error: unknown byte escape: f
  --> $DIR/byte-literals.rs:3:21
   |
LL | static FOO: u8 = b'\f';
   |                     ^ unknown byte escape

error: unknown byte escape: f
  --> $DIR/byte-literals.rs:6:8
   |
LL |     b'\f';
   |        ^ unknown byte escape

error: invalid character in numeric character escape: Z
  --> $DIR/byte-literals.rs:7:10
   |
LL |     b'\x0Z';
   |          ^

error: byte constant must be escaped: \t
  --> $DIR/byte-literals.rs:8:7
   |
LL |     b'    ';
   |       ^^^^

error: byte constant must be escaped: '
  --> $DIR/byte-literals.rs:9:7
   |
LL |     b''';
   |       ^

error: byte constant must be ASCII. Use a \xHH escape for a non-ASCII byte
  --> $DIR/byte-literals.rs:10:7
   |
LL |     b'é';
   |       ^

error[E0763]: unterminated byte constant
  --> $DIR/byte-literals.rs:11:6
   |
LL |     b'a
   |      ^^^^

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0763`.