[INFO] updating cached repository https://github.com/paritytech/parity-ethereum
[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/paritytech/parity-ethereum
[INFO] [stderr]  - [deleted]             (none)     -> SwitchFromEthKeyToCrypto
[INFO] [stderr]  - [deleted]             (none)     -> dp/fix/debug-snapshot-start
[INFO] [stderr]  - [deleted]             (none)     -> na-stable-clique-backports
[INFO] [stderr]  - [deleted]             (none)     -> na-stable-secret-store-backport
[INFO] [stderr]  + 5277eb3ea...b67ae67cd HandleImportOfForks   -> HandleImportOfForks  (forced update)
[INFO] [stderr]  + b82b0adc1...e4fde5990 PreventBlocksReimport -> PreventBlocksReimport  (forced update)
[INFO] [stderr]  * [new branch]          demi-fix-c-api        -> demi-fix-c-api
[INFO] [stderr]    b1964c825..cff33ab30  dp/chore/add-bench-for-to_fat_rlps -> dp/chore/add-bench-for-to_fat_rlps
[INFO] [stderr]  * [new branch]          dp/chore/ensure-we-ignore-old-snapshots -> dp/chore/ensure-we-ignore-old-snapshots
[INFO] [stderr]  * [new branch]          dp/chore/put-snapshot-progress-behind-rwlock -> dp/chore/put-snapshot-progress-behind-rwlock
[INFO] [stderr]    81ca599f2..2c97bcc1a  master                -> master
[INFO] [stderr]  * [new branch]          na-bench-machine-call-builtin-contract -> na-bench-machine-call-builtin-contract
[INFO] [stderr]    2210e82cf..e8d8b0a4a  na-builtin-refactor   -> na-builtin-refactor
[INFO] [stderr]  * [new branch]          s1-config-mordor      -> s1-config-mordor
[INFO] [stderr]    4a95a09b3..078de7efc  seun-fix-instant-seal -> seun-fix-instant-seal
[INFO] [stderr]  * [new branch]          tbaut-hardcoded       -> tbaut-hardcoded
[INFO] [stderr]    4b295aafa..91dda02e4  v2.5.10-stable        -> v2.5.10-stable
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2c97bcc1a4f61415cc26a076fa1054b2be64de17
[ERROR] this task or one of its parent failed!
[ERROR] command `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.