it may be a bug in Rust installer, but build.sh fails with error ``` % docker run --rm \ -u $(id -u):$(id -g) \ -v ${PWD}:/code \ -v ${HOME}/.cargo/registry:/cargo/registry \ -v ${HOME}/.cargo/git:/cargo/git \ softprops/lambda-rust /usr/local/bin/build.sh: line 35: //.cargo/env: No such file or directory ```