[INFO] cloning repository https://github.com/dobrakmato/rust-mod-tracker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dobrakmato/rust-mod-tracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 524533be253804233fc261fafb8ca612ef63ce5d
[INFO] checking dobrakmato/rust-mod-tracker against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/rust-mod-tracker on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dobrakmato/rust-mod-tracker
[INFO] finished tweaking git repo https://github.com/dobrakmato/rust-mod-tracker
[INFO] tweaked toml for git repo https://github.com/dobrakmato/rust-mod-tracker written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/dobrakmato/rust-mod-tracker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded ucd-util v0.1.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30a8de2ac8514943d42b769922c0ab0b3e4479eb25dc3401a66a64f7113fdc2e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "30a8de2ac8514943d42b769922c0ab0b3e4479eb25dc3401a66a64f7113fdc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30a8de2ac8514943d42b769922c0ab0b3e4479eb25dc3401a66a64f7113fdc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a8de2ac8514943d42b769922c0ab0b3e4479eb25dc3401a66a64f7113fdc2e", kill_on_drop: false }`
[INFO] [stdout] 30a8de2ac8514943d42b769922c0ab0b3e4479eb25dc3401a66a64f7113fdc2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 414581d44dc77b5946342ce1921a4a930749b1df48efcf6435f14d6d8d4580c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "414581d44dc77b5946342ce1921a4a930749b1df48efcf6435f14d6d8d4580c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling device_query v0.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ghakuf v0.5.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking cpal v0.9.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling rand_derive v0.5.0
[INFO] [stderr]     Checking mod_tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DeviceQuery`, `DeviceState`, `Keycode`
[INFO] [stdout]  --> src/main.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use device_query::{Keycode, DeviceState, DeviceQuery};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `note2freq`
[INFO] [stdout]  --> src/main.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::midi::{load_midi, Kind, note2freq, Player, Event, MidiPlayback};
[INFO] [stdout]   |                                    ^^^^^^^^^          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use core::borrow::Borrow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Osc`, `Shape`
[INFO] [stdout]   --> src/main.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::osc::{Osc, Shape};
[INFO] [stdout]    |                  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::OsStr`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::ffi::OsStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Preset`, `Synth`
[INFO] [stdout]   --> src/main.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::synth::{Synth, Preset};
[INFO] [stdout]    |                    ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::filter::Mode`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::filter::Mode;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path`
[INFO] [stdout]  --> src/midi.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:47:18
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 0...7 => GMFamily::Piano,
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:48:18
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 8...15 => GMFamily::ChromaticPercussion,
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 16...23 => GMFamily::Organ,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 14...31 => GMFamily::Guitar,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 32...39 => GMFamily::Bass,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 40...47 => GMFamily::Strings,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 48...55 => GMFamily::Ensemble,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 56...63 => GMFamily::Brass,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 64...71 => GMFamily::Reed,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 72...79 => GMFamily::Pipe,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 80...88 => GMFamily::SynthLead,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 88...95 => GMFamily::SynthPad,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 96...103 => GMFamily::SynthEffects,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:60:20
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 104...111 => GMFamily::Ethnic,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 112...119 => GMFamily::Percussive,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 120...127 => GMFamily::SoundEffects,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/midi.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.midi.total_time += (delta_time as f64 * self.midi.tick_length);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Decay`, `Sustain`
[INFO] [stdout]  --> src/synth.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::env::EnvelopeState::{Attack, Sustain, Off, Decay, Release};
[INFO] [stdout]   |                                         ^^^^^^^       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeviceQuery`, `DeviceState`, `Keycode`
[INFO] [stdout]  --> src/main.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use device_query::{Keycode, DeviceState, DeviceQuery};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `note2freq`
[INFO] [stdout]  --> src/main.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::midi::{load_midi, Kind, note2freq, Player, Event, MidiPlayback};
[INFO] [stdout]   |                                    ^^^^^^^^^          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use core::borrow::Borrow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Osc`, `Shape`
[INFO] [stdout]   --> src/main.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::osc::{Osc, Shape};
[INFO] [stdout]    |                  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::OsStr`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::ffi::OsStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Preset`, `Synth`
[INFO] [stdout]   --> src/main.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::synth::{Synth, Preset};
[INFO] [stdout]    |                    ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::filter::Mode`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::filter::Mode;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path`
[INFO] [stdout]  --> src/midi.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:47:18
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 0...7 => GMFamily::Piano,
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:48:18
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 8...15 => GMFamily::ChromaticPercussion,
[INFO] [stdout]    |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 16...23 => GMFamily::Organ,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 14...31 => GMFamily::Guitar,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 32...39 => GMFamily::Bass,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 40...47 => GMFamily::Strings,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 48...55 => GMFamily::Ensemble,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 56...63 => GMFamily::Brass,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 64...71 => GMFamily::Reed,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 72...79 => GMFamily::Pipe,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 80...88 => GMFamily::SynthLead,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:58:19
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 88...95 => GMFamily::SynthPad,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 96...103 => GMFamily::SynthEffects,
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:60:20
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 104...111 => GMFamily::Ethnic,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 112...119 => GMFamily::Percussive,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/midi.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 120...127 => GMFamily::SoundEffects,
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated crate `rand_derive`: this crate is deprecated without replacement
[INFO] [stdout]   --> src/main.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate rand_derive;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/midi.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 |         self.midi.total_time += (delta_time as f64 * self.midi.tick_length);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Decay`, `Sustain`
[INFO] [stdout]  --> src/synth.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::env::EnvelopeState::{Attack, Sustain, Off, Decay, Release};
[INFO] [stdout]   |                                         ^^^^^^^       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated crate `rand_derive`: this crate is deprecated without replacement
[INFO] [stdout]   --> src/main.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate rand_derive;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns overlap on their endpoints
[INFO] [stdout]   --> src/midi.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 80...88 => GMFamily::SynthLead,
[INFO] [stdout]    |                 ------- this range overlaps on `88_u8`...
[INFO] [stdout] 58 |                 88...95 => GMFamily::SynthPad,
[INFO] [stdout]    |                 ^^^^^^^ ... with this range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(overlapping_range_endpoints)]` on by default
[INFO] [stdout]    = note: you likely meant to write mutually exclusive ranges
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `freq`
[INFO] [stdout]   --> src/osc.rs:37:39
[INFO] [stdout]    |
[INFO] [stdout] 37 |         if self.pitch_mod < 0.0 { let freq = -modulated_freq; }
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_freq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]  --> src/math.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut t = 0;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_type`
[INFO] [stdout]    --> src/midi.rs:186:34
[INFO] [stdout]     |
[INFO] [stdout] 186 |             MetaEvent::Unknown { event_type } => {} /* silent */
[INFO] [stdout]     |                                  ^^^^^^^^^^ help: try ignoring the field: `event_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]    --> src/midi.rs:196:44
[INFO] [stdout]     |
[INFO] [stdout] 196 |             MidiEvent::NoteOff { ch, note, velocity } | MidiEvent::NoteOn { ch, note, velocity: velocity @ 0 } => {
[INFO] [stdout]     |                                            ^^^^^^^^                                             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 196 |             MidiEvent::NoteOff { ch, note, velocity: _ } | MidiEvent::NoteOn { ch, note, velocity: _ } => {
[INFO] [stdout]     |                                            ^^^^^^^^^^^                                             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:221:40
[INFO] [stdout]     |
[INFO] [stdout] 221 |             MidiEvent::ControlChange { ch, control, data } => {}
[INFO] [stdout]     |                                        ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `control`
[INFO] [stdout]    --> src/midi.rs:221:44
[INFO] [stdout]     |
[INFO] [stdout] 221 |             MidiEvent::ControlChange { ch, control, data } => {}
[INFO] [stdout]     |                                            ^^^^^^^ help: try ignoring the field: `control: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/midi.rs:221:53
[INFO] [stdout]     |
[INFO] [stdout] 221 |             MidiEvent::ControlChange { ch, control, data } => {}
[INFO] [stdout]     |                                                     ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:222:42
[INFO] [stdout]     |
[INFO] [stdout] 222 |             MidiEvent::PitchBendChange { ch, data } => {}
[INFO] [stdout]     |                                          ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/midi.rs:222:46
[INFO] [stdout]     |
[INFO] [stdout] 222 |             MidiEvent::PitchBendChange { ch, data } => {}
[INFO] [stdout]     |                                              ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:223:42
[INFO] [stdout]     |
[INFO] [stdout] 223 |             MidiEvent::ChannelPressure { ch, pressure } => {} /* unsupported */
[INFO] [stdout]     |                                          ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pressure`
[INFO] [stdout]    --> src/midi.rs:223:46
[INFO] [stdout]     |
[INFO] [stdout] 223 |             MidiEvent::ChannelPressure { ch, pressure } => {} /* unsupported */
[INFO] [stdout]     |                                              ^^^^^^^^ help: try ignoring the field: `pressure: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:224:48
[INFO] [stdout]     |
[INFO] [stdout] 224 |             MidiEvent::PolyphonicKeyPressure { ch, note, velocity } => {} /* unsupported */
[INFO] [stdout]     |                                                ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]    --> src/midi.rs:224:52
[INFO] [stdout]     |
[INFO] [stdout] 224 |             MidiEvent::PolyphonicKeyPressure { ch, note, velocity } => {} /* unsupported */
[INFO] [stdout]     |                                                    ^^^^ help: try ignoring the field: `note: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]    --> src/midi.rs:224:58
[INFO] [stdout]     |
[INFO] [stdout] 224 |             MidiEvent::PolyphonicKeyPressure { ch, note, velocity } => {} /* unsupported */
[INFO] [stdout]     |                                                          ^^^^^^^^ help: try ignoring the field: `velocity: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns overlap on their endpoints
[INFO] [stdout]   --> src/midi.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 80...88 => GMFamily::SynthLead,
[INFO] [stdout]    |                 ------- this range overlaps on `88_u8`...
[INFO] [stdout] 58 |                 88...95 => GMFamily::SynthPad,
[INFO] [stdout]    |                 ^^^^^^^ ... with this range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(overlapping_range_endpoints)]` on by default
[INFO] [stdout]    = note: you likely meant to write mutually exclusive ranges
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/midi.rs:304:52
[INFO] [stdout]     |
[INFO] [stdout] 304 |             channels: vec![0; 16].into_iter().map(|x| MidiChannel::new(sample_rate)).collect(),
[INFO] [stdout]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instrument`
[INFO] [stdout]    --> src/midi.rs:317:51
[INFO] [stdout]     |
[INFO] [stdout] 317 |     pub fn set_instrument(&mut self, ch: Channel, instrument: GMInstrument) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instrument`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `freq`
[INFO] [stdout]   --> src/osc.rs:37:39
[INFO] [stdout]    |
[INFO] [stdout] 37 |         if self.pitch_mod < 0.0 { let freq = -modulated_freq; }
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_freq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]  --> src/math.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut t = 0;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_type`
[INFO] [stdout]    --> src/midi.rs:186:34
[INFO] [stdout]     |
[INFO] [stdout] 186 |             MetaEvent::Unknown { event_type } => {} /* silent */
[INFO] [stdout]     |                                  ^^^^^^^^^^ help: try ignoring the field: `event_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]    --> src/midi.rs:196:44
[INFO] [stdout]     |
[INFO] [stdout] 196 |             MidiEvent::NoteOff { ch, note, velocity } | MidiEvent::NoteOn { ch, note, velocity: velocity @ 0 } => {
[INFO] [stdout]     |                                            ^^^^^^^^                                             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 196 |             MidiEvent::NoteOff { ch, note, velocity: _ } | MidiEvent::NoteOn { ch, note, velocity: _ } => {
[INFO] [stdout]     |                                            ^^^^^^^^^^^                                             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:221:40
[INFO] [stdout]     |
[INFO] [stdout] 221 |             MidiEvent::ControlChange { ch, control, data } => {}
[INFO] [stdout]     |                                        ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `control`
[INFO] [stdout]    --> src/midi.rs:221:44
[INFO] [stdout]     |
[INFO] [stdout] 221 |             MidiEvent::ControlChange { ch, control, data } => {}
[INFO] [stdout]     |                                            ^^^^^^^ help: try ignoring the field: `control: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/midi.rs:221:53
[INFO] [stdout]     |
[INFO] [stdout] 221 |             MidiEvent::ControlChange { ch, control, data } => {}
[INFO] [stdout]     |                                                     ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:222:42
[INFO] [stdout]     |
[INFO] [stdout] 222 |             MidiEvent::PitchBendChange { ch, data } => {}
[INFO] [stdout]     |                                          ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/midi.rs:222:46
[INFO] [stdout]     |
[INFO] [stdout] 222 |             MidiEvent::PitchBendChange { ch, data } => {}
[INFO] [stdout]     |                                              ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:223:42
[INFO] [stdout]     |
[INFO] [stdout] 223 |             MidiEvent::ChannelPressure { ch, pressure } => {} /* unsupported */
[INFO] [stdout]     |                                          ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pressure`
[INFO] [stdout]    --> src/midi.rs:223:46
[INFO] [stdout]     |
[INFO] [stdout] 223 |             MidiEvent::ChannelPressure { ch, pressure } => {} /* unsupported */
[INFO] [stdout]     |                                              ^^^^^^^^ help: try ignoring the field: `pressure: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/midi.rs:224:48
[INFO] [stdout]     |
[INFO] [stdout] 224 |             MidiEvent::PolyphonicKeyPressure { ch, note, velocity } => {} /* unsupported */
[INFO] [stdout]     |                                                ^^ help: try ignoring the field: `ch: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]    --> src/midi.rs:224:52
[INFO] [stdout]     |
[INFO] [stdout] 224 |             MidiEvent::PolyphonicKeyPressure { ch, note, velocity } => {} /* unsupported */
[INFO] [stdout]     |                                                    ^^^^ help: try ignoring the field: `note: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]    --> src/midi.rs:224:58
[INFO] [stdout]     |
[INFO] [stdout] 224 |             MidiEvent::PolyphonicKeyPressure { ch, note, velocity } => {} /* unsupported */
[INFO] [stdout]     |                                                          ^^^^^^^^ help: try ignoring the field: `velocity: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/midi.rs:304:52
[INFO] [stdout]     |
[INFO] [stdout] 304 |             channels: vec![0; 16].into_iter().map(|x| MidiChannel::new(sample_rate)).collect(),
[INFO] [stdout]     |                                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instrument`
[INFO] [stdout]    --> src/midi.rs:317:51
[INFO] [stdout]     |
[INFO] [stdout] 317 |     pub fn set_instrument(&mut self, ch: Channel, instrument: GMInstrument) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instrument`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/midi.rs:360:26
[INFO] [stdout]     |
[INFO] [stdout] 360 |             .filter(|(i, x)| *i != 9)
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/midi.rs:361:20
[INFO] [stdout]     |
[INFO] [stdout] 361 |             .map(|(i, x)| x.next())
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/midi.rs:360:26
[INFO] [stdout]     |
[INFO] [stdout] 360 |             .filter(|(i, x)| *i != 9)
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/midi.rs:361:20
[INFO] [stdout]     |
[INFO] [stdout] 361 |             .map(|(i, x)| x.next())
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut midi = load_midi(Path::new("tet.mid"));
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut midi = load_midi(Path::new("tet.mid"));
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut start = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/midi.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let mut last = x.peek();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/midi.rs:270:25
[INFO] [stdout]     |
[INFO] [stdout] 270 |                     let mut last = x.peek();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/midi.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let mut last = x.peek();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/midi.rs:270:25
[INFO] [stdout]     |
[INFO] [stdout] 270 |                     let mut last = x.peek();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synth.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let mut available = self.voices.voices.len();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synth.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut used = self.voices.voices.iter()
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sample_rate`
[INFO] [stdout]   --> src/osc.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn sample_rate(&mut self, sample_rate: f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sampler.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(buffer: &'a [f32], sample_rate: SampleRate, channels: u8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sampler.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(sample: &'a Sample) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_float`
[INFO] [stdout]   --> src/math.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn as_float(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `program_number`
[INFO] [stdout]   --> src/midi.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn program_number(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `preset`
[INFO] [stdout]    --> src/midi.rs:298:5
[INFO] [stdout]     |
[INFO] [stdout] 298 |     preset: Preset,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random_presets`
[INFO] [stdout]    --> src/midi.rs:365:12
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn random_presets(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `clamp` has been stable since 1.50.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(clamp)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synth.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let mut available = self.voices.voices.len();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synth.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut used = self.voices.voices.iter()
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sample_rate`
[INFO] [stdout]   --> src/osc.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn sample_rate(&mut self, sample_rate: f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sampler.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(buffer: &'a [f32], sample_rate: SampleRate, channels: u8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sampler.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(sample: &'a Sample) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Fraction`
[INFO] [stdout]  --> src/math.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Fraction {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gcd`
[INFO] [stdout]  --> src/math.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn gcd(mut a: usize, mut b: usize) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/math.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(numerator: usize, denominator: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `denominator`
[INFO] [stdout]   --> src/math.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn denominator(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `numerator`
[INFO] [stdout]   --> src/math.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn numerator(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_float`
[INFO] [stdout]   --> src/math.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn as_float(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `program_number`
[INFO] [stdout]   --> src/midi.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn program_number(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `preset`
[INFO] [stdout]    --> src/midi.rs:298:5
[INFO] [stdout]     |
[INFO] [stdout] 298 |     preset: Preset,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random_presets`
[INFO] [stdout]    --> src/midi.rs:365:12
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn random_presets(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `clamp` has been stable since 1.50.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(clamp)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   f.write(&u32tou8abe(i));
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:115:25
[INFO] [stdout]     |
[INFO] [stdout] 115 |                         f.flush();
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   f.write(&u32tou8abe(i));
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:115:25
[INFO] [stdout]     |
[INFO] [stdout] 115 |                         f.flush();
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 64 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 69 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.01s
[INFO] running `Command { std: "docker" "inspect" "414581d44dc77b5946342ce1921a4a930749b1df48efcf6435f14d6d8d4580c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "414581d44dc77b5946342ce1921a4a930749b1df48efcf6435f14d6d8d4580c3", kill_on_drop: false }`
[INFO] [stdout] 414581d44dc77b5946342ce1921a4a930749b1df48efcf6435f14d6d8d4580c3