/usr/ is in libroscpp-core-dev 0.5.6-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/roscpp_traits.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/cpp_common.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/rostime.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/roscpp_serialization.pc
/usr/include/
/usr/include/ros/
/usr/include/ros/rate.h
/usr/include/ros/datatypes.h
/usr/include/ros/serialization.h
/usr/include/ros/header.h
/usr/include/ros/cpp_common_decl.h
/usr/include/ros/service_traits.h
/usr/include/ros/message_operations.h
/usr/include/ros/debug.h
/usr/include/ros/serialized_message.h
/usr/include/ros/message_event.h
/usr/include/ros/impl/
/usr/include/ros/impl/duration.h
/usr/include/ros/impl/time.h
/usr/include/ros/message_forward.h
/usr/include/ros/duration.h
/usr/include/ros/exception.h
/usr/include/ros/message_traits.h
/usr/include/ros/builtin_message_traits.h
/usr/include/ros/types.h
/usr/include/ros/macros.h
/usr/include/ros/roscpp_serialization_macros.h
/usr/include/ros/platform.h
/usr/include/ros/time.h
/usr/include/ros/rostime_decl.h
/usr/share/
/usr/share/cpp_common/
/usr/share/cpp_common/cmake/
/usr/share/cpp_common/cmake/cpp_commonConfig-version.cmake
/usr/share/cpp_common/cmake/cpp_commonConfig.cmake
/usr/share/cpp_common/package.xml
/usr/share/rostime/
/usr/share/rostime/cmake/
/usr/share/rostime/cmake/rostimeConfig.cmake
/usr/share/rostime/cmake/rostimeConfig-version.cmake
/usr/share/rostime/package.xml
/usr/share/roscpp_serialization/
/usr/share/roscpp_serialization/cmake/
/usr/share/roscpp_serialization/cmake/roscpp_serializationConfig.cmake
/usr/share/roscpp_serialization/cmake/roscpp_serializationConfig-version.cmake
/usr/share/roscpp_serialization/package.xml
/usr/share/doc/
/usr/share/doc/libroscpp-core-dev/
/usr/share/doc/libroscpp-core-dev/copyright
/usr/share/roscpp_traits/
/usr/share/roscpp_traits/cmake/
/usr/share/roscpp_traits/cmake/roscpp_traitsConfig-version.cmake
/usr/share/roscpp_traits/cmake/roscpp_traitsConfig.cmake
/usr/share/roscpp_traits/package.xml
/usr/lib/x86_64-linux-gnu/libcpp_common.so
/usr/lib/x86_64-linux-gnu/libroscpp_serialization.so
/usr/lib/x86_64-linux-gnu/librostime.so
/usr/share/doc/libroscpp-core-dev/changelog.Debian.gz