Because the operating system kills the process due to lack of memory. As of now, cpan requires 363 MiB (virt)/298 MiB (res).

In reply to Re: cpan runs "out of memory" when doing "reload index". Suddenly. Why? by daxim
in thread cpan runs "out of memory" when doing "reload index". Suddenly. Why? by locked_user sundialsvc4

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