SBT,编译编译器桥

我想用SBT建立一个Docker的形象。

以下是我的资料:

FROM kondaurov/jdk-alpine:jdk8slim

ENV SBT_VERSION=1.2.1

RUN \
 echo "$SBT_VERSION" && \
 curl -fsL https://github.com/sbt/sbt/releases/download/v${SBT_VERSION}/sbt-${SBT_VERSION}.tgz | tar xfz - -C /usr/local && \
 ln -s /usr/local/sbt/bin/* /usr/local/bin/ && \
 sbt sbtVersion

ENTRYPOINT sbt

当我将此图像用于我的scala项目时,我会得到:

[warn] Run 'evicted' to see detailed eviction warnings

[info] Compiling 4 Scala sources to /sbt_project/project/target/scala-2.12/sbt-1.0/classes ...

[info] Non-compiled module 'compiler-bridge_2.12' for Scala 2.12.6. Compiling...

[info]   Compilation completed in 53.746s.

如您所见,sbt总是为scala编译编译器桥,这需要一些时间。是否可以在我的图像中编译桥接器?我猜 SBT SBT版本 还不够