| error[E0015]: cannot call non-const formatting macro in constant functions | 
 |   --> $DIR/format.rs:2:5 | 
 |    | | 
 | LL |     panic!("{:?}", 0); | 
 |    |     ^^^^^^^^^^^^^^^^^ | 
 |    | | 
 |    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants | 
 |  | 
 | error[E0015]: cannot call non-const formatting macro in constant functions | 
 |   --> $DIR/format.rs:7:5 | 
 |    | | 
 | LL |     println!("{:?}", 0); | 
 |    |     ^^^^^^^^^^^^^^^^^^^ | 
 |    | | 
 |    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants | 
 |    = note: this error originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) | 
 |  | 
 | error[E0015]: cannot call non-const function `_print` in constant functions | 
 |   --> $DIR/format.rs:7:5 | 
 |    | | 
 | LL |     println!("{:?}", 0); | 
 |    |     ^^^^^^^^^^^^^^^^^^^ | 
 |    | | 
 |    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants | 
 |    = note: this error originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) | 
 |  | 
 | error[E0015]: cannot call non-const formatting macro in constant functions | 
 |   --> $DIR/format.rs:13:5 | 
 |    | | 
 | LL |     format_args!("{}", 0); | 
 |    |     ^^^^^^^^^^^^^^^^^^^^^ | 
 |    | | 
 |    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants | 
 |  | 
 | error: aborting due to 4 previous errors | 
 |  | 
 | For more information about this error, try `rustc --explain E0015`. |