Move thinsg around... hopefully it reproduces?

packages/@jsii/runtime/lib/program.ts

@@ -1,3 +1,5 @@
+import * as process from 'process';
+
 import * as packageInfo from '../package.json';
 import { KernelHost } from './host';
 import { InputOutput } from './in-out';
@@ -8,15 +10,15 @@ const version = packageInfo.version;
 const noStack = !!process.env.JSII_NOSTACK;
 const debug = !!process.env.JSII_DEBUG;
 
-if (debug) {
-  console.error('@jsii/runtime: debug logging is enabled');
-}
-
 const inout = new InputOutput();
 const host = new KernelHost(inout, { debug, noStack });
 
 // say hello
 inout.write({ hello: `${name}@${version}` });
 inout.debug = debug; // we don't want "hello" emitted
 
+console.error(
+  `@jsii/runtime: debug logging is enabled, stdin is a ${process.stdin.constructor.name}`,
+);
+
 host.run();