rust: update cargo builder to fetch registry dynamically

The biggest benefit is that we no longer have to update the registry
package. This means that just about any cargo package can be built by
nix. No longer does `cargo update` need to be feared because it will
update to packages newer then what is available in nixpkgs.

Instead of fetching the cargo registry this bundles all the source code
into a "vendor/" folder.

This also uses the new --frozen and --locked flags which is nice.

Currently cargo-vendor only provides binaries for Linux and
macOS 64-bit. This can be solved by building it for the other
architectures and uploading it somewhere (like the NixOS cache).

This also has the downside that it requires a change to everyone's deps
hash. And if the old one is used because it was cached it will fail to
build as it will attempt to use the old version. For this reason the
attribute has been renamed to `cargoSha256`.

Authors:
* Kevin Cox <kevincox@kevincox.ca>
* Jörg Thalheim <Mic92@users.noreply.github.com>
* zimbatm <zimbatm@zimbatm.com>

1 files changed, 0 insertions, 46 deletions

diff --git a/pkgs/top-level/rust-packages.nix b/pkgs/top-level/rust-packages.nix
deleted file mode 100644
index 92230993d58f..000000000000
--- a/pkgs/top-level/rust-packages.nix
+++ /dev/null
@@ -1,46 +0,0 @@
-# This file defines the source of Rust / cargo's crates registry
-#
-# buildRustPackage will automatically download dependencies from the registry
-# version that we define here. If you're having problems downloading / finding
-# a Rust library, try updating this to a newer commit.
-
-{ stdenv, fetchFromGitHub, git }:
-
-stdenv.mkDerivation {
-  name = "rustRegistry-2017-10-08";
-
-  src = fetchFromGitHub {
-    owner = "rust-lang";
-    repo = "crates.io-index";
-    rev = "78ab44cf22c2ce5d40e562ffc7df7ab10ac12b86";
-    sha256 = "0fa3l3px6b89ap63h40bhn2x50zf5j65jrgbb7j103j0cdayk2l0";
-  };
-  phases = [ "unpackPhase" "installPhase" ];
-  installPhase = ''
-    # For some reason, cargo doesn't like fetchgit's git repositories, not even
-    # if we set leaveDotGit to true, set the fetchgit branch to 'master' and clone
-    # the repository (tested with registry rev
-    # 965b634156cc5c6f10c7a458392bfd6f27436e7e), failing with the message:
-    #
-    # "Target OID for the reference doesn't exist on the repository"
-    #
-    # So we'll just have to create a new git repository from scratch with the
-    # contents downloaded with fetchgit...
-
-    mkdir -p $out
-
-    cp -r ./* $out/
-
-    cd $out
-
-    git="${git}/bin/git"
-
-    $git init
-    $git config --local user.email "example@example.com"
-    $git config --local user.name "example"
-    $git add .
-    $git commit --quiet -m 'Rust registry commit'
-
-    touch $out/touch . "$out/.cargo-index-lock"
-  '';
-}