don't fail manifest creation if the toolstate file is missing or mal-formed
don't fail manifest creation if the toolstate file is missing or mal-formed

aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust