GC Warning: Out of Memory!  Returning NIL!
(followed by a longer pause)
Segmentation fault

For 'lynx_die1.html' results are as that:

GC Warning: Repeated allocation of very large block (appr. size
56135680):May

and it goes apparently into an infinite loop hard to kill.
This is a regression as w3m-0.3.1-4.7x.1, for example, responds
with "No Line" and that is it. 'w3m -dump lynx_die1.html' is more
informative:

GC Warning: Repeated allocation of very large block (appr. size 1019904):
	May lead to memory leak and poor performance.
GC Warning: Repeated allocation of very large block (appr. size 3039232):
	May lead to memory leak and poor performance.
GC Warning: Repeated allocation of very large block (appr. size 10878976):
	May lead to memory leak and poor performance.
GC Warning: Repeated allocation of very large block (appr. size 32485376):
	May lead to memory leak and poor performance.
GC Warning: Repeated allocation of very large block (appr. size 96997376):
	May lead to memory leak and poor performance.
.
.
.
.
.