title: Records requires ASM8
body: <p>I want to play around with the newest Java 15 with preview features. I'm using Spring Boot 2.4.0-M2 and Gradle 6.7-rc2, where both of them support Java 15 features.<br />
  I want to build a docker image from my project using jib. Here's my jib configuration:</p>
  <pre><code>jib {
      from {
          image = 'openjdk:15-jdk'
      }   
      to {
          image = '&lt;username&gt;/&lt;project&gt;'
      }
      container {
          jvmFlags = ['--enable-preview']
      }
  }
  </code></pre>
  <p>Unfortunately, when I'm running <code>./gradlew jib</code> I'm getting the following error:</p>
  <pre><code>Execution failed for task ':jib'.
  &gt; Records requires ASM8
  </code></pre>
  <p>And here's the output while running with <code>--info</code> flag:</p>
  <pre><code>&gt; Task :jib FAILED
  Caching disabled for task ':jib' because:
    Build cache is disabled
  Task ':jib' is not up-to-date because:
    Task has not declared any outputs despite executing actions.
  Searching for main class... Add a 'mainClass' configuration to 'jib' to improve build speed.
  Could not find a valid main class from 'jar' task; looking into all class files to infer main class.
  :jib (Thread[Execution worker for ':',5,main]) completed. Took 0.003 secs.
  </code></pre>
  <p>Have anyone had a similar problem?</p>