[INFO] cloning repository https://github.com/anzbert/rust_pi_metronome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anzbert/rust_pi_metronome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanzbert%2Frust_pi_metronome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanzbert%2Frust_pi_metronome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95091873bbdec31337786a9396800395d5492df4
[INFO] testing anzbert/rust_pi_metronome 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%2Fanzbert%2Frust_pi_metronome" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anzbert/rust_pi_metronome 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/anzbert/rust_pi_metronome
[INFO] finished tweaking git repo https://github.com/anzbert/rust_pi_metronome
[INFO] tweaked toml for git repo https://github.com/anzbert/rust_pi_metronome written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/anzbert/rust_pi_metronome 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]     Updating git repository `https://github.com/jmyhrman/ableton-link-rs`
[INFO] [stderr]     Updating git submodule `https://github.com/Ableton/link`
[INFO] [stderr]     Updating git submodule `https://github.com/chriskohlhoff/asio.git`
[INFO] [stderr]     Updating git repository `https://github.com/anzbert/rpi-ws281x-rust`
[INFO] [stderr]     Updating git submodule `https://github.com/jgarff/rpi_ws281x.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ad933650bef639ee8e432476edbcf70a92323168dfe7ded5f22cb4d5e8415a55
[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" "ad933650bef639ee8e432476edbcf70a92323168dfe7ded5f22cb4d5e8415a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad933650bef639ee8e432476edbcf70a92323168dfe7ded5f22cb4d5e8415a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad933650bef639ee8e432476edbcf70a92323168dfe7ded5f22cb4d5e8415a55", kill_on_drop: false }`
[INFO] [stdout] ad933650bef639ee8e432476edbcf70a92323168dfe7ded5f22cb4d5e8415a55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 2922e7df52ef0ec3886cd35a18fa54cf577837df42beab87bd72546d77314e6b
[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" "2922e7df52ef0ec3886cd35a18fa54cf577837df42beab87bd72546d77314e6b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling bindgen v0.59.1
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling spin_sleep v1.0.0
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling clang-sys v1.2.2
[INFO] [stderr]    Compiling libloading v0.7.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v1.0.0-alpha.5
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling rppal v0.13.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling cexpr v0.5.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ableton-link v0.1.0 (https://github.com/jmyhrman/ableton-link-rs#e7b9fc2e)
[INFO] [stderr]    Compiling rs_ws281x v0.4.2 (https://github.com/anzbert/rpi-ws281x-rust#887babf3)
[INFO] [stderr]    Compiling rust_pi_metronome v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `link`
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut link = lnk::init();
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_link`
[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/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut link = lnk::init();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "2922e7df52ef0ec3886cd35a18fa54cf577837df42beab87bd72546d77314e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2922e7df52ef0ec3886cd35a18fa54cf577837df42beab87bd72546d77314e6b", kill_on_drop: false }`
[INFO] [stdout] 2922e7df52ef0ec3886cd35a18fa54cf577837df42beab87bd72546d77314e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f03020c41c5068f5a87e0c24b307466f36b72b65b9ab33eddc54e86b6d01eecf
[INFO] running `Command { std: "docker" "start" "-a" "f03020c41c5068f5a87e0c24b307466f36b72b65b9ab33eddc54e86b6d01eecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_pi_metronome v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `link`
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut link = lnk::init();
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_link`
[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/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut link = lnk::init();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "f03020c41c5068f5a87e0c24b307466f36b72b65b9ab33eddc54e86b6d01eecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03020c41c5068f5a87e0c24b307466f36b72b65b9ab33eddc54e86b6d01eecf", kill_on_drop: false }`
[INFO] [stdout] f03020c41c5068f5a87e0c24b307466f36b72b65b9ab33eddc54e86b6d01eecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] da7c3b01d319621f33e1304b9005d12ab15136bf0e557342c12865c764cc3be5
[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" "da7c3b01d319621f33e1304b9005d12ab15136bf0e557342c12865c764cc3be5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `link`
[INFO] [stderr]  --> src/main.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut link = lnk::init();
[INFO] [stderr]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_link`
[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/main.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut link = lnk::init();
[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: `rust_pi_metronome` (bin "rust_pi_metronome" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_pi_metronome-8fc4928296859530)
[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" "da7c3b01d319621f33e1304b9005d12ab15136bf0e557342c12865c764cc3be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7c3b01d319621f33e1304b9005d12ab15136bf0e557342c12865c764cc3be5", kill_on_drop: false }`
[INFO] [stdout] da7c3b01d319621f33e1304b9005d12ab15136bf0e557342c12865c764cc3be5