[INFO] cloning repository https://github.com/tilpner/sersve
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tilpner/sersve" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftilpner%2Fsersve", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftilpner%2Fsersve'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 189fd95b722f4ea914b34ada8df4d8b9bfc91237
[INFO] documenting tilpner/sersve against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftilpner%2Fsersve" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tilpner/sersve on toolchain ef324565d071c6d7e2477a195648549e33d6a465
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tilpner/sersve
[INFO] finished tweaking git repo https://github.com/tilpner/sersve
[INFO] tweaked toml for git repo https://github.com/tilpner/sersve written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tilpner/sersve 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" "+ef324565d071c6d7e2477a195648549e33d6a465" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.2.2
[INFO] [stderr]   Downloaded lazy_static v0.1.14
[INFO] [stderr]   Downloaded num_cpus v0.2.6
[INFO] [stderr]   Downloaded log v0.3.2
[INFO] [stderr]   Downloaded mustache v0.6.2
[INFO] [stderr]   Downloaded serde_codegen v0.5.3
[INFO] [stderr]   Downloaded hpack v0.2.0
[INFO] [stderr]   Downloaded hyper v0.6.14
[INFO] [stderr]   Downloaded memchr v0.1.6
[INFO] [stderr]   Downloaded docopt_macros v0.6.72
[INFO] [stderr]   Downloaded cookie v0.1.21
[INFO] [stderr]   Downloaded mime v0.1.0
[INFO] [stderr]   Downloaded httparse v0.1.6
[INFO] [stderr]   Downloaded bitflags v0.3.2
[INFO] [stderr]   Downloaded openssl v0.6.5
[INFO] [stderr]   Downloaded regex v0.1.41
[INFO] [stderr]   Downloaded rustc-serialize v0.3.16
[INFO] [stderr]   Downloaded quasi_macros v0.3.2
[INFO] [stderr]   Downloaded winapi v0.2.4
[INFO] [stderr]   Downloaded rand v0.3.11
[INFO] [stderr]   Downloaded solicit v0.4.4
[INFO] [stderr]   Downloaded kernel32-sys v0.1.4
[INFO] [stderr]   Downloaded serde_macros v0.5.3
[INFO] [stderr]   Downloaded libc v0.1.10
[INFO] [stderr]   Downloaded serde_json v0.6.0
[INFO] [stderr]   Downloaded serde v0.6.0
[INFO] [stderr]   Downloaded num v0.1.27
[INFO] [stderr]   Downloaded aster v0.4.7
[INFO] [stderr]   Downloaded time v0.1.32
[INFO] [stderr]   Downloaded url v0.2.37
[INFO] [stderr]   Downloaded gcc v0.3.16
[INFO] [stderr]   Downloaded libressl-pnacl-sys v2.1.6
[INFO] [stderr]   Downloaded iron v0.2.2
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/iron-0.2.2/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.2*` for dependency `plugin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '*'
[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.