goPackages: Fix tools

pkgs/development/go-modules/generic/default.nix

@@ -137,7 +137,7 @@ go.stdenv.mkDerivation (
     done < <(find . -type f)
     popd
 
-    mkdir $bin
+    mkdir -p $bin
     dir="$NIX_BUILD_TOP/go/bin"
     [ -e "$dir" ] && cp -r $dir $bin
 

pkgs/top-level/go-packages.nix

@@ -133,7 +133,7 @@ let
       mkdir -p $bin/bin
       eval $(go env | grep GOTOOLDIR)
       find $GOTOOLDIR -type f | while read x; do
-        ln -sv "$x" "$binbin"
+        ln -sv "$x" "$bin/bin"
       done
       export GOTOOLDIR=$bin/bin
     '';