Dev tools are still using the non-portable lock directories. That's good, because we don't want to incur the cost of solving it on platforms we can't run them on, however it does mean the digest of the compiler becomes different so after #14357 dev tool installs don't get to reuse the compiler from the main build.
This can be solved by making portable lock directories the default, which requires #13645, #13647, and the spirit of #13637.
This should be considered in #12914.
Dev tools are still using the non-portable lock directories. That's good, because we don't want to incur the cost of solving it on platforms we can't run them on, however it does mean the digest of the compiler becomes different so after #14357 dev tool installs don't get to reuse the compiler from the main build.
This can be solved by making portable lock directories the default, which requires #13645, #13647, and the spirit of #13637.
This should be considered in #12914.