[INFO] crate volume 0.4.0 is already in cache
[INFO] extracting crate volume 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/volume/0.4.0
[INFO] extracting crate volume 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/volume/0.4.0
[INFO] validating manifest of volume-0.4.0 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 volume-0.4.0 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 volume-0.4.0
[INFO] finished frobbing volume-0.4.0
[INFO] frobbed toml for volume-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/volume/0.4.0/Cargo.toml
[INFO] started frobbing volume-0.4.0
[INFO] finished frobbing volume-0.4.0
[INFO] frobbed toml for volume-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/volume/0.4.0/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 volume-0.4.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/volume/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e88779fda598ac2fa5ea4df39e1d8ae6fe00ddd9300d24e30d40822e5c5fd774
[INFO] running `"docker" "start" "-a" "e88779fda598ac2fa5ea4df39e1d8ae6fe00ddd9300d24e30d40822e5c5fd774"`
[INFO] [stderr]     Checking petgraph v0.2.10
[INFO] [stderr]     Checking time_calc v0.11.1
[INFO] [stderr]     Checking daggy v0.4.1
[INFO] [stderr]     Checking dsp-chain v0.13.1
[INFO] [stderr]     Checking volume v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Frame`
[INFO] [stderr]   --> src/lib.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |         use dsp::{Frame, Sample};
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Volume`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | /     pub fn new() -> Volume {
[INFO] [stderr] 21 | |         Volume {
[INFO] [stderr] 22 | |             maybe_prev: None,
[INFO] [stderr] 23 | |             current: 1.0,
[INFO] [stderr] 24 | |             interpolation_ms: 10.0,
[INFO] [stderr] 25 | |         }
[INFO] [stderr] 26 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/lib.rs:64:27
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Some(prev) if prev != self.current && self.interpolation_ms > 0.0 => {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(prev - self.current).abs() < error`
[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/lib.rs:64:27
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Some(prev) if prev != self.current && self.interpolation_ms > 0.0 => {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `idx` is only used to index `buffer`.
[INFO] [stderr]   --> src/lib.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 for idx in 0..interpolation_frames {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 for <item> in buffer.iter_mut().take(interpolation_frames) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `idx` is only used to index `buffer`.
[INFO] [stderr]   --> src/lib.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 for idx in interpolation_frames..buffer.len() {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 for <item> in buffer.iter_mut().skip(interpolation_frames) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `volume`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused import: `Frame`
[INFO] [stderr]   --> src/lib.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |         use dsp::{Frame, Sample};
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Volume`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | /     pub fn new() -> Volume {
[INFO] [stderr] 21 | |         Volume {
[INFO] [stderr] 22 | |             maybe_prev: None,
[INFO] [stderr] 23 | |             current: 1.0,
[INFO] [stderr] 24 | |             interpolation_ms: 10.0,
[INFO] [stderr] 25 | |         }
[INFO] [stderr] 26 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/lib.rs:64:27
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Some(prev) if prev != self.current && self.interpolation_ms > 0.0 => {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(prev - self.current).abs() < error`
[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/lib.rs:64:27
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Some(prev) if prev != self.current && self.interpolation_ms > 0.0 => {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `idx` is only used to index `buffer`.
[INFO] [stderr]   --> src/lib.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 for idx in 0..interpolation_frames {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 for <item> in buffer.iter_mut().take(interpolation_frames) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `idx` is only used to index `buffer`.
[INFO] [stderr]   --> src/lib.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 for idx in interpolation_frames..buffer.len() {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 for <item> in buffer.iter_mut().skip(interpolation_frames) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `volume`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e88779fda598ac2fa5ea4df39e1d8ae6fe00ddd9300d24e30d40822e5c5fd774"`
[INFO] running `"docker" "rm" "-f" "e88779fda598ac2fa5ea4df39e1d8ae6fe00ddd9300d24e30d40822e5c5fd774"`
[INFO] [stdout] e88779fda598ac2fa5ea4df39e1d8ae6fe00ddd9300d24e30d40822e5c5fd774