Build Failure on ports-10.6_i386_legacy: ocaml-async-extra, ocaml-camlp4

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_i386_legacy
Full logs:    https://build.macports.org/builders/ports-10.6_i386_legacy-watcher/builds/12499
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    ocaml-async-extra
Subport list:
	- ocaml-async-extra
Variants:     None
Revision:     56f9f4da689c2fbeb5bbf52bdbfa52847513fe34
Build time:   0:01:36
Author:       Ken <21211439+kencu at users.noreply.github.com>

Log from failed builds:
	Building 'ocaml-async-extra' ... [ERROR] (failed to install dependency 'ocaml-camlp4')
	> maintainers: perry at piermont.com.

Broken ports:
	- ocaml-async-extra
	- ocaml-camlp4

Responsible maintainers:
	- perry at piermont.com

Links to individual build jobs:
- ports-10.6_i386_legacy-builder #36395
  https://build.macports.org/builders/ports-10.6_i386_legacy-builder/builds/36395

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MacPorts Buildbot
https://build.macports.org/