[INFO] fetching crate expr-parent 0.1.0...
[INFO] checking expr-parent-0.1.0 against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] extracting crate expr-parent 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate expr-parent 0.1.0
[INFO] finished tweaking crates.io crate expr-parent 0.1.0
[INFO] tweaked toml for crates.io crate expr-parent 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate expr-parent 0.1.0 on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: cyclic package dependency: package `expr-child v0.1.1` depends on itself. Cycle:
[INFO] [stderr] package `expr-child v0.1.1`
[INFO] [stderr]     ... which satisfies dependency `expr-child = "^0.1.0"` of package `expr-parent v0.1.0`
[INFO] [stderr]     ... which satisfies dependency `expr-parent = "0.1.*"` of package `expr-child v0.1.1`


command failed: exit status: 101

    Updating crates.io index
error: cyclic package dependency: package `expr-child v0.1.1` depends on itself. Cycle:
package `expr-child v0.1.1`
    ... which satisfies dependency `expr-child = "^0.1.0"` of package `expr-parent v0.1.0`
    ... which satisfies dependency `expr-parent = "0.1.*"` of package `expr-child v0.1.1`