[INFO] fetching crate sc-offchain 2.0.0-alpha.6...
[INFO] testing sc-offchain-2.0.0-alpha.6 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate sc-offchain 2.0.0-alpha.6 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate sc-offchain 2.0.0-alpha.6 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sc-offchain 2.0.0-alpha.6
[INFO] finished tweaking crates.io crate sc-offchain 2.0.0-alpha.6
[INFO] tweaked toml for crates.io crate sc-offchain 2.0.0-alpha.6 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82184bd27a5c9a64725a5be60b2a927fd1af9a2c511395ecb7df0da0ae04678b
[INFO] running `"docker" "start" "-a" "82184bd27a5c9a64725a5be60b2a927fd1af9a2c511395ecb7df0da0ae04678b"`
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling subtle v2.2.2
[INFO] [stderr]    Compiling parity-util-mem v0.6.1
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling try-lock v0.2.2
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling chacha20-poly1305-aead v0.1.2
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling linked_hash_set v0.1.3
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling dns-parser v0.8.0
[INFO] [stderr]    Compiling snow v0.6.2
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tokio v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling slog_derive v0.2.0
[INFO] [stderr]    Compiling ct-logs v0.6.0
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling pin-project v0.4.9
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling rustls-native-certs v0.3.0
[INFO] [stderr]    Compiling curve25519-dalek v2.0.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling uint v0.8.2
[INFO] [stderr]    Compiling hash256-std-hasher v0.15.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling js-sys v0.3.37
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling blake2s_simd v0.5.10
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]    Compiling schnorrkel v0.9.1
[INFO] [stderr]    Compiling x25519-dalek v0.6.0
[INFO] [stderr]    Compiling tracing v0.1.13
[INFO] [stderr]    Compiling substrate-bip39 v0.4.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-rustls v0.13.0
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling broadcaster v1.0.0
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling async-std v1.5.0
[INFO] [stderr]    Compiling libp2p-core v0.18.0
[INFO] [stderr]    Compiling libp2p-noise v0.18.0
[INFO] [stderr]    Compiling libp2p-kad v0.18.0
[INFO] [stderr]    Compiling libp2p-identify v0.18.0
[INFO] [stderr]    Compiling sc-network v0.8.0-alpha.6
[INFO] [stderr]    Compiling futures_codec v0.3.4
[INFO] [stderr]    Compiling rw-stream-sink v0.2.1
[INFO] [stderr]    Compiling wasm-timer v0.2.4
[INFO] [stderr]    Compiling async-tls v0.7.0
[INFO] [stderr]    Compiling yamux v0.4.5
[INFO] [stderr]    Compiling soketto v0.3.2
[INFO] [stderr]    Compiling sp-utils v2.0.0-alpha.6
[INFO] [stderr]    Compiling unsigned-varint v0.3.3
[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,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="hmac"' --cfg 'feature="hmac-drbg"' --cfg 'feature="sha2"' --cfg 'feature="std"' --cfg 'feature="typenum"' -C metadata=66734d2d9be05c6b -C extra-filename=-66734d2d9be05c6b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern arrayref=/opt/rustwide/target/debug/deps/libarrayref-71407e6fdc8282a0.rmeta --extern crunchy=/opt/rustwide/target/debug/deps/libcrunchy-e97ea2ff7016d26c.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-474e4ec5380050db.rmeta --extern hmac_drbg=/opt/rustwide/target/debug/deps/libhmac_drbg-825497395e2e10cd.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-35f3fd6b129f1368.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-7c225e7118c0c0b0.rmeta --extern subtle=/opt/rustwide/target/debug/deps/libsubtle-66ab4efb27ee9938.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-f3ded0b1bdfad787.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 `"docker" "inspect" "82184bd27a5c9a64725a5be60b2a927fd1af9a2c511395ecb7df0da0ae04678b"`
[INFO] running `"docker" "rm" "-f" "82184bd27a5c9a64725a5be60b2a927fd1af9a2c511395ecb7df0da0ae04678b"`
[INFO] [stdout] 82184bd27a5c9a64725a5be60b2a927fd1af9a2c511395ecb7df0da0ae04678b