[INFO] cloning repository https://github.com/scottschroeder/caesar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scottschroeder/caesar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Fcaesar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Fcaesar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ca51a1018356e1ee51a3ca48744d2a70621ee1a2
[INFO] checking scottschroeder/caesar against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Fcaesar" "/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/scottschroeder/caesar 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/scottschroeder/caesar
[INFO] finished tweaking git repo https://github.com/scottschroeder/caesar
[INFO] tweaked toml for git repo https://github.com/scottschroeder/caesar written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/scottschroeder/caesar 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] [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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12cdd7702f398576b4271fad5b1552b59115bc5d8074096431414afb86219053
[INFO] running `Command { std: "docker" "start" "-a" "12cdd7702f398576b4271fad5b1552b59115bc5d8074096431414afb86219053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12cdd7702f398576b4271fad5b1552b59115bc5d8074096431414afb86219053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12cdd7702f398576b4271fad5b1552b59115bc5d8074096431414afb86219053", kill_on_drop: false }`
[INFO] [stdout] 12cdd7702f398576b4271fad5b1552b59115bc5d8074096431414afb86219053
[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" "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] 83001f05ca7d78697dff524530095cdcbb13cfe764dc6c2c61fb01a677cd0373
[INFO] running `Command { std: "docker" "start" "-a" "83001f05ca7d78697dff524530095cdcbb13cfe764dc6c2c61fb01a677cd0373", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.14
[INFO] [stderr]     Checking regex-syntax v0.3.4
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking ansi_term v0.8.0
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking strsim v0.4.1
[INFO] [stderr]     Checking itertools v0.4.16
[INFO] [stderr]     Checking custom_derive v0.1.5
[INFO] [stderr]    Compiling rustc_version v0.1.7
[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] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking term_size v0.1.0
[INFO] [stderr]     Checking thread_local v0.2.6
[INFO] [stderr]     Checking clap v2.10.0
[INFO] [stderr]     Checking aho-corasick v0.5.2
[INFO] [stderr]     Checking regex v0.1.73
[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" "83001f05ca7d78697dff524530095cdcbb13cfe764dc6c2c61fb01a677cd0373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83001f05ca7d78697dff524530095cdcbb13cfe764dc6c2c61fb01a677cd0373", kill_on_drop: false }`
[INFO] [stdout] 83001f05ca7d78697dff524530095cdcbb13cfe764dc6c2c61fb01a677cd0373