these 2 derivations will be built:
  /nix/store/drl86lc6djn634gmgvw6kb89ykilv823-envoy-nixos.json.drv
  /nix/store/yyh7hjx3ddhgaf2r9v5bd9j0zpr4gdf9-nix-grpc-farm-helm-check.drv
error: Cannot build '/nix/store/yyh7hjx3ddhgaf2r9v5bd9j0zpr4gdf9-nix-grpc-farm-helm-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bnkyw8pcxhzv8p0x8g12ba5s2w0yxjka-nix-grpc-farm-helm-check
       Last 25 log lines:
       > +            ]
       >            }
       >          ]
       >        },
       > @@ -134,8 +133,7 @@
       >                    }
       >                  }
       >                }
       > -            ],
       > -            "priority": 0
       > +            ]
       >            }
       >          ]
       >        },
       > @@ -210,8 +208,7 @@
       >                    }
       >                  }
       >                }
       > -            ],
       > -            "priority": 0
       > +            ]
       >            }
       >          ]
       >        },
       > envoy config from the chart drifted from nixos/lb.nix
       For full logs, run:
         nix log /nix/store/yyh7hjx3ddhgaf2r9v5bd9j0zpr4gdf9-nix-grpc-farm-helm-check.drv