diff --git a/pkgs/development/compilers/rust/beta.nix b/pkgs/development/compilers/rust/beta.nix
index 2414480dda8..cb1b0bd8b40 100644
--- a/pkgs/development/compilers/rust/beta.nix
+++ b/pkgs/development/compilers/rust/beta.nix
@@ -18,10 +18,6 @@ rec {
   };
 
   cargo = callPackage ./cargo.nix rec {
-    # TODO: We're temporarily tracking master here as Darwin needs the
-    # `http.cainfo` option from .cargo/config which isn't released
-    # yet.
-
     version = "beta-2016-07-25";
     srcRev = "f09ef68cc47956ccc5f99212bdcdd15298c400a0";
     srcSha = "1r6q9jd0fl6mzhwkvrrcv358q2784hg51dfpy28xgh4n61m7c155";
diff --git a/pkgs/development/compilers/rust/default.nix b/pkgs/development/compilers/rust/default.nix
index 9bbcb360e61..b7e992c916d 100644
--- a/pkgs/development/compilers/rust/default.nix
+++ b/pkgs/development/compilers/rust/default.nix
@@ -25,10 +25,6 @@ rec {
   };
 
   cargo = callPackage ./cargo.nix rec {
-    # TODO: We're temporarily tracking master here as Darwin needs the
-    # `http.cainfo` option from .cargo/config which isn't released
-    # yet.
-
     version = "0.12.0";
     srcRev = "6b98d1f8abf5b33c1ca2771d3f5f3bafc3407b93";
     srcSha = "0pq6l3yzmh2il6320f6501hvp9iikdxzl34i5b52v93ncpim36bk";