compiletest: allow `.` in remote test paths (can arise from revisions).

src/tools/compiletest/src/runtest.rs

@@ -3227,7 +3227,7 @@ fn load_compare_outputs(
                 // so it needs to be removed when comparing the run-pass test execution output
                 lazy_static! {
                     static ref REMOTE_TEST_RE: Regex = Regex::new(
-                        "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-]+)+\", waiting for result\n"
+                        "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-.]+)+\", waiting for result\n"
                     )
                     .unwrap();
                 }