I'm afraid I'm bad at diagnosing this kind of thing, but here is an example log: https://gitlab.torproject.org/tpo/core/arti/-/jobs/544060 The first problem I can see is that libsqlite3 complains about missing c++ headers: ``` The following warnings were emitted during compilation: warning: libsqlite3-sys@0.28.0: osxcross: error: cannot find libc++ headers warning: libsqlite3-sys@0.28.0: osxcross: error: while detecting target error: failed to run custom build command for `libsqlite3-sys v0.28.0` ``` And then, I see: ``` warning: build failed, waiting for other jobs to finish... The following warnings were emitted during compilation: warning: lzma-sys@0.1.20: osxcross: error: cannot find libc++ headers warning: lzma-sys@0.1.20: osxcross: error: while detecting target ``` This seems related to an earlier warning: ``` Given SDK does not contain libc++ headers (-stdlib=libc++ test may fail) You may want to re-package your SDK using 'tools/gen_sdk_package.sh' on macOS ``` cc @trinity-1686a