[INFO] fetching crate macro_types 0.5.2...
[INFO] checking macro_types-0.5.2 against master#d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee for pr-127481-2
[INFO] extracting crate macro_types 0.5.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate macro_types 0.5.2 on toolchain d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate macro_types 0.5.2
[INFO] finished tweaking crates.io crate macro_types 0.5.2
[INFO] tweaked toml for crates.io crate macro_types 0.5.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: cyclic package dependency: package `macro_types_helpers v0.3.0` depends on itself. Cycle:
[INFO] [stderr] package `macro_types_helpers v0.3.0`
[INFO] [stderr]     ... which satisfies dependency `macro_types_helpers = "^0.3.0"` of package `macro_types v0.5.2`
[INFO] [stderr]     ... which satisfies dependency `macro_types = "^0.5.0"` of package `macro_types_helpers v0.3.0`
[INFO] [stderr]     ... which satisfies dependency `macro_types_helpers = "^0.3.0"` of package `macro_types v0.5.2 (/workspace/builds/worker-7-tc1/source)`
[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.