Cross-compilation of async/await code trips compiler assertion

[kristoff-it]

Running the following command from macOS over this code:
https://gist.github.com/kristoff-it/5f0fe16708b74e464c39e6bde4c3664b
zig build-exe -target x86_64-linux test.zig

Causes the compilation to fail with the following error:

Code Generation [74/901] std.debug.DwarfInfo.parseAbbrevTable...Assertion failed at /Users/kristoff/zig/src/analyze.cpp:9037 in resolve_llvm_types. This is a bug in the Zig compiler.
Unable to dump stack trace: FileNotFound
[1]    74494 abort      zig build-exe -target x86_64-linux test.zig

The first part changes from run to run, but the error is always on line 9037.

The code depends on this repo https://github.com/kristoff-it/zig-okredis.