[INFO] cloning repository https://github.com/orlp/synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/orlp/synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forlp%2Fsynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forlp%2Fsynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30122cb14b0959ca159456bca2b052fe0e02bad4
[INFO] testing orlp/synth against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forlp%2Fsynth" "/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/orlp/synth on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/orlp/synth
[INFO] finished tweaking git repo https://github.com/orlp/synth
[INFO] tweaked toml for git repo https://github.com/orlp/synth written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/orlp/synth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2138950fdf524dca6d160c6722a5c7a7a40af6ce4c899771e45bec551ca07d1b
[INFO] running `Command { std: "docker" "start" "-a" "2138950fdf524dca6d160c6722a5c7a7a40af6ce4c899771e45bec551ca07d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2138950fdf524dca6d160c6722a5c7a7a40af6ce4c899771e45bec551ca07d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2138950fdf524dca6d160c6722a5c7a7a40af6ce4c899771e45bec551ca07d1b", kill_on_drop: false }`
[INFO] [stdout] 2138950fdf524dca6d160c6722a5c7a7a40af6ce4c899771e45bec551ca07d1b
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f0f6ffa34f8e5e4cc7752db0b4ac8f9719a2d26bb41d5030be7a915aff2d5a3
[INFO] running `Command { std: "docker" "start" "-a" "4f0f6ffa34f8e5e4cc7752db0b4ac8f9719a2d26bb41d5030be7a915aff2d5a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cpal v0.13.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling memalloc v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling slotmap v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling alsa v0.4.3
[INFO] [stderr]    Compiling midir v0.7.0
[INFO] [stderr]    Compiling midly v0.5.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling synth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `*mut alsa_sys::_snd_seq` cannot be shared between threads safely
[INFO] [stdout]   --> src/midi.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 Err(err) => Err(err.into()),
[INFO] [stdout]    |                                     ^^^^ `*mut alsa_sys::_snd_seq` cannot be shared between threads safely
[INFO] [stdout]    |
[INFO] [stdout]    = help: within `ConnectError<MidiInput>`, the trait `Sync` is not implemented for `*mut alsa_sys::_snd_seq`
[INFO] [stdout]    = note: required because it appears within the type `alsa::seq::Seq`
[INFO] [stdout]    = note: required because it appears within the type `std::option::Option<alsa::seq::Seq>`
[INFO] [stdout]    = note: required because it appears within the type `midir::backend::alsa::MidiInput`
[INFO] [stdout]    = note: required because it appears within the type `MidiInput`
[INFO] [stdout]    = note: required because it appears within the type `ConnectError<MidiInput>`
[INFO] [stdout]    = note: required because of the requirements on the impl of `From<ConnectError<MidiInput>>` for `anyhow::Error`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Into<anyhow::Error>` for `ConnectError<MidiInput>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Cell<bool>` cannot be shared between threads safely
[INFO] [stdout]   --> src/midi.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 Err(err) => Err(err.into()),
[INFO] [stdout]    |                                     ^^^^ `Cell<bool>` cannot be shared between threads safely
[INFO] [stdout]    |
[INFO] [stdout]    = help: within `ConnectError<MidiInput>`, the trait `Sync` is not implemented for `Cell<bool>`
[INFO] [stdout]    = note: required because it appears within the type `alsa::seq::Seq`
[INFO] [stdout]    = note: required because it appears within the type `std::option::Option<alsa::seq::Seq>`
[INFO] [stdout]    = note: required because it appears within the type `midir::backend::alsa::MidiInput`
[INFO] [stdout]    = note: required because it appears within the type `MidiInput`
[INFO] [stdout]    = note: required because it appears within the type `ConnectError<MidiInput>`
[INFO] [stdout]    = note: required because of the requirements on the impl of `From<ConnectError<MidiInput>>` for `anyhow::Error`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Into<anyhow::Error>` for `ConnectError<MidiInput>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synth`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4f0f6ffa34f8e5e4cc7752db0b4ac8f9719a2d26bb41d5030be7a915aff2d5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0f6ffa34f8e5e4cc7752db0b4ac8f9719a2d26bb41d5030be7a915aff2d5a3", kill_on_drop: false }`
[INFO] [stdout] 4f0f6ffa34f8e5e4cc7752db0b4ac8f9719a2d26bb41d5030be7a915aff2d5a3
