[INFO] cloning repository https://github.com/Joezeo/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Joezeo/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoezeo%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoezeo%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b26ebf35c131003a12ceb944c3beea84d3615c9
[INFO] checking Joezeo/rust-learning against master#3645249d79dfb136b5d8de3ce153d19d6698d92d for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoezeo%2Frust-learning" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Joezeo/rust-learning
[INFO] finished tweaking git repo https://github.com/Joezeo/rust-learning
[INFO] tweaked toml for git repo https://github.com/Joezeo/rust-learning written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Joezeo/rust-learning on toolchain 3645249d79dfb136b5d8de3ce153d19d6698d92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3645249d79dfb136b5d8de3ce153d19d6698d92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Joezeo/rust-learning 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" "+3645249d79dfb136b5d8de3ce153d19d6698d92d" "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]   |
[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] error: failed to parse lock file at: /workspace/builds/worker-4-tc1/source/Cargo.lock
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   TOML parse error at line 10, column 9
[INFO] [stderr]      |
[INFO] [stderr]   10 | <<<<<<< HEAD
[INFO] [stderr]      |         ^
[INFO] [stderr]   key with no value, expected `=`


overridden task result to prepare-fail:unknown

Caused by:
    the crate has a broken lockfile: 
    
    warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
      |
      = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
      = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
      = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
    error: failed to parse lock file at: /workspace/builds/worker-4-tc1/source/Cargo.lock
    
    Caused by:
      TOML parse error at line 10, column 9
         |
      10 | <<<<<<< HEAD
         |         ^
      key with no value, expected `=`