=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for ocaml-lwt_camlp4-20180325nb4
File "src/jbuild", line 1, characters 0-0:
Warning: jbuild files are deprecated, please convert this file to a dune file
instead.
Note: You can use "dune upgrade" to convert your project to dune.
File "src/log/jbuild", line 1, characters 0-0:
Warning: jbuild files are deprecated, please convert this file to a dune file
instead.
Note: You can use "dune upgrade" to convert your project to dune.
File "src/options/jbuild", line 1, characters 0-0:
Warning: jbuild files are deprecated, please convert this file to a dune file
instead.
Note: You can use "dune upgrade" to convert your project to dune.
Error: Multiple rules generated for _build/default/META.lwt_camlp4:
- file present in source tree
- <internal location>
Hint: rm -f META.lwt_camlp4
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/devel/ocaml-lwt_camlp4
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/devel/ocaml-lwt_camlp4