Just ignore the -debug package.
If you're curious what this is: At the end of the build process, the binaries are stripped. The stripped binaries are placed to /usr/bin, and a separate -debug package with unstripped versions is created. The unstripped binaries are placed to /usr/lib/debug/usr/bin. If you install the -debug package and run amuled with gdb, it will use the unstripped ones.
If you don't know what the difference between a stripped and an unstripped binary is, just ignore it.