[INFO] fetching crate iron-oxide 0.1.1...
[INFO] testing iron-oxide-0.1.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate iron-oxide 0.1.1 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate iron-oxide 0.1.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-55/source/Cargo.toml
[INFO] crate crates.io crate iron-oxide 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 520e7a1babe542756f0ef07a53151142617bbe4d3af2daa1dfd33df2be4336ca
[INFO] running `Command { std: "docker" "start" "-a" "520e7a1babe542756f0ef07a53151142617bbe4d3af2daa1dfd33df2be4336ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "520e7a1babe542756f0ef07a53151142617bbe4d3af2daa1dfd33df2be4336ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "520e7a1babe542756f0ef07a53151142617bbe4d3af2daa1dfd33df2be4336ca", kill_on_drop: false }`
[INFO] [stdout] 520e7a1babe542756f0ef07a53151142617bbe4d3af2daa1dfd33df2be4336ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53f222fc0cf49a6a57fb22199a3cfdb2c5bc398fc612cbb77a83b51a4eb03a38
[INFO] running `Command { std: "docker" "start" "-a" "53f222fc0cf49a6a57fb22199a3cfdb2c5bc398fc612cbb77a83b51a4eb03a38", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling quote v1.0.4
[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] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/device.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub unsafe fn MTLCopyAllDevices() -> Vec<MTLDevice> {
[INFO] [stdout]    |               -----------------      ^^^^^^^^^^^^^^ expected struct `Vec`, found `()`
[INFO] [stdout]    |               |
[INFO] [stdout]    |               implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<device::MTLDevice>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `MacOS` found for enum `RawWindowHandle` in the current scope
[INFO] [stdout]   --> src/layer.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 |             RawWindowHandle::MacOS(handle) => {
[INFO] [stdout]    |                              ^^^^^ variant or associated item not found in `RawWindowHandle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-oxide` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "53f222fc0cf49a6a57fb22199a3cfdb2c5bc398fc612cbb77a83b51a4eb03a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53f222fc0cf49a6a57fb22199a3cfdb2c5bc398fc612cbb77a83b51a4eb03a38", kill_on_drop: false }`
[INFO] [stdout] 53f222fc0cf49a6a57fb22199a3cfdb2c5bc398fc612cbb77a83b51a4eb03a38