these 7 derivations will be built:
  /nix/store/2flqiki337vdwy315l2avh028fw91pg5-source.drv
  /nix/store/940scbyjnvc57312i3ksq6przf3pvi4i-ocaml4.14.0-psmt2-frontend-0.4.0.drv
  /nix/store/814fzl1mfs2y4rfixqcpf8zr98z6z8hi-source.drv
  /nix/store/hh8kl84j57srnah8d5vclmjwwrna4p6g-ocaml4.14.0-ocplib-simplex-0.4.drv
  /nix/store/hmwp5qd182wg8rspnc554zdbcb30pi40-ocaml4.14.0-alt-ergo-lib-2.4.2.drv
  /nix/store/7lv1wf7jb2b7b2cw3bgmkqp9ll3z35yl-ocaml4.14.0-alt-ergo-parsers-2.4.2.drv
  /nix/store/3ngkq7nlnf8xni8ykmwl9dfkjazh0pni-ocaml4.14.0-alt-ergo-2.4.2.drv
these 12 paths will be fetched (6.2 MiB download, 26.5 MiB unpacked):
  /nix/store/y15z7z4hkizjlsnv8m4q3vx1gsj1yr6z-cmdliner-1.1.1
  /nix/store/6gfqd4ia2sgw7zigdvv1z5js59ycrr5s-dune-2.9.3
  /nix/store/h5fnvply7c7h3sm3qk1rb0pva4wrhpqp-ocaml4.14.0-camlzip-1.11
  /nix/store/vri865ba0sf2m12g294zan3gwj147n98-ocaml4.14.0-csexp-1.5.1
  /nix/store/fyn2d245yn7h6j5qmy18n9xb31gqahzm-ocaml4.14.0-dune-configurator-2.9.3
  /nix/store/wfmmvsb69pa17f2v3v90m21dnckxr7ak-ocaml4.14.0-menhir-20220210
  /nix/store/186vrlw3byvwnrbb2xkw005v41a1b54w-ocaml4.14.0-num-1.1
  /nix/store/y3xrxsa8y9fh0kd3xm6czfmdcpbs5z5c-ocaml4.14.0-result-1.5
  /nix/store/541a4vslysmh9flaygcql5v9ns63a8gx-ocaml4.14.0-seq-0.1
  /nix/store/9z1rxbx1b2x6d0zr7vprgkpwxirsjwv4-ocaml4.14.0-stdlib-shims-0.3.0
  /nix/store/5y120wa1jy1j4qaqh20172246sbicd1b-ocaml4.14.0-zarith-1.12
  /nix/store/mfly5p391cknd9iwj6f8i57q74qw2zrl-source