[INFO] cloning repository https://github.com/jrreed83/rust_comm
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrreed83/rust_comm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrreed83%2Frust_comm"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrreed83%2Frust_comm'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca511e7787ec5d7576cb869342a3fef06cf434ce
[INFO] checking jrreed83/rust_comm against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrreed83%2Frust_comm" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrreed83/rust_comm on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jrreed83/rust_comm
[INFO] finished tweaking git repo https://github.com/jrreed83/rust_comm
[INFO] tweaked toml for git repo https://github.com/jrreed83/rust_comm written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jrreed83/rust_comm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0e74eee0ae097d7de5728c1d048ffe583396b01d09303e2045490a8c0e088380
[INFO] running `"docker" "start" "-a" "0e74eee0ae097d7de5728c1d048ffe583396b01d09303e2045490a8c0e088380"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stderr]     |
[INFO] [stderr] 147 | ...                   &f_name: &str,
[INFO] [stderr]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stderr] 
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0642`.
[INFO] [stderr] error: could not compile `rustc-serialize`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0e74eee0ae097d7de5728c1d048ffe583396b01d09303e2045490a8c0e088380"`
[INFO] running `"docker" "rm" "-f" "0e74eee0ae097d7de5728c1d048ffe583396b01d09303e2045490a8c0e088380"`
[INFO] [stdout] 0e74eee0ae097d7de5728c1d048ffe583396b01d09303e2045490a8c0e088380