FAILED (error-enabled warnings) opam => [build omake-mode.1.0 OCamlPro/opam-repository:master with 4.01.0 on Linux (ppc64)]

/github/OCamlPro/opam-repository/task/14443
FAILED (could not retrieve <http://ocsigen.org/download/deriving-ocsigen-0.3c.tar.gz>) opam => [build deriving-ocsigen.0.3c OCamlPro/opam-repository:master with 4.01.0 on FreeBSD (i386)]

/github/OCamlPro/opam-repository/task/14179