If you're building Firefox from source, please check that your rust toolchain is up-to-date. You can either:
rustup update or ./mach bootstrap We've just queued a patch to bump the minimum required rust version from 1.15.1 to 1.17.0, the version released 8 weeks ago. This is necessary for merging recent changes to the style system from servo as part of the Quantum project. The commands above should update you to at least 1.18.0, which is even better. See https://bugzilla.mozilla.org/show_bug.cgi?id=1374807 and adjacent bugs for details. _______________________________________________ dev-platform mailing list [email protected] https://lists.mozilla.org/listinfo/dev-platform

