[INFO] crate ross 0.1.7 is already in cache
[INFO] testing ross-0.1.7 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate ross 0.1.7 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ross 0.1.7 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ross 0.1.7
[INFO] finished tweaking crates.io crate ross 0.1.7
[INFO] tweaked toml for crates.io crate ross 0.1.7 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 6b97e3b92301525709ccf7fcf1fd0e39021c46878e5281e1ea9b30049e881ba1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6b97e3b92301525709ccf7fcf1fd0e39021c46878e5281e1ea9b30049e881ba1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling owning_ref v0.2.4
[INFO] [stderr]    Compiling smallvec v0.3.4
[INFO] [stderr]    Compiling statistical v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.3.8
[INFO] [stderr]    Compiling multiqueue v0.3.2
[INFO] [stderr]    Compiling ross v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/io/seq.rs:49:36
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn sanitize_id(id: &String) -> (String);
[INFO] [stderr]    |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/io/seq.rs:116:36
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stderr]     |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ross`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name friends_emma src/bin/friends_emma.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=7992bea36da54b22 -C extra-filename=-7992bea36da54b22 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-efd928e7ebdb8ec1.rlib --extern multiqueue=/opt/rustwide/target/debug/deps/libmultiqueue-c1fb673c01224507.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-9cc9e44aa3d9199f.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-633ba68a0731f93e.rlib --extern ross=/opt/rustwide/target/debug/deps/libross-5431d0b638d1cbaf.rlib --extern statistical=/opt/rustwide/target/debug/deps/libstatistical-4a3ee1e911c3abd9.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6b97e3b92301525709ccf7fcf1fd0e39021c46878e5281e1ea9b30049e881ba1"`
[INFO] running `"docker" "rm" "-f" "6b97e3b92301525709ccf7fcf1fd0e39021c46878e5281e1ea9b30049e881ba1"`
[INFO] [stdout] 6b97e3b92301525709ccf7fcf1fd0e39021c46878e5281e1ea9b30049e881ba1