Insufficient memory for the allocation during check(1, "Depth")

[d-torrance]

This has been happening a bunch recently in the continuous integration tests of the Debian package:

678s Depth
678s *****
679s  -- capturing check(0, "Depth")               -- 0.0440269 seconds elapsed
683s  -- capturing check(1, "Depth")              Insufficient memory for the allocation
683s 
683s  cd /tmp/M2-11030-0/83-rundir/; GC_MAXIMUM_HEAP_SIZE=400M "/usr/bin/M2-binary" --no-randomize --no-readline --silent --stop --print-width 77 <"/tmp/M2-11030-0/82.m2" >>"/tmp/M2-11030-0/82.tmp"
683s /tmp/M2-11030-0/82.tmp:0:1:(3):[5]: (output file) error: Macaulay2 exited with status code 1
683s /tmp/M2-11030-0/82.m2:0:1: (input file)
683s M2: *** Error 1

For example: https://ci.debian.net/packages/m/macaulay2/unstable/amd64/52384645/