[INFO] cloning repository https://github.com/dawehner/mfind
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dawehner/mfind" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawehner%2Fmfind", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawehner%2Fmfind'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcfc840209e4b82b7b8d6bd830000a67bf1a827c
[INFO] checking dawehner/mfind against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawehner%2Fmfind" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dawehner/mfind on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dawehner/mfind
[INFO] finished tweaking git repo https://github.com/dawehner/mfind
[INFO] tweaked toml for git repo https://github.com/dawehner/mfind written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dawehner/mfind already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ee8b23e34d38539d4c70a958095c2d0b8534f7603b3728910f91564b92d908f
[INFO] running `Command { std: "docker" "start" "-a" "0ee8b23e34d38539d4c70a958095c2d0b8534f7603b3728910f91564b92d908f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ee8b23e34d38539d4c70a958095c2d0b8534f7603b3728910f91564b92d908f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee8b23e34d38539d4c70a958095c2d0b8534f7603b3728910f91564b92d908f", kill_on_drop: false }`
[INFO] [stdout] 0ee8b23e34d38539d4c70a958095c2d0b8534f7603b3728910f91564b92d908f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72466479d9117cc744ba9de937fd462166800b1e22f5900f06f0102ece47a9b9
[INFO] running `Command { std: "docker" "start" "-a" "72466479d9117cc744ba9de937fd462166800b1e22f5900f06f0102ece47a9b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.7
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]     Checking regex-syntax v0.2.5
[INFO] [stderr]     Checking rustc-serialize v0.3.18
[INFO] [stderr]     Checking strsim v0.3.0
[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-0.3.18/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]     Checking memchr v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.5.1
[INFO] [stderr]     Checking walkdir v0.1.5
[INFO] [stderr]     Checking regex v0.1.55
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "72466479d9117cc744ba9de937fd462166800b1e22f5900f06f0102ece47a9b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72466479d9117cc744ba9de937fd462166800b1e22f5900f06f0102ece47a9b9", kill_on_drop: false }`
[INFO] [stdout] 72466479d9117cc744ba9de937fd462166800b1e22f5900f06f0102ece47a9b9