[INFO] updating cached repository https://github.com/robohouse-delft/show-image
[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/robohouse-delft/show-image
[INFO] [stderr]  - [deleted]         (none)     -> 0.6
[INFO] [stderr]    dfd0187..ed031f4  master     -> master
[INFO] [stderr]  * [new branch]      v0.6       -> v0.6
[INFO] [stderr]  * [new branch]      wgpu       -> wgpu
[INFO] [stderr]  * [new tag]         v0.6.4     -> v0.6.4
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed031f448291d4f4ed319f8f9bb23b58fa69a671
[ERROR] this task or one of its parent failed!
[ERROR] command `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.