The following actions will be performed:
  - install itv-tree 2.0

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[itv-tree: http] Command started
[itv-tree: http] Command started
[itv-tree.2.0] https://github.com/UnixJunkie/interval-tree/archive/v2.0.tar.gz downloaded

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[itv-tree: ocaml setup.ml] Command started
+ ocaml "setup.ml" "-configure" "--prefix" "/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/itv-tree.2.0)
- File "./setup.ml", line 247, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "./setup.ml", line 247, characters 8-11:
- Error: This expression has type string but an expression was expected of type
-          bytes
- File "./setup.ml", line 247, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "./setup.ml", line 247, characters 8-11:
- Error: This expression has type string but an expression was expected of type
-          bytes
[ERROR] The compilation of itv-tree failed at "ocaml setup.ml -configure
        --prefix
        /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051".
[itv-tree: ocamlfind remove] Command started
+ ocamlfind "remove" "itv-tree" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/itv-tree.2.0)
- File "./setup.ml", line 247, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "./setup.ml", line 247, 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+pr2051/dotopam/4.07.0+pr2051/lib/itv-tree/META
- File "./setup.ml", line 247, characters 8-26:
- Warning 3: deprecated: Stdlib.String.set
- Use Bytes.set instead.
- File "./setup.ml", line 247, 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+pr2051/dotopam/4.07.0+pr2051/lib/itv-tree/META

#=== ERROR while installing itv-tree.2.0 ======================================#
# opam-version         1.2.2+dd (3852ba0a7708d4dc37f64dd4cd00f873bf317ac0)
# os                   linux
# command              ocaml setup.ml -configure --prefix /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051
# path                 /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/itv-tree.2.0
# compiler             4.07.0+pr2051
# exit-code            2
# env-file             /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/itv-tree.2.0/itv-tree-12768.env
# stdout-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/itv-tree.2.0/itv-tree-12768.out
# stderr-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/itv-tree.2.0/itv-tree-12768.out
### stdout ###
# File "./setup.ml", line 247, characters 8-26:
# Warning 3: deprecated: Stdlib.String.set
# Use Bytes.set instead.
# File "./setup.ml", line 247, characters 8-11:
# Error: This expression has type string but an expression was expected of type
#          bytes
### stderr ###
# File "./setup.ml", line 247, characters 8-26:
# Warning 3: deprecated: Stdlib.String.set
# Use Bytes.set instead.
# File "./setup.ml", line 247, characters 8-11:
# Error: This expression has type string but an expression was expected of type
#          bytes



=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The following actions failed
  - install itv-tree 2.0
No changes have been performed
'opam install itv-tree.2.0' failed.