[INFO] cloning repository https://github.com/mhedgpeth/PersistentCounter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mhedgpeth/PersistentCounter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhedgpeth%2FPersistentCounter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhedgpeth%2FPersistentCounter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c5ff4ee24c617de62658c4e6cc676355dcb27de
[INFO] checking mhedgpeth/PersistentCounter against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhedgpeth%2FPersistentCounter" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mhedgpeth/PersistentCounter on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mhedgpeth/PersistentCounter
[INFO] finished tweaking git repo https://github.com/mhedgpeth/PersistentCounter
[INFO] tweaked toml for git repo https://github.com/mhedgpeth/PersistentCounter written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mhedgpeth/PersistentCounter 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "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 `serde-generate = "^0.26.0"` (locked to 0.26.0)
[INFO] [stderr] candidate versions found which didn't match: 0.11.0, 0.10.0, 0.9.0, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `crux_core v0.10.0`
[INFO] [stderr]     ... which satisfies dependency `crux_core = "^0.10"` (locked to 0.10.0) of package `shared v0.1.0 (/workspace/builds/worker-2-tc1/source/shared)`


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 `serde-generate = "^0.26.0"` (locked to 0.26.0)
candidate versions found which didn't match: 0.11.0, 0.10.0, 0.9.0, ...
location searched: crates.io index
required by package `crux_core v0.10.0`
    ... which satisfies dependency `crux_core = "^0.10"` (locked to 0.10.0) of package `shared v0.1.0 (/workspace/builds/worker-2-tc1/source/shared)`