[INFO] updating cached repository https://github.com/HEnquist/rustfir
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/HEnquist/rustfir
[INFO] [stderr]    209f979..83ea22a  morefilters -> morefilters
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a6bfdd1da66dcffa921c2df2526431f70bc2def
[INFO] checking HEnquist/rustfir against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHEnquist%2Frustfir" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HEnquist/rustfir on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/HEnquist/rustfir
[INFO] finished tweaking git repo https://github.com/HEnquist/rustfir
[INFO] tweaked toml for git repo https://github.com/HEnquist/rustfir written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/HEnquist/rustfir already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aae00b934029a42d0a9e01bacedef3bf1275faca2f30fb6ce713b4cc3c4e3f45
[INFO] running `"docker" "start" "-a" "aae00b934029a42d0a9e01bacedef3bf1275faca2f30fb6ce713b4cc3c4e3f45"`
[INFO] [stderr]    Compiling alsa-sys v0.2.0
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking alsa v0.4.0
[INFO] [stderr]     Checking loop-example v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `iter`
[INFO] [stderr]  --> src/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{iter, error};
[INFO] [stderr]   |           ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Direction`, `ValueOr`
[INFO] [stderr]  --> src/main.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use alsa::{Direction, ValueOr};
[INFO] [stderr]   |            ^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Access`, `Format`, `HwParams`, `PCM`, `State`
[INFO] [stderr]  --> src/main.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use alsa::pcm::{PCM, HwParams, Format, Access, State};
[INFO] [stderr]   |                 ^^^  ^^^^^^^^  ^^^^^^  ^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `alsa::direct::pcm::MmapPlayback`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alsa::direct::pcm::MmapPlayback;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `pcm16` should have an upper camel case name
[INFO] [stderr]  --> src/audiodevice.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type pcm16 = i16;
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `Pcm16`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `pcm24` should have an upper camel case name
[INFO] [stderr]  --> src/audiodevice.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type pcm24 = i32;
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `Pcm24`
[INFO] [stderr] 
[INFO] [stderr] warning: type `pcm32` should have an upper camel case name
[INFO] [stderr]  --> src/audiodevice.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type pcm32 = i32;
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `Pcm32`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iter`
[INFO] [stderr]  --> src/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{iter, error};
[INFO] [stderr]   |           ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Direction`, `ValueOr`
[INFO] [stderr]  --> src/main.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use alsa::{Direction, ValueOr};
[INFO] [stderr]   |            ^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error`, `iter`
[INFO] [stderr]  --> src/alsadevice.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{iter, error};
[INFO] [stderr]   |           ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PCM`
[INFO] [stderr]  --> src/alsadevice.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use alsa::pcm::{PCM, HwParams, Format, Access, State};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Access`, `Format`, `HwParams`, `PCM`, `State`
[INFO] [stderr]  --> src/main.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use alsa::pcm::{PCM, HwParams, Format, Access, State};
[INFO] [stderr]   |                 ^^^  ^^^^^^^^  ^^^^^^  ^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `alsa::direct::pcm::MmapPlayback`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use alsa::direct::pcm::MmapPlayback;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `pcm16` should have an upper camel case name
[INFO] [stderr]  --> src/audiodevice.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type pcm16 = i16;
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `Pcm16`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `pcm24` should have an upper camel case name
[INFO] [stderr]  --> src/audiodevice.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type pcm24 = i32;
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `Pcm24`
[INFO] [stderr] 
[INFO] [stderr] warning: type `pcm32` should have an upper camel case name
[INFO] [stderr]  --> src/audiodevice.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type pcm32 = i32;
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case: `Pcm32`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error`, `iter`
[INFO] [stderr]  --> src/alsadevice.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{iter, error};
[INFO] [stderr]   |           ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PCM`
[INFO] [stderr]  --> src/alsadevice.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use alsa::pcm::{PCM, HwParams, Format, Access, State};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 133 | /     loop {
[INFO] [stderr] 134 | |         thread::sleep(delay);
[INFO] [stderr] 135 | |     }
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 136 |       Ok(())
[INFO] [stderr]     |       ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:140:57
[INFO] [stderr]     |
[INFO] [stderr] 140 |     if let Err(e) = run() { println!("Error ({}) {}", e.description(), e); }
[INFO] [stderr]     |                                                         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 133 | /     loop {
[INFO] [stderr] 134 | |         thread::sleep(delay);
[INFO] [stderr] 135 | |     }
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 136 |       Ok(())
[INFO] [stderr]     |       ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:140:57
[INFO] [stderr]     |
[INFO] [stderr] 140 |     if let Err(e) = run() { println!("Error ({}) {}", e.description(), e); }
[INFO] [stderr]     |                                                         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]    --> src/main.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |             let frames = capture_dev.capture().unwrap();
[INFO] [stderr]     |                 ^^^^^^ help: consider prefixing with an underscore: `_frames`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chan`
[INFO] [stderr]   --> src/alsadevice.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 for chan in 0..self.channels {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_chan`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/alsadevice.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 for frame in 0..num_frames {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chan`
[INFO] [stderr]    --> src/alsadevice.rs:114:21
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 for chan in 0..self.channels {
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_chan`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/alsadevice.rs:120:21
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 for frame in 0..num_frames {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:65:44
[INFO] [stderr]    |
[INFO] [stderr] 65 |                         Waveforms::Float32(mut wfs) => {
[INFO] [stderr]    |                                            ----^^^
[INFO] [stderr]    |                                            |
[INFO] [stderr]    |                                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `pcm16`
[INFO] [stderr]  --> src/audiodevice.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type pcm16 = i16;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `pcm24`
[INFO] [stderr]  --> src/audiodevice.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type pcm24 = i32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]    --> src/main.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |             let frames = capture_dev.capture().unwrap();
[INFO] [stderr]     |                 ^^^^^^ help: consider prefixing with an underscore: `_frames`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `pcm32`
[INFO] [stderr]  --> src/audiodevice.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type pcm32 = i32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float64`
[INFO] [stderr]   --> src/audiodevice.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Float64,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chan`
[INFO] [stderr]   --> src/alsadevice.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 for chan in 0..self.channels {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_chan`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/alsadevice.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 for frame in 0..num_frames {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `devname`
[INFO] [stderr]   --> src/alsadevice.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     devname: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chan`
[INFO] [stderr]    --> src/alsadevice.rs:114:21
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 for chan in 0..self.channels {
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_chan`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/alsadevice.rs:120:21
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 for frame in 0..num_frames {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `samplerate`
[INFO] [stderr]   --> src/alsadevice.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     samplerate: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `channels`
[INFO] [stderr]   --> src/alsadevice.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     channels: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `devname`
[INFO] [stderr]   --> src/alsadevice.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     devname: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `samplerate`
[INFO] [stderr]   --> src/alsadevice.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     samplerate: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:65:44
[INFO] [stderr]    |
[INFO] [stderr] 65 |                         Waveforms::Float32(mut wfs) => {
[INFO] [stderr]    |                                            ----^^^
[INFO] [stderr]    |                                            |
[INFO] [stderr]    |                                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SF`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | type SF = i16;
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `PF`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | type PF = f64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Quit,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `pcm16`
[INFO] [stderr]  --> src/audiodevice.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub type pcm16 = i16;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `pcm24`
[INFO] [stderr]  --> src/audiodevice.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub type pcm24 = i32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `pcm32`
[INFO] [stderr]  --> src/audiodevice.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type pcm32 = i32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float64`
[INFO] [stderr]   --> src/audiodevice.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Float64,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `devname`
[INFO] [stderr]   --> src/alsadevice.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     devname: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `samplerate`
[INFO] [stderr]   --> src/alsadevice.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     samplerate: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `channels`
[INFO] [stderr]   --> src/alsadevice.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     channels: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `devname`
[INFO] [stderr]   --> src/alsadevice.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     devname: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `samplerate`
[INFO] [stderr]   --> src/alsadevice.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     samplerate: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SF`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | type SF = i16;
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `PF`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | type PF = f64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Quit,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.30s
[INFO] running `"docker" "inspect" "aae00b934029a42d0a9e01bacedef3bf1275faca2f30fb6ce713b4cc3c4e3f45"`
[INFO] running `"docker" "rm" "-f" "aae00b934029a42d0a9e01bacedef3bf1275faca2f30fb6ce713b4cc3c4e3f45"`
[INFO] [stdout] aae00b934029a42d0a9e01bacedef3bf1275faca2f30fb6ce713b4cc3c4e3f45