|  | error: constant `foo` is never used | 
|  | --> $DIR/issue-17718-const-naming.rs:4:7 | 
|  | | | 
|  | LL | const foo: isize = 3; | 
|  | |       ^^^ | 
|  | | | 
|  | note: the lint level is defined here | 
|  | --> $DIR/issue-17718-const-naming.rs:2:9 | 
|  | | | 
|  | LL | #![deny(warnings)] | 
|  | |         ^^^^^^^^ | 
|  | = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]` | 
|  |  | 
|  | error: constant `foo` should have an upper case name | 
|  | --> $DIR/issue-17718-const-naming.rs:4:7 | 
|  | | | 
|  | LL | const foo: isize = 3; | 
|  | |       ^^^ help: convert the identifier to upper case (notice the capitalization): `FOO` | 
|  | | | 
|  | = note: `#[deny(non_upper_case_globals)]` implied by `#[deny(warnings)]` | 
|  |  | 
|  | error: aborting due to 2 previous errors | 
|  |  |