在过去，我可以简单地做这样的事情：
Dockerfile：

FROM ubuntu
RUN echo "test"

字符串
它会输出test到我的shell。我使用它作为调试我的构建的一种方式。
在最新的稳定版docker for windows中，构建输出看起来完全不同，并且没有显示任何命令的任何stdout。
如何查看构建过程中任何命令的输出？
以上Dockerfile示例的当前输出如下所示：

[+] Building 4.7s (6/6) FINISHED
 => [internal] load build definition from Dockerfile                                                                       0.0s 
 => => transferring dockerfile: 65B                                                                                        0.0s 
 => [internal] load .dockerignore                                                                                          0.0s 
 => => transferring context: 2B                                                                                            0.0s 
 => [internal] load metadata for docker.io/library/ubuntu:latest                                                           2.0s 
 => [1/2] FROM docker.io/library/ubuntu@sha256:c95a8e48bf88e9849f3e0f723d9f49fa12c5a00cfc6e60d2bc99d87555295e4c            2.3s 
 => => resolve docker.io/library/ubuntu@sha256:c95a8e48bf88e9849f3e0f723d9f49fa12c5a00cfc6e60d2bc99d87555295e4c            0.0s 
 => => sha256:f643c72bc25212974c16f3348b3a898b1ec1eb13ec1539e10a103e6e217eb2f1 3.32kB / 3.32kB                             0.0s 
 => => sha256:da7391352a9bb76b292a568c066aa4c3cbae8d494e6a3c68e3c596d34f7c75f8 28.56MB / 28.56MB                           1.2s 
 => => sha256:14428a6d4bcdba49a64127900a0691fb00a3f329aced25eb77e3b65646638f8d 847B / 847B                                 0.5s 
 => => sha256:c95a8e48bf88e9849f3e0f723d9f49fa12c5a00cfc6e60d2bc99d87555295e4c 1.20kB / 1.20kB                             0.0s 
 => => sha256:4e4bc990609ed865e07afc8427c30ffdddca5153fd4e82c20d8f0783a291e241 943B / 943B                                 0.0s 
 => => extracting sha256:da7391352a9bb76b292a568c066aa4c3cbae8d494e6a3c68e3c596d34f7c75f8                                  0.8s 
 => => extracting sha256:14428a6d4bcdba49a64127900a0691fb00a3f329aced25eb77e3b65646638f8d                                  0.0s 
 => => extracting sha256:2c2d948710f21ad82dce71743b1654b45acb5c059cf5c19da491582cef6f2601                                  0.0s 
 => [2/2] RUN echo "test"                                                                                                  0.3s 
 => exporting to image                                                                                                     0.0s 
 => => exporting layers                                                                                                    0.0s 
 => => writing image sha256:8c61a015c1cc5af925e0db03bb56a627ce3624818c456fca11379c92c2e9d864                               0.0s

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