[INFO] updating cached repository https://github.com/linkerd/linkerd2-proxy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/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/linkerd/linkerd2-proxy
[INFO] [stderr]  - [deleted]         (none)     -> ver/the-oc
[INFO] [stderr]  * [new branch]      alex/byte-sized-bugs        -> alex/byte-sized-bugs
[INFO] [stderr]  * [new branch]      alex/high-maintenance       -> alex/high-maintenance
[INFO] [stderr]    6dd24bd..5f67033  eliza/tap-headers           -> eliza/tap-headers
[INFO] [stderr]  * [new branch]      eliza/update-tracing-subscriber -> eliza/update-tracing-subscriber
[INFO] [stderr]  * [new branch]      kleimkuhler/bump-tower-grpc -> kleimkuhler/bump-tower-grpc
[INFO] [stderr]    b15735b..dff01e7  master                      -> master
[INFO] [stderr]  * [new branch]      ver/listen-split-tls        -> ver/listen-split-tls
[INFO] [stderr]  * [new tag]         show                        -> show
[INFO] [stderr]  * [new tag]         linkerd2/edge-19.10.1       -> linkerd2/edge-19.10.1
[INFO] [stderr]  * [new tag]         linkerd2/edge-19.9.5        -> linkerd2/edge-19.9.5
[INFO] [stderr]  * [new tag]         release/v2.74.0             -> release/v2.74.0
[INFO] [stderr]  * [new tag]         release/v2.75.0             -> release/v2.75.0
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dff01e750cd124affb2f2853c8cca587d7a9442b
[ERROR] this task or one of its parent failed!
[ERROR] command `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.