set up builder pipe

src/libstore/build/local-derivation-goal.cc

@@ -726,7 +726,7 @@ void LocalDerivationGoal::startBuilder()
     Path logFile = openLogFile();
 
     /* Create a pipe to get the output of the builder. */
-    //builderOut.create();
+    builderOut.create();
 
     builderOut.readSide = posix_openpt(O_RDWR | O_NOCTTY);
     if (!builderOut.readSide)

src/nix/develop.cc

@@ -443,17 +443,13 @@ struct CmdDevelop : Common, MixEnvironment
         try {
             auto state = getEvalState();
 
-            auto nixpkgsLockFlags = lockFlags;
-            nixpkgsLockFlags.inputOverrides = {};
-            nixpkgsLockFlags.inputUpdates = {};
-
             auto bashInstallable = std::make_shared<InstallableFlake>(
                 this,
                 state,
                 installable->nixpkgsFlakeRef(),
                 Strings{"bashInteractive"},
                 Strings{"legacyPackages." + settings.thisSystem.get() + "."},
-                nixpkgsLockFlags);
+                lockFlags);
 
             shell = state->store->printStorePath(
                 toStorePath(state->store, Realise::Outputs, OperateOn::Output, bashInstallable)) + "/bin/bash";