Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

Backtrace for this error:
#0  0x15555459d7a2 in ???
#1  0x15555459c935 in ???
#2  0x15555384e5af in ???
#3  0x6f5c81 in __rotation_mix_info_MOD_set_rotation_mixing_info._omp_fn.0
	at private/rotation_mix_info.f90:207
#4  0x1555553847a1 in ???
#5  0x6f9caa in __rotation_mix_info_MOD_set_rotation_mixing_info
	at private/rotation_mix_info.f90:110
#6  0x62cc7a in __mix_info_MOD_update_rotation_mixing_info
	at private/mix_info.f90:1589
#7  0x63385c in __mix_info_MOD_set_mixing_info
	at private/mix_info.f90:293
#8  0x60081e in __hydro_vars_MOD_set_hydro_vars
	at private/hydro_vars.f90:622
#9  0x603752 in __hydro_vars_MOD_update_vars
	at private/hydro_vars.f90:248
#10  0x603d06 in set_some_vars
	at private/hydro_vars.f90:201
#11  0x604188 in __hydro_vars_MOD_set_vars
	at private/hydro_vars.f90:93
#12  0x5cbd04 in set_start_of_step_info
	at private/evolve.f90:1780
#13  0x5d32de in prepare_for_new_step
	at private/evolve.f90:1895
#14  0x5d32de in do_step_part1
	at private/evolve.f90:384
#15  0x5d32de in __evolve_MOD_do_evolve_step_part1
	at private/evolve.f90:77
#16  0x4c29d1 in __star_lib_MOD_star_evolve_step_part1
	at public/star_lib.f90:577
#17  0x42c2f0 in __run_binary_support_MOD_do_run1_binary
	at private/run_binary_support.f90:448
#18  0x40a1dc in __binary_lib_MOD_run1_binary
	at public/binary_lib.f90:76
#19  0x40984e in __run_binary_MOD_do_run_binary
	at /mnt/home/pmocz/ceph/mesa-git-tests/tmp.SUxd5HNI20/binary/job/run_binary.f90:7
#20  0x406f7b in binary_run
	at src/binary_run.f90:6
#21  0x406f7b in main
	at src/binary_run.f90:2
make: *** [/mnt/home/pmocz/ceph/mesa-git-tests/tmp.SUxd5HNI20/binary/work/Makefile:18: run] Floating point exception (core dumped)