/usr/lib/linux/4.15.0-46-generic/compiler is in linux-buildinfo-4.15.0-46-generic 4.15.0-46.49~16.04.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | GCC: (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
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