error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:22:5 | LL | let mut vec1 = Vec::with_capacity(len); | ----------------------- help: consider replace allocation with: `vec![0; len]` LL | vec1.extend(repeat(0).take(len)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::slow-vector-initialization` implied by `-D warnings` error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:26:5 | LL | let mut vec2 = Vec::with_capacity(len - 10); | ---------------------------- help: consider replace allocation with: `vec![0; len - 10]` LL | vec2.extend(repeat(0).take(len - 10)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:40:5 | LL | let mut resized_vec = Vec::with_capacity(30); | ---------------------- help: consider replace allocation with: `vec![0; 30]` LL | resized_vec.resize(30, 0); | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:43:5 | LL | let mut extend_vec = Vec::with_capacity(30); | ---------------------- help: consider replace allocation with: `vec![0; 30]` LL | extend_vec.extend(repeat(0).take(30)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:50:5 | LL | let mut vec1 = Vec::with_capacity(len); | ----------------------- help: consider replace allocation with: `vec![0; len]` LL | vec1.resize(len, 0); | ^^^^^^^^^^^^^^^^^^^ error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:58:5 | LL | let mut vec3 = Vec::with_capacity(len - 10); | ---------------------------- help: consider replace allocation with: `vec![0; len - 10]` LL | vec3.resize(len - 10, 0); | ^^^^^^^^^^^^^^^^^^^^^^^^ error: slow zero-filling initialization --> $DIR/slow_vector_initialization.rs:62:5 | LL | vec1 = Vec::with_capacity(10); | ---------------------- help: consider replace allocation with: `vec![0; 10]` LL | vec1.resize(10, 0); | ^^^^^^^^^^^^^^^^^^ error: aborting due to 7 previous errors