File: const_arg_trivial_macro_expansion-4.stderr

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error: generic parameters may not be used in const operations
  --> $DIR/const_arg_trivial_macro_expansion-4.rs:7:9
   |
LL |         N
   |         ^ cannot perform const operation using `N`
...
LL | fn foo<const N: usize>() -> Foo<{ arg!{} arg!{} }> { loop {} }
   |                                   ------ in this macro invocation
   |
   = help: const parameters may only be used as standalone arguments here, i.e. `N`
   = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
   = note: this error originates in the macro `arg` (in Nightly builds, run with -Z macro-backtrace for more info)

error: generic parameters may not be used in const operations
  --> $DIR/const_arg_trivial_macro_expansion-4.rs:7:9
   |
LL |         N
   |         ^ cannot perform const operation using `N`
...
LL | fn foo<const N: usize>() -> Foo<{ arg!{} arg!{} }> { loop {} }
   |                                          ------ in this macro invocation
   |
   = help: const parameters may only be used as standalone arguments here, i.e. `N`
   = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
   = note: this error originates in the macro `arg` (in Nightly builds, run with -Z macro-backtrace for more info)

error: generic parameters may not be used in const operations
  --> $DIR/const_arg_trivial_macro_expansion-4.rs:15:46
   |
LL | fn bar<const N: usize>() -> [(); { empty!{}; N }] { loop {} }
   |                                              ^ cannot perform const operation using `N`
   |
   = help: const parameters may only be used as standalone arguments here, i.e. `N`
   = help: add `#![feature(generic_const_exprs)]` to allow generic const expressions

error: aborting due to 3 previous errors