[rush] Rush build will incorrectly save the information output during the project build process to the error.log file

[hx-dl]

Summary

Repro steps

Expected result: The result of executing rush build is consistent with the result of executing rushx build under projectFolder

Actual result: When executing rushx build under projectFolder, only the build.log file will exist and no error.log file will be generated. However, when executing with rush build --to projectName, both error.log and build.log files will be generated

Details

Standard questions

Please answer these questions to help us investigate your issue more quickly:

Question	Answer
@microsoft/rush globally installed version?	5.112.2
rushVersion from rush.json?	5.112.2
useWorkspaces from rush.json?	true
Operating system?	Mac
Would you consider contributing a PR?	No
Node.js version (node -v)?	v16.20.2

[iclanton]

It looks like your tool is writing to STDERR, which is treated as error output in Rush bulk commands. You can override this behavior in command-line.json by setting the allowWarningsInSuccessfulBuild option to true for your command, but keep in mind that this will ignore everything that writes to STDERR and will only fail builds if the process exits with a nonzero exit code.