[INFO] fetching crate tizol 0.1.0...
[INFO] testing tizol-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate tizol 0.1.0 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate tizol 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tizol 0.1.0
[INFO] finished tweaking crates.io crate tizol 0.1.0
[INFO] tweaked toml for crates.io crate tizol 0.1.0 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] crate crates.io crate tizol 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-92/source/examples/spectrogram.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "rm" "-f" "405ff9665a96ecdf8707ade58c0728f51ad99602d8556946d935411b2bde590e", kill_on_drop: false }`
[INFO] [stdout] 405ff9665a96ecdf8707ade58c0728f51ad99602d8556946d935411b2bde590e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa551ca7c9d8766b6aafce421c90a0aa133ff89cb39dee49321e86b942fbba1b
[INFO] running `Command { std: "docker" "start" "-a" "aa551ca7c9d8766b6aafce421c90a0aa133ff89cb39dee49321e86b942fbba1b", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/spectrogram.rs
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[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.0
[INFO] [stderr]    Compiling prost v0.5.0
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[INFO] [stderr]    Compiling tizol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hodges v1.0.0
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[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stft.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fft: Arc<FFT<T>>,
[INFO] [stdout]     |                  ^^^^^^ help: use `dyn`: `dyn FFT<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `log10_positive`
[INFO] [stdout]   --> src/stft.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn log10_positive<T: Float + Signed + Zero>(value: T) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `WINDOW_TYPES`
[INFO] [stdout]    --> src/stft.rs:134:1
[INFO] [stdout]     |
[INFO] [stdout] 134 | / static WINDOW_TYPES: [WindowType; 5] = [WindowType::Hanning,
[INFO] [stdout] 135 | |                                         WindowType::Hamming,
[INFO] [stdout] 136 | |                                         WindowType::Blackman,
[INFO] [stdout] 137 | |                                         WindowType::Nuttall,
[INFO] [stdout] 138 | |                                         WindowType::None];
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `values`
[INFO] [stdout]    --> src/stft.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn values() -> [WindowType; 5] {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/stft.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 215 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_complex_column`
[INFO] [stdout]    --> src/stft.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn compute_complex_column(&mut self, output: &mut [Complex<T>]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_column`
[INFO] [stdout]    --> src/stft.rs:277:12
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn compute_column(&mut self, output: &mut [T]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/spectrogram.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         img2.save("rust_buf.png");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.92s
[INFO] running `Command { std: "docker" "inspect" "aa551ca7c9d8766b6aafce421c90a0aa133ff89cb39dee49321e86b942fbba1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa551ca7c9d8766b6aafce421c90a0aa133ff89cb39dee49321e86b942fbba1b", kill_on_drop: false }`
[INFO] [stdout] aa551ca7c9d8766b6aafce421c90a0aa133ff89cb39dee49321e86b942fbba1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18a5a87663479c4971edc83cdce2ff105528452b0375b5e63cf6c1569fe7a2c4
[INFO] running `Command { std: "docker" "start" "-a" "18a5a87663479c4971edc83cdce2ff105528452b0375b5e63cf6c1569fe7a2c4", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/spectrogram.rs
[INFO] [stderr]    Compiling tizol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stft.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fft: Arc<FFT<T>>,
[INFO] [stdout]     |                  ^^^^^^ help: use `dyn`: `dyn FFT<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `log10_positive`
[INFO] [stdout]   --> src/stft.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn log10_positive<T: Float + Signed + Zero>(value: T) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `WINDOW_TYPES`
[INFO] [stdout]    --> src/stft.rs:134:1
[INFO] [stdout]     |
[INFO] [stdout] 134 | / static WINDOW_TYPES: [WindowType; 5] = [WindowType::Hanning,
[INFO] [stdout] 135 | |                                         WindowType::Hamming,
[INFO] [stdout] 136 | |                                         WindowType::Blackman,
[INFO] [stdout] 137 | |                                         WindowType::Nuttall,
[INFO] [stdout] 138 | |                                         WindowType::None];
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `values`
[INFO] [stdout]    --> src/stft.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn values() -> [WindowType; 5] {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/stft.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 215 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_complex_column`
[INFO] [stdout]    --> src/stft.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn compute_complex_column(&mut self, output: &mut [Complex<T>]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_column`
[INFO] [stdout]    --> src/stft.rs:277:12
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn compute_column(&mut self, output: &mut [T]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/stft.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fft: Arc<FFT<T>>,
[INFO] [stdout]     |                  ^^^^^^ help: use `dyn`: `dyn FFT<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/spectrogram.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         img2.save("rust_buf.png");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/spectrogram.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         img2.save("rust_buf.png");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `log10_positive`
[INFO] [stdout]   --> src/stft.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn log10_positive<T: Float + Signed + Zero>(value: T) -> T {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `WINDOW_TYPES`
[INFO] [stdout]    --> src/stft.rs:134:1
[INFO] [stdout]     |
[INFO] [stdout] 134 | / static WINDOW_TYPES: [WindowType; 5] = [WindowType::Hanning,
[INFO] [stdout] 135 | |                                         WindowType::Hamming,
[INFO] [stdout] 136 | |                                         WindowType::Blackman,
[INFO] [stdout] 137 | |                                         WindowType::Nuttall,
[INFO] [stdout] 138 | |                                         WindowType::None];
[INFO] [stdout]     | |__________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `values`
[INFO] [stdout]    --> src/stft.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn values() -> [WindowType; 5] {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/stft.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 215 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_complex_column`
[INFO] [stdout]    --> src/stft.rs:252:12
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub fn compute_complex_column(&mut self, output: &mut [Complex<T>]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_column`
[INFO] [stdout]    --> src/stft.rs:277:12
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn compute_column(&mut self, output: &mut [T]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "18a5a87663479c4971edc83cdce2ff105528452b0375b5e63cf6c1569fe7a2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a5a87663479c4971edc83cdce2ff105528452b0375b5e63cf6c1569fe7a2c4", kill_on_drop: false }`
[INFO] [stdout] 18a5a87663479c4971edc83cdce2ff105528452b0375b5e63cf6c1569fe7a2c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a958154adc62b643a24a5a0ad5b505c3c39ac85333d7b4de2cdd7f929fc4f90e
[INFO] running `Command { std: "docker" "start" "-a" "a958154adc62b643a24a5a0ad5b505c3c39ac85333d7b4de2cdd7f929fc4f90e", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/spectrogram.rs
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/stft.rs:151:18
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fft: Arc<FFT<T>>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn FFT<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `log10_positive`
[INFO] [stderr]   --> src/stft.rs:87:8
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub fn log10_positive<T: Float + Signed + Zero>(value: T) -> T {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `WINDOW_TYPES`
[INFO] [stderr]    --> src/stft.rs:134:1
[INFO] [stderr]     |
[INFO] [stderr] 134 | / static WINDOW_TYPES: [WindowType; 5] = [WindowType::Hanning,
[INFO] [stderr] 135 | |                                         WindowType::Hamming,
[INFO] [stderr] 136 | |                                         WindowType::Blackman,
[INFO] [stderr] 137 | |                                         WindowType::Nuttall,
[INFO] [stderr] 138 | |                                         WindowType::None];
[INFO] [stderr]     | |__________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `values`
[INFO] [stderr]    --> src/stft.rs:141:12
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn values() -> [WindowType; 5] {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]    --> src/stft.rs:215:12
[INFO] [stderr]     |
[INFO] [stderr] 215 |     pub fn len(&self) -> usize {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `compute_complex_column`
[INFO] [stderr]    --> src/stft.rs:252:12
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub fn compute_complex_column(&mut self, output: &mut [Complex<T>]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `compute_column`
[INFO] [stderr]    --> src/stft.rs:277:12
[INFO] [stderr]     |
[INFO] [stderr] 277 |     pub fn compute_column(&mut self, output: &mut [T]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/stft.rs:151:18
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fft: Arc<FFT<T>>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn FFT<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `log10_positive`
[INFO] [stderr]   --> src/stft.rs:87:8
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub fn log10_positive<T: Float + Signed + Zero>(value: T) -> T {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `WINDOW_TYPES`
[INFO] [stderr]    --> src/stft.rs:134:1
[INFO] [stderr]     |
[INFO] [stderr] 134 | / static WINDOW_TYPES: [WindowType; 5] = [WindowType::Hanning,
[INFO] [stderr] 135 | |                                         WindowType::Hamming,
[INFO] [stderr] 136 | |                                         WindowType::Blackman,
[INFO] [stderr] 137 | |                                         WindowType::Nuttall,
[INFO] [stderr] 138 | |                                         WindowType::None];
[INFO] [stderr]     | |__________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `values`
[INFO] [stderr]    --> src/stft.rs:141:12
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn values() -> [WindowType; 5] {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]    --> src/stft.rs:215:12
[INFO] [stderr]     |
[INFO] [stderr] 215 |     pub fn len(&self) -> usize {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `compute_complex_column`
[INFO] [stderr]    --> src/stft.rs:252:12
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub fn compute_complex_column(&mut self, output: &mut [Complex<T>]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `compute_column`
[INFO] [stderr]    --> src/stft.rs:277:12
[INFO] [stderr]     |
[INFO] [stderr] 277 |     pub fn compute_column(&mut self, output: &mut [T]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/spectrogram.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         img2.save("rust_buf.png");
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/spectrogram.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         img2.save("rust_buf.png");
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tizol-099160d255d08594)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/spectrogram-917f1d37bec35df9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tizol
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/stft.rs - stft (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/stft.rs - stft (line 12) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `stft`
[INFO] [stdout]  --> src/stft.rs:13:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate stft;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/stft.rs - stft (line 12)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "a958154adc62b643a24a5a0ad5b505c3c39ac85333d7b4de2cdd7f929fc4f90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a958154adc62b643a24a5a0ad5b505c3c39ac85333d7b4de2cdd7f929fc4f90e", kill_on_drop: false }`
[INFO] [stdout] a958154adc62b643a24a5a0ad5b505c3c39ac85333d7b4de2cdd7f929fc4f90e
