Add existing files

target/debug/build/num-rational-21eca914ba85d7ff/stderr

@@ -0,0 +1,11 @@
+error[E0277]: the trait bound `isize: std::fmt::LowerExp` is not satisfied
+ --> <anon>:1:42
+  |
+1 | pub fn probe() { let _ = format!("{:e}", 0_isize); }
+  |                                          ^^^^^^^ the trait `std::fmt::LowerExp` is not implemented for `isize`
+  |
+  = note: required by `std::fmt::LowerExp::fmt`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.