--- a/MozillaFirefox/MozillaFirefox.spec	Wed Apr 26 14:34:14 2017 +0200
+++ b/MozillaFirefox/MozillaFirefox.spec	Thu Apr 27 09:17:16 2017 +0200
@@ -92,7 +92,7 @@
 BuildRequires:  pkgconfig(gtk+-unix-print-3.0)
 %if 0%{?firefox_use_rust}
 BuildRequires:  cargo
-BuildRequires:  rust >= 1.10
+BuildRequires:  rust >= 1.13
 BuildRequires:  rust-std
 %endif
 # libavcodec is required for H.264 support but the