[INFO] crate cubeb-core 0.5.3 is already in cache
[INFO] extracting crate cubeb-core 0.5.3 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/cubeb-core/0.5.3
[INFO] extracting crate cubeb-core 0.5.3 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/cubeb-core/0.5.3
[INFO] validating manifest of cubeb-core-0.5.3 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cubeb-core-0.5.3 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "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/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/cubeb-core/0.5.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cubeb-sys v0.5.4
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cubeb-core-0.5.3 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-5/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2c518795d23583097fe95aa725b4d04082cec1b94d0dfa9b26371a5ac35ff8d3
[INFO] running `"docker" "start" "-a" "2c518795d23583097fe95aa725b4d04082cec1b94d0dfa9b26371a5ac35ff8d3"`
[INFO] [stderr]    Compiling cubeb-sys v0.5.4
[INFO] [stderr]     Checking cubeb-core v0.5.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 |   /// Architecture specific sample type.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 22 | / bitflags! {
[INFO] [stderr] 23 | |     pub struct DeviceFormat: ffi::cubeb_device_fmt {
[INFO] [stderr] 24 | |         const S16LE = ffi::CUBEB_DEVICE_FMT_S16LE;
[INFO] [stderr] 25 | |         const S16BE = ffi::CUBEB_DEVICE_FMT_S16BE;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | / /// Channel type for a `cubeb_stream`. Depending on the backend and platform
[INFO] [stderr] 32 | | /// used, this can control inter-stream interruption, ducking, and volume
[INFO] [stderr] 33 | | /// control.
[INFO] [stderr]    | |____________^
[INFO] [stderr] 34 | / bitflags! {
[INFO] [stderr] 35 | |     pub struct DevicePref: ffi::cubeb_device_pref {
[INFO] [stderr] 36 | |         const NONE = ffi::CUBEB_DEVICE_PREF_NONE;
[INFO] [stderr] 37 | |         const MULTIMEDIA = ffi::CUBEB_DEVICE_PREF_MULTIMEDIA;
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |     }
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | / /// Whether a particular device is an input device (e.g. a microphone), or an
[INFO] [stderr] 45 | | /// output device (e.g. headphones).
[INFO] [stderr]    | |____________________________________^
[INFO] [stderr] 46 | / bitflags! {
[INFO] [stderr] 47 | |     pub struct DeviceType: ffi::cubeb_device_type {
[INFO] [stderr] 48 | |         const UNKNOWN = ffi::CUBEB_DEVICE_TYPE_UNKNOWN as _;
[INFO] [stderr] 49 | |         const INPUT = ffi::CUBEB_DEVICE_TYPE_INPUT as _;
[INFO] [stderr] 50 | |         const OUTPUT = ffi::CUBEB_DEVICE_TYPE_OUTPUT as _;
[INFO] [stderr] 51 | |     }
[INFO] [stderr] 52 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 |   /// Audio device description
[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]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/device.rs:94:1
[INFO] [stderr]     |
[INFO] [stderr] 94  | / /// This structure holds the characteristics of an input or output
[INFO] [stderr] 95  | | /// audio device. It is obtained using `enumerate_devices`, which
[INFO] [stderr] 96  | | /// returns these structures via `device_collection` and must be
[INFO] [stderr] 97  | | /// destroyed via `device_collection_destroy`.
[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]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stream.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 |   /// Miscellaneous stream preferences.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 49 | / bitflags! {
[INFO] [stderr] 50 | |     pub struct StreamPrefs: ffi::cubeb_stream_prefs {
[INFO] [stderr] 51 | |         const NONE = ffi::CUBEB_STREAM_PREF_NONE;
[INFO] [stderr] 52 | |         const LOOPBACK = ffi::CUBEB_STREAM_PREF_LOOPBACK;
[INFO] [stderr] 53 | |     }
[INFO] [stderr] 54 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stream.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 |   /// Stream format initialization parameters.
[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]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 |   /// Architecture specific sample type.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 22 | / bitflags! {
[INFO] [stderr] 23 | |     pub struct DeviceFormat: ffi::cubeb_device_fmt {
[INFO] [stderr] 24 | |         const S16LE = ffi::CUBEB_DEVICE_FMT_S16LE;
[INFO] [stderr] 25 | |         const S16BE = ffi::CUBEB_DEVICE_FMT_S16BE;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | / /// Channel type for a `cubeb_stream`. Depending on the backend and platform
[INFO] [stderr] 32 | | /// used, this can control inter-stream interruption, ducking, and volume
[INFO] [stderr] 33 | | /// control.
[INFO] [stderr]    | |____________^
[INFO] [stderr] 34 | / bitflags! {
[INFO] [stderr] 35 | |     pub struct DevicePref: ffi::cubeb_device_pref {
[INFO] [stderr] 36 | |         const NONE = ffi::CUBEB_DEVICE_PREF_NONE;
[INFO] [stderr] 37 | |         const MULTIMEDIA = ffi::CUBEB_DEVICE_PREF_MULTIMEDIA;
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |     }
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | / /// Whether a particular device is an input device (e.g. a microphone), or an
[INFO] [stderr] 45 | | /// output device (e.g. headphones).
[INFO] [stderr]    | |____________________________________^
[INFO] [stderr] 46 | / bitflags! {
[INFO] [stderr] 47 | |     pub struct DeviceType: ffi::cubeb_device_type {
[INFO] [stderr] 48 | |         const UNKNOWN = ffi::CUBEB_DEVICE_TYPE_UNKNOWN as _;
[INFO] [stderr] 49 | |         const INPUT = ffi::CUBEB_DEVICE_TYPE_INPUT as _;
[INFO] [stderr] 50 | |         const OUTPUT = ffi::CUBEB_DEVICE_TYPE_OUTPUT as _;
[INFO] [stderr] 51 | |     }
[INFO] [stderr] 52 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/device.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 |   /// Audio device description
[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]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/device.rs:94:1
[INFO] [stderr]     |
[INFO] [stderr] 94  | / /// This structure holds the characteristics of an input or output
[INFO] [stderr] 95  | | /// audio device. It is obtained using `enumerate_devices`, which
[INFO] [stderr] 96  | | /// returns these structures via `device_collection` and must be
[INFO] [stderr] 97  | | /// destroyed via `device_collection_destroy`.
[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]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stream.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 |   /// Miscellaneous stream preferences.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 49 | / bitflags! {
[INFO] [stderr] 50 | |     pub struct StreamPrefs: ffi::cubeb_stream_prefs {
[INFO] [stderr] 51 | |         const NONE = ffi::CUBEB_STREAM_PREF_NONE;
[INFO] [stderr] 52 | |         const LOOPBACK = ffi::CUBEB_STREAM_PREF_LOOPBACK;
[INFO] [stderr] 53 | |     }
[INFO] [stderr] 54 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stream.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 |   /// Stream format initialization parameters.
[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]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.88s
[INFO] running `"docker" "inspect" "2c518795d23583097fe95aa725b4d04082cec1b94d0dfa9b26371a5ac35ff8d3"`
[INFO] running `"docker" "rm" "-f" "2c518795d23583097fe95aa725b4d04082cec1b94d0dfa9b26371a5ac35ff8d3"`
[INFO] [stdout] 2c518795d23583097fe95aa725b4d04082cec1b94d0dfa9b26371a5ac35ff8d3