[INFO] updating cached repository https://github.com/DpEpsilon/synthapse-rs
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f4f1f33f84c6aedc0963403109cce4c7ddf350d
[INFO] testing DpEpsilon/synthapse-rs against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDpEpsilon%2Fsynthapse-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DpEpsilon/synthapse-rs on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DpEpsilon/synthapse-rs
[INFO] finished tweaking git repo https://github.com/DpEpsilon/synthapse-rs
[INFO] tweaked toml for git repo https://github.com/DpEpsilon/synthapse-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/DpEpsilon/synthapse-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 909124c87eef32e6aaafb75447ca6da5e6c34a065e19b9b1230f6eebbf221e25
[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" "909124c87eef32e6aaafb75447ca6da5e6c34a065e19b9b1230f6eebbf221e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "909124c87eef32e6aaafb75447ca6da5e6c34a065e19b9b1230f6eebbf221e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909124c87eef32e6aaafb75447ca6da5e6c34a065e19b9b1230f6eebbf221e25", kill_on_drop: false }`
[INFO] [stdout] 909124c87eef32e6aaafb75447ca6da5e6c34a065e19b9b1230f6eebbf221e25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--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] c9b51ee09146e1b511c13beb58031c846ace56273bccf2abd57b080cefe29176
[INFO] running `Command { std: "docker" "start" "-a" "c9b51ee09146e1b511c13beb58031c846ace56273bccf2abd57b080cefe29176", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling dimensioned v0.7.0
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling synthapse_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `SAMPLE_RATE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn SAMPLE_RATE()             -> si::Hertz<f64>  { 44100.0 * si::HZ }
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `sample_rate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TUNING_NOTE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn TUNING_NOTE()             -> si::Hertz<f64>  { 440.0 * si::HZ }
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `tuning_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `NOTES_IN_SCALE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn NOTES_IN_SCALE()          -> u64             { 12 }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `notes_in_scale`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `BEAT_LENGTH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn BEAT_LENGTH()             -> si::Second<f64> { 0.25 * si::S }
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `beat_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TIME_PER_SAMPLE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn TIME_PER_SAMPLE()         -> si::Second<f64> { 1.0 / SAMPLE_RATE() }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `time_per_sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `SMALLEST_INTERVAL_RATIO` should have a snake case name
[INFO] [stdout]   --> src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn SMALLEST_INTERVAL_RATIO() -> f64             { (2.0 as f64).powf(1.0 / (NOTES_IN_SCALE() as f64)) }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `smallest_interval_ratio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 stdout().write(&buf);
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized] target(s) in 21.08s
[INFO] running `Command { std: "docker" "inspect" "c9b51ee09146e1b511c13beb58031c846ace56273bccf2abd57b080cefe29176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b51ee09146e1b511c13beb58031c846ace56273bccf2abd57b080cefe29176", kill_on_drop: false }`
[INFO] [stdout] c9b51ee09146e1b511c13beb58031c846ace56273bccf2abd57b080cefe29176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 275cac6732b943c1a2f11243b4929a110506daddc31c607693c67d552e6b4fe7
[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" "275cac6732b943c1a2f11243b4929a110506daddc31c607693c67d552e6b4fe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling synthapse_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `SAMPLE_RATE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn SAMPLE_RATE()             -> si::Hertz<f64>  { 44100.0 * si::HZ }
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `sample_rate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TUNING_NOTE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn TUNING_NOTE()             -> si::Hertz<f64>  { 440.0 * si::HZ }
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `tuning_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `NOTES_IN_SCALE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn NOTES_IN_SCALE()          -> u64             { 12 }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `notes_in_scale`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `BEAT_LENGTH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn BEAT_LENGTH()             -> si::Second<f64> { 0.25 * si::S }
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `beat_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TIME_PER_SAMPLE` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn TIME_PER_SAMPLE()         -> si::Second<f64> { 1.0 / SAMPLE_RATE() }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `time_per_sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `SMALLEST_INTERVAL_RATIO` should have a snake case name
[INFO] [stdout]   --> src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn SMALLEST_INTERVAL_RATIO() -> f64             { (2.0 as f64).powf(1.0 / (NOTES_IN_SCALE() as f64)) }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `smallest_interval_ratio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 stdout().write(&buf);
[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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [optimized] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "275cac6732b943c1a2f11243b4929a110506daddc31c607693c67d552e6b4fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275cac6732b943c1a2f11243b4929a110506daddc31c607693c67d552e6b4fe7", kill_on_drop: false }`
[INFO] [stdout] 275cac6732b943c1a2f11243b4929a110506daddc31c607693c67d552e6b4fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6306163d9b13cf4aa2c8e399caca74b329bfd5afefb58bc8013966baa1d48b7
[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" "a6306163d9b13cf4aa2c8e399caca74b329bfd5afefb58bc8013966baa1d48b7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `SAMPLE_RATE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn SAMPLE_RATE()             -> si::Hertz<f64>  { 44100.0 * si::HZ }
[INFO] [stderr]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `sample_rate`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `TUNING_NOTE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn TUNING_NOTE()             -> si::Hertz<f64>  { 440.0 * si::HZ }
[INFO] [stderr]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `tuning_note`
[INFO] [stderr] 
[INFO] [stderr] warning: function `NOTES_IN_SCALE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn NOTES_IN_SCALE()          -> u64             { 12 }
[INFO] [stderr]    |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `notes_in_scale`
[INFO] [stderr] 
[INFO] [stderr] warning: function `BEAT_LENGTH` should have a snake case name
[INFO] [stderr]   --> src/main.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn BEAT_LENGTH()             -> si::Second<f64> { 0.25 * si::S }
[INFO] [stderr]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `beat_length`
[INFO] [stderr] 
[INFO] [stderr] warning: function `TIME_PER_SAMPLE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn TIME_PER_SAMPLE()         -> si::Second<f64> { 1.0 / SAMPLE_RATE() }
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `time_per_sample`
[INFO] [stderr] 
[INFO] [stderr] warning: function `SMALLEST_INTERVAL_RATIO` should have a snake case name
[INFO] [stderr]   --> src/main.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn SMALLEST_INTERVAL_RATIO() -> f64             { (2.0 as f64).powf(1.0 / (NOTES_IN_SCALE() as f64)) }
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `smallest_interval_ratio`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 stdout().write(&buf);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [optimized] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/synthapse_rust-1a6b9e372b8599d3
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6306163d9b13cf4aa2c8e399caca74b329bfd5afefb58bc8013966baa1d48b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6306163d9b13cf4aa2c8e399caca74b329bfd5afefb58bc8013966baa1d48b7", kill_on_drop: false }`
[INFO] [stdout] a6306163d9b13cf4aa2c8e399caca74b329bfd5afefb58bc8013966baa1d48b7