The following actions will be performed:
  - install nlopt-ocaml 0.4

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[nlopt-ocaml: http] Command started
[nlopt-ocaml: http] Command started
[nlopt-ocaml.0.4] https://bitbucket.org/mkur/nlopt-ocaml/get/release-0.4.tar.gz downloaded

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[nlopt-ocaml: ocaml setup.ml] Command started
+ ocaml "setup.ml" "-configure" "--prefix" "/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/build/nlopt-ocaml.0.4)
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-11:
- Error: This expression has type string but an expression was expected of type
-          bytes
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-11:
- Error: This expression has type string but an expression was expected of type
-          bytes
[ERROR] The compilation of nlopt-ocaml failed at "ocaml setup.ml -configure
        --prefix
        /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73".
[nlopt-ocaml: ocamlfind remove] Command started
+ ocamlfind "remove" "nlopt" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/build/nlopt-ocaml.0.4)
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-11:
- Error: This expression has type string but an expression was expected of type
-          bytes
- ocamlfind: [WARNING] No such file: /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/lib/nlopt/META
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-11:
- Error: This expression has type string but an expression was expected of type
-          bytes
- ocamlfind: [WARNING] No such file: /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/lib/nlopt/META

#=== ERROR while installing nlopt-ocaml.0.4 ===================================#
# opam-version         1.2.2+dd (3852ba0a7708d4dc37f64dd4cd00f873bf317ac0)
# os                   linux
# command              ocaml setup.ml -configure --prefix /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73
# path                 /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/build/nlopt-ocaml.0.4
# compiler             4.07.0+24fac73
# exit-code            2
# env-file             /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/build/nlopt-ocaml.0.4/nlopt-ocaml-3397.env
# stdout-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/build/nlopt-ocaml.0.4/nlopt-ocaml-3397.out
# stderr-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+24fac73/dotopam/4.07.0+24fac73/build/nlopt-ocaml.0.4/nlopt-ocaml-3397.out
### stdout ###
# File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-26:
# Warning 3: deprecated: Stdlib.String.set
# Use Bytes.set instead.
# File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-11:
# Error: This expression has type string but an expression was expected of type
#          bytes
### stderr ###
# File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-26:
# Warning 3: deprecated: Stdlib.String.set
# Use Bytes.set instead.
# File "/Users/mkur/.opam/system/build/oasis.0.3.0/src/oasis/OASISString.ml", line 118, characters 8-11:
# Error: This expression has type string but an expression was expected of type
#          bytes



=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The following actions failed
  - install nlopt-ocaml 0.4
No changes have been performed

=-=- nlopt-ocaml.0.4 troobleshooting =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
=> This package relies on external (system) dependencies that may be missing.
   `opam depext nlopt-ocaml.0.4' may help you find the correct installation for
   your system.
'opam install nlopt-ocaml.0.4' failed.