error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:11:27
   |
LL | fn _one_unused(flag: u32, a: usize) -> usize {
   |                           ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:12:53
   |
LL |     if flag == 0 { 0 } else { _one_unused(flag - 1, a) }
   |                                                     ^
   = note: `-D clippy::only-used-in-recursion` implied by `-D warnings`

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:15:27
   |
LL | fn _two_unused(flag: u32, a: u32, b: i32) -> usize {
   |                           ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:16:53
   |
LL |     if flag == 0 { 0 } else { _two_unused(flag - 1, a, b) }
   |                                                     ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:15:35
   |
LL | fn _two_unused(flag: u32, a: u32, b: i32) -> usize {
   |                                   ^ help: if this is intentional, prefix it with an underscore: `_b`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:16:56
   |
LL |     if flag == 0 { 0 } else { _two_unused(flag - 1, a, b) }
   |                                                        ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:19:26
   |
LL | fn _with_calc(flag: u32, a: i64) -> usize {
   |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:23:32
   |
LL |         _with_calc(flag - 1, (-a + 10) * 5)
   |                                ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:32:33
   |
LL | fn _used_with_unused(flag: u32, a: i32, b: i32) -> usize {
   |                                 ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:36:38
   |
LL |         _used_with_unused(flag - 1, -a, a + b)
   |                                      ^  ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:32:41
   |
LL | fn _used_with_unused(flag: u32, a: i32, b: i32) -> usize {
   |                                         ^ help: if this is intentional, prefix it with an underscore: `_b`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:36:45
   |
LL |         _used_with_unused(flag - 1, -a, a + b)
   |                                             ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:40:35
   |
LL | fn _codependent_unused(flag: u32, a: i32, b: i32) -> usize {
   |                                   ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:44:39
   |
LL |         _codependent_unused(flag - 1, a * b, a + b)
   |                                       ^      ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:40:43
   |
LL | fn _codependent_unused(flag: u32, a: i32, b: i32) -> usize {
   |                                           ^ help: if this is intentional, prefix it with an underscore: `_b`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:44:43
   |
LL |         _codependent_unused(flag - 1, a * b, a + b)
   |                                           ^      ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:48:30
   |
LL | fn _not_primitive(flag: u32, b: String) -> usize {
   |                              ^ help: if this is intentional, prefix it with an underscore: `_b`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:49:56
   |
LL |     if flag == 0 { 0 } else { _not_primitive(flag - 1, b) }
   |                                                        ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:55:29
   |
LL |     fn _method(flag: usize, a: usize) -> usize {
   |                             ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:56:59
   |
LL |         if flag == 0 { 0 } else { Self::_method(flag - 1, a) }
   |                                                           ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:59:22
   |
LL |     fn _method_self(&self, flag: usize, a: usize) -> usize {
   |                      ^^^^
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:60:35
   |
LL |         if flag == 0 { 0 } else { self._method_self(flag - 1, a) }
   |                                   ^^^^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:59:41
   |
LL |     fn _method_self(&self, flag: usize, a: usize) -> usize {
   |                                         ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:60:63
   |
LL |         if flag == 0 { 0 } else { self._method_self(flag - 1, a) }
   |                                                               ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:70:26
   |
LL |     fn method(flag: u32, a: usize) -> usize {
   |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:71:58
   |
LL |         if flag == 0 { 0 } else { Self::method(flag - 1, a) }
   |                                                          ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:74:38
   |
LL |     fn method_self(&self, flag: u32, a: usize) -> usize {
   |                                      ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:75:62
   |
LL |         if flag == 0 { 0 } else { self.method_self(flag - 1, a) }
   |                                                              ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:100:26
   |
LL |     fn method(flag: u32, a: usize) -> usize {
   |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:101:58
   |
LL |         if flag == 0 { 0 } else { Self::method(flag - 1, a) }
   |                                                          ^

error: parameter is only used in recursion
  --> $DIR/only_used_in_recursion.rs:104:38
   |
LL |     fn method_self(&self, flag: u32, a: usize) -> usize {
   |                                      ^ help: if this is intentional, prefix it with an underscore: `_a`
   |
note: parameter used here
  --> $DIR/only_used_in_recursion.rs:105:62
   |
LL |         if flag == 0 { 0 } else { self.method_self(flag - 1, a) }
   |                                                              ^

error: aborting due to 16 previous errors