[INFO] fetching crate obws 0.2.0...
[INFO] testing obws-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate obws 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate obws 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate obws 0.2.0
[INFO] finished tweaking crates.io crate obws 0.2.0
[INFO] tweaked toml for crates.io crate obws 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate obws 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e262872fb8b7567975b05145a33adacba55126b0bddbd687f54ae0f3375dcdd1
[INFO] running `Command { std: "docker" "start" "-a" "e262872fb8b7567975b05145a33adacba55126b0bddbd687f54ae0f3375dcdd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e262872fb8b7567975b05145a33adacba55126b0bddbd687f54ae0f3375dcdd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e262872fb8b7567975b05145a33adacba55126b0bddbd687f54ae0f3375dcdd1", kill_on_drop: false }`
[INFO] [stdout] e262872fb8b7567975b05145a33adacba55126b0bddbd687f54ae0f3375dcdd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b440931c15d9cfe51d97f1b3da88988be0743702b1f5f20b8d794009e2a4063c
[INFO] running `Command { std: "docker" "start" "-a" "b440931c15d9cfe51d97f1b3da88988be0743702b1f5f20b8d794009e2a4063c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling rgb v0.8.25
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling tokio v0.3.6
[INFO] [stderr]    Compiling input_buffer v0.3.1
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling semver-parser v0.10.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha-1 v0.9.2
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling tungstenite v0.11.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling serde_with_macros v1.3.0
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling tokio-tungstenite v0.12.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_with v1.6.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling obws v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `Command { std: "docker" "inspect" "b440931c15d9cfe51d97f1b3da88988be0743702b1f5f20b8d794009e2a4063c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b440931c15d9cfe51d97f1b3da88988be0743702b1f5f20b8d794009e2a4063c", kill_on_drop: false }`
[INFO] [stdout] b440931c15d9cfe51d97f1b3da88988be0743702b1f5f20b8d794009e2a4063c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a7d1422d07f6c214916e455dfb2e39cf9c21c667d8267378da07700b3f3da63
[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" "6a7d1422d07f6c214916e455dfb2e39cf9c21c667d8267378da07700b3f3da63", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling obws v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `obws`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name events --edition=2018 examples/events.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=fc981395dfe9cb63 -C extra-filename=-fc981395dfe9cb63 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-eaf9fa7ff5cf3f23.rlib --extern async_stream=/opt/rustwide/target/debug/deps/libasync_stream-e9a450d17f4a2400.rlib --extern base64=/opt/rustwide/target/debug/deps/libbase64-bea50dc4f970736a.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-de31228f2c0549ed.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-ee4c27e9644b175a.rlib --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-e68e5e7f14b6db79.rlib --extern either=/opt/rustwide/target/debug/deps/libeither-970226e5e7d9c309.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-fc04f5bc147ef731.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-e85f58044ae91ffe.rlib --extern obws=/opt/rustwide/target/debug/deps/libobws-98c0e869904ee57a.rlib --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-da777a0c1fac42e5.rlib --extern rgb=/opt/rustwide/target/debug/deps/librgb-917a8a8c0317e5e3.rlib --extern semver=/opt/rustwide/target/debug/deps/libsemver-53fc3473e28757e5.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-7f4afced269111de.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-d77effae9624545a.rlib --extern serde_with=/opt/rustwide/target/debug/deps/libserde_with-2cd8b9d28824375b.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-9488c5e759f3566a.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-db867a11779eb58d.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-169cf053b6631c68.rlib --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-f58880bed204b02f.rlib --extern tungstenite=/opt/rustwide/target/debug/deps/libtungstenite-6c7a7d4dca31a7b0.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 `Command { std: "docker" "inspect" "6a7d1422d07f6c214916e455dfb2e39cf9c21c667d8267378da07700b3f3da63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a7d1422d07f6c214916e455dfb2e39cf9c21c667d8267378da07700b3f3da63", kill_on_drop: false }`
[INFO] [stdout] 6a7d1422d07f6c214916e455dfb2e39cf9c21c667d8267378da07700b3f3da63