[INFO] updating cached repository https://github.com/brianp/muxed
[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/brianp/muxed
[INFO] [stderr]    19b44ef..c104abd  master            -> master
[INFO] [stderr]  * [new branch]      refactor-old-test -> refactor-old-test
[INFO] [stderr]  * [new branch]      refactor/test-standardization -> refactor/test-standardization
[INFO] [stderr]  * [new branch]      travis-updates    -> travis-updates
[INFO] [stderr]  * [new tag]         0.7.0             -> 0.7.0
[INFO] [stderr]  * [new tag]         0.7.1             -> 0.7.1
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c104abd5fc0cfa76259652625c195b2bbcaa8bb6
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.