The following actions will be performed:
  - install mrt-format 0.3.0

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[mrt-format: http] Command started
[mrt-format: http] Command started
[mrt-format.0.3.0] https://github.com/mor1/mrt-format/releases/download/0.3.0/mrt-format-0.3.0.tbz downloaded

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[mrt-format: jbuilder build] Command started
+ jbuilder "build" "-p" "mrt-format" "-j" "4" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/mrt-format.0.3.0)
- File "lib/jbuild", line 7, characters 20-31:
- Error: Library "ppx_cstruct" not found.
- Hint: try: dune external-lib-deps --missing --profile release -p mrt-format @install
- File "lib/jbuild", line 7, characters 20-31:
- Error: Library "ppx_cstruct" not found.
- Hint: try: dune external-lib-deps --missing --profile release -p mrt-format @install
[ERROR] The compilation of mrt-format failed at "jbuilder build -p mrt-format
        -j 4".

#=== ERROR while installing mrt-format.0.3.0 ==================================#
# opam-version         1.2.2+dd (3852ba0a7708d4dc37f64dd4cd00f873bf317ac0)
# os                   linux
# command              jbuilder build -p mrt-format -j 4
# path                 /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/mrt-format.0.3.0
# 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/mrt-format.0.3.0/mrt-format-682.env
# stdout-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/mrt-format.0.3.0/mrt-format-682.out
# stderr-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/mrt-format.0.3.0/mrt-format-682.out
### stdout ###
# File "lib/jbuild", line 7, characters 20-31:
# Error: Library "ppx_cstruct" not found.
# Hint: try: dune external-lib-deps --missing --profile release -p mrt-format @install
### stderr ###
# File "lib/jbuild", line 7, characters 20-31:
# Error: Library "ppx_cstruct" not found.
# Hint: try: dune external-lib-deps --missing --profile release -p mrt-format @install



=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The following actions failed
  - install mrt-format 0.3.0
No changes have been performed
'opam install mrt-format.0.3.0' failed.