[INFO] updating cached repository https://github.com/FoamCactus/euler
[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/FoamCactus/euler
[INFO] [stderr]    d1fa4ea..dc6b1d5  master        -> master
[INFO] [stderr]    309a5c9..6c6ebce  sweeperDev    -> sweeperDev
[INFO] [stderr]  * [new branch]      threadpooling -> threadpooling
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc6b1d5c291c159ab5d6227a2740cb17b5513104
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.