[INFO] updating cached repository https://github.com/mimblewimble/grin
[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/mimblewimble/grin
[INFO] [stderr]    ef853ae4..8a15007c  master     -> master
[INFO] [stderr]  * [new tag]           v3.1.0-beta.1 -> v3.1.0-beta.1
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a15007c8a85b701957120c20a91500ed44c6e35
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.