[INFO] updating cached repository https://github.com/paritytech/substrate
[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/paritytech/substrate
[INFO] [stderr]  - [deleted]             (none)     -> andre/grandpa-race-fixes
[INFO] [stderr]  - [deleted]             (none)     -> back_to_finalize_with_ancestors
[INFO] [stderr]  - [deleted]             (none)     -> bkchr-state-machine-cleanup
[INFO] [stderr]  - [deleted]             (none)     -> bkchr-wasm-executor-cleanup
[INFO] [stderr]  - [deleted]             (none)     -> cmichi-various-improvements
[INFO] [stderr]  - [deleted]             (none)     -> continue_separatin_fetcher_with_light_backend
[INFO] [stderr]  - [deleted]             (none)     -> do_not_panic_when_checking_exec_proof
[INFO] [stderr]  - [deleted]             (none)     -> kiz-move-phragmen-benches
[INFO] [stderr]  - [deleted]             (none)     -> marcio/fix-subkey-should-verify-with-pubkey
[INFO] [stderr]  - [deleted]             (none)     -> rh-babe-epochs-runtime-only
[INFO] [stderr]  - [deleted]             (none)     -> ser-contracts-rpc-call
[INFO] [stderr]  - [deleted]             (none)     -> td-dont-initialize-block-for-offchain
[INFO] [stderr]  * [new branch]          a-sync-fork-choice          -> a-sync-fork-choice
[INFO] [stderr]  * [new branch]          a-trace-storage             -> a-trace-storage
[INFO] [stderr]    4898d10a1..1cbd4c9e7  blockchain_cache_never_prune -> blockchain_cache_never_prune
[INFO] [stderr]    0c893c17b..c2e3ed150  demi/upgrade-compatible-deps -> demi/upgrade-compatible-deps
[INFO] [stderr]  * [new branch]          fix_rpc_subscriptions_on_light_client -> fix_rpc_subscriptions_on_light_client
[INFO] [stderr]  * [new branch]          gav-investigate_npos        -> gav-investigate_npos
[INFO] [stderr]  + 5b5836a9d...849e5ab73 gui-encodelike-storage2     -> gui-encodelike-storage2  (forced update)
[INFO] [stderr]    6d5dc745d..21bad0ff4  joshy-template-instantiable -> joshy-template-instantiable
[INFO] [stderr]    6debacb01..8f7f58991  kiz-phragmen-election       -> kiz-phragmen-election
[INFO] [stderr]    14fe8ac16..c8bea2797  kiz-srml-fixed              -> kiz-srml-fixed
[INFO] [stderr]    ab638c1bb..6a2ff2d85  marcio/polkadot-master      -> marcio/polkadot-master
[INFO] [stderr]  * [new branch]          marcio/polkadot-master-parent-cache-test -> marcio/polkadot-master-parent-cache-test
[INFO] [stderr]    9b08e7ff9..6d48cce29  master                      -> master
[INFO] [stderr]  * [new branch]          multikey_remote_read        -> multikey_remote_read
[INFO] [stderr]    3ba0f2a2d..6c8963114  polkadot-master             -> polkadot-master
[INFO] [stderr]    f3a74eff3..c768a7e4c  polkadot-testing            -> polkadot-testing
[INFO] [stderr]  * [new branch]          rh-fix-babe-epochs          -> rh-fix-babe-epochs
[INFO] [stderr]  * [new branch]          rh-fix-babe-epochs-srml     -> rh-fix-babe-epochs-srml
[INFO] [stderr]  * [new branch]          rh-fix-epochs-core          -> rh-fix-epochs-core
[INFO] [stderr]  * [new branch]          sp-pow-aux                  -> sp-pow-aux
[INFO] [stderr]  * [new branch]          td-logging                  -> td-logging
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6d48cce29aa7bcb8c11070a400179f1188a7f620
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed