Segmentation fault on Mac OS X

checkasm:
 - Random seed: 693048891
Bad C:
 - generic.identity           [OK]
 - generic.overwrite_left     [EXPECTED]
 - generic.overwrite_right    [EXPECTED]
 - generic.underwrite         [EXPECTED]
 - generic.segfault           [EXPECTED]
 - generic.check_declare      [EXPECTED]
Generic aarch64:
 - aarch64.clobber_x          [OK]
 - aarch64.clobber_d          [OK]
 - aarch64.clobber_d          [OK]
 - aarch64.clobber_v_upper    [OK]
 - aarch64.clobber_stack_args [OK]
zsh: segmentation fault  ./build-macosx/tests/checkasm

Manually commenting out clobber_stack_args prevents the segfault from occurring. I have no idea why the machine used for CI builds appears to be OK.