error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:165:5
   |
LL |     _n += 1;
   |     ^^^^^^^
   |
   = note: `-D clippy::arithmetic-side-effects` implied by `-D warnings`

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:166:5
   |
LL |     _n += &1;
   |     ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:167:5
   |
LL |     _n -= 1;
   |     ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:168:5
   |
LL |     _n -= &1;
   |     ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:169:5
   |
LL |     _n /= 0;
   |     ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:170:5
   |
LL |     _n /= &0;
   |     ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:171:5
   |
LL |     _n %= 0;
   |     ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:172:5
   |
LL |     _n %= &0;
   |     ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:173:5
   |
LL |     _n *= 2;
   |     ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:174:5
   |
LL |     _n *= &2;
   |     ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:177:10
   |
LL |     _n = _n + 1;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:178:10
   |
LL |     _n = _n + &1;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:179:10
   |
LL |     _n = 1 + _n;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:180:10
   |
LL |     _n = &1 + _n;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:181:10
   |
LL |     _n = _n - 1;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:182:10
   |
LL |     _n = _n - &1;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:183:10
   |
LL |     _n = 1 - _n;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:184:10
   |
LL |     _n = &1 - _n;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:185:10
   |
LL |     _n = _n / 0;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:186:10
   |
LL |     _n = _n / &0;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:187:10
   |
LL |     _n = _n % 0;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:188:10
   |
LL |     _n = _n % &0;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:189:10
   |
LL |     _n = _n * 2;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:190:10
   |
LL |     _n = _n * &2;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:191:10
   |
LL |     _n = 2 * _n;
   |          ^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:192:10
   |
LL |     _n = &2 * _n;
   |          ^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:193:10
   |
LL |     _n = 23 + &85;
   |          ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:194:10
   |
LL |     _n = &23 + 85;
   |          ^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:195:10
   |
LL |     _n = &23 + &85;
   |          ^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:198:13
   |
LL |     let _ = Custom + 0;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:199:13
   |
LL |     let _ = Custom + 1;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:200:13
   |
LL |     let _ = Custom + 2;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:201:13
   |
LL |     let _ = Custom + 0.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:202:13
   |
LL |     let _ = Custom + 1.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:203:13
   |
LL |     let _ = Custom + 2.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:204:13
   |
LL |     let _ = Custom - 0;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:205:13
   |
LL |     let _ = Custom - 1;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:206:13
   |
LL |     let _ = Custom - 2;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:207:13
   |
LL |     let _ = Custom - 0.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:208:13
   |
LL |     let _ = Custom - 1.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:209:13
   |
LL |     let _ = Custom - 2.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:210:13
   |
LL |     let _ = Custom / 0;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:211:13
   |
LL |     let _ = Custom / 1;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:212:13
   |
LL |     let _ = Custom / 2;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:213:13
   |
LL |     let _ = Custom / 0.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:214:13
   |
LL |     let _ = Custom / 1.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:215:13
   |
LL |     let _ = Custom / 2.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:216:13
   |
LL |     let _ = Custom * 0;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:217:13
   |
LL |     let _ = Custom * 1;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:218:13
   |
LL |     let _ = Custom * 2;
   |             ^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:219:13
   |
LL |     let _ = Custom * 0.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:220:13
   |
LL |     let _ = Custom * 1.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:221:13
   |
LL |     let _ = Custom * 2.0;
   |             ^^^^^^^^^^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:224:10
   |
LL |     _n = -_n;
   |          ^^^

error: arithmetic operation that can potentially result in unexpected side-effects
  --> $DIR/arithmetic_side_effects.rs:225:10
   |
LL |     _n = -&_n;
   |          ^^^^

error: aborting due to 55 previous errors