Build Failure on ports-10.6_x86_64: lilypond-devel

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_x86_64
Full logs:    https://build.macports.org/builders/ports-10.6_x86_64-watcher/builds/2705
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    pspp-devel lilypond-devel libmicrohttpd
Subport list:
	- libmicrohttpd
	- lilypond-devel
	- pspp-devel
Variants:     None
Revision:     1850f20cc3b51c46d19fc9a8df3b069216b2b791
Build time:   0:24:13
Author:       Jeremy Lavergne <snc at macports.org>

Log from failed builds:
	Building 'lilypond-devel' ... [ERROR] (failed to fetch dependency 'gcc9')
	> maintainers: snc at macports.org.

Broken ports:
	- lilypond-devel

Responsible maintainers:
	- snc at macports.org

Links to individual build jobs:
- ports-10.6_x86_64-builder #12788
  https://build.macports.org/builders/ports-10.6_x86_64-builder/builds/12788
- ports-10.6_x86_64-builder #12789
  https://build.macports.org/builders/ports-10.6_x86_64-builder/builds/12789
- ports-10.6_x86_64-builder #12790
  https://build.macports.org/builders/ports-10.6_x86_64-builder/builds/12790

-- 
Best regards,
MacPorts Buildbot
https://build.macports.org/