diff --git a/pkgs/development/tools/build-managers/cargo/default.nix b/pkgs/development/tools/build-managers/cargo/default.nix
index 2d7cdc365040..54909ce3b704 100644
--- a/pkgs/development/tools/build-managers/cargo/default.nix
+++ b/pkgs/development/tools/build-managers/cargo/default.nix
@@ -7,7 +7,7 @@ with rustPlatform;
 
 with ((import ./common.nix) {
   inherit stdenv rustc;
-  version = "0.9.0";
+  version = "0.10.0";
 });
 
 buildRustPackage rec {
@@ -17,10 +17,10 @@ buildRustPackage rec {
   src = fetchgit {
     url = "git://github.com/rust-lang/cargo";
     rev = "refs/tags/${version}";
-    sha256 = "0d3n2jdhaz06yhilvmw3m2avxv501da1hdhljc9mwkz3l5bkv2jv";
+    sha256 = "06scvx5qh60mgvlpvri9ig4np2fsnicsfd452fi9w983dkxnz4l2";
   };
 
-  depsSha256 = "1x2m7ww2z8nl5ic2nds85p7ma8x0zp654jg7ay905ia95daiabzg";
+  depsSha256 = "0js4697n7v93wnqnpvamhp446w58llj66za5hkd6wannmc0gsy3b";
 
   buildInputs = [ file curl pkgconfig python openssl cmake zlib makeWrapper ]
     ++ lib.optional stdenv.isDarwin libiconv;
diff --git a/pkgs/top-level/rust-packages.nix b/pkgs/top-level/rust-packages.nix
index 7eb902ef28c6..31eb3007daae 100644
--- a/pkgs/top-level/rust-packages.nix
+++ b/pkgs/top-level/rust-packages.nix
@@ -7,15 +7,15 @@
 { runCommand, fetchFromGitHub, git }:
 
 let
-  version = "2016-05-12";
-  rev = "5b7ac517f63cfc380f018445920aac322ae19b6f";
+  version = "2016-05-28";
+  rev = "eb354be1bc4c368e4ed885bd126f625f371b4bfa";
 
   src = fetchFromGitHub {
       inherit rev;
 
       owner = "rust-lang";
       repo = "crates.io-index";
-      sha256 = "0g50hjbvfjgi7j26b9n018vgh7sxvzq8lwzchk0zavirsxhnzxni";
+      sha256 = "1scbfraj2cgpi5q1bkhhj18jv58hkyl9pms8qnx3fvxs6yq68ba9";
   };
 
 in
@@ -44,4 +44,6 @@ runCommand "rustRegistry-${version}-${builtins.substring 0 7 rev}" { inherit src
   $git config --local user.name "example"
   $git add .
   $git commit -m 'Rust registry commit'
+
+  touch $out/touch . "$out/.cargo-index-lock"
 ''