[INFO] updating cached repository https://github.com/kolloch/cargo2nix
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/kolloch/cargo2nix
[INFO] [stderr]    874272b..a96a37b  master           -> master
[INFO] [stderr]  * [new branch]      pkolloch-compiler_builtins_sample -> pkolloch-compiler_builtins_sample
[INFO] [stderr]  * [new branch]      pkolloch-sources -> pkolloch-sources
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a96a37b8edd7cb4c5ee5eb1dcb78aea8c3424943
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.