[INFO] updating cached repository https://github.com/mullvad/mullvadvpn-app
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/mullvad/mullvadvpn-app
[INFO] [stderr]  - [deleted]           (none)     -> duplicate-tunnel-fd
[INFO] [stderr]  * [new branch]        login-on-api-error -> login-on-api-error
[INFO] [stderr]    c92f52de..fb69385f  master             -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fb69385fbc9c999c5ac5301830d08f67192cef2e
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: invalid Cargo.toml syntax
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.