[INFO] cloning repository https://github.com/kittenbox-isa/kibble
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kittenbox-isa/kibble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkittenbox-isa%2Fkibble", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkittenbox-isa%2Fkibble'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cc6c0e8405f246fc8e5a63e14e10710d7d32cb8
[INFO] checking kittenbox-isa/kibble against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkittenbox-isa%2Fkibble" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kittenbox-isa/kibble on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kittenbox-isa/kibble
[INFO] finished tweaking git repo https://github.com/kittenbox-isa/kibble
[INFO] tweaked toml for git repo https://github.com/kittenbox-isa/kibble written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kittenbox-isa/kibble already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: cyclic package dependency: package `backend v0.0.0 (/workspace/builds/worker-7-tc1/source/backend)` depends on itself. Cycle:
[INFO] [stderr] package `backend v0.0.0 (/workspace/builds/worker-7-tc1/source/backend)`
[INFO] [stderr]     ... which satisfies path dependency `backend` (locked to 0.0.0) of package `repr v0.0.0 (/workspace/builds/worker-7-tc1/source/repr)`
[INFO] [stderr]     ... which satisfies path dependency `repr` (locked to 0.0.0) of package `backend v0.0.0 (/workspace/builds/worker-7-tc1/source/backend)`
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
