[MacPorts] #56614: rust @ 1.26.1 fails to build on OS X 10.10.5

[MacPorts]

#56614: rust @ 1.26.1 fails to build on OS X 10.10.5
------------------------+----------------------
  Reporter:  kwodzicki  |      Owner:  g5pw
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  rust       |
------------------------+----------------------

Comment (by l2dy):

 [https://build.macports.org/builders/ports-10.10_x86_64-watcher/builds/15466
 1.26.1] passed on our Buildbot, but
 [https://build.macports.org/builders/ports-10.10_x86_64-watcher/builds/15592
 1.26.2] and
 [https://build.macports.org/builders/ports-10.10_x86_64-watcher/builds/15998
 1.27.0] failed.

 You reported build failure of 1.26.1, and no other commit touched rust's
 port directory between 1.26.1 and 1.26.2 except
 [changeset:"b05a94e3fbe970db952f3986de5ef9ef94131304/macports-ports" the
 update itself]. So I suspect it's a PortGroup or dependency update in
 between that caused this.

-- 
Ticket URL: <https://trac.macports.org/ticket/56614#comment:4>
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