src,permission: add debug log on is_tree_granted #797

Job	Run time
Build slim tarball	1m 27s
aarch64-linux: with shared libraries	23m 51s
aarch64-darwin: with shared libraries	26m 54s
x86_64-darwin: with shared libraries	38m 11s
x86_64-linux: with shared libraries	27m 18s
	1h 57m 41s

Provide feedback