Rollup merge of #57010 - phansch:run_compiletest_tests_on_ci, r=kennytm
Rollup merge of #57010 - phansch:run_compiletest_tests_on_ci, r=kennytm

Actually run compiletest tests on CI

I was assuming that https://github.com/rust-lang/rust/pull/56792 would
have resulted in compiletest tests being executed on CI. However, I
couldn't find any mentions of the unit test names in any CI logs.

This adds the compiletest test execution to the checktools.sh script.

graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust