[INFO] fetching crate axe_fx_midi 0.1.0...
[INFO] checking axe_fx_midi-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate axe_fx_midi 0.1.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate axe_fx_midi 0.1.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate axe_fx_midi 0.1.0
[INFO] finished tweaking crates.io crate axe_fx_midi 0.1.0
[INFO] tweaked toml for crates.io crate axe_fx_midi 0.1.0 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3da5367d8f815a36e1896b31b5c2d9ae2eb1557566c6f34915d998496a6377e2
[INFO] running `Command { std: "docker" "start" "-a" "3da5367d8f815a36e1896b31b5c2d9ae2eb1557566c6f34915d998496a6377e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3da5367d8f815a36e1896b31b5c2d9ae2eb1557566c6f34915d998496a6377e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3da5367d8f815a36e1896b31b5c2d9ae2eb1557566c6f34915d998496a6377e2", kill_on_drop: false }`
[INFO] [stdout] 3da5367d8f815a36e1896b31b5c2d9ae2eb1557566c6f34915d998496a6377e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd96de8aad867691cbf9a5a1f4524920ba51a126a72fecf38487f5e3784d1d10
[INFO] running `Command { std: "docker" "start" "-a" "cd96de8aad867691cbf9a5a1f4524920ba51a126a72fecf38487f5e3784d1d10", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling core-foundation-sys v0.2.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling coremidi-sys v2.0.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking axe_fx_midi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `FractalModel`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub extern "C" fn get_preset_number(model: FractalModel) -> MidiMessage {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]    = note: enum has no representation hint
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/parse.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / pub enum FractalModel {
[INFO] [stdout] 5  | |     Standard,
[INFO] [stdout] 6  | |     Ultra,
[INFO] [stdout] 7  | |     MFC101,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     III,
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Vec<u8>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:63:61
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub extern "C" fn get_preset_number(model: FractalModel) -> MidiMessage {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stdout] error: native frameworks are only available on macOS targets
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core-foundation-sys` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cd96de8aad867691cbf9a5a1f4524920ba51a126a72fecf38487f5e3784d1d10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd96de8aad867691cbf9a5a1f4524920ba51a126a72fecf38487f5e3784d1d10", kill_on_drop: false }`
[INFO] [stdout] cd96de8aad867691cbf9a5a1f4524920ba51a126a72fecf38487f5e3784d1d10