[INFO] fetching crate iron-oxide 0.1.1...
[INFO] testing iron-oxide-0.1.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate iron-oxide 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate iron-oxide 0.1.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate iron-oxide 0.1.1
[INFO] finished tweaking crates.io crate iron-oxide 0.1.1
[INFO] tweaked toml for crates.io crate iron-oxide 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate iron-oxide 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39e00349ace555d9e68a48a8320593e207e2ecd1830ad907ad78609d7f83f99e
[INFO] running `"docker" "start" "-a" "39e00349ace555d9e68a48a8320593e207e2ecd1830ad907ad78609d7f83f99e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]    Compiling enumflags2 v0.6.4
[INFO] [stderr]    Compiling iron-oxide v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/device.rs:59:38
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub unsafe fn MTLCopyAllDevices() -> Vec<MTLDevice> {
[INFO] [stderr]    |               -----------------      ^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found `()`
[INFO] [stderr]    |               |
[INFO] [stderr]    |               implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::vec::Vec<device::MTLDevice>`
[INFO] [stderr]            found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `MacOS` found for enum `raw_window_handle::RawWindowHandle` in the current scope
[INFO] [stderr]   --> src/layer.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 |             RawWindowHandle::MacOS(handle) => {
[INFO] [stderr]    |                              ^^^^^ variant or associated item not found in `raw_window_handle::RawWindowHandle`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `iron-oxide`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "39e00349ace555d9e68a48a8320593e207e2ecd1830ad907ad78609d7f83f99e"`
[INFO] running `"docker" "rm" "-f" "39e00349ace555d9e68a48a8320593e207e2ecd1830ad907ad78609d7f83f99e"`
[INFO] [stdout] 39e00349ace555d9e68a48a8320593e207e2ecd1830ad907ad78609d7f83f99e