The following actions will be performed:
  - install ppx_regexp 0.4.0

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[ppx_regexp: http] Command started
[ppx_regexp: http] Command started
[ppx_regexp.0.4.0] https://github.com/paurkedal/ppx_regexp/releases/download/v0.4.0/ppx_regexp-0.4.0.tbz downloaded

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[ppx_regexp: dune build] Command started
+ dune "build" "-p" "ppx_regexp" "-j" "4" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/ppx_regexp.0.4.0)
- File unavailable: /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/lib/ppx_tools_versioned/ppx_metaquot_404.cmx
- File unavailable: /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/lib/ppx_tools_versioned/ppx_metaquot_404.cmx
[ERROR] The compilation of ppx_regexp failed at "dune build -p ppx_regexp -j
        4".

#=== ERROR while installing ppx_regexp.0.4.0 ==================================#
# opam-version         1.2.2+dd (3852ba0a7708d4dc37f64dd4cd00f873bf317ac0)
# os                   linux
# command              dune build -p ppx_regexp -j 4
# path                 /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/ppx_regexp.0.4.0
# compiler             4.07.0+pr2051
# exit-code            1
# env-file             /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/ppx_regexp.0.4.0/ppx_regexp-19133.env
# stdout-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/ppx_regexp.0.4.0/ppx_regexp-19133.out
# stderr-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/ppx_regexp.0.4.0/ppx_regexp-19133.out
### stdout ###
# File unavailable: /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/lib/ppx_tools_versioned/ppx_metaquot_404.cmx
### stderr ###
# File unavailable: /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/lib/ppx_tools_versioned/ppx_metaquot_404.cmx



=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The following actions failed
  - install ppx_regexp 0.4.0
No changes have been performed
'opam install ppx_regexp.0.4.0' failed.