[INFO] crate uikit 0.0.2 is already in cache
[INFO] testing uikit-0.0.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate uikit 0.0.2 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate uikit 0.0.2 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate uikit 0.0.2
[INFO] finished tweaking crates.io crate uikit 0.0.2
[INFO] tweaked toml for crates.io crate uikit 0.0.2 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 85535850463c07d6771bd651c027d82943cd045baba8c758a44c15ac4d905258
[INFO] running `"docker" "start" "-a" "85535850463c07d6771bd651c027d82943cd045baba8c758a44c15ac4d905258"`
[INFO] [stderr]    Compiling core-foundation-sys v0.2.3
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling objc v0.2.6
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr] error: native frameworks are only available on macOS targets
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde v0.6.15
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `core-foundation-sys`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "85535850463c07d6771bd651c027d82943cd045baba8c758a44c15ac4d905258"`
[INFO] running `"docker" "rm" "-f" "85535850463c07d6771bd651c027d82943cd045baba8c758a44c15ac4d905258"`
[INFO] [stdout] 85535850463c07d6771bd651c027d82943cd045baba8c758a44c15ac4d905258