[INFO] updating cached repository https://github.com/liujing2/firecracker
[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/liujing2/firecracker
[INFO] [stderr]  - [deleted]         (none)     -> rust-vmm
[INFO] [stderr]  * [new branch]      master       -> master
[INFO] [stderr]  * [new branch]      merge_0.15.2 -> merge_0.15.2
[INFO] [stderr]  * [new branch]      v0.15.1      -> v0.15.1
[INFO] [stderr]  * [new branch]      v0.15.2      -> v0.15.2
[INFO] [stderr]  * [new tag]         v0.1.0       -> v0.1.0
[INFO] [stderr]  * [new tag]         v0.1.1       -> v0.1.1
[INFO] [stderr]  * [new tag]         v0.10.0      -> v0.10.0
[INFO] [stderr]  * [new tag]         v0.10.1      -> v0.10.1
[INFO] [stderr]  * [new tag]         v0.11.0      -> v0.11.0
[INFO] [stderr]  * [new tag]         v0.12.0      -> v0.12.0
[INFO] [stderr]  * [new tag]         v0.13.0      -> v0.13.0
[INFO] [stderr]  * [new tag]         v0.15.1      -> v0.15.1
[INFO] [stderr]  * [new tag]         v0.15.2      -> v0.15.2
[INFO] [stderr]  * [new tag]         v0.2.0       -> v0.2.0
[INFO] [stderr]  * [new tag]         v0.3.0       -> v0.3.0
[INFO] [stderr]  * [new tag]         v0.4.0       -> v0.4.0
[INFO] [stderr]  * [new tag]         v0.5.0       -> v0.5.0
[INFO] [stderr]  * [new tag]         v0.6.0       -> v0.6.0
[INFO] [stderr]  * [new tag]         v0.7.0       -> v0.7.0
[INFO] [stderr]  * [new tag]         v0.9.0       -> v0.9.0
[INFO] [stderr]  * [new tag]           v0.14.0      -> v0.14.0
[INFO] [stderr]  * [new tag]           v0.15.0      -> v0.15.0
[INFO] [stderr]  * [new tag]           v0.16.0      -> v0.16.0
[INFO] [stderr]  * [new tag]           v0.17.0      -> v0.17.0
[INFO] [stderr]  * [new tag]           v0.18.0      -> v0.18.0
[INFO] [stderr]  * [new tag]           v0.19.0      -> v0.19.0
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] HEAD
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.