These three files are what you are after: ``` # env-file /home/user/.opam/system/build/lwt.3.3.0/lwt-20643-ad6566.env # stdout-file /home/user/.opam/system/build/lwt.3.3.0/lwt-20643-ad6566.out # stderr-file /home/user/.opam/system/build/lwt.3.3.0/lwt-20643-ad6566.err ```