keystore.go:114:17: cannot use &keystoreWallet literal (type *keystoreWallet) as type accounts.Wallet in assignment

[somanysteves]

go run src/ethcracker.go -pk ~/Downloads/keystore-m_datestuff-stamp.json -t ./template.txt -min_len 7 -max_len 20 -threads 4

results in

src/accounts/keystore/keystore.go:114:17: cannot use &keystoreWallet literal (type *keystoreWallet) as type accounts.Wallet in assignment:
*keystoreWallet does not implement accounts.Wallet (wrong type for SelfDerive method)
have SelfDerive(accounts.DerivationPath, ethereum.ChainStateReader)
want SelfDerive([]accounts.DerivationPath, ethereum.ChainStateReader)
src/accounts/keystore/keystore.go:153:49: cannot use wallet (type *keystoreWallet) as type accounts.Wallet in field value:
*keystoreWallet does not implement accounts.Wallet (wrong type for SelfDerive method)
have SelfDerive(accounts.DerivationPath, ethereum.ChainStateReader)
want SelfDerive([]accounts.DerivationPath, ethereum.ChainStateReader)
src/accounts/keystore/keystore.go:154:20: cannot use wallet (type *keystoreWallet) as type accounts.Wallet in append:
*keystoreWallet does not implement accounts.Wallet (wrong type for SelfDerive method)
have SelfDerive(accounts.DerivationPath, ethereum.ChainStateReader)
want SelfDerive([]accounts.DerivationPath, ethereum.ChainStateReader)

Don't really know go. but learning is always good. Any hint(s) are welcome.