Revert "Revert "Merge pull request #9543 from NixOS/staging.post-15.06""

This reverts commit 741bf840da.

This reverts the fallout from reverting the major changes.

pkgs/tools/misc/heatseeker/default.nix

@@ -0,0 +1,28 @@
+{ stdenv, fetchFromGitHub, rustPlatform }:
+
+with rustPlatform;
+
+buildRustPackage rec {
+  name = "heatseeker-${version}";
+  version = "1.3.0";
+
+  depsSha256 = "03jap7myf85xgx9270sws8x57nl04a1wx8szrk9qx24s9vnnjcnh";
+
+  src = fetchFromGitHub {
+    owner = "rschmitt";
+    repo = "heatseeker";
+    rev = "v${version}";
+    sha256 = "1xdvwgmh9lwv82hv1qg82bjv2iplnvva6lzbg7dyhbszhv7rhkbl";
+  };
+  
+  # some tests require a tty, this variable turns them off for Travis CI,
+  # which we can also make use of
+  TRAVIS= "true";
+
+  meta = with stdenv.lib; {
+    description = "A general-purpose fuzzy selector";
+    homepage = https://github.com/rschmitt/heatseeker;
+    license = stdenv.lib.licenses.mit;
+    maintainers = [ maintainers.michaelpj ];
+  };
+}