[INFO] fetching crate sphinxad 0.1.2...
[INFO] testing sphinxad-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate sphinxad 0.1.2 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate sphinxad 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sphinxad 0.1.2
[INFO] finished tweaking crates.io crate sphinxad 0.1.2
[INFO] tweaked toml for crates.io crate sphinxad 0.1.2 written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16d323490ca2b421abd3ce5a0f40613996bf277b43fd0eae8d882ab68637f564
[INFO] running `Command { std: "docker" "start" "-a" "16d323490ca2b421abd3ce5a0f40613996bf277b43fd0eae8d882ab68637f564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16d323490ca2b421abd3ce5a0f40613996bf277b43fd0eae8d882ab68637f564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16d323490ca2b421abd3ce5a0f40613996bf277b43fd0eae8d882ab68637f564", kill_on_drop: false }`
[INFO] [stdout] 16d323490ca2b421abd3ce5a0f40613996bf277b43fd0eae8d882ab68637f564
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c384eac7fd80038f7cb887471807e0a5caa458605bb467c81b157315b4366722
[INFO] running `Command { std: "docker" "start" "-a" "c384eac7fd80038f7cb887471807e0a5caa458605bb467c81b157315b4366722", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling sphinxad-sys v0.1.3
[INFO] [stderr]    Compiling sphinxad v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn cause(&self) -> Option<&std::error::Error> { None }
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "c384eac7fd80038f7cb887471807e0a5caa458605bb467c81b157315b4366722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c384eac7fd80038f7cb887471807e0a5caa458605bb467c81b157315b4366722", kill_on_drop: false }`
[INFO] [stdout] c384eac7fd80038f7cb887471807e0a5caa458605bb467c81b157315b4366722
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df2f43fa1677bfb25f06a81193f7e368af7dd377af4ab7bf9c4ac821e5db082d
[INFO] running `Command { std: "docker" "start" "-a" "df2f43fa1677bfb25f06a81193f7e368af7dd377af4ab7bf9c4ac821e5db082d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn cause(&self) -> Option<&std::error::Error> { None }
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sphinxad v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn cause(&self) -> Option<&std::error::Error> { None }
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "df2f43fa1677bfb25f06a81193f7e368af7dd377af4ab7bf9c4ac821e5db082d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df2f43fa1677bfb25f06a81193f7e368af7dd377af4ab7bf9c4ac821e5db082d", kill_on_drop: false }`
[INFO] [stdout] df2f43fa1677bfb25f06a81193f7e368af7dd377af4ab7bf9c4ac821e5db082d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa98320cd1ae8f838c9cd805c1d05369ed04bf3219d70ed21b1a88ba8710ae1c
[INFO] running `Command { std: "docker" "start" "-a" "aa98320cd1ae8f838c9cd805c1d05369ed04bf3219d70ed21b1a88ba8710ae1c", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn cause(&self) -> Option<&std::error::Error> { None }
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `sphinxad` (lib) generated 1 warning
[INFO] [stderr] warning: `sphinxad` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sphinxad-e4d313d1929948e4)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sphinxad
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/audio_device.rs - audio_device::AudioDevice::default_with_sps (line 40) ... FAILED
[INFO] [stdout] test src/audio_device.rs - audio_device::AudioDevice::stop_recording (line 122) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/audio_device.rs - audio_device::AudioDevice::default_with_sps (line 40) stdout ----
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]   --> src/audio_device.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 ...
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 ..
[INFO] [stdout]    |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 ..=
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0586]: inclusive range with no end
[INFO] [stdout]   --> src/audio_device.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 ...
[INFO] [stdout]    |                 ^^^ help: use `..` instead
[INFO] [stdout]    |
[INFO] [stdout]    = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AudioDevice`
[INFO] [stdout]  --> src/audio_device.rs:43:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout]   |                ^^^^^^^^^^^ use of undeclared type `AudioDevice`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `buffer` in this scope
[INFO] [stdout]  --> src/audio_device.rs:47:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |     match device.read(&mut buffer[..])? {
[INFO] [stdout]   |                            ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> src/audio_device.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     thread::sleep_ms(100);
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:43:52
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_40_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | use std::thread;
[INFO] [stdout] 4   | |
[INFO] [stdout] 5   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout]     | |                                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 19  | | }
[INFO] [stdout] 20  | | } _doctest_main_src_audio_device_rs_40_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:44:25
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_40_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | use std::thread;
[INFO] [stdout] 4   | |
[INFO] [stdout] 5   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout] 6   | | device.start_recording()?;
[INFO] [stdout]     | |                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 19  | | }
[INFO] [stdout] 20  | | } _doctest_main_src_audio_device_rs_40_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:47:39
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_40_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | use std::thread;
[INFO] [stdout] 4   | |
[INFO] [stdout] 5   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout] ...   |
[INFO] [stdout] 9   | |     match device.read(&mut buffer[..])? {
[INFO] [stdout]     | |                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 19  | | }
[INFO] [stdout] 20  | | } _doctest_main_src_audio_device_rs_40_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433, E0586.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/audio_device.rs - audio_device::AudioDevice::stop_recording (line 122) stdout ----
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]  --> src/audio_device.rs:127:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ...
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ..
[INFO] [stdout]   |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ..=
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0586]: inclusive range with no end
[INFO] [stdout]  --> src/audio_device.rs:127:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ...
[INFO] [stdout]   |     ^^^ help: use `..` instead
[INFO] [stdout]   |
[INFO] [stdout]   = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AudioDevice`
[INFO] [stdout]  --> src/audio_device.rs:123:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout]   |                ^^^^^^^^^^^ use of undeclared type `AudioDevice`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]   --> src/audio_device.rs:132:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | thread::sleep_ms(1000);
[INFO] [stdout]    | ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:123:52
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_122_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout]     | |                                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4   | | device.start_recording()?;
[INFO] [stdout] 5   | |
[INFO] [stdout] ...   |
[INFO] [stdout] 14  | | device.start_recording()?;
[INFO] [stdout] 15  | | } _doctest_main_src_audio_device_rs_122_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_122_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout] 4   | | device.start_recording()?;
[INFO] [stdout]     | |                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5   | |
[INFO] [stdout] ...   |
[INFO] [stdout] 14  | | device.start_recording()?;
[INFO] [stdout] 15  | | } _doctest_main_src_audio_device_rs_122_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:130:24
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_122_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout] 4   | | device.start_recording()?;
[INFO] [stdout] 5   | |
[INFO] [stdout] ...   |
[INFO] [stdout] 10  | | device.stop_recording()?;
[INFO] [stdout]     | |                        ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 14  | | device.start_recording()?;
[INFO] [stdout] 15  | | } _doctest_main_src_audio_device_rs_122_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/audio_device.rs:134:25
[INFO] [stdout]     |
[INFO] [stdout] 2   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_audio_device_rs_122_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 3   | | let mut device=AudioDevice::default_with_sps(44100)?;
[INFO] [stdout] 4   | | device.start_recording()?;
[INFO] [stdout] 5   | |
[INFO] [stdout] ...   |
[INFO] [stdout] 14  | | device.start_recording()?;
[INFO] [stdout]     | |                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 15  | | } _doctest_main_src_audio_device_rs_122_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0586.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/audio_device.rs - audio_device::AudioDevice::default_with_sps (line 40)
[INFO] [stdout]     src/audio_device.rs - audio_device::AudioDevice::stop_recording (line 122)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "aa98320cd1ae8f838c9cd805c1d05369ed04bf3219d70ed21b1a88ba8710ae1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa98320cd1ae8f838c9cd805c1d05369ed04bf3219d70ed21b1a88ba8710ae1c", kill_on_drop: false }`
[INFO] [stdout] aa98320cd1ae8f838c9cd805c1d05369ed04bf3219d70ed21b1a88ba8710ae1c
