[INFO] fetching crate exocore-chain 0.1.1...
[INFO] testing exocore-chain-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate exocore-chain 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate exocore-chain 0.1.1 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 exocore-chain 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate exocore-chain 0.1.1
[INFO] tweaked toml for crates.io crate exocore-chain 0.1.1 written to /workspace/builds/worker-9/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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8229cd4d270dc70b9b8efa7829bf523e8ca08ebd62ee823240810bdebec14c62
[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" "8229cd4d270dc70b9b8efa7829bf523e8ca08ebd62ee823240810bdebec14c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8229cd4d270dc70b9b8efa7829bf523e8ca08ebd62ee823240810bdebec14c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8229cd4d270dc70b9b8efa7829bf523e8ca08ebd62ee823240810bdebec14c62", kill_on_drop: false }`
[INFO] [stdout] 8229cd4d270dc70b9b8efa7829bf523e8ca08ebd62ee823240810bdebec14c62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 3e56e454dfa8a35433f254ffd16375e0cc6df9965694e29044b5e7286f6750ba
[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" "3e56e454dfa8a35433f254ffd16375e0cc6df9965694e29044b5e7286f6750ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling futures-io v0.3.8
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[INFO] [stderr]    Compiling signature v1.2.2
[INFO] [stderr]    Compiling bs58 v0.4.0
[INFO] [stderr]    Compiling data-encoding v2.3.1
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling capnp v0.14.0
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling tokio v0.3.6
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling itertools v0.8.2
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[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling quicksink v0.1.2
[INFO] [stderr]    Compiling ed25519 v1.0.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling if-addrs v0.6.5
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling memmap v0.7.0
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling clap v2.33.3
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[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling block-cipher v0.8.0
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling ordered-float v2.0.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling prost-build v0.6.1
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[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling asn1_der_derive v0.1.2
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling libp2p-core-derive v0.21.0
[INFO] [stderr]    Compiling derivative v2.1.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling sha2 v0.9.2
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[INFO] [stderr]    Compiling sha-1 v0.9.2
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling capnpc v0.14.2
[INFO] [stderr]    Compiling stream-cipher v0.7.1
[INFO] [stderr]    Compiling aes-soft v0.5.0
[INFO] [stderr]    Compiling blake2 v0.9.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling polyval v0.4.5
[INFO] [stderr]    Compiling poly1305 v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling hmac-drbg v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling aes v0.5.0
[INFO] [stderr]    Compiling log v0.4.11
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[INFO] [stderr]    Compiling serde_json v1.0.61
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[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling asn1_der v0.6.3
[INFO] [stderr]    Compiling ghash v0.3.1
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling aes-gcm v0.7.0
[INFO] [stderr]    Compiling multihash-derive v0.7.1
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]    Compiling cargo_metadata v0.10.0
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling petname v1.0.13
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling snow v0.7.2
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling chacha20 v0.5.0
[INFO] [stderr]    Compiling log4rs v1.0.0
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling chacha20poly1305 v0.6.0
[INFO] [stderr]    Compiling webpki-roots v0.21.0
[INFO] [stderr]    Compiling rustls v0.19.0
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling skeptic v0.13.5
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling x25519-dalek v1.1.0
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling extsort v0.3.0
[INFO] [stderr]    Compiling extindex v0.3.0
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling futures_codec v0.4.1
[INFO] [stderr]    Compiling rw-stream-sink v0.2.1
[INFO] [stderr]    Compiling yamux v0.8.0
[INFO] [stderr]    Compiling soketto v0.4.2
[INFO] [stderr]    Compiling wasm-timer v0.2.5
[INFO] [stderr]    Compiling unsigned-varint v0.5.1
[INFO] [stderr]    Compiling multihash v0.13.2
[INFO] [stderr]    Compiling multistream-select v0.9.1
[INFO] [stderr]    Compiling parity-multiaddr v0.10.0
[INFO] [stderr]    Compiling async-tls v0.11.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-compat-02 v0.1.2
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling libp2p-core v0.26.0
[INFO] [stderr]    Compiling libp2p-noise v0.28.0
[INFO] [stderr]    Compiling exocore-core v0.1.1
[INFO] [stderr]    Compiling libp2p-swarm v0.26.0
[INFO] [stderr]    Compiling libp2p-mplex v0.26.0
[INFO] [stderr]    Compiling libp2p-yamux v0.29.0
[INFO] [stderr]    Compiling libp2p-dns v0.26.0
[INFO] [stderr]    Compiling libp2p-websocket v0.27.0
[INFO] [stderr]    Compiling libp2p-tcp v0.26.0
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling libp2p v0.33.0
[INFO] [stdout] error[E0277]: the trait bound `StdRng: rand_core::RngCore` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/exocore-core-0.1.1/src/sec/keys.rs:181:47
[INFO] [stdout]     |
[INFO] [stdout] 181 |         petname::Petnames::default().generate(&mut rng, 3, "-")
[INFO] [stdout]     |                                               ^^^^^^^^ the trait `rand_core::RngCore` is not implemented for `StdRng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `rand::rng::Rng` for `StdRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exocore-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3e56e454dfa8a35433f254ffd16375e0cc6df9965694e29044b5e7286f6750ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e56e454dfa8a35433f254ffd16375e0cc6df9965694e29044b5e7286f6750ba", kill_on_drop: false }`
[INFO] [stdout] 3e56e454dfa8a35433f254ffd16375e0cc6df9965694e29044b5e7286f6750ba