LANG=en_US.utf8 sort -k3 panics

[df7cb]

Using Ubuntu 26.04 resolute's rust-coreutils 0.6.0-0ubuntu1, I'm getting this:

$ LANG=en_US.utf8 sort -k3 <<EOF
18  main    5433 down   postgres /var/lib/postgresql/18/main /var/log/postgresql/postgresql-18-main.log
18  new1    5435 down   postgres /var/lib/postgresql/18/new1 /var/log/postgresql/postgresql-18-new1.log
18  new2    5436 down   postgres /var/lib/postgresql/18/new2 /var/log/postgresql/postgresql-18-new2.log
EOF

thread '<unnamed>' panicked at src/uucore/src/lib/features/i18n/collator.rs:85:14:
Collator was not initialized
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Aborted                    (core dumped) LANG=en_US.utf8 sort -k3 <<EOF

(Test case from the postgresql-common testsuite, t/090_multicluster.t.)