Tests fail during build from AUR

I’ve been using Kopia successfully for a while, but I have been unable to update to the latest version. I’ve been using the package on the Arch User Repository, but lately it has failed to build:
=== Failed
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore/buf_trailing_bytes (0.00s)
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore/buf_trailing_hole (0.00s)
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore/buf_hole_on_buf_boundary (0.00s)
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore/blk_hole_aligned (0.00s)
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore/blk_alternating_empty (0.11s)
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore/blk_alternating_zero (0.08s)
=== FAIL: tests/end_to_end_test TestSnapshotSparseRestore (0.98s)
There seem to be a few other people on AUR with the same issue. I searched the forum and don’t see anything similar (apologies if it’s there and I missed it).
Anyone have any thoughts how I might go about resolving?

Thanks!