I tried that, and got…mixed results.
The build finished properly when I ran it on master, but master is calling itself version 1.8.0, and FastAI apparently isn’t compatible with that version…it’s expecting 1.6. I tried loading it anyway, and it exceptions with an error about “FakeLoader” not having a “persistent_workers” attribute.
If I checkout the v1.6.0 tag, the build fails with errors like:
../caffe2/quantization/server/conv_dnnlowp_op.cc:1211:55: error: ‘depthwise_3x3x3_per_channel_quantization_pad_1’ was not declared in this scope
         depthwise_3x3x3_per_channel_quantization_pad_1(

Is there something special I should be doing to build 1.6 instead of master?
Thanks again for the help.