Ebuild 0.1.0 has a missing or malformed copyright/licensing header.
[Notice] Ebuild 0.1.0 has an invalid header. It should start with a valid copyright line (e.g., '# Copyright YEARS MAIN-CONTRIBUTOR') and the GPLv2 distribution text followed by an empty line.
[Warning] Ebuild 0.1.0 has a line exceeding 80 positions on line 7.
[Error] Manifest entry for unused DIST file 'xattr-0.1.0.tar.gz'
[Error] Repository is missing a repo-name in metadata/layout.conf or profiles/repo_name
[Notice] Package has only unstable keywords for arch(es): [ amd64 ], all versions are unstable: [ 0.1.0 ]
[Error] Invalid or missing metadata.xml: open dev-oberon/xattr/metadata.xml: file does not exist
Note: category 'dev-oberon' is not in the main gentoo categories list