[INFO] cloning repository https://github.com/memchk/LedDesk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/memchk/LedDesk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemchk%2FLedDesk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemchk%2FLedDesk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7d70db1a65eaa7d17c8b123fca649574c4ee708
[INFO] checking memchk/LedDesk against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmemchk%2FLedDesk" "/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/memchk/LedDesk on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/memchk/LedDesk
[INFO] finished tweaking git repo https://github.com/memchk/LedDesk
[INFO] tweaked toml for git repo https://github.com/memchk/LedDesk written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/memchk/LedDesk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.10
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded thiserror v1.0.10
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded transpose v0.1.0
[INFO] [stderr]   Downloaded rustfft v3.0.1
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b8eb39669fa88fd84abf7207a5de46b30c3367ec6c55829edb2585763a8f119
[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" "7b8eb39669fa88fd84abf7207a5de46b30c3367ec6c55829edb2585763a8f119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b8eb39669fa88fd84abf7207a5de46b30c3367ec6c55829edb2585763a8f119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8eb39669fa88fd84abf7207a5de46b30c3367ec6c55829edb2585763a8f119", kill_on_drop: false }`
[INFO] [stdout] 7b8eb39669fa88fd84abf7207a5de46b30c3367ec6c55829edb2585763a8f119
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d745c21c85494e78b3dcc22a9436a0dffcd8574834da57920c68fd3a771c23a7
[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" "d745c21c85494e78b3dcc22a9436a0dffcd8574834da57920c68fd3a771c23a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking rustfft v3.0.1
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.10
[INFO] [stderr]     Checking thiserror v1.0.10
[INFO] [stderr]     Checking fft_desk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/process.rs:168:27
[INFO] [stdout]     |
[INFO] [stdout] 168 |             *o = f32::min((i * scaler) , 1.0).max(0.0);
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlackmanHarrisWindow`
[INFO] [stdout]   --> src/main.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | use math::{BlackmanHarrisWindow, Window, NutallWindow, f_to_bin};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/process.rs:168:27
[INFO] [stdout]     |
[INFO] [stdout] 168 |             *o = f32::min((i * scaler) , 1.0).max(0.0);
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlackmanHarrisWindow`
[INFO] [stdout]   --> src/main.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | use math::{BlackmanHarrisWindow, Window, NutallWindow, f_to_bin};
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fft_high_bin`
[INFO] [stdout]    --> src/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let fft_high_bin = f_to_bin(fft_size, 44100.0, args.mf);
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fft_high_bin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `correction`
[INFO] [stdout]    --> src/process.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let correction = 1.0 - ((x as f32 / base) + self.linear_equalizer).min(1.0);
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_correction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fft_high_bin`
[INFO] [stdout]    --> src/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let fft_high_bin = f_to_bin(fft_size, 44100.0, args.mf);
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fft_high_bin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `correction`
[INFO] [stdout]    --> src/process.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let correction = 1.0 - ((x as f32 / base) + self.linear_equalizer).min(1.0);
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_correction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_bin`
[INFO] [stdout]   --> src/process.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get_bin(&self, led: usize) -> usize
[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: `get_bin`
[INFO] [stdout]   --> src/process.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get_bin(&self, led: usize) -> usize
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.58s
[INFO] running `Command { std: "docker" "inspect" "d745c21c85494e78b3dcc22a9436a0dffcd8574834da57920c68fd3a771c23a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d745c21c85494e78b3dcc22a9436a0dffcd8574834da57920c68fd3a771c23a7", kill_on_drop: false }`
[INFO] [stdout] d745c21c85494e78b3dcc22a9436a0dffcd8574834da57920c68fd3a771c23a7