[INFO] updating cached repository https://github.com/mimblewimble/grin
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/mimblewimble/grin
[INFO] [stderr]  * [new branch]        current/4.0.x -> current/4.0.x
[INFO] [stderr]    e7d2c71c..3c06672e  master        -> master
[INFO] [stderr]  * [new tag]           v4.0.0        -> v4.0.0
[INFO] [stderr]  * [new tag]           v4.0.0-beta.1 -> v4.0.0-beta.1
[INFO] [stderr]  * [new tag]           v4.0.0-beta.2 -> v4.0.0-beta.2
[INFO] [stderr]  * [new tag]           v4.0.0-rc.1   -> v4.0.0-rc.1
[INFO] [stderr]  * [new tag]           v4.0.1        -> v4.0.1
[INFO] [stderr]  * [new tag]           v4.0.2        -> v4.0.2
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c06672e9bc96eb8c9efafed9e13e43f15bba7a6
[ERROR] this task or one of its parent failed!
[ERROR] command `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.