[INFO] fetching crate tc-rpc 2.0.0...
[INFO] checking tc-rpc-2.0.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate tc-rpc 2.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tc-rpc 2.0.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tc-rpc 2.0.0
[INFO] finished tweaking crates.io crate tc-rpc 2.0.0
[INFO] tweaked toml for crates.io crate tc-rpc 2.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b269b4972f039d6ca51f96b5cfd9e2a4596e4ec5edd64e84c531c12577faa7d1
[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" "b269b4972f039d6ca51f96b5cfd9e2a4596e4ec5edd64e84c531c12577faa7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b269b4972f039d6ca51f96b5cfd9e2a4596e4ec5edd64e84c531c12577faa7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b269b4972f039d6ca51f96b5cfd9e2a4596e4ec5edd64e84c531c12577faa7d1", kill_on_drop: false }`
[INFO] [stdout] b269b4972f039d6ca51f96b5cfd9e2a4596e4ec5edd64e84c531c12577faa7d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 3401defbc2d08d7755f3448f7873d1cf0dfb997072f2e5b3a7ecb0e200e3313a
[INFO] running `Command { std: "docker" "start" "-a" "3401defbc2d08d7755f3448f7873d1cf0dfb997072f2e5b3a7ecb0e200e3313a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling prost-derive v0.7.0
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[INFO] [stderr]    Compiling failure_derive v0.1.8
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[INFO] [stderr]     Checking rand v0.8.3
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[INFO] [stderr]     Checking tokio-current-thread v0.1.7
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[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.73
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[INFO] [stderr]     Checking libsecp256k1 v0.3.5
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[INFO] [stderr]     Checking chacha20poly1305 v0.6.0
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[INFO] [stderr]     Checking sct v0.6.1
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[INFO] [stderr]     Checking tetsy-fixed-hash v0.7.0
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[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
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[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]     Checking unsigned-varint v0.6.0
[INFO] [stderr]     Checking futures v0.3.14
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[INFO] [stderr]     Checking async-process v1.1.0
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[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]     Checking tokio-uds v0.2.7
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[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]     Checking serializer v2.0.2
[INFO] [stderr]     Checking tetsy-jsonrpc-core v15.1.0
[INFO] [stderr]     Checking tp-chain-spec v2.0.2
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking tetsy-multistream-select v0.10.2
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[INFO] [stderr]     Checking futures-diagnose v1.0.1
[INFO] [stderr]     Checking tetcore-bip39 v0.4.2
[INFO] [stderr]     Checking twasmi v0.6.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking tetsy-jsonrpc-pubsub v15.1.0
[INFO] [stderr]     Checking futures-rustls v0.21.1
[INFO] [stderr]     Checking tetsy-jsonrpc-client-transports v15.1.0
[INFO] [stderr]    Compiling tetsy-scale-codec-derive v2.0.1
[INFO] [stderr]    Compiling tp-runtime-interface-proc-macro v2.0.2
[INFO] [stderr]    Compiling multihash-derive v0.7.1
[INFO] [stderr]    Compiling tp-api-proc-macro v2.0.2
[INFO] [stderr]    Compiling tc-tracing-proc-macro v2.0.0
[INFO] [stderr]    Compiling tetsy-jsonrpc-derive v15.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.73
[INFO] [stderr]     Checking tetsy-jsonrpc-core-client v15.1.0
[INFO] [stderr] error: could not compile `libsecp256k1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name secp256k1 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libsecp256k1-0.3.5/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="default"' --cfg 'feature="hmac"' --cfg 'feature="hmac-drbg"' --cfg 'feature="sha2"' --cfg 'feature="std"' --cfg 'feature="typenum"' -C metadata=f482cbe326f565e0 -C extra-filename=-f482cbe326f565e0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern arrayref=/opt/rustwide/target/debug/deps/libarrayref-3bf866771b9d68ca.rmeta --extern crunchy=/opt/rustwide/target/debug/deps/libcrunchy-14fc8a65e1587094.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-b117e1548c96e11d.rmeta --extern hmac_drbg=/opt/rustwide/target/debug/deps/libhmac_drbg-2f716f76e4718f70.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-83a4ae999662a41d.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-b7a1a0db09e635af.rmeta --extern subtle=/opt/rustwide/target/debug/deps/libsubtle-3e30d39fd74592ae.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-a3b710b7a61f7674.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" "3401defbc2d08d7755f3448f7873d1cf0dfb997072f2e5b3a7ecb0e200e3313a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3401defbc2d08d7755f3448f7873d1cf0dfb997072f2e5b3a7ecb0e200e3313a", kill_on_drop: false }`
[INFO] [stdout] 3401defbc2d08d7755f3448f7873d1cf0dfb997072f2e5b3a7ecb0e200e3313a