[INFO] updating cached repository RobertZ2011/spectralgenesis
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RobertZ2011/spectralgenesis
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RobertZ2011/spectralgenesis" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/RobertZ2011/spectralgenesis"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/RobertZ2011/spectralgenesis'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RobertZ2011/spectralgenesis" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/RobertZ2011/spectralgenesis"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/RobertZ2011/spectralgenesis'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a6701134465a9580ec2a1ed45d5c98a33d64efaf
[INFO] sha for GitHub repo RobertZ2011/spectralgenesis: a6701134465a9580ec2a1ed45d5c98a33d64efaf
[INFO] validating manifest of RobertZ2011/spectralgenesis on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RobertZ2011/spectralgenesis on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing RobertZ2011/spectralgenesis
[INFO] finished frobbing RobertZ2011/spectralgenesis
[INFO] frobbed toml for RobertZ2011/spectralgenesis written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/RobertZ2011/spectralgenesis/Cargo.toml
[INFO] started frobbing RobertZ2011/spectralgenesis
[INFO] finished frobbing RobertZ2011/spectralgenesis
[INFO] frobbed toml for RobertZ2011/spectralgenesis written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/RobertZ2011/spectralgenesis/Cargo.toml
[INFO] crate RobertZ2011/spectralgenesis already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking RobertZ2011/spectralgenesis against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-2/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/RobertZ2011/spectralgenesis:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a34c01a4267257e219b93ed8844c165f64988c6e374bb80195ebde8b7aadc689
[INFO] running `"docker" "start" "-a" "a34c01a4267257e219b93ed8844c165f64988c6e374bb80195ebde8b7aadc689"`
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking rustfft v2.1.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking minimp3 v0.3.0
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking spectralgenesis v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/audio/raw.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn create(path: &Path) -> Result<Box<audio::Decoder>, DecodeError> {
[INFO] [stderr]    |               ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rest`
[INFO] [stderr]   --> src/process.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let (mut data, rest) = get_samples(required_samples, 0, decoder);
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_rest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/process.rs:13:110
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn process_encoder(fft_engine: &Fft, image: &DynamicImage, decoder: &mut Decoder, encoder: &mut Encoder, verbose: bool, strict: bool) {
[INFO] [stderr]    |                                                                                                              ^^^^^^^ help: consider prefixing with an underscore: `_verbose`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `strict`
[INFO] [stderr]   --> src/process.rs:13:125
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn process_encoder(fft_engine: &Fft, image: &DynamicImage, decoder: &mut Decoder, encoder: &mut Encoder, verbose: bool, strict: bool) {
[INFO] [stderr]    |                                                                                                                             ^^^^^^ help: consider prefixing with an underscore: `_strict`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/audio/raw.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn create(path: &Path) -> Result<Box<audio::Decoder>, DecodeError> {
[INFO] [stderr]    |               ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rest`
[INFO] [stderr]   --> src/process.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let (mut data, rest) = get_samples(required_samples, 0, decoder);
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_rest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/process.rs:13:110
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn process_encoder(fft_engine: &Fft, image: &DynamicImage, decoder: &mut Decoder, encoder: &mut Encoder, verbose: bool, strict: bool) {
[INFO] [stderr]    |                                                                                                              ^^^^^^^ help: consider prefixing with an underscore: `_verbose`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `strict`
[INFO] [stderr]   --> src/process.rs:13:125
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn process_encoder(fft_engine: &Fft, image: &DynamicImage, decoder: &mut Decoder, encoder: &mut Encoder, verbose: bool, strict: bool) {
[INFO] [stderr]    |                                                                                                                             ^^^^^^ help: consider prefixing with an underscore: `_strict`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Encoder`
[INFO] [stderr]  --> src/audio/wav.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Encoder {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `open`
[INFO] [stderr]   --> src/audio/wav.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn open(path: &Path, channels: u8, sample_rate: u32) -> Result<Box<audio::Encoder>, DecodeError> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Decoder`
[INFO] [stderr]  --> src/audio/raw.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Decoder {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create`
[INFO] [stderr]   --> src/audio/raw.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn create(path: &Path) -> Result<Box<audio::Decoder>, DecodeError> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Error`
[INFO] [stderr]  --> src/process.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum Error {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 image.save(Path::new(image_out));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/audio/wav.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |                 self.encoder.write_sample((frame.data[j][i] * 32_767.0) as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/audio/raw.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             write!(&mut self.writer, "{}\n", *sample);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Encoder`
[INFO] [stderr]  --> src/audio/wav.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Encoder {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `open`
[INFO] [stderr]   --> src/audio/wav.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn open(path: &Path, channels: u8, sample_rate: u32) -> Result<Box<audio::Encoder>, DecodeError> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Decoder`
[INFO] [stderr]  --> src/audio/raw.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Decoder {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create`
[INFO] [stderr]   --> src/audio/raw.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn create(path: &Path) -> Result<Box<audio::Decoder>, DecodeError> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Error`
[INFO] [stderr]  --> src/process.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum Error {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 image.save(Path::new(image_out));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/audio/wav.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |                 self.encoder.write_sample((frame.data[j][i] * 32_767.0) as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/audio/raw.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             write!(&mut self.writer, "{}\n", *sample);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.35s
[INFO] running `"docker" "inspect" "a34c01a4267257e219b93ed8844c165f64988c6e374bb80195ebde8b7aadc689"`
[INFO] running `"docker" "rm" "-f" "a34c01a4267257e219b93ed8844c165f64988c6e374bb80195ebde8b7aadc689"`
[INFO] [stdout] a34c01a4267257e219b93ed8844c165f64988c6e374bb80195ebde8b7aadc689