[INFO] crate yarws 0.3.0 is already in cache
[INFO] testing yarws-0.3.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate yarws 0.3.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate yarws 0.3.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yarws 0.3.0
[INFO] finished tweaking crates.io crate yarws 0.3.0
[INFO] tweaked toml for crates.io crate yarws 0.3.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate yarws 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d44dc21a7f84cf20a2803386670c0b36cbcc320cca21dca42b38ad850065bce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9d44dc21a7f84cf20a2803386670c0b36cbcc320cca21dca42b38ad850065bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d44dc21a7f84cf20a2803386670c0b36cbcc320cca21dca42b38ad850065bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d44dc21a7f84cf20a2803386670c0b36cbcc320cca21dca42b38ad850065bce", kill_on_drop: false }`
[INFO] [stdout] 9d44dc21a7f84cf20a2803386670c0b36cbcc320cca21dca42b38ad850065bce
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fb61e9b44d04e2f84e497a25d62da9e7c64bde623c4e7a1e7ce4c4d836bbd7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5fb61e9b44d04e2f84e497a25d62da9e7c64bde623c4e7a1e7ce4c4d836bbd7d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling base64 v0.12.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling hex-literal v0.2.1
[INFO] [stderr]    Compiling slog-scope v4.3.0
[INFO] [stderr]    Compiling slog-async v2.5.0
[INFO] [stderr]    Compiling slog-stdlog v4.0.0
[INFO] [stderr]    Compiling slog-term v2.5.0
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling serde_json v1.0.52
[INFO] [stderr]    Compiling yarws v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `yarws`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name chat_server --edition=2018 src/bin/chat_server.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=b33c4fcbfea2f7f1 -C extra-filename=-b33c4fcbfea2f7f1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-b4a1ca29f2d7ea34.rlib --extern colored=/opt/rustwide/target/debug/deps/libcolored-6890ca10c2e904a3.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-a373e31c8a8e9eb5.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-d7f652203d0378da.rlib --extern hex_literal=/opt/rustwide/target/debug/deps/libhex_literal-12bc601690364bca.rlib --extern inflate=/opt/rustwide/target/debug/deps/libinflate-b643dcee80b1d6e3.rlib --extern miniz_oxide=/opt/rustwide/target/debug/deps/libminiz_oxide-7c585cee9d5d2542.rlib --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-94930f4c27fccdba.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-6e9da37c4b6d4427.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-ca087c7f8d0bd4ac.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-af640809b4d2faaf.rlib --extern sha1=/opt/rustwide/target/debug/deps/libsha1-e70e5c6bac3108c5.rlib --extern slog=/opt/rustwide/target/debug/deps/libslog-bfd970be319a1e91.rlib --extern slog_async=/opt/rustwide/target/debug/deps/libslog_async-9912f03a9c0370a2.rlib --extern slog_stdlog=/opt/rustwide/target/debug/deps/libslog_stdlog-b91f99ffe179313f.rlib --extern slog_term=/opt/rustwide/target/debug/deps/libslog_term-e693c9e3266f5929.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-43143503a45f5a8b.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-067cc825ec7dc14e.rlib --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-bf5405b76b04c8e1.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-18200ede712078c3.rlib --extern yarws=/opt/rustwide/target/debug/deps/libyarws-dcae1f54573d07db.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-0fa9f1e1ff9d38d6/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5fb61e9b44d04e2f84e497a25d62da9e7c64bde623c4e7a1e7ce4c4d836bbd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fb61e9b44d04e2f84e497a25d62da9e7c64bde623c4e7a1e7ce4c4d836bbd7d", kill_on_drop: false }`
[INFO] [stdout] 5fb61e9b44d04e2f84e497a25d62da9e7c64bde623c4e7a1e7ce4c4d836bbd7d