr] 51 | |             ));
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/context.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | /             let _ = try_call!(ffi::cubeb_get_min_latency(
[INFO] [stderr] 60 | |                 self.as_ptr(),
[INFO] [stderr] 61 | |                 params.as_ptr(),
[INFO] [stderr] 62 | |                 &mut latency
[INFO] [stderr] 63 | |             ));
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/context.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 | /             let _ = try_call!(ffi::cubeb_get_preferred_sample_rate(
[INFO] [stderr] 72 | |                 self.as_ptr(),
[INFO] [stderr] 73 | |                 &mut rate
[INFO] [stderr] 74 | |             ));
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/context.rs:98:9
[INFO] [stderr]     |
[INFO] [stderr] 98  | /         let _ = try_call!(ffi::cubeb_stream_init(
[INFO] [stderr] 99  | |             self.as_ptr(),
[INFO] [stderr] 100 | |             &mut stm,
[INFO] [stderr] 101 | |             stream_name,
[INFO] [stderr] ...   |
[INFO] [stderr] 109 | |             user_ptr
[INFO] [stderr] 110 | |         ));
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/context.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 | /             let _ = try_call!(ffi::cubeb_enumerate_devices(
[INFO] [stderr] 118 | |                 self.as_ptr(),
[INFO] [stderr] 119 | |                 devtype.bits(),
[INFO] [stderr] 120 | |                 &mut coll
[INFO] [stderr] 121 | |             ));
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/context.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 | /         let _ = try_call!(ffi::cubeb_register_device_collection_changed(
[INFO] [stderr] 133 | |             self.as_ptr(),
[INFO] [stderr] 134 | |             devtype.bits(),
[INFO] [stderr] 135 | |             callback,
[INFO] [stderr] 136 | |             user_ptr
[INFO] [stderr] 137 | |         ));
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const device::DeviceRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_device`)
[INFO] [stderr]    --> src/ffi_types.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |                   self as *const _ as *mut _
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/device.rs:59:1
[INFO] [stderr]     |
[INFO] [stderr] 59  | / ffi_type_heap! {
[INFO] [stderr] 60  | |     type CType = ffi::cubeb_device;
[INFO] [stderr] 61  | |     #[derive(Debug)]
[INFO] [stderr] 62  | |     pub struct Device;
[INFO] [stderr] 63  | |     pub struct DeviceRef;
[INFO] [stderr] 64  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::cast_ptr_alignment)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const device::DeviceInfoRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_device_info`)
[INFO] [stderr]    --> src/ffi_types.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |                   self as *const _ as *mut _
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/device.rs:98:1
[INFO] [stderr]     |
[INFO] [stderr] 98  | / ffi_type_stack! {
[INFO] [stderr] 99  | |     type CType = ffi::cubeb_device_info;
[INFO] [stderr] 100 | |     pub struct DeviceInfo;
[INFO] [stderr] 101 | |     pub struct DeviceInfoRef;
[INFO] [stderr] 102 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const device_collection::DeviceCollectionRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_device_collection`)
[INFO] [stderr]   --> src/device_collection.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         self as *const _ as *mut _
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/error.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn code(&self) -> ErrorCode {
[INFO] [stderr]    |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/error.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn raw_code(&self) -> c_int {
[INFO] [stderr]    |                     ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const stream::StreamParamsRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_stream_params`)
[INFO] [stderr]    --> src/ffi_types.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |                   self as *const _ as *mut _
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/stream.rs:57:1
[INFO] [stderr]     |
[INFO] [stderr] 57  | / ffi_type_stack!{
[INFO] [stderr] 58  | |     type CType = ffi::cubeb_stream_params;
[INFO] [stderr] 59  | |     #[derive(Debug)]
[INFO] [stderr] 60  | |     pub struct StreamParams;
[INFO] [stderr] 61  | |     pub struct StreamParamsRef;
[INFO] [stderr] 62  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/stream.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             let _ = try_call!(ffi::cubeb_stream_get_position(self.as_ptr(), &mut position));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/stream.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             let _ = try_call!(ffi::cubeb_stream_get_latency(self.as_ptr(), &mut latency));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/stream.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 | /             let _ = try_call!(ffi::cubeb_stream_get_current_device(
[INFO] [stderr] 165 | |                 self.as_ptr(),
[INFO] [stderr] 166 | |                 &mut device
[INFO] [stderr] 167 | |             ));
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `cubeb-core`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/channel.rs:77:25
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn num_channels(&self) -> u32 {
[INFO] [stderr]    |                         ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/context.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 | /             let _ = try_call!(ffi::cubeb_get_max_channel_count(
[INFO] [stderr] 49 | |                 self.as_ptr(),
[INFO] [stderr] 50 | |                 &mut channel_count
[INFO] [stderr] 51 | |             ));
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/context.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | /             let _ = try_call!(ffi::cubeb_get_min_latency(
[INFO] [stderr] 60 | |                 self.as_ptr(),
[INFO] [stderr] 61 | |                 params.as_ptr(),
[INFO] [stderr] 62 | |                 &mut latency
[INFO] [stderr] 63 | |             ));
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/context.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 | /             let _ = try_call!(ffi::cubeb_get_preferred_sample_rate(
[INFO] [stderr] 72 | |                 self.as_ptr(),
[INFO] [stderr] 73 | |                 &mut rate
[INFO] [stderr] 74 | |             ));
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/context.rs:98:9
[INFO] [stderr]     |
[INFO] [stderr] 98  | /         let _ = try_call!(ffi::cubeb_stream_init(
[INFO] [stderr] 99  | |             self.as_ptr(),
[INFO] [stderr] 100 | |             &mut stm,
[INFO] [stderr] 101 | |             stream_name,
[INFO] [stderr] ...   |
[INFO] [stderr] 109 | |             user_ptr
[INFO] [stderr] 110 | |         ));
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/context.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 | /             let _ = try_call!(ffi::cubeb_enumerate_devices(
[INFO] [stderr] 118 | |                 self.as_ptr(),
[INFO] [stderr] 119 | |                 devtype.bits(),
[INFO] [stderr] 120 | |                 &mut coll
[INFO] [stderr] 121 | |             ));
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/context.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 | /         let _ = try_call!(ffi::cubeb_register_device_collection_changed(
[INFO] [stderr] 133 | |             self.as_ptr(),
[INFO] [stderr] 134 | |             devtype.bits(),
[INFO] [stderr] 135 | |             callback,
[INFO] [stderr] 136 | |             user_ptr
[INFO] [stderr] 137 | |         ));
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const device::DeviceRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_device`)
[INFO] [stderr]    --> src/ffi_types.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |                   self as *const _ as *mut _
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/device.rs:59:1
[INFO] [stderr]     |
[INFO] [stderr] 59  | / ffi_type_heap! {
[INFO] [stderr] 60  | |     type CType = ffi::cubeb_device;
[INFO] [stderr] 61  | |     #[derive(Debug)]
[INFO] [stderr] 62  | |     pub struct Device;
[INFO] [stderr] 63  | |     pub struct DeviceRef;
[INFO] [stderr] 64  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::cast_ptr_alignment)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const device::DeviceInfoRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_device_info`)
[INFO] [stderr]    --> src/ffi_types.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |                   self as *const _ as *mut _
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/device.rs:98:1
[INFO] [stderr]     |
[INFO] [stderr] 98  | / ffi_type_stack! {
[INFO] [stderr] 99  | |     type CType = ffi::cubeb_device_info;
[INFO] [stderr] 100 | |     pub struct DeviceInfo;
[INFO] [stderr] 101 | |     pub struct DeviceInfoRef;
[INFO] [stderr] 102 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const device_collection::DeviceCollectionRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_device_collection`)
[INFO] [stderr]   --> src/device_collection.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         self as *const _ as *mut _
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/error.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn code(&self) -> ErrorCode {
[INFO] [stderr]    |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/error.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn raw_code(&self) -> c_int {
[INFO] [stderr]    |                     ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] error: casting from `*const stream::StreamParamsRef` to a more-strictly-aligned pointer (`*mut cubeb_sys::cubeb_stream_params`)
[INFO] [stderr]    --> src/ffi_types.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |                   self as *const _ as *mut _
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/stream.rs:57:1
[INFO] [stderr]     |
[INFO] [stderr] 57  | / ffi_type_stack!{
[INFO] [stderr] 58  | |     type CType = ffi::cubeb_stream_params;
[INFO] [stderr] 59  | |     #[derive(Debug)]
[INFO] [stderr] 60  | |     pub struct StreamParams;
[INFO] [stderr] 61  | |     pub struct StreamParamsRef;
[INFO] [stderr] 62  | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_ptr_alignment
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/stream.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             let _ = try_call!(ffi::cubeb_stream_get_position(self.as_ptr(), &mut position));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/stream.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             let _ = try_call!(ffi::cubeb_stream_get_latency(self.as_ptr(), &mut latency));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]    --> src/stream.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 | /             let _ = try_call!(ffi::cubeb_stream_get_current_device(
[INFO] [stderr] 165 | |                 self.as_ptr(),
[INFO] [stderr] 166 | |                 &mut device
[INFO] [stderr] 167 | |             ));
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `cubeb-core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "27bdf6cc772fcef6f191d76365981d5c3474bace8c1c99e846dacad17b7ea13c"`
[INFO] running `"docker" "rm" "-f" "27bdf6cc772fcef6f191d76365981d5c3474bace8c1c99e846dacad17b7ea13c"`
[INFO] [stdout] 27bdf6cc772fcef6f191d76365981d5c3474bace8c1c99e846dacad17b7ea13c