error: usage of `contains_key` followed by `insert` on a `HashMap`
  --> $DIR/entry.rs:19:5
   |
LL | /     if !m.contains_key(&k) {
LL | |         m.insert(k, v);
LL | |     }
   | |_____^ help: consider using: `m.entry(k).or_insert(v)`
   |
   = note: `-D clippy::map-entry` implied by `-D warnings`

error: usage of `contains_key` followed by `insert` on a `HashMap`
  --> $DIR/entry.rs:25:5
   |
LL | /     if !m.contains_key(&k) {
LL | |         foo();
LL | |         m.insert(k, v);
LL | |     }
   | |_____^ help: consider using: `m.entry(k)`

error: usage of `contains_key` followed by `insert` on a `HashMap`
  --> $DIR/entry.rs:32:5
   |
LL | /     if !m.contains_key(&k) {
LL | |         m.insert(k, v)
LL | |     } else {
LL | |         None
LL | |     };
   | |_____^ help: consider using: `m.entry(k)`

error: usage of `contains_key` followed by `insert` on a `HashMap`
  --> $DIR/entry.rs:40:5
   |
LL | /     if m.contains_key(&k) {
LL | |         None
LL | |     } else {
LL | |         m.insert(k, v)
LL | |     };
   | |_____^ help: consider using: `m.entry(k)`

error: usage of `contains_key` followed by `insert` on a `HashMap`
  --> $DIR/entry.rs:48:5
   |
LL | /     if !m.contains_key(&k) {
LL | |         foo();
LL | |         m.insert(k, v)
LL | |     } else {
LL | |         None
LL | |     };
   | |_____^ help: consider using: `m.entry(k)`

error: usage of `contains_key` followed by `insert` on a `HashMap`
  --> $DIR/entry.rs:57:5
   |
LL | /     if m.contains_key(&k) {
LL | |         None
LL | |     } else {
LL | |         foo();
LL | |         m.insert(k, v)
LL | |     };
   | |_____^ help: consider using: `m.entry(k)`

error: usage of `contains_key` followed by `insert` on a `BTreeMap`
  --> $DIR/entry.rs:66:5
   |
LL | /     if !m.contains_key(&k) {
LL | |         foo();
LL | |         m.insert(k, v)
LL | |     } else {
LL | |         None
LL | |     };
   | |_____^ help: consider using: `m.entry(k)`

error: aborting due to 7 previous errors