error: consider choosing a more descriptive name
  --> $DIR/non_expressive_names.rs:27:9
   |
LL |     let _1 = 1; //~ERROR Consider a more descriptive name
   |         ^^
   |
   = note: `-D clippy::just-underscores-and-digits` implied by `-D warnings`

error: consider choosing a more descriptive name
  --> $DIR/non_expressive_names.rs:28:9
   |
LL |     let ____1 = 1; //~ERROR Consider a more descriptive name
   |         ^^^^^

error: consider choosing a more descriptive name
  --> $DIR/non_expressive_names.rs:29:9
   |
LL |     let __1___2 = 12; //~ERROR Consider a more descriptive name
   |         ^^^^^^^

error: consider choosing a more descriptive name
  --> $DIR/non_expressive_names.rs:49:13
   |
LL |         let _1 = 1;
   |             ^^

error: consider choosing a more descriptive name
  --> $DIR/non_expressive_names.rs:50:13
   |
LL |         let ____1 = 1;
   |             ^^^^^

error: consider choosing a more descriptive name
  --> $DIR/non_expressive_names.rs:51:13
   |
LL |         let __1___2 = 12;
   |             ^^^^^^^

error: aborting due to 6 previous errors