According to the build notes:
Editor: Optional “strict mode” when building projects and AssetBundles, which will fail the build if any errors (even non-fatal ones) are reported during the build process.
Can anyone tell how to disable this “strict mode” when building from command line?
It seems the documentation is not yet updated to reflect this.
As the release note says, it is optional - it should not be taking effect from the command line.
Note that even with strict mode turned off, fatal errors can still prevent the build from producing output.
Actually as I found out the build is created, but unity dumps misleading error messages saying build cancelled, and returns an error code causing CI to report a build failure.
Sounds like a bug, could we get a bug report please?