rust: 1.15.0 -> 1.17.0

Also updates beta, nightly, nightlyBin, and bootstrap compilers.
Also updates the registry.
Also consolidates logic between bootstrap and nightlyBin compilers.
Also contains some miscellaneous cleanups.
Also patches firefox to build with the newer cargo

pkgs/development/compilers/rust/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, callPackage, recurseIntoAttrs, makeRustPlatform, llvm
+{ stdenv, callPackage, recurseIntoAttrs, makeRustPlatform, llvm, fetchurl
 , targets ? []
 , targetToolchains ? []
 , targetPatches ? []
@@ -6,32 +6,30 @@
 
 let
   rustPlatform = recurseIntoAttrs (makeRustPlatform (callPackage ./bootstrap.nix {}));
+  version = "1.17.0";
 in
 rec {
   rustc = callPackage ./rustc.nix {
-    shortVersion = "1.15.1";
-    isRelease = true;
-    forceBundledLLVM = false;
+    inherit llvm targets targetPatches targetToolchains rustPlatform version;
+
     configureFlags = [ "--release-channel=stable" ];
-    srcRev = "021bd294c039bd54aa5c4aa85bcdffb0d24bc892";
-    srcSha = "1dp7cjxj8nv960jxkq3p18agh9bpfb69ac14x284jmhwyksim3y7";
+
+    src = fetchurl {
+      url = "https://static.rust-lang.org/dist/rustc-${version}-src.tar.gz";
+      sha256 = "4baba3895b75f2492df6ce5a28a916307ecd1c088dc1fd02dbfa8a8e86174f87";
+    };
 
     patches = [
       ./patches/darwin-disable-fragile-tcp-tests.patch
     ] ++ stdenv.lib.optional stdenv.needsPax ./patches/grsec.patch;
 
-    inherit llvm;
-    inherit targets;
-    inherit targetPatches;
-    inherit targetToolchains;
-    inherit rustPlatform;
   };
 
   cargo = callPackage ./cargo.nix rec {
-    version = "0.16.0";
-    srcRev = "6e0c18cccc8b0c06fba8a8d76486f81a792fb420";
-    srcSha = "117ivvs9wz848mwf8bw797n10qpn77agd353z8b0hxgbxhpribya";
-    depsSha256 = "11s2xpgfhl4mb4wa2nk4mzsypr7m9daxxc7l0vraiz5cr77gk7qq";
+    version = "0.18.0";
+    srcRev = "fe7b0cdcf5ca7aab81630706ce40b70f6aa2e666";
+    srcSha = "164iywv1l3v87b0pznf5kkzxigd6w19myv9d7ka4c65zgrk9n9px";
+    depsSha256 = "1mrgd8ib48vxxbhkvsqqq4p19sc6b74x3cd8p6lhhlm6plrajrvm";
 
     inherit rustc; # the rustc that will be wrapped by cargo
     inherit rustPlatform; # used to build cargo