Ubuntu builders by default are provisioned with 60GB of disk space, and that sizing manages to build all packages, including toolchains/web-browsers/etc.

It is not large enough to build mongodb 3.6.3. Building locally, I can see that linked _test binaries are huge in size. e.g. starting from 31MB all the way, up to 825M for e.g. ./mongo/s/catalog/config_server_catalog_test.

Have they always been this large? Or has something regressed recently to make them these big? A stripped mongod from this build is only 31MB.

It looks like all the _test binaries have debug symbols attached. So I will try to investigate if I can make the _test binaries to be linked/compiled without debug symbols, to save on the build time disk space.