stack-2.7.1-linux-aarch64.tar.gz.asc appears invalid

[AlistairB]

General summary/comments (optional)

stack-2.7.1-linux-aarch64.tar.gz.asc does not appear to verify stack-2.7.1-linux-aarch64.tar.gz with the standard signing key. Alternatively doing the stack-2.7.3-linux-aarch64.tar.gz release would also solve my problem. (I am trying to add aarch64 support to the Haskell docker images).

Steps to reproduce

1. Install gpg.
2. gpg --batch --keyserver keyserver.ubuntu.com --receive-keys C5705533DA4F78D8664B5DC0575159689BEFB442
3. curl -sSLO https://github.com/commercialhaskell/stack/releases/download/v2.7.1/stack-2.7.1-linux-aarch64.tar.gz
4. curl -sSLO https://github.com/commercialhaskell/stack/releases/download/v2.7.1/stack-2.7.1-linux-aarch64.tar.gz.asc
5. gpg --batch --verify stack-2.7.1-linux-aarch64.tar.gz.asc stack-2.7.1-linux-aarch64.tar.gz

Expected

It verifies. 2.7.1 (and 2.7.3) x86_64 releases work fine with this method.

Actual

gpg: Signature made Mon 31 May 2021 03:18:12 AEST
gpg:                using RSA key 2E15FEF6ACB230D64C56D19A907EAE2F42B52046
gpg: Can't check signature: No public key

Stack version

N/A

Method of installation

N/A

[AlistairB]

I'm just going to close this as the binary itself does not actually work for me. So the signing issue is moot. I am hitting this error #2103 (comment) Cheers