crane: invalid tar header when flattening an image #1622
Description
Describe the bug
Flattening (some) OCI images fails with the following error:
$ crane flatten docker.io/svvac/test-images:crane-flatten
2023/04/04 13:59:34 pushed blob: sha256:5d6ac85655e6f0fd2304784a31b458b0d10fd6ab199dd28665c30b0b8b5adfcd
2023/04/04 13:59:36 flattening docker.io/svvac/test-images:crane-flatten: uploading layer: Patch "https://index.docker.io/v2/svvac/test-images/blobs/uploads/e19d011a-6a83-4845-a803-89a2257cac7c?_state=<snip>": reading tar: archive/tar: invalid tar headerTo Reproduce
Attempt to flatten the image at docker.io/svvac/test-images:crane-flatten (image is public)
Image generation
$ cat >Dockerfile <<EOF
FROM alpine
RUN echo yolo
RUN apk add bash
RUN echo end
EOF
$ docker buildx build --push --tag docker.io/svvac/test-images:crane-flattenExpected behavior
The image gets flattened
Additional context
Other commands (pull, copy, etc.) work as expected.
crane version0.14.0- Registry : Docker hub