[INFO] cloning repository https://github.com/makr17/lightsine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/makr17/lightsine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakr17%2Flightsine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakr17%2Flightsine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 417fc71d16cde2d523f4255ec416205318d0812b
[INFO] testing makr17/lightsine against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakr17%2Flightsine" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/makr17/lightsine on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/makr17/lightsine
[INFO] finished tweaking git repo https://github.com/makr17/lightsine
[INFO] tweaked toml for git repo https://github.com/makr17/lightsine written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/makr17/lightsine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 913ab0c5753eb45c1d704282051e2b7f5cecd792918d1df85c7e7eb8d892c6cb
[INFO] running `Command { std: "docker" "start" "-a" "913ab0c5753eb45c1d704282051e2b7f5cecd792918d1df85c7e7eb8d892c6cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "913ab0c5753eb45c1d704282051e2b7f5cecd792918d1df85c7e7eb8d892c6cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "913ab0c5753eb45c1d704282051e2b7f5cecd792918d1df85c7e7eb8d892c6cb", kill_on_drop: false }`
[INFO] [stdout] 913ab0c5753eb45c1d704282051e2b7f5cecd792918d1df85c7e7eb8d892c6cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b6da462ef1d4e9c5cc5f114002db012bc8a10968dd9e81db9cbc9ce0d53fbb1
[INFO] running `Command { std: "docker" "start" "-a" "4b6da462ef1d4e9c5cc5f114002db012bc8a10968dd9e81db9cbc9ce0d53fbb1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling rustc-serialize v0.3.21
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling uuid v0.1.18
[INFO] [stderr]    Compiling sacn v0.1.1
[INFO] [stderr]    Compiling lightsine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_arith)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_arith` has been stable since 1.11.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_arith)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | /     loop {
[INFO] [stdout] 49 | |         t += 1;
[INFO] [stdout] 50 | |         lights.push(wave_value(&red,   t, max_amp));
[INFO] [stdout] 51 | |         lights.push(wave_value(&green, t, max_amp));
[INFO] [stdout] ...  |
[INFO] [stdout] 92 | |         sleep(refresh);
[INFO] [stdout] 93 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 99 |       dmx_source.terminate_stream(1);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightsine` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4b6da462ef1d4e9c5cc5f114002db012bc8a10968dd9e81db9cbc9ce0d53fbb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6da462ef1d4e9c5cc5f114002db012bc8a10968dd9e81db9cbc9ce0d53fbb1", kill_on_drop: false }`
[INFO] [stdout] 4b6da462ef1d4e9c5cc5f114002db012bc8a10968dd9e81db9cbc9ce0d53fbb1