Jenkins job fails to remove directory -

i running make script(execute shell command option) inside jenkins job.
make script has rm -rf <directory name> shell command.
command fails error saying directory not empty. since script uses rm -rf should work if directory not empty.
not sure wrong here.
around appreciated.

if jenkins job executed on linux machine, b:

• a permission issue.
• a race condition issue (which why deleting files first idea. rm -rf delete empty folders)

on windows, check full error message: there resource preempted os (used process).