[INFO] updating cached repository https://github.com/schnommus/rust-fir
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 82c71f2ec7814d186b5166e41999e0d2f228f2c5
[INFO] testing schnommus/rust-fir against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschnommus%2Frust-fir" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/schnommus/rust-fir on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/schnommus/rust-fir
[INFO] finished tweaking git repo https://github.com/schnommus/rust-fir
[INFO] tweaked toml for git repo https://github.com/schnommus/rust-fir written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/schnommus/rust-fir already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a4f4e05d451c827cebd2986a194177d32bc867f5cd31633c052b4ba128ac1acf
[INFO] running `"docker" "start" "-a" "a4f4e05d451c827cebd2986a194177d32bc867f5cd31633c052b4ba128ac1acf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling rand_core v0.2.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling rand v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling png v0.5.2
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling image v0.10.4
[INFO] [stderr]    Compiling raster v0.2.0
[INFO] [stderr]    Compiling fir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `intensity_filtered`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let intensity_filtered =
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_filtered`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Rectangular`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Rectangular,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlackmanHarris`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     BlackmanHarris
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HighPass`
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     HighPass(f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BandPass`
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     BandPass(f64, f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BandStop`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     BandStop(f64, f64)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dft`
[INFO] [stderr]   --> src/main.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn dft(x: &[f64], n_samples: usize) -> Vec<f64> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `white_noise`
[INFO] [stderr]    --> src/main.rs:120:4
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn white_noise(n_samples: usize, amplitude: f64) -> Vec<f64> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Fs` should have an upper case name
[INFO] [stderr]    --> src/main.rs:131:7
[INFO] [stderr]     |
[INFO] [stderr] 131 | const Fs: f64 = 20e6;
[INFO] [stderr]     |       ^^ help: convert the identifier to upper case (notice the capitalization): `FS`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `nyquist` should have an upper case name
[INFO] [stderr]    --> src/main.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 | const nyquist: f64 = Fs/2.0;
[INFO] [stderr]     |       ^^^^^^^ help: convert the identifier to upper case: `NYQUIST`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n_lines` should have an upper case name
[INFO] [stderr]    --> src/main.rs:133:7
[INFO] [stderr]     |
[INFO] [stderr] 133 | const n_lines: i32 = 625;
[INFO] [stderr]     |       ^^^^^^^ help: convert the identifier to upper case: `N_LINES`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n_columns` should have an upper case name
[INFO] [stderr]    --> src/main.rs:134:7
[INFO] [stderr]     |
[INFO] [stderr] 134 | const n_columns: i32 = 700;
[INFO] [stderr]     |       ^^^^^^^^^ help: convert the identifier to upper case: `N_COLUMNS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `line_freq_hz` should have an upper case name
[INFO] [stderr]    --> src/main.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 | const line_freq_hz: f64 = 15.625e3;
[INFO] [stderr]     |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `LINE_FREQ_HZ`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `frame_freq_hz` should have an upper case name
[INFO] [stderr]    --> src/main.rs:136:7
[INFO] [stderr]     |
[INFO] [stderr] 136 | const frame_freq_hz: f64 = 50.0;
[INFO] [stderr]     |       ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FRAME_FREQ_HZ`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         raster::save(&self.canvas, "test_render.png");
[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: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.16s
[INFO] running `"docker" "inspect" "a4f4e05d451c827cebd2986a194177d32bc867f5cd31633c052b4ba128ac1acf"`
[INFO] running `"docker" "rm" "-f" "a4f4e05d451c827cebd2986a194177d32bc867f5cd31633c052b4ba128ac1acf"`
[INFO] [stdout] a4f4e05d451c827cebd2986a194177d32bc867f5cd31633c052b4ba128ac1acf
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fcba7ec0a95930191bc45f35e3dc62b56028697a73de7027428f04284da6facb
[INFO] running `"docker" "start" "-a" "fcba7ec0a95930191bc45f35e3dc62b56028697a73de7027428f04284da6facb"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling fir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `intensity_filtered`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let intensity_filtered =
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_filtered`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Rectangular`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Rectangular,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlackmanHarris`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     BlackmanHarris
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HighPass`
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     HighPass(f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BandPass`
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     BandPass(f64, f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BandStop`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     BandStop(f64, f64)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dft`
[INFO] [stderr]   --> src/main.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn dft(x: &[f64], n_samples: usize) -> Vec<f64> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `white_noise`
[INFO] [stderr]    --> src/main.rs:120:4
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn white_noise(n_samples: usize, amplitude: f64) -> Vec<f64> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Fs` should have an upper case name
[INFO] [stderr]    --> src/main.rs:131:7
[INFO] [stderr]     |
[INFO] [stderr] 131 | const Fs: f64 = 20e6;
[INFO] [stderr]     |       ^^ help: convert the identifier to upper case (notice the capitalization): `FS`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `nyquist` should have an upper case name
[INFO] [stderr]    --> src/main.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 | const nyquist: f64 = Fs/2.0;
[INFO] [stderr]     |       ^^^^^^^ help: convert the identifier to upper case: `NYQUIST`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n_lines` should have an upper case name
[INFO] [stderr]    --> src/main.rs:133:7
[INFO] [stderr]     |
[INFO] [stderr] 133 | const n_lines: i32 = 625;
[INFO] [stderr]     |       ^^^^^^^ help: convert the identifier to upper case: `N_LINES`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n_columns` should have an upper case name
[INFO] [stderr]    --> src/main.rs:134:7
[INFO] [stderr]     |
[INFO] [stderr] 134 | const n_columns: i32 = 700;
[INFO] [stderr]     |       ^^^^^^^^^ help: convert the identifier to upper case: `N_COLUMNS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `line_freq_hz` should have an upper case name
[INFO] [stderr]    --> src/main.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 | const line_freq_hz: f64 = 15.625e3;
[INFO] [stderr]     |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `LINE_FREQ_HZ`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `frame_freq_hz` should have an upper case name
[INFO] [stderr]    --> src/main.rs:136:7
[INFO] [stderr]     |
[INFO] [stderr] 136 | const frame_freq_hz: f64 = 50.0;
[INFO] [stderr]     |       ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FRAME_FREQ_HZ`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         raster::save(&self.canvas, "test_render.png");
[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: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "fcba7ec0a95930191bc45f35e3dc62b56028697a73de7027428f04284da6facb"`
[INFO] running `"docker" "rm" "-f" "fcba7ec0a95930191bc45f35e3dc62b56028697a73de7027428f04284da6facb"`
[INFO] [stdout] fcba7ec0a95930191bc45f35e3dc62b56028697a73de7027428f04284da6facb
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 844d94fb62e78ed78a23616aae7cef053a1397869ecfa19e3d6d3254518178a2
[INFO] running `"docker" "start" "-a" "844d94fb62e78ed78a23616aae7cef053a1397869ecfa19e3d6d3254518178a2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `intensity_filtered`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let intensity_filtered =
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity_filtered`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Rectangular`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Rectangular,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlackmanHarris`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     BlackmanHarris
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HighPass`
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     HighPass(f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BandPass`
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     BandPass(f64, f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BandStop`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     BandStop(f64, f64)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dft`
[INFO] [stderr]   --> src/main.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn dft(x: &[f64], n_samples: usize) -> Vec<f64> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `white_noise`
[INFO] [stderr]    --> src/main.rs:120:4
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn white_noise(n_samples: usize, amplitude: f64) -> Vec<f64> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Fs` should have an upper case name
[INFO] [stderr]    --> src/main.rs:131:7
[INFO] [stderr]     |
[INFO] [stderr] 131 | const Fs: f64 = 20e6;
[INFO] [stderr]     |       ^^ help: convert the identifier to upper case (notice the capitalization): `FS`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `nyquist` should have an upper case name
[INFO] [stderr]    --> src/main.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 | const nyquist: f64 = Fs/2.0;
[INFO] [stderr]     |       ^^^^^^^ help: convert the identifier to upper case: `NYQUIST`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n_lines` should have an upper case name
[INFO] [stderr]    --> src/main.rs:133:7
[INFO] [stderr]     |
[INFO] [stderr] 133 | const n_lines: i32 = 625;
[INFO] [stderr]     |       ^^^^^^^ help: convert the identifier to upper case: `N_LINES`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `n_columns` should have an upper case name
[INFO] [stderr]    --> src/main.rs:134:7
[INFO] [stderr]     |
[INFO] [stderr] 134 | const n_columns: i32 = 700;
[INFO] [stderr]     |       ^^^^^^^^^ help: convert the identifier to upper case: `N_COLUMNS`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `line_freq_hz` should have an upper case name
[INFO] [stderr]    --> src/main.rs:135:7
[INFO] [stderr]     |
[INFO] [stderr] 135 | const line_freq_hz: f64 = 15.625e3;
[INFO] [stderr]     |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `LINE_FREQ_HZ`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `frame_freq_hz` should have an upper case name
[INFO] [stderr]    --> src/main.rs:136:7
[INFO] [stderr]     |
[INFO] [stderr] 136 | const frame_freq_hz: f64 = 50.0;
[INFO] [stderr]     |       ^^^^^^^^^^^^^ help: convert the identifier to upper case: `FRAME_FREQ_HZ`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         raster::save(&self.canvas, "test_render.png");
[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: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fir-2f758c059dc90f3a
[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 `"docker" "inspect" "844d94fb62e78ed78a23616aae7cef053a1397869ecfa19e3d6d3254518178a2"`
[INFO] running `"docker" "rm" "-f" "844d94fb62e78ed78a23616aae7cef053a1397869ecfa19e3d6d3254518178a2"`
[INFO] [stdout] 844d94fb62e78ed78a23616aae7cef053a1397869ecfa19e3d6d3254518178a2