CI on macOS fails with something possibly related to rasterio/GDAL

[Nicklas Boserup]

There seems to be a problem with our CI tests on macOS. The following error occurs:

tests/conftest.py:13: in <module>
    import rasterio
/usr/local/miniconda/envs/terracotta/lib/python3.7/site-packages/rasterio/__init__.py:9: in <module>
    from rasterio._base import gdal_version
E   ImportError: dlopen(/usr/local/miniconda/envs/terracotta/lib/python3.7/site-packages/rasterio/_base.cpython-37m-darwin.so, 2): Library not loaded: @rpath/libfontconfig.1.dylib
E     Referenced from: /usr/local/miniconda/envs/terracotta/lib/libpoppler.117.0.0.dylib
E     Reason: Incompatible library version: libpoppler.117.dylib requires version 14.0.0 or later, but libfontconfig.1.dylib provides version 13.0.0
Error: Process completed with exit code 4.

which seems unrelated to any code changes.

I just noticed it -- I have not looked into it yet.

[Dion Häfner]

Looks like something is broken in conda-forge. Let's wait a couple of days to let it sort itself out.