[INFO] fetching crate yarws 0.3.0...
[INFO] testing yarws-0.3.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate yarws 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate yarws 0.3.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-6/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" "+1.47.0" "fetch" "--locked" "--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-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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55a4db19e4d13807a4f700dbbe981d84c159f5444e8c57ee4b14df4f8581b150
[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" "55a4db19e4d13807a4f700dbbe981d84c159f5444e8c57ee4b14df4f8581b150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55a4db19e4d13807a4f700dbbe981d84c159f5444e8c57ee4b14df4f8581b150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55a4db19e4d13807a4f700dbbe981d84c159f5444e8c57ee4b14df4f8581b150", kill_on_drop: false }`
[INFO] [stdout] 55a4db19e4d13807a4f700dbbe981d84c159f5444e8c57ee4b14df4f8581b150
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 813e962bf4a0e6bdce1518b13bbfafab7173a9fc2cd4f5910c4314509332d05f
[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" "813e962bf4a0e6bdce1518b13bbfafab7173a9fc2cd4f5910c4314509332d05f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.14
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling arc-swap v0.4.5
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling base64 v0.12.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling slog-scope v4.3.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling slog-async v2.5.0
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling slog-stdlog v4.0.0
[INFO] [stderr]    Compiling hex-literal v0.2.1
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling slog-term v2.5.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling futures-executor v0.3.4
[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 -C embed-bitcode=no -C debuginfo=2 -C metadata=2944edd421ed3abc -C extra-filename=-2944edd421ed3abc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-0b174a129f062638.rlib --extern colored=/opt/rustwide/target/debug/deps/libcolored-f7d5fbc92a05b4ae.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-df2638283b6e46bf.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-9276de6112e1cf35.rlib --extern hex_literal=/opt/rustwide/target/debug/deps/libhex_literal-365d4aa245e8a31a.rlib --extern inflate=/opt/rustwide/target/debug/deps/libinflate-c943e0c0f1c04058.rlib --extern miniz_oxide=/opt/rustwide/target/debug/deps/libminiz_oxide-2ae7c3d8e019a886.rlib --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-218f8718a427445e.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-90a4ee2d5c57d1b7.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-8786125efe9531b3.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-b46b84007a1f3e16.rlib --extern sha1=/opt/rustwide/target/debug/deps/libsha1-ea9fa15eadc3d3ae.rlib --extern slog=/opt/rustwide/target/debug/deps/libslog-d1fc9294fc825fed.rlib --extern slog_async=/opt/rustwide/target/debug/deps/libslog_async-b092bb6f8193dbc3.rlib --extern slog_stdlog=/opt/rustwide/target/debug/deps/libslog_stdlog-a2cb79144e5ed2f0.rlib --extern slog_term=/opt/rustwide/target/debug/deps/libslog_term-1ffc55ae6cb11c7e.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-078d24963f74b08f.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-49dc092fbc1d5d8e.rlib --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-fd7012cd63dc3f4e.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-3fc83b3e98482ad7.rlib --extern yarws=/opt/rustwide/target/debug/deps/libyarws-8d38a2d8ac672df0.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-d7eaed8ce89f6116/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" "813e962bf4a0e6bdce1518b13bbfafab7173a9fc2cd4f5910c4314509332d05f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813e962bf4a0e6bdce1518b13bbfafab7173a9fc2cd4f5910c4314509332d05f", kill_on_drop: false }`
[INFO] [stdout] 813e962bf4a0e6bdce1518b13bbfafab7173a9fc2cd4f5910c4314509332d05f
