The SPL build currently gives this warning every time:
```
warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
package: /home/jon/src/solana/solana-program-library/managed-token/program/Cargo.toml
workspace: /home/jon/src/solana/solana-program-library/Cargo.toml
```
Remove the ignored `profile.release` configuration in managed-token.