[INFO] cloning repository https://github.com/cincodenada/circularfft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cincodenada/circularfft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcincodenada%2Fcircularfft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcincodenada%2Fcircularfft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e654e0cffb3b244769d99268c14a9d5d73cd3dca
[INFO] checking cincodenada/circularfft against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcincodenada%2Fcircularfft" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cincodenada/circularfft
[INFO] finished tweaking git repo https://github.com/cincodenada/circularfft
[INFO] tweaked toml for git repo https://github.com/cincodenada/circularfft written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cincodenada/circularfft on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cincodenada/circularfft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: patch `druid v0.7.0 (https://github.com/linebender/druid#0a82b127)` was not used in the crate graph
[INFO] [stderr]   |
[INFO] [stderr]   = help: perhaps you meant one of the following:
[INFO] [stderr]           	https://github.com/linebender/druid
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 720801bc52c9600eeb7d1b1d5b6341d550fb10e89b379f3904e65d0bd1ed5ef0
[INFO] running `Command { std: "docker" "start" "-a" "720801bc52c9600eeb7d1b1d5b6341d550fb10e89b379f3904e65d0bd1ed5ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "720801bc52c9600eeb7d1b1d5b6341d550fb10e89b379f3904e65d0bd1ed5ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720801bc52c9600eeb7d1b1d5b6341d550fb10e89b379f3904e65d0bd1ed5ef0", kill_on_drop: false }`
[INFO] [stdout] 720801bc52c9600eeb7d1b1d5b6341d550fb10e89b379f3904e65d0bd1ed5ef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d576909bb835b921b2d9bb4cd1d3349c87c51fe4c2ce0c99bea6d6b5744fa7e4
[INFO] running `Command { std: "docker" "start" "-a" "d576909bb835b921b2d9bb4cd1d3349c87c51fe4c2ce0c99bea6d6b5744fa7e4", kill_on_drop: false }`
[INFO] [stderr] warning: patch `druid v0.7.0 (https://github.com/linebender/druid#0a82b127)` was not used in the crate graph
[INFO] [stderr]   |
[INFO] [stderr]   = help: perhaps you meant one of the following:
[INFO] [stderr]           	https://github.com/linebender/druid
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling pkg-config v0.3.22
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[INFO] [stderr]    Compiling serde v1.0.130
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[INFO] [stderr]    Compiling ucd-trie v0.1.3
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[INFO] [stderr]    Compiling crc32fast v1.2.1
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[INFO] [stderr]     Checking unic-langid v0.9.0
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[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking kurbo v0.8.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking xdg v2.4.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking piet v0.5.0
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[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling gtk v0.14.3
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking type-map v0.4.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]    Compiling druid-shell v0.7.0 (https://github.com/linebender/druid?rev=0a82b127eac325c9c721364a5d81f1bfd931cb13#0a82b127)
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking intl-memoizer v0.5.1
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[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking time v0.3.5
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[INFO] [stderr]     Checking sized-chunks v0.6.5
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[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking keyboard-types v0.6.2
[INFO] [stderr]     Checking self_cell v0.10.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]     Checking spin_sleep v1.0.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking transpose v0.2.1
[INFO] [stderr]     Checking primal-check v0.3.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]     Checking tuple v0.5.1
[INFO] [stderr]     Checking ordered-float v2.8.0
[INFO] [stderr]     Checking piston2d-graphics v0.40.0
[INFO] [stderr]     Checking wav v1.0.0
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking rustfft v6.0.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling druid-derive v0.4.0 (https://github.com/linebender/druid?rev=0a82b127eac325c9c721364a5d81f1bfd931cb13#0a82b127)
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]     Checking fluent-syntax v0.11.0
[INFO] [stderr]    Compiling glib-macros v0.14.1
[INFO] [stderr]    Compiling gtk3-macros v0.14.0
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]    Compiling system-deps v3.2.0
[INFO] [stderr]     Checking fluent-bundle v0.15.2
[INFO] [stderr]    Compiling glib-sys v0.14.0
[INFO] [stderr]    Compiling gobject-sys v0.14.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.14.9
[INFO] [stderr]    Compiling pango-sys v0.14.0
[INFO] [stderr]    Compiling gio-sys v0.14.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.14.0
[INFO] [stderr]    Compiling atk-sys v0.14.0
[INFO] [stderr]    Compiling gdk-sys v0.14.0
[INFO] [stderr]    Compiling pangocairo-sys v0.14.0
[INFO] [stderr]    Compiling gtk-sys v0.14.0
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.73.0
[INFO] [stderr]     Checking glib v0.14.8
[INFO] [stderr]     Checking pistoncore-input v1.0.1
[INFO] [stderr]     Checking pistoncore-window v0.47.1
[INFO] [stderr]     Checking pistoncore-event_loop v0.53.1
[INFO] [stderr]     Checking piston v0.53.1
[INFO] [stderr]     Checking pango v0.14.8
[INFO] [stderr]     Checking cairo-rs v0.14.9
[INFO] [stderr]     Checking atk v0.14.0
[INFO] [stderr]     Checking pangocairo v0.14.0
[INFO] [stderr]     Checking piet-cairo v0.5.0
[INFO] [stderr]     Checking piet-common v0.5.0
[INFO] [stderr]     Checking gdk-pixbuf v0.14.0
[INFO] [stderr]     Checking gdk v0.14.3
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking glutin v0.26.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.69.0
[INFO] [stderr]     Checking piston_window v0.120.0
[INFO] [stderr]     Checking druid v0.7.0 (https://github.com/linebender/druid?rev=0a82b127eac325c9c721364a5d81f1bfd931cb13#0a82b127)
[INFO] [stderr]     Checking druid-widget-nursery v0.1.0 (https://github.com/linebender/druid-widget-nursery#a54437a4)
[INFO] [stderr]     Checking circularfft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `dbgIter` should have a snake case name
[INFO] [stdout]    --> src/bracketed_chunks.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn dbgIter<I, T>(it: I) -> impl Iterator<Item=T> where I: Iterator<Item=T>, T: std::fmt::Debug {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `dbg_iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Lens`
[INFO] [stdout]  --> src/spectrogram.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use druid::{Data, Lens};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BezPath`, `Line`, `PathEl`, and `PathSeg`
[INFO] [stdout]   --> src/main.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | use druid::piet::kurbo::{Line, BezPath, PathSeg, PathEl};
[INFO] [stdout]    |                          ^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:260:17
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 (SlimBin::from_bin(bin, (idx as f64, (idx+1) as f64)))
[INFO] [stdout]     |                 ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 260 -                 (SlimBin::from_bin(bin, (idx as f64, (idx+1) as f64)))
[INFO] [stdout] 260 +                 SlimBin::from_bin(bin, (idx as f64, (idx+1) as f64)) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Lens`
[INFO] [stdout]  --> src/spectrogram.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use druid::{Data, Lens};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BezPath`, `Line`, `PathEl`, and `PathSeg`
[INFO] [stdout]   --> src/main.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | use druid::piet::kurbo::{Line, BezPath, PathSeg, PathEl};
[INFO] [stdout]    |                          ^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:260:17
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 (SlimBin::from_bin(bin, (idx as f64, (idx+1) as f64)))
[INFO] [stdout]     |                 ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 260 -                 (SlimBin::from_bin(bin, (idx as f64, (idx+1) as f64)))
[INFO] [stdout] 260 +                 SlimBin::from_bin(bin, (idx as f64, (idx+1) as f64)) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/spectrogram.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_dim`
[INFO] [stdout]    --> src/main.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let min_dim = std::cmp::min_by(dims.width, dims.height, |a, b| a.partial_cmp(b).unwrap());
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_dim`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mapped_span`
[INFO] [stdout]    --> src/main.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let mapped_span = mapped_range.1 - mapped_range.0;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mapped_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/spectrogram.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OctaveSharder` is never constructed
[INFO] [stdout]   --> src/main.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct OctaveSharder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max` is never read
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Colorer<T> {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 54 |     min: T,
[INFO] [stdout] 55 |     max: T,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]    --> src/main.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 | struct Counter(i32);
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_window` is never used
[INFO] [stdout]    --> src/main.rs:284:4
[INFO] [stdout]     |
[INFO] [stdout] 284 | fn make_window(spectrogram: &spec::Spectrogram, colorer: Colorer<spec::Freq>, spf: Duration) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_circle_plot` is never used
[INFO] [stdout]    --> src/main.rs:319:4
[INFO] [stdout]     |
[INFO] [stdout] 319 | fn make_circle_plot(spectrogram: &spec::Spectrogram) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_rect_plot` is never used
[INFO] [stdout]    --> src/main.rs:369:4
[INFO] [stdout]     |
[INFO] [stdout] 369 | fn make_rect_plot(spectrogram: &spec::Spectrogram) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_color_mesh` is never used
[INFO] [stdout]    --> src/main.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn make_color_mesh(fftcol: &[f32], freqbins: &[f32], onefreq: &[f32], repcount: f32) -> (Vec<Vec<f32>>, Vec<Vec<f32>>, Vec<Vec<f32>...
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dbg_iter` is never used
[INFO] [stdout]    --> src/main.rs:422:4
[INFO] [stdout]     |
[INFO] [stdout] 422 | fn dbg_iter<I, T>(it: I) -> impl Iterator<Item=T> where I: Iterator<Item=T>, T: std::fmt::Debug {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `octave_bins` is never used
[INFO] [stdout]    --> src/main.rs:452:4
[INFO] [stdout]     |
[INFO] [stdout] 452 | fn octave_bins<'a>(col: &'a spec::Column, clip: FreqRange) -> impl Iterator<Item=SlimBin> + 'a {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_wedges` is never used
[INFO] [stdout]    --> src/main.rs:504:4
[INFO] [stdout]     |
[INFO] [stdout] 504 | fn make_wedges<'a>(bins: impl Iterator<Item=SlimBin> + 'a, ymin: f32) -> impl Iterator<Item=(f32, [[f64;2];4])> + 'a {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_rectangles` is never used
[INFO] [stdout]    --> src/main.rs:520:4
[INFO] [stdout]     |
[INFO] [stdout] 520 | fn make_rectangles<'a>(bins: impl Iterator<Item=SlimBin> + 'a) -> impl Iterator<Item=(f32, [[f64;2];4])> + 'a {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]  --> src/bracketed_chunks.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum State {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ShardResult` is never used
[INFO] [stdout]  --> src/bracketed_chunks.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum ShardResult<T, U> {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sharder` is never used
[INFO] [stdout]   --> src/bracketed_chunks.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Sharder<T: ?Sized>: Sized {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BracketedChunks` is never constructed
[INFO] [stdout]   --> src/bracketed_chunks.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct BracketedChunks<I, S>
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bracketed` is never used
[INFO] [stdout]   --> src/bracketed_chunks.rs:85:11
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub trait Bracketed<S>: Iterator
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_mag` is never used
[INFO] [stdout]   --> src/spectrogram.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Bin {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn from_mag(mag: Mag, freq_range: (Freq, Freq)) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `half_size` is never read
[INFO] [stdout]    --> src/spectrogram.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct Spectrogram {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub half_size: usize,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     make_druid_window(spectrogram);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let _ = make_druid_window(spectrogram);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_dim`
[INFO] [stdout]    --> src/main.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let min_dim = std::cmp::min_by(dims.width, dims.height, |a, b| a.partial_cmp(b).unwrap());
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_dim`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mapped_span`
[INFO] [stdout]    --> src/main.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let mapped_span = mapped_range.1 - mapped_range.0;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mapped_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OctaveSharder` is never constructed
[INFO] [stdout]   --> src/main.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct OctaveSharder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max` is never read
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Colorer<T> {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 54 |     min: T,
[INFO] [stdout] 55 |     max: T,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]    --> src/main.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 | struct Counter(i32);
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_window` is never used
[INFO] [stdout]    --> src/main.rs:284:4
[INFO] [stdout]     |
[INFO] [stdout] 284 | fn make_window(spectrogram: &spec::Spectrogram, colorer: Colorer<spec::Freq>, spf: Duration) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_circle_plot` is never used
[INFO] [stdout]    --> src/main.rs:319:4
[INFO] [stdout]     |
[INFO] [stdout] 319 | fn make_circle_plot(spectrogram: &spec::Spectrogram) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_rect_plot` is never used
[INFO] [stdout]    --> src/main.rs:369:4
[INFO] [stdout]     |
[INFO] [stdout] 369 | fn make_rect_plot(spectrogram: &spec::Spectrogram) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_color_mesh` is never used
[INFO] [stdout]    --> src/main.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn make_color_mesh(fftcol: &[f32], freqbins: &[f32], onefreq: &[f32], repcount: f32) -> (Vec<Vec<f32>>, Vec<Vec<f32>>, Vec<Vec<f32>...
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dbg_iter` is never used
[INFO] [stdout]    --> src/main.rs:422:4
[INFO] [stdout]     |
[INFO] [stdout] 422 | fn dbg_iter<I, T>(it: I) -> impl Iterator<Item=T> where I: Iterator<Item=T>, T: std::fmt::Debug {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `octave_bins` is never used
[INFO] [stdout]    --> src/main.rs:452:4
[INFO] [stdout]     |
[INFO] [stdout] 452 | fn octave_bins<'a>(col: &'a spec::Column, clip: FreqRange) -> impl Iterator<Item=SlimBin> + 'a {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_wedges` is never used
[INFO] [stdout]    --> src/main.rs:504:4
[INFO] [stdout]     |
[INFO] [stdout] 504 | fn make_wedges<'a>(bins: impl Iterator<Item=SlimBin> + 'a, ymin: f32) -> impl Iterator<Item=(f32, [[f64;2];4])> + 'a {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_rectangles` is never used
[INFO] [stdout]    --> src/main.rs:520:4
[INFO] [stdout]     |
[INFO] [stdout] 520 | fn make_rectangles<'a>(bins: impl Iterator<Item=SlimBin> + 'a) -> impl Iterator<Item=(f32, [[f64;2];4])> + 'a {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_mag` is never used
[INFO] [stdout]   --> src/spectrogram.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Bin {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn from_mag(mag: Mag, freq_range: (Freq, Freq)) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `half_size` is never read
[INFO] [stdout]    --> src/spectrogram.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct Spectrogram {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub half_size: usize,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     make_druid_window(spectrogram);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let _ = make_druid_window(spectrogram);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dbgIter` should have a snake case name
[INFO] [stdout]    --> src/bracketed_chunks.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn dbgIter<I, T>(it: I) -> impl Iterator<Item=T> where I: Iterator<Item=T>, T: std::fmt::Debug {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `dbg_iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "d576909bb835b921b2d9bb4cd1d3349c87c51fe4c2ce0c99bea6d6b5744fa7e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d576909bb835b921b2d9bb4cd1d3349c87c51fe4c2ce0c99bea6d6b5744fa7e4", kill_on_drop: false }`
[INFO] [stdout] d576909bb835b921b2d9bb4cd1d3349c87c51fe4c2ce0c99bea6d6b5744fa7e4
