[INFO] cloning repository https://github.com/DasEtwas/arduino_audio_stream
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DasEtwas/arduino_audio_stream" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDasEtwas%2Farduino_audio_stream", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDasEtwas%2Farduino_audio_stream'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d0f4bf98bbf9c9ad56c02fd2ea904fd07e3fb39
[INFO] testing DasEtwas/arduino_audio_stream against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDasEtwas%2Farduino_audio_stream" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DasEtwas/arduino_audio_stream on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DasEtwas/arduino_audio_stream
[INFO] finished tweaking git repo https://github.com/DasEtwas/arduino_audio_stream
[INFO] tweaked toml for git repo https://github.com/DasEtwas/arduino_audio_stream written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/DasEtwas/arduino_audio_stream already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30326052f9b83ef1b119327fc23456129d04117c34e0a99865b9b4bff115c7cc
[INFO] running `Command { std: "docker" "start" "-a" "30326052f9b83ef1b119327fc23456129d04117c34e0a99865b9b4bff115c7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30326052f9b83ef1b119327fc23456129d04117c34e0a99865b9b4bff115c7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30326052f9b83ef1b119327fc23456129d04117c34e0a99865b9b4bff115c7cc", kill_on_drop: false }`
[INFO] [stdout] 30326052f9b83ef1b119327fc23456129d04117c34e0a99865b9b4bff115c7cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1efdb9d94ff3b331292af4eeb62937334ec5a7919cdf5013aac34e6642265248
[INFO] running `Command { std: "docker" "start" "-a" "1efdb9d94ff3b331292af4eeb62937334ec5a7919cdf5013aac34e6642265248", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling serialport v4.0.0
[INFO] [stderr]    Compiling arduino_audio_stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/main.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{sleep, spawn, yield_now};
[INFO] [stdout]   |                                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `LPF_STRENGTH`
[INFO] [stdout]   --> src/dfpwm.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const LPF_STRENGTH: i32 = 140;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DfpwmDecoder`
[INFO] [stdout]   --> src/dfpwm.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct DfpwmDecoder {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dfpwm.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn new() -> DfpwmDecoder {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decompress_byte`
[INFO] [stdout]   --> src/dfpwm.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn decompress_byte(&mut self, data: u8, output: &mut [i32; 8]) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decompress_byte`
[INFO] [stdout]   --> src/dfpwm.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn decompress_byte(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.74s
[INFO] running `Command { std: "docker" "inspect" "1efdb9d94ff3b331292af4eeb62937334ec5a7919cdf5013aac34e6642265248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efdb9d94ff3b331292af4eeb62937334ec5a7919cdf5013aac34e6642265248", kill_on_drop: false }`
[INFO] [stdout] 1efdb9d94ff3b331292af4eeb62937334ec5a7919cdf5013aac34e6642265248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de5abc10d43fe0d5f68c298f5a540ab2215b1f80256e3ad7e4e1dce3a628d294
[INFO] running `Command { std: "docker" "start" "-a" "de5abc10d43fe0d5f68c298f5a540ab2215b1f80256e3ad7e4e1dce3a628d294", kill_on_drop: false }`
[INFO] [stderr]    Compiling arduino_audio_stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `yield_now`
[INFO] [stdout]  --> src/main.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{sleep, spawn, yield_now};
[INFO] [stdout]   |                                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `LPF_STRENGTH`
[INFO] [stdout]   --> src/dfpwm.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const LPF_STRENGTH: i32 = 140;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DfpwmDecoder`
[INFO] [stdout]   --> src/dfpwm.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct DfpwmDecoder {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dfpwm.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn new() -> DfpwmDecoder {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decompress_byte`
[INFO] [stdout]   --> src/dfpwm.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn decompress_byte(&mut self, data: u8, output: &mut [i32; 8]) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decompress_byte`
[INFO] [stdout]   --> src/dfpwm.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn decompress_byte(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "de5abc10d43fe0d5f68c298f5a540ab2215b1f80256e3ad7e4e1dce3a628d294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de5abc10d43fe0d5f68c298f5a540ab2215b1f80256e3ad7e4e1dce3a628d294", kill_on_drop: false }`
[INFO] [stdout] de5abc10d43fe0d5f68c298f5a540ab2215b1f80256e3ad7e4e1dce3a628d294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7aa71af47ebb61af0360616bcb09fe6b706d71125e6e3e0d0710f3d9a6f8bbae
[INFO] running `Command { std: "docker" "start" "-a" "7aa71af47ebb61af0360616bcb09fe6b706d71125e6e3e0d0710f3d9a6f8bbae", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `yield_now`
[INFO] [stderr]  --> src/main.rs:9:33
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread::{sleep, spawn, yield_now};
[INFO] [stderr]   |                                 ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `LPF_STRENGTH`
[INFO] [stderr]   --> src/dfpwm.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const LPF_STRENGTH: i32 = 140;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DfpwmDecoder`
[INFO] [stderr]   --> src/dfpwm.rs:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub struct DfpwmDecoder {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/dfpwm.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn new() -> DfpwmDecoder {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `decompress_byte`
[INFO] [stderr]   --> src/dfpwm.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn decompress_byte(&mut self, data: u8, output: &mut [i32; 8]) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decompress_byte`
[INFO] [stderr]   --> src/dfpwm.rs:95:4
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn decompress_byte(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arduino_audio_stream-4348b8b380fade13)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7aa71af47ebb61af0360616bcb09fe6b706d71125e6e3e0d0710f3d9a6f8bbae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa71af47ebb61af0360616bcb09fe6b706d71125e6e3e0d0710f3d9a6f8bbae", kill_on_drop: false }`
[INFO] [stdout] 7aa71af47ebb61af0360616bcb09fe6b706d71125e6e3e0d0710f3d9a6f8bbae