bootstrap tools test: fixup after d71833ee36

pkgs/applications/misc/hello/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchipfs }:
+{ stdenv, fetchipfs, fetchurl }:
 
 stdenv.mkDerivation rec {
   name = "hello-2.10";
@@ -22,4 +22,9 @@ stdenv.mkDerivation rec {
     maintainers = [ stdenv.lib.maintainers.eelco ];
     platforms = stdenv.lib.platforms.all;
   };
+
+  passthru.srcTarball = fetchurl {
+    inherit (src) url;
+    sha256 = "0ssi1wpaf7plaswqqjwigppsg5fyh99vdlb9kzl7c9lng89ndq1i";
+  };
 }

pkgs/stdenv/linux/make-bootstrap-tools.nix

@@ -216,7 +216,7 @@ rec {
       $CXX -v -o $out/bin/bar bar.cc
       $out/bin/bar
 
-      tar xvf ${hello.src}
+      tar xvf ${hello.srcTarball}
       cd hello-*
       ./configure --prefix=$out
       make