grep: unrecognized option `--perl-regex'
usage: grep [-abcDEFGHhIiJLlmnOoqRSsUVvwxZ] [-A num] [-B num] [-C[num]]
	[-e pattern] [-f file] [--binary-files=value] [--color=when]
	[--context[=num]] [--directories=action] [--label] [--line-buffered]
	[--null] [pattern] [file ...]
Building ver.: 0.0.
Packaging for: amd-64
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    CMAKE_INSTALL_BINDIR
    CMAKE_INSTALL_DATAROOTDIR
    CMAKE_INSTALL_INCLUDEDIR
    CMAKE_INSTALL_LIBDIR
    CMAKE_INSTALL_LIBEXECDIR
    CMAKE_INSTALL_OLDINCLUDEDIR
    CMAKE_INSTALL_SBINDIR


[HOOK - conan-center.py] post_package(): ERROR: [PACKAGE LICENSE (KB-H012)] No 'licenses' folder found in package: /Users/jenkins/w/cci_PR-3488@4/.conan/data/libyuv/cci.20201106/_/_/package/f06a7e65167c81c86e12b9f54c9926febbbaa27a  (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H012) 
ERROR: [HOOK - conan-center.py] post_package(): Some checks failed running the hook, check the output