Comparing errors in golang

I am writing a basic password authentication system in golang.
I am using bcrypt to hash a password and store the hash in the database.
Here's a function to get authenticated account from database.

func FindAccount(db *gorp.DbMap, email, password string) (*Account, error) {
    account, err := FindByEmail(db, email)
    if err != nil {
        return nil, err
    }
    if account == nil {
        return nil, nil
    }
    if err := bcrypt.CompareHashAndPassword([]byte(account.HashedPassword), []byte(password)); err != nil {
        return nil, err
    }
    return account, nil
}

      

        
        
        
      

    

And the caller:

account, err := FindAccount(db, email, password)
if err != nil {
    if err == bcrypt.ErrMismatchedHashAndPassword {
        log.Printf("Why doesn't this condition match?")
        return nil, EmailPasswordInvalidError{}
    }

    log.Printf("bcrypt.Err: %p, %#v", bcrypt.ErrMismatchedHashAndPassword, bcrypt.ErrMismatchedHashAndPassword)
    log.Printf("err       : %p, %#v", err, err)
    return nil, err
}

      

        
        
        
      

    

And when I use this code and provide the wrong email and password, this is what happens:

sessions.go:51: bcrypt.Err: 0xc2080290b0, &errors.errorString{s:"crypto/bcrypt: hashedPassword is not the hash of the given password"}
sessions.go:52: err       : 0xc2080291e0, &errors.errorString{s:"crypto/bcrypt: hashedPassword is not the hash of the given password"}

      

        
        
        
      

    

Why is the pointer address different? Can't we just compare the errors?