rust: upgrade `rand*` crates
`test-check-cargo-lock.t` is failing for me and I was hoping this
would help. It doesn't, but we might as well take the upgrade now that
I've done the (small amount of) work for it.
Differential Revision: https://phab.mercurial-scm.org/D12000
#require docutils gettext
Error: the current ro localization has some rst defects exposed by
moving pager to core. These two warnings about references are expected
until the localization is corrected.
$ $TESTDIR/check-gendoc ro
checking for parse errors
gendoc.txt:58: (WARNING/2) Inline interpreted text or phrase reference start-string without end-string.
gendoc.txt:58: (WARNING/2) Inline interpreted text or phrase reference start-string without end-string.