error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
  --> $DIR/slice-issue-87994.rs:3:12
   |
LL |   for _ in v[1..] {
   |            ^^^^^^ expected an implementor of trait `IntoIterator`
   |
   = note: the trait bound `[i32]: IntoIterator` is not satisfied
   = note: required because of the requirements on the impl of `IntoIterator` for `[i32]`
help: consider borrowing here
   |
LL |   for _ in &v[1..] {
   |            +
LL |   for _ in &mut v[1..] {
   |            ++++

error[E0277]: `[i32]` is not an iterator
  --> $DIR/slice-issue-87994.rs:3:12
   |
LL |   for _ in v[1..] {
   |            ^^^^^^ expected an implementor of trait `IntoIterator`
   |
   = note: the trait bound `[i32]: IntoIterator` is not satisfied
   = note: required because of the requirements on the impl of `IntoIterator` for `[i32]`
help: consider borrowing here
   |
LL |   for _ in &v[1..] {
   |            +
LL |   for _ in &mut v[1..] {
   |            ++++

error[E0277]: the size for values of type `[K]` cannot be known at compilation time
  --> $DIR/slice-issue-87994.rs:11:13
   |
LL |   for i2 in v2[1..] {
   |             ^^^^^^^ expected an implementor of trait `IntoIterator`
   |
   = note: the trait bound `[K]: IntoIterator` is not satisfied
   = note: required because of the requirements on the impl of `IntoIterator` for `[K]`
help: consider borrowing here
   |
LL |   for i2 in &v2[1..] {
   |             +
LL |   for i2 in &mut v2[1..] {
   |             ++++

error[E0277]: `[K]` is not an iterator
  --> $DIR/slice-issue-87994.rs:11:13
   |
LL |   for i2 in v2[1..] {
   |             ^^^^^^^ expected an implementor of trait `IntoIterator`
   |
   = note: the trait bound `[K]: IntoIterator` is not satisfied
   = note: required because of the requirements on the impl of `IntoIterator` for `[K]`
help: consider borrowing here
   |
LL |   for i2 in &v2[1..] {
   |             +
LL |   for i2 in &mut v2[1..] {
   |             ++++

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0277`.