[INFO] cloning repository https://github.com/tokyorust/trm6-ch2-identifier-madness
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tokyorust/trm6-ch2-identifier-madness" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftokyorust%2Ftrm6-ch2-identifier-madness", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftokyorust%2Ftrm6-ch2-identifier-madness'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3f9077ca586f3b33d8736d0e64f6cb25e969687
[INFO] documenting tokyorust/trm6-ch2-identifier-madness against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftokyorust%2Ftrm6-ch2-identifier-madness" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tokyorust/trm6-ch2-identifier-madness on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tokyorust/trm6-ch2-identifier-madness
[INFO] finished tweaking git repo https://github.com/tokyorust/trm6-ch2-identifier-madness
[INFO] tweaked toml for git repo https://github.com/tokyorust/trm6-ch2-identifier-madness written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/tokyorust/trm6-ch2-identifier-madness already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc577d6f7903cc6fb61202edd4dcc084f5afbcdd9fc7602105a9f380b991be2b
[INFO] running `Command { std: "docker" "start" "-a" "dc577d6f7903cc6fb61202edd4dcc084f5afbcdd9fc7602105a9f380b991be2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc577d6f7903cc6fb61202edd4dcc084f5afbcdd9fc7602105a9f380b991be2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc577d6f7903cc6fb61202edd4dcc084f5afbcdd9fc7602105a9f380b991be2b", kill_on_drop: false }`
[INFO] [stdout] dc577d6f7903cc6fb61202edd4dcc084f5afbcdd9fc7602105a9f380b991be2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db464e0512eac1b61d5cfbd4bbe336fe9bb83c4a4f50a15f409613c3eac0e621
[INFO] running `Command { std: "docker" "start" "-a" "db464e0512eac1b61d5cfbd4bbe336fe9bb83c4a4f50a15f409613c3eac0e621", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v1.2.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling regex-syntax v0.3.3
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling quine-mc_cluskey v0.2.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "db464e0512eac1b61d5cfbd4bbe336fe9bb83c4a4f50a15f409613c3eac0e621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db464e0512eac1b61d5cfbd4bbe336fe9bb83c4a4f50a15f409613c3eac0e621", kill_on_drop: false }`
[INFO] [stdout] db464e0512eac1b61d5cfbd4bbe336fe9bb83c4a4f50a15f409613c3eac0e621