The end of the log looks like this:
--------------
... fail_compilation\warn12809.d -verrors=0 -o- -w ()
... fail_compilation\widechars.d -verrors=0 ()!!! [DISABLED on win32]
... fail_compilation\warn13679.d -verrors=0 -w ()
... fail_compilation\warn7444.d -verrors=0 -w ()
... dshell/dll.d
!!! dshell/dll.d is disabled!
... dshell/cpp_header_gen.d
!!! dshell/cpp_header_gen.d is disabled!
... dshell/depsprot.d
... dshell/issue20444_SOURCE_DATE_EPOCH.d
... dshell/linker_flag_with_spaces.d
!!! dshell/linker_flag_with_spaces.d is disabled!
... dshell/test6952.d
!!! dshell/test6952.d is disabled!
... dshell/test9377.d
... dshell/sameenv.d
... dshell/test_shared.d
!!! dshell/test_shared.d is disabled!
timed out after 3600 seconds, step failed
---------------
Can't tell which test hung because these thousand or so tests are run in multiple threads and it doesn't say which hung.