nix: update firmware mapping extractor Relied on the presence of /usr/bin/env, which doesn't appear to exist in the sandbox.

nix: update AVR toolchain dependencies for nix's new cross compilers This breaks compatibility with 18.09, and builds with nixpkgs 19.03 and newer.

Merge remote-tracking branch 'github/public'

Remove committed lock file from Ruby gem, add lock file to example scripts.

Merge pull request #15 from thefloweringash/compiler-compat Compiler compatibility

Add MonadFail instance for ErrorState This not strictly required for ErrorState, but it is not unreasonable for ErrorState to also provide MonadFail, and our single consumer requires it.

Update IntMap consumers for newer containers

Update warnings configuration for GHC This seems to have changed around the release of GHC 8.0.x.

Merged in build-tweaks (pull request #9) Build tweaks

Nix: use default ghc version