internal: Ensure tracing is configured in slow tests

Wilfred · Wilfred · commit 23fe3afc3e14 · 2026-04-02T17:28:43.000+01:00
rust-lang/rust-analyzer#16394 changed the logging initialisation to create a Config struct, but never did anything with it. Call `.init()` so slow tests have tracing configured. You can test this by adding a test failure to a slow test, e.g. `test_format_document_2018`, and then running it: ``` $ RA_LOG=trace RUN_SLOW_TESTS=1 cargo t test_format_document_2018 ``` Previously this didn't log anything, even though RA_LOG was set.
diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/support.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/support.rs
@@ -173,7 +173,8 @@ impl Project<'_> {
                 chalk_filter: std::env::var("CHALK_DEBUG").ok(),
                 profile_filter: std::env::var("RA_PROFILE").ok(),
                 json_profile_filter: std::env::var("RA_PROFILE_JSON").ok(),
-            };
+            }
+            .init();
         });
 
         let FixtureWithProjectMeta {
