feat: add dist

bench_app/target/debug/build/anyhow-8aee44fde37e9812/out/probe.rs

@@ -0,0 +1,40 @@
+
+    #![feature(error_generic_member_access, provide_any)]
+
+    use std::any::{Demand, Provider};
+    use std::backtrace::{Backtrace, BacktraceStatus};
+    use std::error::Error;
+    use std::fmt::{self, Display};
+
+    #[derive(Debug)]
+    struct E {
+        backtrace: Backtrace,
+    }
+
+    impl Display for E {
+        fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
+            unimplemented!()
+        }
+    }
+
+    impl Error for E {
+        fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
+            demand.provide_ref(&self.backtrace);
+        }
+    }
+
+    struct P;
+
+    impl Provider for P {
+        fn provide<'a>(&'a self, _demand: &mut Demand<'a>) {}
+    }
+
+    const _: fn() = || {
+        let backtrace: Backtrace = Backtrace::capture();
+        let status: BacktraceStatus = backtrace.status();
+        match status {
+            BacktraceStatus::Captured | BacktraceStatus::Disabled | _ => {}
+        }
+    };
+
+    const _: fn(&dyn Error) -> Option<&Backtrace> = |err| err.request_ref::<Backtrace>();