Indeed, it looks like the newer versions of these packages are missing from older Ubuntu releases, making it impossible to rebuild Firefox from scratch.
** Also affects: firefox (Ubuntu) Importance: Undecided Status: New ** Changed in: firefox (Ubuntu) Status: New => Confirmed ** Summary changed: - Backport rustc 1.19 and cargo 0.20 to 14.04/16.04 and 17.04 + Backport rustc 1.19 and cargo 0.20 to 14.04/16.04/17.04/17.10 ** Tags added: unmetdeps ** Tags added: artful trusty xenial zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1701556 Title: Backport rustc 1.19 and cargo 0.20 to 14.04/16.04/17.04/17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cargo/+bug/1701556/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs