[INFO] fetching crate holochain_core 0.0.50-alpha4...
[INFO] checking holochain_core-0.0.50-alpha4 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate holochain_core 0.0.50-alpha4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate holochain_core 0.0.50-alpha4 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate holochain_core 0.0.50-alpha4
[INFO] finished tweaking crates.io crate holochain_core 0.0.50-alpha4
[INFO] tweaked toml for crates.io crate holochain_core 0.0.50-alpha4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 178eafcae1ab645b6910b256429299200fb63a4fc39547a63f3fb1e202561458
[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" "178eafcae1ab645b6910b256429299200fb63a4fc39547a63f3fb1e202561458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "178eafcae1ab645b6910b256429299200fb63a4fc39547a63f3fb1e202561458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178eafcae1ab645b6910b256429299200fb63a4fc39547a63f3fb1e202561458", kill_on_drop: false }`
[INFO] [stdout] 178eafcae1ab645b6910b256429299200fb63a4fc39547a63f3fb1e202561458
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--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] 1f11edf0c5429f9dcd3760aec1bd8a33cdabbe5e96d22630f7fa9dff1fbc7db9
[INFO] running `Command { std: "docker" "start" "-a" "1f11edf0c5429f9dcd3760aec1bd8a33cdabbe5e96d22630f7fa9dff1fbc7db9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
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[INFO] [stderr]    Compiling syn v1.0.35
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[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.52.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking cranelift-bforest v0.52.0
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
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[INFO] [stderr]     Checking lock_api v0.1.5
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[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
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[INFO] [stderr]     Checking rand v0.4.6
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[INFO] [stderr]    Compiling wasmer-runtime-core v0.13.1
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[INFO] [stderr]    Compiling flate2 v1.0.16
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[INFO] [stderr]     Checking parking_lot_core v0.6.2
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[INFO] [stderr]     Checking futures-cpupool v0.1.8
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[INFO] [stderr]     Checking backtrace v0.3.27
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking wasmi v0.4.4
[INFO] [stderr]     Checking holochain_common v0.0.50-alpha4
[INFO] [stderr]     Checking nanoid v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling tar v0.4.29
[INFO] [stderr] error: could not compile `cranelift-codegen-meta`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cranelift_codegen_meta --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cranelift-codegen-meta-0.52.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=97f5405762ca8679 -C extra-filename=-97f5405762ca8679 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cranelift_codegen_shared=/opt/rustwide/target/debug/deps/libcranelift_codegen_shared-c015f7100f8bc6b9.rmeta --extern cranelift_entity=/opt/rustwide/target/debug/deps/libcranelift_entity-5362254cb4a8fd49.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" "1f11edf0c5429f9dcd3760aec1bd8a33cdabbe5e96d22630f7fa9dff1fbc7db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f11edf0c5429f9dcd3760aec1bd8a33cdabbe5e96d22630f7fa9dff1fbc7db9", kill_on_drop: false }`
[INFO] [stdout] 1f11edf0c5429f9dcd3760aec1bd8a33cdabbe5e96d22630f7fa9dff1fbc7db9