[INFO] fetching crate sc-basic-authorship 0.8.0...
[INFO] testing sc-basic-authorship-0.8.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sc-basic-authorship 0.8.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate sc-basic-authorship 0.8.0 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 sc-basic-authorship 0.8.0
[INFO] finished tweaking crates.io crate sc-basic-authorship 0.8.0
[INFO] tweaked toml for crates.io crate sc-basic-authorship 0.8.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8ced166aa448c2504e1ae5565cacd38782d97b819726dd9036111f5197bfddc
[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" "b8ced166aa448c2504e1ae5565cacd38782d97b819726dd9036111f5197bfddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8ced166aa448c2504e1ae5565cacd38782d97b819726dd9036111f5197bfddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ced166aa448c2504e1ae5565cacd38782d97b819726dd9036111f5197bfddc", kill_on_drop: false }`
[INFO] [stdout] b8ced166aa448c2504e1ae5565cacd38782d97b819726dd9036111f5197bfddc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f109c52b16a762bb51ff0e4bcbb28e50ac033350c0dea7900d38b3745da5692e
[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" "f109c52b16a762bb51ff0e4bcbb28e50ac033350c0dea7900d38b3745da5692e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling sp-std v2.0.0
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling parity-util-mem v0.7.0
[INFO] [stderr]    Compiling parity-wasm v0.41.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling hash-db v0.15.2
[INFO] [stderr]    Compiling memory_units v0.3.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling environmental v1.1.2
[INFO] [stderr]    Compiling base58 v0.1.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling hex-literal v0.3.1
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling trie-root v0.16.0
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling sp-panic-handler v2.0.0
[INFO] [stderr]    Compiling uint v0.8.5
[INFO] [stderr]    Compiling hash256-std-hasher v0.15.2
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling blake2s_simd v0.5.11
[INFO] [stderr]    Compiling fixed-hash v0.6.1
[INFO] [stderr]    Compiling twox-hash v1.6.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling trie-db v0.22.1
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling multihash v0.11.4
[INFO] [stderr]    Compiling wasmi-validation v0.3.0
[INFO] [stderr]    Compiling const-random v0.1.13
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling ahash v0.2.19
[INFO] [stderr]    Compiling wasmi v0.6.2
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.6
[INFO] [stderr]    Compiling async-std v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling webpki-roots v0.18.0
[INFO] [stderr]    Compiling lru v0.4.3
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling sp-debug-derive v2.0.0
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr] error: could not compile `async-std`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name async_std --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.8.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-channel"' --cfg 'feature="async-global-executor"' --cfg 'feature="async-io"' --cfg 'feature="async-mutex"' --cfg 'feature="async-process"' --cfg 'feature="blocking"' --cfg 'feature="crossbeam-utils"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-core"' --cfg 'feature="futures-io"' --cfg 'feature="futures-lite"' --cfg 'feature="gloo-timers"' --cfg 'feature="kv-log-macro"' --cfg 'feature="log"' --cfg 'feature="memchr"' --cfg 'feature="num_cpus"' --cfg 'feature="once_cell"' --cfg 'feature="pin-project-lite"' --cfg 'feature="pin-utils"' --cfg 'feature="slab"' --cfg 'feature="std"' --cfg 'feature="unstable"' --cfg 'feature="wasm-bindgen-futures"' -C metadata=0c85dd1bf829e876 -C extra-filename=-0c85dd1bf829e876 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_channel=/opt/rustwide/target/debug/deps/libasync_channel-971ca122233d3ce1.rmeta --extern async_global_executor=/opt/rustwide/target/debug/deps/libasync_global_executor-feeace1b98f2b58f.rmeta --extern async_io=/opt/rustwide/target/debug/deps/libasync_io-0b8fad41544d6283.rmeta --extern async_mutex=/opt/rustwide/target/debug/deps/libasync_mutex-ad6195bfa15f12bd.rmeta --extern async_process=/opt/rustwide/target/debug/deps/libasync_process-016adcc261ed3990.rmeta --extern blocking=/opt/rustwide/target/debug/deps/libblocking-ea221685701c5c72.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-a00feec9ee9478ed.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-406a8465294e37b8.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-5b673059ed707f3e.rmeta --extern futures_lite=/opt/rustwide/target/debug/deps/libfutures_lite-6f222a00ac05bd3f.rmeta --extern kv_log_macro=/opt/rustwide/target/debug/deps/libkv_log_macro-a9ddcf206ea66d2d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-574ec1b45a6b839c.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e03602aba27a22bc.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-a8b7d78b177fad72.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-63785135a125f57d.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-129ad8673e437837.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-1b5011892cb37eb5.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-65742487a18009d6.rmeta --cap-lints allow --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" "f109c52b16a762bb51ff0e4bcbb28e50ac033350c0dea7900d38b3745da5692e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f109c52b16a762bb51ff0e4bcbb28e50ac033350c0dea7900d38b3745da5692e", kill_on_drop: false }`
[INFO] [stdout] f109c52b16a762bb51ff0e4bcbb28e50ac033350c0dea7900d38b3745da5692e