[INFO] updating cached repository dirk/Mountain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dirk/Mountain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dirk/Mountain" "work/ex/beta-1.38-1/sources/1.37.0/gh/dirk/Mountain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dirk/Mountain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dirk/Mountain" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dirk/Mountain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dirk/Mountain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 964cc35268e8eb04f8c87adb429ad476e621cbaa
[INFO] sha for GitHub repo dirk/Mountain: 964cc35268e8eb04f8c87adb429ad476e621cbaa
[INFO] validating manifest of dirk/Mountain on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dirk/Mountain on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dirk/Mountain
[INFO] finished frobbing dirk/Mountain
[INFO] frobbed toml for dirk/Mountain written to work/ex/beta-1.38-1/sources/1.37.0/gh/dirk/Mountain/Cargo.toml
[INFO] started frobbing dirk/Mountain
[INFO] finished frobbing dirk/Mountain
[INFO] frobbed toml for dirk/Mountain written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dirk/Mountain/Cargo.toml
[INFO] crate dirk/Mountain already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dirk/Mountain against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dirk/Mountain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 35e15932cfe1429e0077da247193d3c7d891ae08148e52353349c0050ebdc12d
[INFO] running `"docker" "start" "-a" "35e15932cfe1429e0077da247193d3c7d891ae08148e52353349c0050ebdc12d"`
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling cmake v0.1.20
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.3
[INFO] [stderr]    Compiling freetype v0.1.3 (https://github.com/servo/rust-freetype?rev=26c523b#26c523bf)
[INFO] [stderr]    Compiling mntn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `objc`
[INFO] [stderr]  --> src/main.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[macro_use] extern crate objc;
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `mntn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "35e15932cfe1429e0077da247193d3c7d891ae08148e52353349c0050ebdc12d"`
[INFO] running `"docker" "rm" "-f" "35e15932cfe1429e0077da247193d3c7d891ae08148e52353349c0050ebdc12d"`
[INFO] [stdout] 35e15932cfe1429e0077da247193d3c7d891ae08148e52353349c0050ebdc12d