[INFO] updating cached repository https://github.com/lespea/null_finder
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8d8757ebe82ee4351bfa3d8302a2dd1407c8571a
[INFO] checking lespea/null_finder against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flespea%2Fnull_finder" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lespea/null_finder on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lespea/null_finder
[INFO] finished tweaking git repo https://github.com/lespea/null_finder
[INFO] tweaked toml for git repo https://github.com/lespea/null_finder written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lespea/null_finder already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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] 7ee87e9960f26ec4f376c9618dc54c9bdb52456ad7e5c2d36086e7486f5751f7
[INFO] running `"docker" "start" "-a" "7ee87e9960f26ec4f376c9618dc54c9bdb52456ad7e5c2d36086e7486f5751f7"`
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]    Compiling bzip2-sys v0.1.4
[INFO] [stderr]     Checking clap v2.17.1
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking msdos_time v0.1.4
[INFO] [stderr]     Checking thread_local v0.2.7
[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 aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking bzip2 v0.3.0
[INFO] [stderr]     Checking zip v0.2.0
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7ee87e9960f26ec4f376c9618dc54c9bdb52456ad7e5c2d36086e7486f5751f7"`
[INFO] running `"docker" "rm" "-f" "7ee87e9960f26ec4f376c9618dc54c9bdb52456ad7e5c2d36086e7486f5751f7"`
[INFO] [stdout] 7ee87e9960f26ec4f376c9618dc54c9bdb52456ad7e5c2d36086e7486f5751f7
