singularity debug job

pkgs/default.nix

@@ -491,8 +491,9 @@ let
       src = ../dhrun ;
       installPhase = ''
         mkdir -p $out
-        singularity --version &> $out/version
-        singularity --help &> $out/version
+        echo $PATH
+        singularity --version
+        singularity --help
         '';
       unpackPhase = "true";
     };