result of dapper cargo test ,unknown instruction: INCLUDE+

[leiqi96]

I have use command DOCKER_BUILDKIT=1 dapper cargo build to build lockc.
then I want to test, but it failed.

# dapper cargo test
Sending build context to Docker daemon 9.758MB
Error response from daemon: dockerfile parse error line 2: unknown instruction: INCLUDE+
FATA[0000] exit status 1

[vadorovsky]

Hi @leiqi96,

Can you try DOCKER_BUILDKIT=1 dapper cargo test?

The INCLUDE+ instruction comes from Dockerfile+ extension and using such extensions works only with Docker Buildkit enabled.

We probably need to somehow document to always enable DOCKER_BUILDKIT, for people who are not using the newest Docker versions.

[leiqi96]

thanks, it works