error: unknown start of token: `
  --> <crate attribute>:1:4
   |
LL | #![`%~@$#]
   |    ^
   |
help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
   |
LL - #![`%~@$#]
LL + #!['%~@$#]
   |

error: expected identifier, found `%`
  --> <crate attribute>:1:5
   |
LL | #![`%~@$#]
   |     ^ expected identifier

error: aborting due to 2 previous errors