It would be good to keep the build directory though, since it's expected to exist, and it's easier to just download a module's source and compile it and test it.
- bug#32167: Kernel 'build' directory in the store is a ... pkill9
- bug#32167: Kernel 'build' directory in the store ... Nils Gillmann
- bug#32167: Kernel 'build' directory in the store ... pkill9
- bug#32167: Kernel 'build' directory in the st... Danny Milosavljevic
- bug#32167: Kernel 'build' directory in th... Mark H Weaver
- bug#32167: Kernel 'build' directory i... pkill9
- bug#32167: Kernel 'build' directory i... Ludovic Courtès