Linux Web Engine builds are running in ~50 minutes, which is substantially over the goal of 30 minutes. One reason for this is that the wasm_release build is not goma-enabled. Even so, the ninja command to build the wasm_release build is still passing a -j of 200, which is way beyond the 8 cores that the Linux VMs appear to have. We need to do two things:

1. Use autoninja rather than ninja -j200 to build wasm_release
2. Run the Linux Web Engine build on a machine with as many cores as possible.

cc @keyonghan @eyebrowsoffire

@eyebrowsoffire Do we (or do we plan to in the next O(weeks)) do a wasm_release build on any configurations aside from Linux Web Engine?