You seem to still have 'compress' in your .cnf file:
[01] Compressing, encrypting and streaming ./ibdata1
Since non-innodb files are not compressed in the stream, you can not use compress in this manner. I made the same mistake when reproducing this. It will fail the same way even with no encryption in this case...
There is still a problem though. Even with the compression removed I get the xtrabackup_55: Error writing file 'UNOPENED' (Errcode: 32) and .xbcrypt:xb_crypt_read_chunk: failed to read 65536 bytes for chunk payload at offset 0x10209.
This appears to be a netcat/pipe bufer over/under run issue. Still poking and prodding...
You seem to still have 'compress' in your .cnf file:
[01] Compressing, encrypting and streaming ./ibdata1
Since non-innodb files are not compressed in the stream, you can not use compress in this manner. I made the same mistake when reproducing this. It will fail the same way even with no encryption in this case...
There is still a problem though. Even with the compression removed I get the xtrabackup_55: Error writing file 'UNOPENED' (Errcode: 32) and .xbcrypt: xb_crypt_ read_chunk: failed to read 65536 bytes for chunk payload at offset 0x10209.
This appears to be a netcat/pipe bufer over/under run issue. Still poking and prodding...