=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
===> Building for ocaml-ppx_fields_conv-0.12.0
File "src/dune", line 2, characters 70-76:
2 |  (kind ppx_deriver) (ppx_runtime_libraries fieldslib) (libraries base ppxlib)
                                                                          ^^^^^^
Error: Library "ppxlib" not found.
Hint: try: dune external-lib-deps --missing -j 4 --profile release @install
File "src/dune", line 3, characters 18-33:
3 |  (preprocess (pps ppxlib.metaquot)))
                      ^^^^^^^^^^^^^^^
Error: Library "ppxlib.metaquot" not found.
Hint: try: dune external-lib-deps --missing -j 4 --profile release @install
*** Error code 1

Stop.
make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/devel/ocaml-ppx_fields_conv
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/devel/ocaml-ppx_fields_conv