[INFO] fetching crate libp2p 0.29.1...
[INFO] checking libp2p-0.29.1 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate libp2p 0.29.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate libp2p 0.29.1 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p 0.29.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate libp2p 0.29.1
[INFO] tweaked toml for crates.io crate libp2p 0.29.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate libp2p 0.29.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", 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] 38b79cafa93a1d1d981a3f9d73da7712bab69a6a1822f08d69cf6f7c5cc8a078
[INFO] running `Command { std: "docker" "start" "-a" "38b79cafa93a1d1d981a3f9d73da7712bab69a6a1822f08d69cf6f7c5cc8a078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38b79cafa93a1d1d981a3f9d73da7712bab69a6a1822f08d69cf6f7c5cc8a078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38b79cafa93a1d1d981a3f9d73da7712bab69a6a1822f08d69cf6f7c5cc8a078", kill_on_drop: false }`
[INFO] [stdout] 38b79cafa93a1d1d981a3f9d73da7712bab69a6a1822f08d69cf6f7c5cc8a078
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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] b5bd1f4dd0c435ac479d584e108d6970fdf47b419be5ad3f96efe34df8a13e50
[INFO] running `Command { std: "docker" "start" "-a" "b5bd1f4dd0c435ac479d584e108d6970fdf47b419be5ad3f96efe34df8a13e50", kill_on_drop: false }`
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[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling libp2p-core-derive v0.20.2
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[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.62
[INFO] [stderr]     Checking asn1_der v0.6.3
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[INFO] [stderr]    Compiling prost v0.6.1
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[INFO] [stderr]    Compiling prost-types v0.6.1
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[INFO] [stderr]    Compiling libp2p-core v0.23.1
[INFO] [stderr]    Compiling libp2p-kad v0.24.0
[INFO] [stderr]    Compiling libp2p-noise v0.25.0
[INFO] [stderr]    Compiling libp2p-plaintext v0.23.0
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[INFO] [stderr]    Compiling libp2p-floodsub v0.23.0
[INFO] [stderr]     Checking futures-executor v0.3.6
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[INFO] [stderr]     Checking libp2p-pnet v0.19.2
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]     Checking multihash v0.11.4
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[INFO] [stderr]     Checking libp2p-swarm v0.23.0
[INFO] [stderr]     Checking libp2p-dns v0.23.0
[INFO] [stderr]     Checking libp2p-websocket v0.24.0
[INFO] [stderr]     Checking libp2p-wasm-ext v0.23.0
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[INFO] [stderr]     Checking libp2p-request-response v0.4.0
[INFO] [stderr]     Checking libp2p v0.29.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 50s
[INFO] running `Command { std: "docker" "inspect" "b5bd1f4dd0c435ac479d584e108d6970fdf47b419be5ad3f96efe34df8a13e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5bd1f4dd0c435ac479d584e108d6970fdf47b419be5ad3f96efe34df8a13e50", kill_on_drop: false }`
[INFO] [stdout] b5bd1f4dd0c435ac479d584e108d6970fdf47b419be5ad3f96efe34df8a13e50