activate CI test for eduOS-rs

3 jobs for stage7 in 2 minutes and 20 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Prepare
passed #560699
linux shell
docker

00:01:21

 
  Build
failed #560700
docker
build

00:00:59

 
  Test
skipped #560701
docker
test
 
Name Stage Failure
failed
build Build
error: aborting due to previous error

For more information about this error, try `rustc --explain E0425`.
error: could not compile `eduos-rs`.
warning: build failed, waiting for other jobs to finish...
error: build failed
make: *** [cargo] Error 101
Makefile:37: recipe for target 'cargo' failed
ERROR: Job failed: exit code 1