[INFO] updating cached repository https://github.com/paritytech/substrate
[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/substrate
[INFO] [stderr]  - [deleted]             (none)     -> andre/fix-client-import-subscription-cleanup
[INFO] [stderr]  - [deleted]             (none)     -> andre/gossip-global-leak
[INFO] [stderr]  - [deleted]             (none)     -> ashley-ws-transport
[INFO] [stderr]  - [deleted]             (none)     -> bkchr-fix-master-again
[INFO] [stderr]  - [deleted]             (none)     -> cecton-cumulus-branch
[INFO] [stderr]  - [deleted]             (none)     -> gui-impl-fee-tip-distinctly
[INFO] [stderr]  - [deleted]             (none)     -> kiz-offchain-phragmen-4-slashing
[INFO] [stderr]  - [deleted]             (none)     -> md-benchmark-vesting
[INFO] [stderr]  - [deleted]             (none)     -> robin-split-ext-set-storage
[INFO] [stderr]  - [deleted]             (none)     -> seun-remove-client-sc-network
[INFO] [stderr]    d72223ee5..139aaf369  ashley-browser-testing      -> ashley-browser-testing
[INFO] [stderr]  * [new branch]          at-ext-terminate            -> at-ext-terminate
[INFO] [stderr]  + 95ab015c1...8a8993384 at-ext-transfer             -> at-ext-transfer  (forced update)
[INFO] [stderr]  * [new branch]          ben-update-deps             -> ben-update-deps
[INFO] [stderr]  * [new branch]          bernhard/async-offchain-workers -> bernhard/async-offchain-workers
[INFO] [stderr]  * [new branch]          bernhard/deterministic-bookkeeping-issue-3722 -> bernhard/deterministic-bookkeeping-issue-3722
[INFO] [stderr]  * [new branch]          bkchr-store-last-runtime-upgrade-version -> bkchr-store-last-runtime-upgrade-version
[INFO] [stderr]  + 214b6d4a9...791116786 cecton-disable-default-announce -> cecton-disable-default-announce  (forced update)
[INFO] [stderr]  * [new branch]          cecton-the-revenge-of-the-cli -> cecton-the-revenge-of-the-cli
[INFO] [stderr]    0ca650f79..948be8701  checked                     -> checked
[INFO] [stderr]    6c0232b9a..a439a7aa5  cumulus-branch              -> cumulus-branch
[INFO] [stderr]  * [new branch]          gav-refactor-hashing        -> gav-refactor-hashing
[INFO] [stderr]    fbe5b4e98..490fe91bf  gav-regression              -> gav-regression
[INFO] [stderr]  * [new branch]          gui-key-info-iteration      -> gui-key-info-iteration
[INFO] [stderr]  + 1e078766e...458fb7730 gui-time-doc                -> gui-time-doc  (forced update)
[INFO] [stderr]  + 664fb4c15...c945c6429 igor-ocw-async              -> igor-ocw-async  (forced update)
[INFO] [stderr]  * [new branch]          joseph-harberger            -> joseph-harberger
[INFO] [stderr]  * [new branch]          kiz-extern-crate            -> kiz-extern-crate
[INFO] [stderr]    1667f6e95..537d6eeba  kiz-offchain-phragmen-4     -> kiz-offchain-phragmen-4
[INFO] [stderr]    e6cc799a3..34a6d7963  master                      -> master
[INFO] [stderr]  * [new branch]          md-benchmark-democracy      -> md-benchmark-democracy
[INFO] [stderr]  * [new branch]          md-benchmarks-default-chain -> md-benchmarks-default-chain
[INFO] [stderr]  * [new branch]          mp-release-tag-tracking     -> mp-release-tag-tracking
[INFO] [stderr]  + d3ffcc7bf...9d3c47299 nv-bench-base               -> nv-bench-base  (forced update)
[INFO] [stderr]    10f735693..9eea98bf0  nv-dynamic-extensions       -> nv-dynamic-extensions
[INFO] [stderr]  * [new branch]          nv-txpool-poll              -> nv-txpool-poll
[INFO] [stderr]  + 9fbdb7c12...f5c6ebf96 polkadot-master             -> polkadot-master  (forced update)
[INFO] [stderr]    a8c5b28fe..d9f689ddc  ser-grand-central-dispatch  -> ser-grand-central-dispatch
[INFO] [stderr]    7ead6e07f..09398e5d3  seun-instant-seal-service   -> seun-instant-seal-service
[INFO] [stderr]  * [new branch]          seun-merge-sc-cli-and-subkey -> seun-merge-sc-cli-and-subkey
[INFO] [stderr]    73b899b38..386cfcfda  seun-sc-cli-subkey          -> seun-sc-cli-subkey
[INFO] [stderr]    f6d569369..8016be2da  shawntabrizi-fix-storage-names -> shawntabrizi-fix-storage-names
[INFO] [stderr]    a93dc2e3f..cb3de79a0  sp-epoch3                   -> sp-epoch3
[INFO] [stderr]    0e8f75989..ac431d630  sp-habe                     -> sp-habe
[INFO] [stderr]    eb2875486..6e14b44a9  td-offchain-signing         -> td-offchain-signing
[INFO] [stderr]    e7f80540e..1a4fe0925  td-signed-unsigned          -> td-signed-unsigned
[INFO] [stderr]  * [new tag]             polkadot-0.7.15             -> polkadot-0.7.15
[INFO] [stderr]  * [new tag]             polkadot-0.7.16             -> polkadot-0.7.16
[INFO] [stderr]  * [new tag]             release                     -> release
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34a6d7963ad43e05a016c2020ba3f71d593b69b2
[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.