Dec 01 19:07:49.508 INFO testing donniemattingly/fingerprint against 1.30.1 for beta-1.31-5
Dec 01 19:07:49.508 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 19:07:49.987 INFO [stdout] 1aca1fcc292f3fe72f5251d9a1cfbf45552f0858891305b6d23e3bd61f5b04c5
Dec 01 19:07:49.991 INFO running `"docker" "start" "-a" "1aca1fcc292f3fe72f5251d9a1cfbf45552f0858891305b6d23e3bd61f5b04c5"`
Dec 01 19:07:51.148 INFO [stderr] usermod: no changes
Dec 01 19:07:51.411 INFO [stderr]    Compiling hound v3.3.1
Dec 01 19:07:51.411 INFO [stderr]    Compiling goertzel v0.2.0
Dec 01 19:07:51.411 INFO [stderr]    Compiling sha1 v0.6.0
Dec 01 19:07:51.431 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 01 19:07:51.431 INFO [stderr]    Compiling log v0.4.1
Dec 01 19:07:51.431 INFO [stderr]    Compiling multimap v0.4.0
Dec 01 19:07:51.431 INFO [stderr]    Compiling serde_json v1.0.10
Dec 01 19:07:51.439 INFO [stderr]    Compiling rand v0.3.22
Dec 01 19:07:54.335 INFO [stderr]    Compiling threadpool v1.7.1
Dec 01 19:07:54.527 INFO [stderr]    Compiling num-bigint v0.1.43
Dec 01 19:07:56.487 INFO [stderr]    Compiling rustfft v2.0.0
Dec 01 19:07:56.487 INFO [stderr]    Compiling ordered-float v0.5.0
Dec 01 19:07:56.487 INFO [stderr]    Compiling serde_yaml v0.7.3
Dec 01 19:07:56.923 INFO [stderr]    Compiling rayon-core v1.4.0
Dec 01 19:07:59.543 INFO [stderr]    Compiling nalgebra v0.13.1
Dec 01 19:08:02.044 INFO [stderr]    Compiling serde-value v0.5.1
Dec 01 19:08:05.863 INFO [stderr]    Compiling flate2 v1.0.1
Dec 01 19:08:12.471 INFO [stderr]    Compiling rayon v1.0.0
Dec 01 19:08:12.776 INFO [stderr]    Compiling num-rational v0.1.42
Dec 01 19:08:18.440 INFO [stderr]    Compiling num v0.1.42
Dec 01 19:08:19.876 INFO [stderr]    Compiling nalgebra v0.5.1
Dec 01 19:08:19.878 INFO [stderr]    Compiling chrono v0.4.0
Dec 01 19:08:19.883 INFO [stderr]    Compiling stopwatch v0.0.7
Dec 01 19:08:19.884 INFO [stderr]    Compiling streaming-stats v0.1.28
Dec 01 19:08:30.419 INFO [stderr]    Compiling jpeg-decoder v0.1.14
Dec 01 19:08:33.060 INFO [stderr]    Compiling log4rs v0.8.0
Dec 01 19:08:38.719 INFO [stderr]    Compiling image v0.18.0
Dec 01 19:09:01.008 INFO [stderr]    Compiling apodize v0.2.0
Dec 01 19:09:28.063 INFO [stderr]    Compiling fingerprint v0.1.0 (/source)
Dec 01 19:09:33.366 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 01 19:09:33.366 INFO [stderr]   --> src/main.rs:14:5
Dec 01 19:09:33.366 INFO [stderr]    |
Dec 01 19:09:33.366 INFO [stderr] 14 | use std::collections::HashMap;
Dec 01 19:09:33.366 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.366 INFO [stderr]    |
Dec 01 19:09:33.366 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 01 19:09:33.366 INFO [stderr] 
Dec 01 19:09:33.367 INFO [stderr] warning: unused import: `std::path::PathBuf`
Dec 01 19:09:33.367 INFO [stderr]    --> src/spectrogram.rs:234:5
Dec 01 19:09:33.367 INFO [stderr]     |
Dec 01 19:09:33.367 INFO [stderr] 234 | use std::path::PathBuf;
Dec 01 19:09:33.367 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.367 INFO [stderr] 
Dec 01 19:09:33.367 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 01 19:09:33.367 INFO [stderr]  --> src/hash.rs:5:5
Dec 01 19:09:33.367 INFO [stderr]   |
Dec 01 19:09:33.367 INFO [stderr] 5 | use std::collections::HashSet;
Dec 01 19:09:33.367 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.367 INFO [stderr] 
Dec 01 19:09:33.367 INFO [stderr] warning: unused import: `std::path::PathBuf`
Dec 01 19:09:33.367 INFO [stderr]    --> src/hash.rs:197:5
Dec 01 19:09:33.367 INFO [stderr]     |
Dec 01 19:09:33.367 INFO [stderr] 197 | use std::path::PathBuf;
Dec 01 19:09:33.367 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.367 INFO [stderr] warning: unused import: `self::stopwatch::Stopwatch`
Dec 01 19:09:33.367 INFO [stderr]  --> src/lib.rs:8:5
Dec 01 19:09:33.367 INFO [stderr]   |
Dec 01 19:09:33.367 INFO [stderr] 8 | use self::stopwatch::Stopwatch;
Dec 01 19:09:33.367 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.371 INFO [stderr]   |
Dec 01 19:09:33.371 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 19:09:33.371 INFO [stderr] 
Dec 01 19:09:33.371 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 01 19:09:33.371 INFO [stderr]   --> src/lib.rs:14:5
Dec 01 19:09:33.371 INFO [stderr]    |
Dec 01 19:09:33.371 INFO [stderr] 14 | use std::collections::HashMap;
Dec 01 19:09:33.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.371 INFO [stderr] 
Dec 01 19:09:33.371 INFO [stderr] warning: unused import: `multimap::MultiMap`
Dec 01 19:09:33.371 INFO [stderr]   --> src/lib.rs:18:5
Dec 01 19:09:33.371 INFO [stderr]    |
Dec 01 19:09:33.371 INFO [stderr] 18 | use multimap::MultiMap;
Dec 01 19:09:33.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.371 INFO [stderr] 
Dec 01 19:09:33.372 INFO [stderr] warning: unused import: `std::path::PathBuf`
Dec 01 19:09:33.372 INFO [stderr]    --> src/spectrogram.rs:234:5
Dec 01 19:09:33.372 INFO [stderr]     |
Dec 01 19:09:33.372 INFO [stderr] 234 | use std::path::PathBuf;
Dec 01 19:09:33.372 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.372 INFO [stderr] 
Dec 01 19:09:33.372 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 01 19:09:33.372 INFO [stderr]   --> src/main.rs:81:12
Dec 01 19:09:33.372 INFO [stderr]    |
Dec 01 19:09:33.372 INFO [stderr] 81 |         if (diff != cur) {
Dec 01 19:09:33.372 INFO [stderr]    |            ^^^^^^^^^^^^^ help: remove these parentheses
Dec 01 19:09:33.372 INFO [stderr]    |
Dec 01 19:09:33.372 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 01 19:09:33.372 INFO [stderr] 
Dec 01 19:09:33.372 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 01 19:09:33.372 INFO [stderr]   --> src/main.rs:82:16
Dec 01 19:09:33.372 INFO [stderr]    |
Dec 01 19:09:33.372 INFO [stderr] 82 |             if (cur_count > 10) {
Dec 01 19:09:33.372 INFO [stderr]    |                ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 01 19:09:33.372 INFO [stderr] 
Dec 01 19:09:33.375 INFO [stderr] 
Dec 01 19:09:33.375 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 01 19:09:33.376 INFO [stderr]  --> src/hash.rs:5:5
Dec 01 19:09:33.376 INFO [stderr]   |
Dec 01 19:09:33.376 INFO [stderr] 5 | use std::collections::HashSet;
Dec 01 19:09:33.376 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.376 INFO [stderr] 
Dec 01 19:09:33.378 INFO [stderr] warning: unused import: `std::path::PathBuf`
Dec 01 19:09:33.378 INFO [stderr]    --> src/hash.rs:197:5
Dec 01 19:09:33.378 INFO [stderr]     |
Dec 01 19:09:33.379 INFO [stderr] 197 | use std::path::PathBuf;
Dec 01 19:09:33.379 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 01 19:09:33.379 INFO [stderr] 
Dec 01 19:09:33.731 INFO [stderr] warning: unused variable: `peaks_len`
Dec 01 19:09:33.731 INFO [stderr]    --> src/hash.rs:116:9
Dec 01 19:09:33.731 INFO [stderr]     |
Dec 01 19:09:33.731 INFO [stderr] 116 |     let peaks_len = peaks.len();
Dec 01 19:09:33.731 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_peaks_len` instead
Dec 01 19:09:33.731 INFO [stderr]     |
Dec 01 19:09:33.731 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 19:09:33.731 INFO [stderr] 
Dec 01 19:09:33.731 INFO [stderr] warning: unused variable: `peak`
Dec 01 19:09:33.731 INFO [stderr]    --> src/hash.rs:126:13
Dec 01 19:09:33.731 INFO [stderr]     |
Dec 01 19:09:33.731 INFO [stderr] 126 |     for (i, peak) in peaks.iter().enumerate() {
Dec 01 19:09:33.731 INFO [stderr]     |             ^^^^ help: consider using `_peak` instead
Dec 01 19:09:33.731 INFO [stderr] 
Dec 01 19:09:33.731 INFO [stderr] warning: unused variable: `y`
Dec 01 19:09:33.731 INFO [stderr]    --> src/hash.rs:162:9
Dec 01 19:09:33.731 INFO [stderr]     |
Dec 01 19:09:33.731 INFO [stderr] 162 |     let y = rand::random::<f64>();
Dec 01 19:09:33.731 INFO [stderr]     |         ^ help: consider using `_y` instead
Dec 01 19:09:33.731 INFO [stderr] 
Dec 01 19:09:33.731 INFO [stderr] warning: unused variable: `path`
Dec 01 19:09:33.731 INFO [stderr]   --> src/lib.rs:53:39
Dec 01 19:09:33.731 INFO [stderr]    |
Dec 01 19:09:33.731 INFO [stderr] 53 | pub extern "C" fn rust_compute_hashes(path: *const c_char) -> int32_t {
Dec 01 19:09:33.731 INFO [stderr]    |                                       ^^^^ help: consider using `_path` instead
Dec 01 19:09:33.731 INFO [stderr] 
Dec 01 19:09:33.747 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.747 INFO [stderr]   --> src/spectrogram.rs:62:13
Dec 01 19:09:33.747 INFO [stderr]    |
Dec 01 19:09:33.747 INFO [stderr] 62 |         let mut sw = Stopwatch::start_new();
Dec 01 19:09:33.747 INFO [stderr]    |             ----^^
Dec 01 19:09:33.747 INFO [stderr]    |             |
Dec 01 19:09:33.747 INFO [stderr]    |             help: remove this `mut`
Dec 01 19:09:33.747 INFO [stderr]    |
Dec 01 19:09:33.747 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 19:09:33.747 INFO [stderr] 
Dec 01 19:09:33.754 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.754 INFO [stderr]    --> src/spectrogram.rs:109:9
Dec 01 19:09:33.754 INFO [stderr]     |
Dec 01 19:09:33.754 INFO [stderr] 109 |     let mut new_spec = spectrum.split_off(half_index);
Dec 01 19:09:33.754 INFO [stderr]     |         ----^^^^^^^^
Dec 01 19:09:33.754 INFO [stderr]     |         |
Dec 01 19:09:33.754 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:33.754 INFO [stderr] 
Dec 01 19:09:33.768 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.768 INFO [stderr]    --> src/spectrogram.rs:183:9
Dec 01 19:09:33.768 INFO [stderr]     |
Dec 01 19:09:33.768 INFO [stderr] 183 |     let mut raw: Vec<Vec<f32>> = vec![Vec::new(); num_chunks - 1 as usize];
Dec 01 19:09:33.768 INFO [stderr]     |         ----^^^
Dec 01 19:09:33.768 INFO [stderr]     |         |
Dec 01 19:09:33.768 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:33.768 INFO [stderr] 
Dec 01 19:09:33.768 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.768 INFO [stderr]    --> src/spectrogram.rs:184:9
Dec 01 19:09:33.768 INFO [stderr]     |
Dec 01 19:09:33.768 INFO [stderr] 184 |     let mut output: Mutex<Vec<Vec<f32>>> = Mutex::new(raw);
Dec 01 19:09:33.768 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:33.768 INFO [stderr]     |         |
Dec 01 19:09:33.768 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:33.768 INFO [stderr] 
Dec 01 19:09:33.781 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.781 INFO [stderr]   --> src/hash.rs:61:9
Dec 01 19:09:33.781 INFO [stderr]    |
Dec 01 19:09:33.781 INFO [stderr] 61 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:33.781 INFO [stderr]    |         ----^^
Dec 01 19:09:33.781 INFO [stderr]    |         |
Dec 01 19:09:33.781 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:33.781 INFO [stderr] 
Dec 01 19:09:33.786 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.786 INFO [stderr]    --> src/hash.rs:113:9
Dec 01 19:09:33.786 INFO [stderr]     |
Dec 01 19:09:33.786 INFO [stderr] 113 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:33.787 INFO [stderr]     |         ----^^
Dec 01 19:09:33.787 INFO [stderr]     |         |
Dec 01 19:09:33.787 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:33.787 INFO [stderr] 
Dec 01 19:09:33.787 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.787 INFO [stderr]    --> src/hash.rs:119:9
Dec 01 19:09:33.787 INFO [stderr]     |
Dec 01 19:09:33.787 INFO [stderr] 119 |     let mut output: Mutex<Vec<PeakHash>> = Mutex::new(vec![]);
Dec 01 19:09:33.787 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:33.787 INFO [stderr]     |         |
Dec 01 19:09:33.787 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:33.787 INFO [stderr] 
Dec 01 19:09:33.791 INFO [stderr] warning: unnecessary `unsafe` block
Dec 01 19:09:33.791 INFO [stderr]   --> src/lib.rs:69:5
Dec 01 19:09:33.791 INFO [stderr]    |
Dec 01 19:09:33.791 INFO [stderr] 69 |     unsafe { transformed[0] }
Dec 01 19:09:33.791 INFO [stderr]    |     ^^^^^^ unnecessary `unsafe` block
Dec 01 19:09:33.791 INFO [stderr]    |
Dec 01 19:09:33.791 INFO [stderr]    = note: #[warn(unused_unsafe)] on by default
Dec 01 19:09:33.791 INFO [stderr] 
Dec 01 19:09:33.945 INFO [stderr] warning: unused variable: `peaks_len`
Dec 01 19:09:33.945 INFO [stderr]    --> src/hash.rs:116:9
Dec 01 19:09:33.945 INFO [stderr]     |
Dec 01 19:09:33.945 INFO [stderr] 116 |     let peaks_len = peaks.len();
Dec 01 19:09:33.945 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_peaks_len` instead
Dec 01 19:09:33.945 INFO [stderr]     |
Dec 01 19:09:33.945 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 19:09:33.945 INFO [stderr] 
Dec 01 19:09:33.945 INFO [stderr] warning: unused variable: `peak`
Dec 01 19:09:33.945 INFO [stderr]    --> src/hash.rs:126:13
Dec 01 19:09:33.945 INFO [stderr]     |
Dec 01 19:09:33.945 INFO [stderr] 126 |     for (i, peak) in peaks.iter().enumerate() {
Dec 01 19:09:33.945 INFO [stderr]     |             ^^^^ help: consider using `_peak` instead
Dec 01 19:09:33.945 INFO [stderr] 
Dec 01 19:09:33.945 INFO [stderr] warning: unused variable: `y`
Dec 01 19:09:33.945 INFO [stderr]    --> src/hash.rs:162:9
Dec 01 19:09:33.945 INFO [stderr]     |
Dec 01 19:09:33.945 INFO [stderr] 162 |     let y = rand::random::<f64>();
Dec 01 19:09:33.945 INFO [stderr]     |         ^ help: consider using `_y` instead
Dec 01 19:09:33.945 INFO [stderr] 
Dec 01 19:09:33.945 INFO [stderr] warning: unused variable: `offsets2`
Dec 01 19:09:33.945 INFO [stderr]   --> src/main.rs:65:13
Dec 01 19:09:33.945 INFO [stderr]    |
Dec 01 19:09:33.945 INFO [stderr] 65 |     let mut offsets2: Vec<(f32, f32, String)> = Vec::new();
Dec 01 19:09:33.945 INFO [stderr]    |             ^^^^^^^^ help: consider using `_offsets2` instead
Dec 01 19:09:33.945 INFO [stderr] 
Dec 01 19:09:33.949 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.949 INFO [stderr]   --> src/main.rs:25:9
Dec 01 19:09:33.949 INFO [stderr]    |
Dec 01 19:09:33.949 INFO [stderr] 25 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:33.949 INFO [stderr]    |         ----^^
Dec 01 19:09:33.949 INFO [stderr]    |         |
Dec 01 19:09:33.949 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:33.949 INFO [stderr]    |
Dec 01 19:09:33.949 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 19:09:33.949 INFO [stderr] 
Dec 01 19:09:33.984 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.984 INFO [stderr]   --> src/main.rs:44:9
Dec 01 19:09:33.984 INFO [stderr]    |
Dec 01 19:09:33.984 INFO [stderr] 44 |     let mut dups = 0;
Dec 01 19:09:33.984 INFO [stderr]    |         ----^^^^
Dec 01 19:09:33.984 INFO [stderr]    |         |
Dec 01 19:09:33.984 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:33.994 INFO [stderr] 
Dec 01 19:09:33.994 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:33.994 INFO [stderr]   --> src/main.rs:65:9
Dec 01 19:09:33.994 INFO [stderr]    |
Dec 01 19:09:33.994 INFO [stderr] 65 |     let mut offsets2: Vec<(f32, f32, String)> = Vec::new();
Dec 01 19:09:33.994 INFO [stderr]    |         ----^^^^^^^^
Dec 01 19:09:33.994 INFO [stderr]    |         |
Dec 01 19:09:33.994 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:33.994 INFO [stderr] 
Dec 01 19:09:34.009 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.009 INFO [stderr]   --> src/spectrogram.rs:62:13
Dec 01 19:09:34.009 INFO [stderr]    |
Dec 01 19:09:34.009 INFO [stderr] 62 |         let mut sw = Stopwatch::start_new();
Dec 01 19:09:34.009 INFO [stderr]    |             ----^^
Dec 01 19:09:34.009 INFO [stderr]    |             |
Dec 01 19:09:34.009 INFO [stderr]    |             help: remove this `mut`
Dec 01 19:09:34.009 INFO [stderr] 
Dec 01 19:09:34.033 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.033 INFO [stderr]    --> src/spectrogram.rs:109:9
Dec 01 19:09:34.033 INFO [stderr]     |
Dec 01 19:09:34.033 INFO [stderr] 109 |     let mut new_spec = spectrum.split_off(half_index);
Dec 01 19:09:34.033 INFO [stderr]     |         ----^^^^^^^^
Dec 01 19:09:34.033 INFO [stderr]     |         |
Dec 01 19:09:34.033 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:34.033 INFO [stderr] 
Dec 01 19:09:34.057 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.057 INFO [stderr]    --> src/spectrogram.rs:183:9
Dec 01 19:09:34.057 INFO [stderr]     |
Dec 01 19:09:34.057 INFO [stderr] 183 |     let mut raw: Vec<Vec<f32>> = vec![Vec::new(); num_chunks - 1 as usize];
Dec 01 19:09:34.057 INFO [stderr]     |         ----^^^
Dec 01 19:09:34.057 INFO [stderr]     |         |
Dec 01 19:09:34.057 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:34.057 INFO [stderr] 
Dec 01 19:09:34.057 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.057 INFO [stderr]    --> src/spectrogram.rs:184:9
Dec 01 19:09:34.057 INFO [stderr]     |
Dec 01 19:09:34.057 INFO [stderr] 184 |     let mut output: Mutex<Vec<Vec<f32>>> = Mutex::new(raw);
Dec 01 19:09:34.057 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:34.057 INFO [stderr]     |         |
Dec 01 19:09:34.057 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:34.057 INFO [stderr] 
Dec 01 19:09:34.072 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.072 INFO [stderr]   --> src/hash.rs:61:9
Dec 01 19:09:34.072 INFO [stderr]    |
Dec 01 19:09:34.072 INFO [stderr] 61 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:34.072 INFO [stderr]    |         ----^^
Dec 01 19:09:34.072 INFO [stderr]    |         |
Dec 01 19:09:34.072 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:34.072 INFO [stderr] 
Dec 01 19:09:34.078 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.078 INFO [stderr]    --> src/hash.rs:113:9
Dec 01 19:09:34.078 INFO [stderr]     |
Dec 01 19:09:34.078 INFO [stderr] 113 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:34.078 INFO [stderr]     |         ----^^
Dec 01 19:09:34.078 INFO [stderr]     |         |
Dec 01 19:09:34.079 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:34.079 INFO [stderr] 
Dec 01 19:09:34.079 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:34.079 INFO [stderr]    --> src/hash.rs:119:9
Dec 01 19:09:34.079 INFO [stderr]     |
Dec 01 19:09:34.079 INFO [stderr] 119 |     let mut output: Mutex<Vec<PeakHash>> = Mutex::new(vec![]);
Dec 01 19:09:34.079 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:34.079 INFO [stderr]     |         |
Dec 01 19:09:34.079 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:34.079 INFO [stderr] 
Dec 01 19:09:34.094 INFO [stderr] warning: function is never used: `gen_spectrogram`
Dec 01 19:09:34.095 INFO [stderr]   --> src/main.rs:33:1
Dec 01 19:09:34.095 INFO [stderr]    |
Dec 01 19:09:34.095 INFO [stderr] 33 | fn gen_spectrogram<P: AsRef<std::path::Path>>(wav: P, image: P) {
Dec 01 19:09:34.095 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:34.095 INFO [stderr]    |
Dec 01 19:09:34.095 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 01 19:09:34.095 INFO [stderr] 
Dec 01 19:09:34.095 INFO [stderr] warning: function is never used: `test_fingerprinting`
Dec 01 19:09:34.095 INFO [stderr]   --> src/main.rs:39:1
Dec 01 19:09:34.095 INFO [stderr]    |
Dec 01 19:09:34.095 INFO [stderr] 39 | fn test_fingerprinting() {
Dec 01 19:09:34.095 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:34.095 INFO [stderr] 
Dec 01 19:09:36.150 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 44s
Dec 01 19:09:36.166 INFO [stderr] su: No module specific data is present
Dec 01 19:09:37.432 INFO running `"docker" "inspect" "1aca1fcc292f3fe72f5251d9a1cfbf45552f0858891305b6d23e3bd61f5b04c5"`
Dec 01 19:09:37.780 INFO running `"docker" "rm" "-f" "1aca1fcc292f3fe72f5251d9a1cfbf45552f0858891305b6d23e3bd61f5b04c5"`
Dec 01 19:09:38.047 INFO [stdout] 1aca1fcc292f3fe72f5251d9a1cfbf45552f0858891305b6d23e3bd61f5b04c5
Dec 01 19:09:38.053 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 19:09:38.828 INFO [stdout] 49ccf693229da627563bac6d99e7cde503d38bff1a96403c15fd8fdffe8d3b34
Dec 01 19:09:38.830 INFO running `"docker" "start" "-a" "49ccf693229da627563bac6d99e7cde503d38bff1a96403c15fd8fdffe8d3b34"`
Dec 01 19:09:39.909 INFO [stderr] usermod: no changes
Dec 01 19:09:40.098 INFO [stderr]    Compiling fingerprint v0.1.0 (/source)
Dec 01 19:09:44.946 INFO [stderr] warning: unused import: `self::stopwatch::Stopwatch`
Dec 01 19:09:44.946 INFO [stderr]  --> src/lib.rs:8:5
Dec 01 19:09:44.946 INFO [stderr]   |
Dec 01 19:09:44.946 INFO [stderr] 8 | use self::stopwatch::Stopwatch;
Dec 01 19:09:44.946 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:44.946 INFO [stderr]   |
Dec 01 19:09:44.946 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 19:09:44.946 INFO [stderr] 
Dec 01 19:09:44.946 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 01 19:09:44.946 INFO [stderr]   --> src/lib.rs:14:5
Dec 01 19:09:44.946 INFO [stderr]    |
Dec 01 19:09:44.946 INFO [stderr] 14 | use std::collections::HashMap;
Dec 01 19:09:44.946 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:44.946 INFO [stderr] 
Dec 01 19:09:44.946 INFO [stderr] warning: unused import: `multimap::MultiMap`
Dec 01 19:09:44.946 INFO [stderr]   --> src/lib.rs:18:5
Dec 01 19:09:44.946 INFO [stderr]    |
Dec 01 19:09:44.946 INFO [stderr] 18 | use multimap::MultiMap;
Dec 01 19:09:44.946 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 01 19:09:44.946 INFO [stderr] 
Dec 01 19:09:44.947 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 01 19:09:44.947 INFO [stderr]  --> src/hash.rs:5:5
Dec 01 19:09:44.947 INFO [stderr]   |
Dec 01 19:09:44.947 INFO [stderr] 5 | use std::collections::HashSet;
Dec 01 19:09:44.947 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:44.947 INFO [stderr] 
Dec 01 19:09:45.206 INFO [stderr] warning: unused variable: `peaks_len`
Dec 01 19:09:45.206 INFO [stderr]    --> src/hash.rs:116:9
Dec 01 19:09:45.206 INFO [stderr]     |
Dec 01 19:09:45.206 INFO [stderr] 116 |     let peaks_len = peaks.len();
Dec 01 19:09:45.206 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_peaks_len` instead
Dec 01 19:09:45.206 INFO [stderr]     |
Dec 01 19:09:45.206 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 19:09:45.206 INFO [stderr] 
Dec 01 19:09:45.206 INFO [stderr] warning: unused variable: `peak`
Dec 01 19:09:45.208 INFO [stderr]    --> src/hash.rs:126:13
Dec 01 19:09:45.208 INFO [stderr]     |
Dec 01 19:09:45.208 INFO [stderr] 126 |     for (i, peak) in peaks.iter().enumerate() {
Dec 01 19:09:45.208 INFO [stderr]     |             ^^^^ help: consider using `_peak` instead
Dec 01 19:09:45.208 INFO [stderr] 
Dec 01 19:09:45.208 INFO [stderr] warning: unused variable: `y`
Dec 01 19:09:45.208 INFO [stderr]    --> src/hash.rs:162:9
Dec 01 19:09:45.208 INFO [stderr]     |
Dec 01 19:09:45.208 INFO [stderr] 162 |     let y = rand::random::<f64>();
Dec 01 19:09:45.208 INFO [stderr]     |         ^ help: consider using `_y` instead
Dec 01 19:09:45.208 INFO [stderr] 
Dec 01 19:09:45.208 INFO [stderr] warning: unused variable: `path`
Dec 01 19:09:45.208 INFO [stderr]   --> src/lib.rs:53:39
Dec 01 19:09:45.208 INFO [stderr]    |
Dec 01 19:09:45.208 INFO [stderr] 53 | pub extern "C" fn rust_compute_hashes(path: *const c_char) -> int32_t {
Dec 01 19:09:45.208 INFO [stderr]    |                                       ^^^^ help: consider using `_path` instead
Dec 01 19:09:45.208 INFO [stderr] 
Dec 01 19:09:45.222 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.222 INFO [stderr]   --> src/spectrogram.rs:62:13
Dec 01 19:09:45.222 INFO [stderr]    |
Dec 01 19:09:45.222 INFO [stderr] 62 |         let mut sw = Stopwatch::start_new();
Dec 01 19:09:45.222 INFO [stderr]    |             ----^^
Dec 01 19:09:45.223 INFO [stderr]    |             |
Dec 01 19:09:45.223 INFO [stderr]    |             help: remove this `mut`
Dec 01 19:09:45.223 INFO [stderr]    |
Dec 01 19:09:45.223 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 19:09:45.223 INFO [stderr] 
Dec 01 19:09:45.229 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.230 INFO [stderr]    --> src/spectrogram.rs:109:9
Dec 01 19:09:45.230 INFO [stderr]     |
Dec 01 19:09:45.230 INFO [stderr] 109 |     let mut new_spec = spectrum.split_off(half_index);
Dec 01 19:09:45.230 INFO [stderr]     |         ----^^^^^^^^
Dec 01 19:09:45.230 INFO [stderr]     |         |
Dec 01 19:09:45.235 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:45.235 INFO [stderr] 
Dec 01 19:09:45.244 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.244 INFO [stderr]    --> src/spectrogram.rs:183:9
Dec 01 19:09:45.245 INFO [stderr]     |
Dec 01 19:09:45.245 INFO [stderr] 183 |     let mut raw: Vec<Vec<f32>> = vec![Vec::new(); num_chunks - 1 as usize];
Dec 01 19:09:45.245 INFO [stderr]     |         ----^^^
Dec 01 19:09:45.245 INFO [stderr]     |         |
Dec 01 19:09:45.245 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:45.245 INFO [stderr] 
Dec 01 19:09:45.247 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.247 INFO [stderr]    --> src/spectrogram.rs:184:9
Dec 01 19:09:45.247 INFO [stderr]     |
Dec 01 19:09:45.247 INFO [stderr] 184 |     let mut output: Mutex<Vec<Vec<f32>>> = Mutex::new(raw);
Dec 01 19:09:45.247 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:45.247 INFO [stderr]     |         |
Dec 01 19:09:45.247 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:45.247 INFO [stderr] 
Dec 01 19:09:45.262 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.263 INFO [stderr]   --> src/hash.rs:61:9
Dec 01 19:09:45.267 INFO [stderr]    |
Dec 01 19:09:45.267 INFO [stderr] 61 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:45.267 INFO [stderr]    |         ----^^
Dec 01 19:09:45.267 INFO [stderr]    |         |
Dec 01 19:09:45.267 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:45.267 INFO [stderr] 
Dec 01 19:09:45.268 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.269 INFO [stderr]    --> src/hash.rs:113:9
Dec 01 19:09:45.269 INFO [stderr]     |
Dec 01 19:09:45.269 INFO [stderr] 113 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:45.269 INFO [stderr]     |         ----^^
Dec 01 19:09:45.269 INFO [stderr]     |         |
Dec 01 19:09:45.269 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:45.269 INFO [stderr] 
Dec 01 19:09:45.269 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.269 INFO [stderr]    --> src/hash.rs:119:9
Dec 01 19:09:45.269 INFO [stderr]     |
Dec 01 19:09:45.269 INFO [stderr] 119 |     let mut output: Mutex<Vec<PeakHash>> = Mutex::new(vec![]);
Dec 01 19:09:45.269 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:45.269 INFO [stderr]     |         |
Dec 01 19:09:45.269 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:45.274 INFO [stderr] 
Dec 01 19:09:45.275 INFO [stderr] warning: unnecessary `unsafe` block
Dec 01 19:09:45.275 INFO [stderr]   --> src/lib.rs:69:5
Dec 01 19:09:45.275 INFO [stderr]    |
Dec 01 19:09:45.275 INFO [stderr] 69 |     unsafe { transformed[0] }
Dec 01 19:09:45.275 INFO [stderr]    |     ^^^^^^ unnecessary `unsafe` block
Dec 01 19:09:45.275 INFO [stderr]    |
Dec 01 19:09:45.283 INFO [stderr]    = note: #[warn(unused_unsafe)] on by default
Dec 01 19:09:45.283 INFO [stderr] 
Dec 01 19:09:45.371 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 01 19:09:45.371 INFO [stderr]   --> src/main.rs:14:5
Dec 01 19:09:45.371 INFO [stderr]    |
Dec 01 19:09:45.371 INFO [stderr] 14 | use std::collections::HashMap;
Dec 01 19:09:45.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:45.371 INFO [stderr]    |
Dec 01 19:09:45.371 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 01 19:09:45.371 INFO [stderr] 
Dec 01 19:09:45.376 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 01 19:09:45.376 INFO [stderr]  --> src/hash.rs:5:5
Dec 01 19:09:45.376 INFO [stderr]   |
Dec 01 19:09:45.376 INFO [stderr] 5 | use std::collections::HashSet;
Dec 01 19:09:45.376 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:45.376 INFO [stderr] 
Dec 01 19:09:45.376 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 01 19:09:45.376 INFO [stderr]   --> src/main.rs:81:12
Dec 01 19:09:45.376 INFO [stderr]    |
Dec 01 19:09:45.376 INFO [stderr] 81 |         if (diff != cur) {
Dec 01 19:09:45.376 INFO [stderr]    |            ^^^^^^^^^^^^^ help: remove these parentheses
Dec 01 19:09:45.376 INFO [stderr]    |
Dec 01 19:09:45.376 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 01 19:09:45.376 INFO [stderr] 
Dec 01 19:09:45.376 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 01 19:09:45.376 INFO [stderr]   --> src/main.rs:82:16
Dec 01 19:09:45.377 INFO [stderr]    |
Dec 01 19:09:45.377 INFO [stderr] 82 |             if (cur_count > 10) {
Dec 01 19:09:45.377 INFO [stderr]    |                ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 01 19:09:45.377 INFO [stderr] 
Dec 01 19:09:45.926 INFO [stderr] warning: unused variable: `peaks_len`
Dec 01 19:09:45.926 INFO [stderr]    --> src/hash.rs:116:9
Dec 01 19:09:45.926 INFO [stderr]     |
Dec 01 19:09:45.926 INFO [stderr] 116 |     let peaks_len = peaks.len();
Dec 01 19:09:45.926 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_peaks_len` instead
Dec 01 19:09:45.926 INFO [stderr]     |
Dec 01 19:09:45.926 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 19:09:45.926 INFO [stderr] 
Dec 01 19:09:45.926 INFO [stderr] warning: unused variable: `peak`
Dec 01 19:09:45.926 INFO [stderr]    --> src/hash.rs:126:13
Dec 01 19:09:45.926 INFO [stderr]     |
Dec 01 19:09:45.926 INFO [stderr] 126 |     for (i, peak) in peaks.iter().enumerate() {
Dec 01 19:09:45.926 INFO [stderr]     |             ^^^^ help: consider using `_peak` instead
Dec 01 19:09:45.926 INFO [stderr] 
Dec 01 19:09:45.926 INFO [stderr] warning: unused variable: `y`
Dec 01 19:09:45.926 INFO [stderr]    --> src/hash.rs:162:9
Dec 01 19:09:45.926 INFO [stderr]     |
Dec 01 19:09:45.926 INFO [stderr] 162 |     let y = rand::random::<f64>();
Dec 01 19:09:45.926 INFO [stderr]     |         ^ help: consider using `_y` instead
Dec 01 19:09:45.926 INFO [stderr] 
Dec 01 19:09:45.926 INFO [stderr] warning: unused variable: `offsets2`
Dec 01 19:09:45.926 INFO [stderr]   --> src/main.rs:65:13
Dec 01 19:09:45.926 INFO [stderr]    |
Dec 01 19:09:45.926 INFO [stderr] 65 |     let mut offsets2: Vec<(f32, f32, String)> = Vec::new();
Dec 01 19:09:45.926 INFO [stderr]    |             ^^^^^^^^ help: consider using `_offsets2` instead
Dec 01 19:09:45.926 INFO [stderr] 
Dec 01 19:09:45.939 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.939 INFO [stderr]   --> src/main.rs:25:9
Dec 01 19:09:45.939 INFO [stderr]    |
Dec 01 19:09:45.939 INFO [stderr] 25 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:45.939 INFO [stderr]    |         ----^^
Dec 01 19:09:45.939 INFO [stderr]    |         |
Dec 01 19:09:45.939 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:45.939 INFO [stderr]    |
Dec 01 19:09:45.939 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 19:09:45.939 INFO [stderr] 
Dec 01 19:09:45.987 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.987 INFO [stderr]   --> src/main.rs:44:9
Dec 01 19:09:45.987 INFO [stderr]    |
Dec 01 19:09:45.987 INFO [stderr] 44 |     let mut dups = 0;
Dec 01 19:09:45.987 INFO [stderr]    |         ----^^^^
Dec 01 19:09:45.987 INFO [stderr]    |         |
Dec 01 19:09:45.987 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:45.987 INFO [stderr] 
Dec 01 19:09:45.987 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:45.987 INFO [stderr]   --> src/main.rs:65:9
Dec 01 19:09:45.987 INFO [stderr]    |
Dec 01 19:09:45.987 INFO [stderr] 65 |     let mut offsets2: Vec<(f32, f32, String)> = Vec::new();
Dec 01 19:09:45.987 INFO [stderr]    |         ----^^^^^^^^
Dec 01 19:09:45.987 INFO [stderr]    |         |
Dec 01 19:09:45.987 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:45.987 INFO [stderr] 
Dec 01 19:09:46.052 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.052 INFO [stderr]   --> src/spectrogram.rs:62:13
Dec 01 19:09:46.052 INFO [stderr]    |
Dec 01 19:09:46.052 INFO [stderr] 62 |         let mut sw = Stopwatch::start_new();
Dec 01 19:09:46.052 INFO [stderr]    |             ----^^
Dec 01 19:09:46.052 INFO [stderr]    |             |
Dec 01 19:09:46.052 INFO [stderr]    |             help: remove this `mut`
Dec 01 19:09:46.052 INFO [stderr] 
Dec 01 19:09:46.091 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.091 INFO [stderr]    --> src/spectrogram.rs:109:9
Dec 01 19:09:46.091 INFO [stderr]     |
Dec 01 19:09:46.091 INFO [stderr] 109 |     let mut new_spec = spectrum.split_off(half_index);
Dec 01 19:09:46.091 INFO [stderr]     |         ----^^^^^^^^
Dec 01 19:09:46.091 INFO [stderr]     |         |
Dec 01 19:09:46.091 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:46.091 INFO [stderr] 
Dec 01 19:09:46.215 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.215 INFO [stderr]    --> src/spectrogram.rs:183:9
Dec 01 19:09:46.215 INFO [stderr]     |
Dec 01 19:09:46.215 INFO [stderr] 183 |     let mut raw: Vec<Vec<f32>> = vec![Vec::new(); num_chunks - 1 as usize];
Dec 01 19:09:46.215 INFO [stderr]     |         ----^^^
Dec 01 19:09:46.215 INFO [stderr]     |         |
Dec 01 19:09:46.215 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:46.215 INFO [stderr] 
Dec 01 19:09:46.215 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.215 INFO [stderr]    --> src/spectrogram.rs:184:9
Dec 01 19:09:46.215 INFO [stderr]     |
Dec 01 19:09:46.215 INFO [stderr] 184 |     let mut output: Mutex<Vec<Vec<f32>>> = Mutex::new(raw);
Dec 01 19:09:46.215 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:46.215 INFO [stderr]     |         |
Dec 01 19:09:46.215 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:46.215 INFO [stderr] 
Dec 01 19:09:46.303 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.303 INFO [stderr]   --> src/hash.rs:61:9
Dec 01 19:09:46.303 INFO [stderr]    |
Dec 01 19:09:46.303 INFO [stderr] 61 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:46.303 INFO [stderr]    |         ----^^
Dec 01 19:09:46.303 INFO [stderr]    |         |
Dec 01 19:09:46.303 INFO [stderr]    |         help: remove this `mut`
Dec 01 19:09:46.303 INFO [stderr] 
Dec 01 19:09:46.324 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.324 INFO [stderr]    --> src/hash.rs:113:9
Dec 01 19:09:46.324 INFO [stderr]     |
Dec 01 19:09:46.324 INFO [stderr] 113 |     let mut sw = Stopwatch::start_new();
Dec 01 19:09:46.324 INFO [stderr]     |         ----^^
Dec 01 19:09:46.324 INFO [stderr]     |         |
Dec 01 19:09:46.324 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:46.324 INFO [stderr] 
Dec 01 19:09:46.324 INFO [stderr] warning: variable does not need to be mutable
Dec 01 19:09:46.324 INFO [stderr]    --> src/hash.rs:119:9
Dec 01 19:09:46.324 INFO [stderr]     |
Dec 01 19:09:46.324 INFO [stderr] 119 |     let mut output: Mutex<Vec<PeakHash>> = Mutex::new(vec![]);
Dec 01 19:09:46.324 INFO [stderr]     |         ----^^^^^^
Dec 01 19:09:46.324 INFO [stderr]     |         |
Dec 01 19:09:46.324 INFO [stderr]     |         help: remove this `mut`
Dec 01 19:09:46.324 INFO [stderr] 
Dec 01 19:09:46.351 INFO [stderr] warning: function is never used: `gen_spectrogram`
Dec 01 19:09:46.351 INFO [stderr]   --> src/main.rs:33:1
Dec 01 19:09:46.351 INFO [stderr]    |
Dec 01 19:09:46.351 INFO [stderr] 33 | fn gen_spectrogram<P: AsRef<std::path::Path>>(wav: P, image: P) {
Dec 01 19:09:46.351 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:46.351 INFO [stderr]    |
Dec 01 19:09:46.351 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 01 19:09:46.351 INFO [stderr] 
Dec 01 19:09:46.351 INFO [stderr] warning: function is never used: `test_fingerprinting`
Dec 01 19:09:46.351 INFO [stderr]   --> src/main.rs:39:1
Dec 01 19:09:46.351 INFO [stderr]    |
Dec 01 19:09:46.351 INFO [stderr] 39 | fn test_fingerprinting() {
Dec 01 19:09:46.351 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 19:09:46.351 INFO [stderr] 
Dec 01 19:09:54.247 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.31s
Dec 01 19:09:54.253 INFO [stderr] su: No module specific data is present
Dec 01 19:09:54.977 INFO running `"docker" "inspect" "49ccf693229da627563bac6d99e7cde503d38bff1a96403c15fd8fdffe8d3b34"`
Dec 01 19:09:55.259 INFO running `"docker" "rm" "-f" "49ccf693229da627563bac6d99e7cde503d38bff1a96403c15fd8fdffe8d3b34"`
Dec 01 19:09:55.534 INFO [stdout] 49ccf693229da627563bac6d99e7cde503d38bff1a96403c15fd8fdffe8d3b34
