Ebuild 9999 has a missing or malformed copyright/licensing header.
[Warning] Ebuild 9999 uses a deprecated EAPI '5'. Consider upgrading to a newer EAPI.
[Warning] Ebuild 2.0.1 uses a deprecated EAPI '5'. Consider upgrading to a newer EAPI.
[Notice] Ebuild 9999 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.
[Notice] Ebuild 2.0.1 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 9999 has trailing whitespace on line 30.
[Warning] Ebuild 9999 has trailing whitespace on line 31.
[Warning] Ebuild 2.0.1 has a line exceeding 80 positions on line 12.
[Error] Ebuild dev-db/mysql_fdw/mysql_fdw-9999.ebuild attempts to install into invalid path '/extension' using 'insinto'.
[Notice] Package has only unstable keywords for arch(es): [ amd64 ], all versions are unstable: [ 2.0.1 ]
[Warning] Incorrect _md5_ in md5-cache for mysql_fdw-9999. Expected c2b33d846f50a5ba25f6a7038efdd1c3, got 224460b8ae6aa0ee03430940d0d460a3
[Error] Invalid or missing metadata.xml: open dev-db/mysql_fdw/metadata.xml: file does not exist