Sorry to be the bearer of versioning news, 0.1.10 contains a backwards-incompatible change with respect to 0.1.8 and so on - the feature flags around error_impls changed, and had been accidentally(?) including error_impls for specific OSes regardless of std being selected or not.
The change around feature flags makes sense, but without bumping major versions, version 0.1.10 can cause breakages: see the end of the log here. The missing impl is because minisign depends on getrandom = "0.1.3", where 0.1.10 should be a backwards compatible update, but is not due to the missing trait. We can work around that by specifying std, but I wanted to make sure y'all knew about this.