Examine this TimeoutInterceptor snippet. What is the main issue that would cause it to fail?

Examine this TimeoutInterceptor snippet. What is the main issue that would cause it to fail?

import { Injectable, NestInterceptor } from '@nestjs/common';
import { timeout } from 'rxjs/operators';

@Injectable()
export class TimeoutInterceptor implements NestInterceptor {
  intercept(context, next) {
    return next.handle().pipe(
      timeout(-5000)
    );
  }
}