[INFO] cloning repository https://github.com/realSuffix/sound_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realSuffix/sound_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrealSuffix%2Fsound_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrealSuffix%2Fsound_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a3a54f44ca60d3511771923a0e3858b6b079920
[INFO] testing realSuffix/sound_server against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrealSuffix%2Fsound_server" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/realSuffix/sound_server on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/realSuffix/sound_server
[INFO] finished tweaking git repo https://github.com/realSuffix/sound_server
[INFO] tweaked toml for git repo https://github.com/realSuffix/sound_server written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/realSuffix/sound_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ringbuf v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e5ce24545421bafa3e0925c6efbf392a70de77c1b9548ba45bc179eec66d3c4
[INFO] running `Command { std: "docker" "start" "-a" "6e5ce24545421bafa3e0925c6efbf392a70de77c1b9548ba45bc179eec66d3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e5ce24545421bafa3e0925c6efbf392a70de77c1b9548ba45bc179eec66d3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e5ce24545421bafa3e0925c6efbf392a70de77c1b9548ba45bc179eec66d3c4", kill_on_drop: false }`
[INFO] [stdout] 6e5ce24545421bafa3e0925c6efbf392a70de77c1b9548ba45bc179eec66d3c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d217b29dc14da2c0c1c72521de8ab456854fc0eb2c51dc0ba3e09ce105c3b18
[INFO] running `Command { std: "docker" "start" "-a" "9d217b29dc14da2c0c1c72521de8ab456854fc0eb2c51dc0ba3e09ce105c3b18", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]    Compiling ringbuf v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling sound_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/connection_handler.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut buffer = [0; 1024];
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connection_handler.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn handle(mut stream: TcpStream) {
[INFO] [stdout]    |                   ----^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connection_handler.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut buffer = [0; 1024];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.14s
[INFO] running `Command { std: "docker" "inspect" "9d217b29dc14da2c0c1c72521de8ab456854fc0eb2c51dc0ba3e09ce105c3b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d217b29dc14da2c0c1c72521de8ab456854fc0eb2c51dc0ba3e09ce105c3b18", kill_on_drop: false }`
[INFO] [stdout] 9d217b29dc14da2c0c1c72521de8ab456854fc0eb2c51dc0ba3e09ce105c3b18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1377275aafd17e0a7cd3326b8e1a2024a05a1b1be29f0c78659b8631c32b4327
[INFO] running `Command { std: "docker" "start" "-a" "1377275aafd17e0a7cd3326b8e1a2024a05a1b1be29f0c78659b8631c32b4327", kill_on_drop: false }`
[INFO] [stderr]    Compiling sound_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/connection_handler.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut buffer = [0; 1024];
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connection_handler.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn handle(mut stream: TcpStream) {
[INFO] [stdout]    |                   ----^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connection_handler.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut buffer = [0; 1024];
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "1377275aafd17e0a7cd3326b8e1a2024a05a1b1be29f0c78659b8631c32b4327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1377275aafd17e0a7cd3326b8e1a2024a05a1b1be29f0c78659b8631c32b4327", kill_on_drop: false }`
[INFO] [stdout] 1377275aafd17e0a7cd3326b8e1a2024a05a1b1be29f0c78659b8631c32b4327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f767f4aed532bcaa004e28c5c8f18ebf884de3b796153380c524e7c1de5aeafe
[INFO] running `Command { std: "docker" "start" "-a" "f767f4aed532bcaa004e28c5c8f18ebf884de3b796153380c524e7c1de5aeafe", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/connection_handler.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let mut buffer = [0; 1024];
[INFO] [stderr]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/connection_handler.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn handle(mut stream: TcpStream) {
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/connection_handler.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let mut buffer = [0; 1024];
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `sound_server` (bin "sound_server" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sound_server-a0c5df3b7b3c7c6f)
[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" "f767f4aed532bcaa004e28c5c8f18ebf884de3b796153380c524e7c1de5aeafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f767f4aed532bcaa004e28c5c8f18ebf884de3b796153380c524e7c1de5aeafe", kill_on_drop: false }`
[INFO] [stdout] f767f4aed532bcaa004e28c5c8f18ebf884de3b796153380c524e7c1de5aeafe