sample crash:

thread 'rocket-worker-thread' panicked at 'called Result::unwrap() on an Err value: Io(Io(Custom { kind: Other, error: "bytes remaining on stream" }))', /mnt/nfs/labstore-secondary-tools-project/fast-ec/fast-ec/www/rust/src/queries.rs:466:21

a7f8fac0 was deployed at that time, see https://gitlab.wikimedia.org/toolforge-repos/fast-ec/-/blob/a7f8fac0a2d9b42c8e9aedb9bea2e683741b776b/www/rust/src/queries.rs#L466

quick search - could be from tokei internals?