/usr/lib/nodejs/readable-stream/ is in node-readable-stream 2.3.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/nodejs/readable-stream/duplex-browser.js
/usr/lib/nodejs/readable-stream/duplex.js
/usr/lib/nodejs/readable-stream/lib/
/usr/lib/nodejs/readable-stream/lib/_stream_duplex.js
/usr/lib/nodejs/readable-stream/lib/_stream_passthrough.js
/usr/lib/nodejs/readable-stream/lib/_stream_readable.js
/usr/lib/nodejs/readable-stream/lib/_stream_transform.js
/usr/lib/nodejs/readable-stream/lib/_stream_writable.js
/usr/lib/nodejs/readable-stream/lib/internal/
/usr/lib/nodejs/readable-stream/lib/internal/streams/
/usr/lib/nodejs/readable-stream/lib/internal/streams/BufferList.js
/usr/lib/nodejs/readable-stream/lib/internal/streams/destroy.js
/usr/lib/nodejs/readable-stream/lib/internal/streams/stream-browser.js
/usr/lib/nodejs/readable-stream/lib/internal/streams/stream.js
/usr/lib/nodejs/readable-stream/package.json
/usr/lib/nodejs/readable-stream/passthrough.js
/usr/lib/nodejs/readable-stream/readable-browser.js
/usr/lib/nodejs/readable-stream/readable.js
/usr/lib/nodejs/readable-stream/transform.js
/usr/lib/nodejs/readable-stream/writable-browser.js
/usr/lib/nodejs/readable-stream/writable.js