post-build step Upload to niks3: ok
time=2026-09-16T11:10:03.519Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (101 already cached)"
time=2026-09-16T11:10:03.519Z level=INFO msg="Uploading mhx6dmg6whr7c85krk9rjwjsxrp9iggs-gcc-15.3.0 (247.5MB)"
time=2026-09-16T11:12:28.808Z level=ERROR msg="Failed to close zstd encoder" error="io: read/write on closed pipe"
time=2026-09-16T11:12:28.810Z level=INFO msg="Uploading 7 narinfos"
time=2026-09-16T11:12:29.517Z level=INFO msg="Upload complete. (2m27.257s)"