[INFO] fetching crate soph-metrics 0.30.0...
[INFO] checking soph-metrics-0.30.0 against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] extracting crate soph-metrics 0.30.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate soph-metrics 0.30.0
[INFO] finished tweaking crates.io crate soph-metrics 0.30.0
[INFO] tweaked toml for crates.io crate soph-metrics 0.30.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate soph-metrics 0.30.0 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] crate crates.io crate soph-metrics 0.30.0 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `soph-core = "^0.30.0"` (locked to 0.30.0)
[INFO] [stderr] candidate versions found which didn't match: 0.28.0, 0.27.1, 0.27.0, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `soph-metrics v0.30.0 (/workspace/builds/worker-2-tc1/source)`


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
error: failed to select a version for the requirement `soph-core = "^0.30.0"` (locked to 0.30.0)
candidate versions found which didn't match: 0.28.0, 0.27.1, 0.27.0, ...
location searched: crates.io index
required by package `soph-metrics v0.30.0 (/workspace/builds/worker-2-tc1/source)`