[HOOK - attribute_checker.py] pre_export(): WARN: Conanfile doesn't have 'url'. It is recommended to add it as attribute
[HOOK - conan-center.py] pre_export(): ERROR: [RECIPE METADATA (KB-H003)] Conanfile doesn't have 'url' attribute.  (https://github.com/conan-io/conan-center-index/wiki/Error-Knowledge-Base#KB-H003) 
[HOOK - conan-center.py] pre_export(): ERROR: [NO AUTHOR (KB-H037)] Conanfile should not contain author. Remove 'author = "Bincrafters <bincrafters@gmail.com>"' (https://github.com/conan-io/conan-center-index/wiki/Error-Knowledge-Base#KB-H037) 
[HOOK - conan-center.py] pre_export(): ERROR: [CMAKE VERBOSE MAKEFILE (KB-H046)] The CMake definition 'set(CMAKE_VERBOSE_MAKEFILE ON)' is not allowed. Remove it from recipes/zimg/all/test_package/CMakeLists.txt. (https://github.com/conan-io/conan-center-index/wiki/Error-Knowledge-Base#KB-H046) 
ERROR: [HOOK - conan-center.py] pre_export(): Some checks failed running the hook, check the output