error[E0015]: calls in constant functions are limited to constant functions, tuple structs and tuple variants
  --> $DIR/const-fn-not-safe-for-const.rs:24:5
   |
LL |     random() //~ ERROR E0015
   |     ^^^^^^^^

error[E0013]: constant functions cannot refer to statics, use a constant instead
  --> $DIR/const-fn-not-safe-for-const.rs:30:5
   |
LL |     Y
   |     ^

error[E0013]: constant functions cannot refer to statics, use a constant instead
  --> $DIR/const-fn-not-safe-for-const.rs:35:5
   |
LL |     &Y
   |     ^^

error[E0658]: let bindings in constant functions are unstable (see issue #48821)
  --> $DIR/const-fn-not-safe-for-const.rs:40:13
   |
LL |     let x = 22;
   |             ^^
   |
   = help: add #![feature(const_let)] to the crate attributes to enable

error[E0658]: statements in constant functions are unstable (see issue #48821)
  --> $DIR/const-fn-not-safe-for-const.rs:40:13
   |
LL |     let x = 22;
   |             ^^
   |
   = help: add #![feature(const_let)] to the crate attributes to enable

error[E0658]: let bindings in constant functions are unstable (see issue #48821)
  --> $DIR/const-fn-not-safe-for-const.rs:43:13
   |
LL |     let y = 44;
   |             ^^
   |
   = help: add #![feature(const_let)] to the crate attributes to enable

error[E0658]: statements in constant functions are unstable (see issue #48821)
  --> $DIR/const-fn-not-safe-for-const.rs:43:13
   |
LL |     let y = 44;
   |             ^^
   |
   = help: add #![feature(const_let)] to the crate attributes to enable

error[E0658]: let bindings in constant functions are unstable (see issue #48821)
  --> $DIR/const-fn-not-safe-for-const.rs:46:5
   |
LL |     x + y
   |     ^
   |
   = help: add #![feature(const_let)] to the crate attributes to enable

error[E0658]: let bindings in constant functions are unstable (see issue #48821)
  --> $DIR/const-fn-not-safe-for-const.rs:46:9
   |
LL |     x + y
   |         ^
   |
   = help: add #![feature(const_let)] to the crate attributes to enable

error: aborting due to 9 previous errors

Some errors occurred: E0013, E0015, E0658.
For more information about an error, try `rustc --explain E0013`.