[INFO] fetching crate grpcio 0.7.0...
[INFO] checking grpcio-0.7.0 against beta for pr-78714
[INFO] extracting crate grpcio 0.7.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate grpcio 0.7.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grpcio 0.7.0
[INFO] finished tweaking crates.io crate grpcio 0.7.0
[INFO] tweaked toml for crates.io crate grpcio 0.7.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 7edcba53abe60429538733756425ab935d9ea0ea5c5e9f809ba8c7794dede9a1
[INFO] running `Command { std: "docker" "start" "-a" "7edcba53abe60429538733756425ab935d9ea0ea5c5e9f809ba8c7794dede9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7edcba53abe60429538733756425ab935d9ea0ea5c5e9f809ba8c7794dede9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7edcba53abe60429538733756425ab935d9ea0ea5c5e9f809ba8c7794dede9a1", kill_on_drop: false }`
[INFO] [stdout] 7edcba53abe60429538733756425ab935d9ea0ea5c5e9f809ba8c7794dede9a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 213c188f3992aff61d144d1a22f7e4972d2b5f0ba7826728efe1d5365b84c77f
[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" "213c188f3992aff61d144d1a22f7e4972d2b5f0ba7826728efe1d5365b84c77f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling boringssl-src v0.1.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling grpcio-sys v0.7.1
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="proc-macro-hack"' --cfg 'feature="proc-macro-nested"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=a0466140b2f24d29 -C extra-filename=-a0466140b2f24d29 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-117fcb57ff2489b0.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-94f07a3c7adc1237.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-a155502c92af957f.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-7e6f159eb6be5517.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-4e96489bbb390246.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-bc3ce219c54c89cd.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-459b76bc8eccd9f6.rmeta --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-796f7b1822517f88.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-3d51a938ac21e975.rmeta --extern proc_macro_hack=/opt/rustwide/target/debug/deps/libproc_macro_hack-0ebd250f5636e656.so --extern proc_macro_nested=/opt/rustwide/target/debug/deps/libproc_macro_nested-4e184443387fa366.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-e0e0e35ef9a5003f.rmeta --cap-lints allow --cap-lints=forbid` (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" "213c188f3992aff61d144d1a22f7e4972d2b5f0ba7826728efe1d5365b84c77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213c188f3992aff61d144d1a22f7e4972d2b5f0ba7826728efe1d5365b84c77f", kill_on_drop: false }`
[INFO] [stdout] 213c188f3992aff61d144d1a22f7e4972d2b5f0ba7826728efe1d5365b84c77f