[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#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Frust-mod-tracker" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/rust-mod-tracker on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-0/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpal v0.9.0
[INFO] [stderr]   Downloaded device_query v0.1.3
[INFO] [stderr]   Downloaded ghakuf v0.5.3
[INFO] [stderr]   Downloaded rand_derive v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ba8d98b2188fbf150b89a3dfd879d2f0143c3c9cbf30a1fceff278ecc108fa4
[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" "6ba8d98b2188fbf150b89a3dfd879d2f0143c3c9cbf30a1fceff278ecc108fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ba8d98b2188fbf150b89a3dfd879d2f0143c3c9cbf30a1fceff278ecc108fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba8d98b2188fbf150b89a3dfd879d2f0143c3c9cbf30a1fceff278ecc108fa4", kill_on_drop: false }`
[INFO] [stdout] 6ba8d98b2188fbf150b89a3dfd879d2f0143c3c9cbf30a1fceff278ecc108fa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a7e2c8e654dae626da164f5b2ccd8453e29f942e1e694aeda7bd8a5deb87983
[INFO] running `Command { std: "docker" "start" "-a" "0a7e2c8e654dae626da164f5b2ccd8453e29f942e1e694aeda7bd8a5deb87983", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   lazy_static v1.3.0: spin, spin_no_std
[INFO] [stderr]   libc v0.2.58: use_std
[INFO] [stderr]   log v0.4.6: std
[INFO] [stderr] 
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ghakuf v0.5.3
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling device_query v0.1.3
[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 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/midi.rs (36 fixes)
[INFO] [stderr]        Fixed src/main.rs (11 fixes)
[INFO] [stderr]        Fixed src/synth.rs (3 fixes)
[INFO] [stderr]        Fixed src/osc.rs (1 fix)
[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: 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: unreachable pattern
[INFO] [stdout]    --> src/midi.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |             MidiEvent::NoteOn { ch, note, velocity } => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]  --> src/math.rs:7:13
[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: 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: 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: unreachable pattern
[INFO] [stdout]    --> src/midi.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |             MidiEvent::NoteOn { ch, note, velocity } => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]  --> src/math.rs:7:13
[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: 19 warnings emitted
[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: 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: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.18s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking ghakuf v0.5.3
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking x11 v2.18.1
[INFO] [stderr]     Checking alsa-sys v0.1.2
[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_chacha v0.2.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking device_query v0.1.3
[INFO] [stderr]     Checking mod_tracker v0.1.0 (/tmp/fixit)
[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: 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: unreachable pattern
[INFO] [stdout]    --> src/midi.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |             MidiEvent::NoteOn { ch, note, velocity } => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]  --> src/math.rs:7:13
[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: 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: unreachable pattern
[INFO] [stdout]    --> src/midi.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 |             MidiEvent::NoteOn { ch, note, velocity } => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]  --> src/math.rs:7:13
[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: 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: 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: 14 warnings emitted
[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: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `Command { std: "docker" "inspect" "0a7e2c8e654dae626da164f5b2ccd8453e29f942e1e694aeda7bd8a5deb87983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a7e2c8e654dae626da164f5b2ccd8453e29f942e1e694aeda7bd8a5deb87983", kill_on_drop: false }`
[INFO] [stdout] 0a7e2c8e654dae626da164f5b2ccd8453e29f942e1e694aeda7bd8a5deb87983