[INFO] crate waveform 0.3.2 is already in cache
[INFO] extracting crate waveform 0.3.2 into work/ex/clippy-test-run/sources/stable/reg/waveform/0.3.2
[INFO] extracting crate waveform 0.3.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/waveform/0.3.2
[INFO] validating manifest of waveform-0.3.2 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 waveform-0.3.2 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 waveform-0.3.2
[INFO] finished frobbing waveform-0.3.2
[INFO] frobbed toml for waveform-0.3.2 written to work/ex/clippy-test-run/sources/stable/reg/waveform/0.3.2/Cargo.toml
[INFO] started frobbing waveform-0.3.2
[INFO] finished frobbing waveform-0.3.2
[INFO] frobbed toml for waveform-0.3.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/waveform/0.3.2/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 waveform-0.3.2 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/waveform/0.3.2:/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 -Dclippy::into_iter_on_array" "-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] aec51facb16e98d01e33f9fc96c9357303c399c158b337ab178c6f4d038f574a
[INFO] running `"docker" "start" "-a" "aec51facb16e98d01e33f9fc96c9357303c399c158b337ab178c6f4d038f574a"`
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]     Checking waveform v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/binned.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |             data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                    ^^^^^^^^ help: replace it with: `min`
[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/binned.rs:65:46
[INFO] [stderr]    |
[INFO] [stderr] 65 |             data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                              ^^^^^^^^ help: replace it with: `max`
[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/binned.rs:67:43
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let minmax = MinMaxPairSequence { data: data };
[INFO] [stderr]    |                                           ^^^^^^^^^^ help: replace it with: `data`
[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/binned.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |             config: config,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `config`
[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/binned.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |             bin_size: bin_size,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `bin_size`
[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/binned.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             minmax: minmax,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `minmax`
[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/direct.rs:49:43
[INFO] [stderr]    |
[INFO] [stderr] 49 |             minmax.data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                           ^^^^^^^^ help: replace it with: `min`
[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/direct.rs:49:53
[INFO] [stderr]    |
[INFO] [stderr] 49 |             minmax.data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                                     ^^^^^^^^ help: replace it with: `max`
[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/binned.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |             data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                    ^^^^^^^^ help: replace it with: `min`
[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/binned.rs:65:46
[INFO] [stderr]    |
[INFO] [stderr] 65 |             data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                              ^^^^^^^^ help: replace it with: `max`
[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/binned.rs:67:43
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let minmax = MinMaxPairSequence { data: data };
[INFO] [stderr]    |                                           ^^^^^^^^^^ help: replace it with: `data`
[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/binned.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |             config: config,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `config`
[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/binned.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |             bin_size: bin_size,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `bin_size`
[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/binned.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             minmax: minmax,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `minmax`
[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/direct.rs:49:43
[INFO] [stderr]    |
[INFO] [stderr] 49 |             minmax.data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                           ^^^^^^^^ help: replace it with: `min`
[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/direct.rs:49:53
[INFO] [stderr]    |
[INFO] [stderr] 49 |             minmax.data.push(MinMaxPair { min: min, max: max });
[INFO] [stderr]    |                                                     ^^^^^^^^ help: replace it with: `max`
[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: unused variable: `c1_is_scalar`
[INFO] [stderr]   --> src/misc.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut c1_is_scalar = false;
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: consider using `_c1_is_scalar` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2_is_scalar`
[INFO] [stderr]   --> src/misc.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut c2_is_scalar = false;
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: consider using `_c2_is_scalar` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/misc.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut c1_is_scalar = false;
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/misc.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut c2_is_scalar = false;
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c1_is_scalar`
[INFO] [stderr]   --> src/misc.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut c1_is_scalar = false;
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: consider using `_c1_is_scalar` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2_is_scalar`
[INFO] [stderr]   --> src/misc.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut c2_is_scalar = false;
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: consider using `_c2_is_scalar` instead
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/misc.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 | /         match Self::check_color_consistency(background, foreground) {
[INFO] [stderr] 68 | |             Err(e) => return Err(e),
[INFO] [stderr] 69 | |             _ => (),
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = Self::check_color_consistency(background, foreground) { return Err(e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/misc.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut c1_is_scalar = false;
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/misc.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut c2_is_scalar = false;
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/misc.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 | /         match Self::check_color_consistency(background, foreground) {
[INFO] [stderr] 94 | |             Err(e) => return Err(e),
[INFO] [stderr] 95 | |             _ => (),
[INFO] [stderr] 96 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = Self::check_color_consistency(background, foreground) { return Err(e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/misc.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 | /         match self {
[INFO] [stderr] 126 | |             &TimeRange::Seconds(b, e) => (
[INFO] [stderr] 127 | |                 (b * sample_rate) as usize,
[INFO] [stderr] 128 | |                 (e * sample_rate) as usize,
[INFO] [stderr] 129 | |             ),
[INFO] [stderr] 130 | |             &TimeRange::Samples(b, e) => (b, e),
[INFO] [stderr] 131 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 125 |         match *self {
[INFO] [stderr] 126 |             TimeRange::Seconds(b, e) => (
[INFO] [stderr] 127 |                 (b * sample_rate) as usize,
[INFO] [stderr] 128 |                 (e * sample_rate) as usize,
[INFO] [stderr] 129 |             ),
[INFO] [stderr] 130 |             TimeRange::Samples(b, e) => (b, e),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * bin_size`
[INFO] [stderr]   --> src/binned.rs:49:40
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let mut min = samples.data[x * bin_size + 0];
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * bin_size`
[INFO] [stderr]   --> src/binned.rs:50:40
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let mut max = samples.data[x * bin_size + 0];
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/binned.rs:182:21
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 let ref d = self.minmax.data[start_bin_idx];
[INFO] [stderr]     |                 ----^^^^^----------------------------------- help: try: `let d = &self.minmax.data[start_bin_idx];`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * samples_per_pixel`
[INFO] [stderr]   --> src/direct.rs:32:35
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let mut min = samples[x * samples_per_pixel + 0];
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * samples_per_pixel`
[INFO] [stderr]   --> src/direct.rs:33:35
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut max = samples[x * samples_per_pixel + 0];
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |                         img[1 * (y * w + x) + 0] = ba;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(y * w + x)`
[INFO] [stderr]   --> src/direct.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |                         img[1 * (y * w + x) + 0] = ba;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |                         img[1 * (y * w + x) + 0] = fa;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(y * w + x)`
[INFO] [stderr]   --> src/direct.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |                         img[1 * (y * w + x) + 0] = fa;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `4 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:75:29
[INFO] [stderr]    |
[INFO] [stderr] 75 |                         img[4 * (y * w + x) + 0] = br;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `4 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:80:29
[INFO] [stderr]    |
[INFO] [stderr] 80 |                         img[4 * (y * w + x) + 0] = fr;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/multi.rs:54:41
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut bin_sizes: Vec<usize> = self.binned.keys().map(|x| *x).collect();
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.binned.keys().cloned()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/multi.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 55 |         if bin_sizes.len() == 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `bin_sizes.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/misc.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 | /         match Self::check_color_consistency(background, foreground) {
[INFO] [stderr] 68 | |             Err(e) => return Err(e),
[INFO] [stderr] 69 | |             _ => (),
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = Self::check_color_consistency(background, foreground) { return Err(e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/misc.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 | /         match Self::check_color_consistency(background, foreground) {
[INFO] [stderr] 94 | |             Err(e) => return Err(e),
[INFO] [stderr] 95 | |             _ => (),
[INFO] [stderr] 96 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(e) = Self::check_color_consistency(background, foreground) { return Err(e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/misc.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 | /         match self {
[INFO] [stderr] 126 | |             &TimeRange::Seconds(b, e) => (
[INFO] [stderr] 127 | |                 (b * sample_rate) as usize,
[INFO] [stderr] 128 | |                 (e * sample_rate) as usize,
[INFO] [stderr] 129 | |             ),
[INFO] [stderr] 130 | |             &TimeRange::Samples(b, e) => (b, e),
[INFO] [stderr] 131 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 125 |         match *self {
[INFO] [stderr] 126 |             TimeRange::Seconds(b, e) => (
[INFO] [stderr] 127 |                 (b * sample_rate) as usize,
[INFO] [stderr] 128 |                 (e * sample_rate) as usize,
[INFO] [stderr] 129 |             ),
[INFO] [stderr] 130 |             TimeRange::Samples(b, e) => (b, e),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * bin_size`
[INFO] [stderr]   --> src/binned.rs:49:40
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let mut min = samples.data[x * bin_size + 0];
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * bin_size`
[INFO] [stderr]   --> src/binned.rs:50:40
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let mut max = samples.data[x * bin_size + 0];
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/binned.rs:182:21
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 let ref d = self.minmax.data[start_bin_idx];
[INFO] [stderr]     |                 ----^^^^^----------------------------------- help: try: `let d = &self.minmax.data[start_bin_idx];`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/binned.rs:375:27
[INFO] [stderr]     |
[INFO] [stderr] 375 |             samples.push(((t as f64) * 0.01f64 * 2f64 * 3.1415f64).sin());
[INFO] [stderr]     |                           ^^^^^^^^^^ help: try: `f64::from(t)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f64::consts::PI` found. Consider using it directly
[INFO] [stderr]    --> src/binned.rs:375:57
[INFO] [stderr]     |
[INFO] [stderr] 375 |             samples.push(((t as f64) * 0.01f64 * 2f64 * 3.1415f64).sin());
[INFO] [stderr]     |                                                         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `vec!`
[INFO] [stderr]    --> src/binned.rs:407:23
[INFO] [stderr]     |
[INFO] [stderr] 407 |                 data: &vec![0f64; 10],
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^ help: you can use a slice directly: `&[0f64; 10]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_vec)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * samples_per_pixel`
[INFO] [stderr]   --> src/direct.rs:32:35
[INFO] [stderr]    |
[INFO] [stderr] 32 |             let mut min = samples[x * samples_per_pixel + 0];
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `x * samples_per_pixel`
[INFO] [stderr]   --> src/direct.rs:33:35
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut max = samples[x * samples_per_pixel + 0];
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |                         img[1 * (y * w + x) + 0] = ba;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(y * w + x)`
[INFO] [stderr]   --> src/direct.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |                         img[1 * (y * w + x) + 0] = ba;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |                         img[1 * (y * w + x) + 0] = fa;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(y * w + x)`
[INFO] [stderr]   --> src/direct.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |                         img[1 * (y * w + x) + 0] = fa;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `4 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:75:29
[INFO] [stderr]    |
[INFO] [stderr] 75 |                         img[4 * (y * w + x) + 0] = br;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `4 * (y * w + x)`
[INFO] [stderr]   --> src/direct.rs:80:29
[INFO] [stderr]    |
[INFO] [stderr] 80 |                         img[4 * (y * w + x) + 0] = fr;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/multi.rs:54:41
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut bin_sizes: Vec<usize> = self.binned.keys().map(|x| *x).collect();
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `self.binned.keys().cloned()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/multi.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 55 |         if bin_sizes.len() == 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `bin_sizes.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/multi.rs:159:24
[INFO] [stderr]     |
[INFO] [stderr] 159 |             assert_eq!(mwr.binned.get(bs).unwrap().get_bin_size(), *bs);
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&mwr.binned[bs]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/multi.rs:160:24
[INFO] [stderr]     |
[INFO] [stderr] 160 |             assert_eq!(mwr.binned.get(bs).unwrap().get_sample_rate(), sample_rate);
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&mwr.binned[bs]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/multi.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |             assert_eq!(mwr.binned.get(bs).unwrap().get_sample_rate(), sample_rate);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/multi.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |             assert_eq!(mwr.binned.get(bs).unwrap().get_sample_rate(), sample_rate);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error 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: useless use of `vec!`
[INFO] [stderr]    --> src/multi.rs:173:23
[INFO] [stderr]     |
[INFO] [stderr] 173 |                 data: &vec![0f64; 100],
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^ help: you can use a slice directly: `&[0f64; 100]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `vec!`
[INFO] [stderr]    --> src/multi.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |             &vec![10usize], config
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: you can use a slice directly: `&[10usize]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `waveform`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/render.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `waveform`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]   --> examples/binned.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let vec: Vec<u8> =
[INFO] [stderr]    |         ^^^ help: consider using `_vec` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> examples/binned.rs:51:14
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |              ^^^^^^^^^^ help: try: `f64::from(t)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f64::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> examples/binned.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |                                           ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> examples/binned.rs:51:63
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |                                                               ^^^^^^^^^^ help: try: `f64::from(t)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f64::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> examples/binned.rs:51:94
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |                                                                                              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `waveform`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]   --> examples/multi.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |     let mut vec: Vec<u8> =
[INFO] [stderr]    |             ^^^ help: consider using `_vec` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/multi.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |     let mut vec: Vec<u8> =
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> examples/multi.rs:51:14
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |              ^^^^^^^^^^ help: try: `f64::from(t)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f64::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> examples/multi.rs:51:43
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |                                           ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> examples/multi.rs:51:63
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |                                                               ^^^^^^^^^^ help: try: `f64::from(t)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f64::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> examples/multi.rs:51:94
[INFO] [stderr]    |
[INFO] [stderr] 51 |             ((t as f64) / 100f64 * 2f64 * 3.1415f64).sin() * ((t as f64) / 10000f64 * 2f64 * 3.1415f64).sin(),
[INFO] [stderr]    |                                                                                              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `waveform`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "aec51facb16e98d01e33f9fc96c9357303c399c158b337ab178c6f4d038f574a"`
[INFO] running `"docker" "rm" "-f" "aec51facb16e98d01e33f9fc96c9357303c399c158b337ab178c6f4d038f574a"`
[INFO] [stdout] aec51facb16e98d01e33f9fc96c9357303c399c158b337ab178c6f4d038f574a