[INFO] fetching crate libp2p 0.54.1...
[INFO] checking libp2p-0.54.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate libp2p 0.54.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate libp2p 0.54.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p 0.54.1
[INFO] finished tweaking crates.io crate libp2p 0.54.1
[INFO] tweaked toml for crates.io crate libp2p 0.54.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 437 packages to latest compatible versions
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libp2p-identity v0.2.9
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[INFO] [stderr]   Downloaded multihash v0.19.1
[INFO] [stderr]   Downloaded libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]   Downloaded prometheus-client-derive-encode v0.4.2
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[INFO] [stderr]   Downloaded libp2p-swarm v0.45.1
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[INFO] [stderr]   Downloaded cuckoofilter v0.5.0
[INFO] [stderr]   Downloaded libp2p-mdns v0.46.0
[INFO] [stderr]   Downloaded libp2p-pnet v0.25.0
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[INFO] [stderr]   Downloaded libp2p-tls v0.5.0
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[INFO] [stderr]   Downloaded yamux v0.12.1
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[INFO] [stderr]   Downloaded libp2p-mplex v0.42.0
[INFO] [stderr]   Downloaded libp2p-ping v0.45.0
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[INFO] [stderr]   Downloaded netlink-sys v0.8.6
[INFO] [stderr]   Downloaded rtnetlink v0.10.1
[INFO] [stderr]   Downloaded libp2p-tcp v0.42.0
[INFO] [stderr]   Downloaded oid-registry v0.7.1
[INFO] [stderr]   Downloaded snow v0.9.6
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[INFO] [stderr]   Downloaded libp2p-core v0.42.0
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[INFO] [stderr]   Downloaded libsecp256k1-core v0.3.0
[INFO] [stderr]   Downloaded async-std-resolver v0.24.1
[INFO] [stderr]   Downloaded libp2p-dns v0.42.0
[INFO] [stderr]   Downloaded libp2p-floodsub v0.45.0
[INFO] [stderr]   Downloaded memory-stats v1.2.0
[INFO] [stderr]   Downloaded libp2p-dcutr v0.12.0
[INFO] [stderr]   Downloaded futures-ticker v0.0.3
[INFO] [stderr]   Downloaded libp2p-identify v0.45.0
[INFO] [stderr]   Downloaded libp2p-metrics v0.15.0
[INFO] [stderr]   Downloaded libp2p-quic v0.11.1
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[INFO] [stderr]   Downloaded libp2p-noise v0.45.0
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[INFO] [stderr]   Downloaded libp2p-upnp v0.3.0
[INFO] [stderr]   Downloaded libp2p-yamux v0.46.0
[INFO] [stderr]   Downloaded libp2p-plaintext v0.42.0
[INFO] [stderr]   Downloaded quick-protobuf-codec v0.3.1
[INFO] [stderr]   Downloaded futures-bounded v0.2.4
[INFO] [stderr]   Downloaded asn1-rs-impl v0.2.0
[INFO] [stderr]   Downloaded libp2p-uds v0.41.0
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[INFO] [stderr]   Downloaded libsecp256k1 v0.7.1
[INFO] [stderr]   Downloaded quick-protobuf v0.8.1
[INFO] [stderr]   Downloaded multiaddr v0.18.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c22d7d0d7d51e06e793592cbd5db8abbeca50a1f339d23c5f6dbaa4070584c8d
[INFO] running `Command { std: "docker" "start" "-a" "c22d7d0d7d51e06e793592cbd5db8abbeca50a1f339d23c5f6dbaa4070584c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c22d7d0d7d51e06e793592cbd5db8abbeca50a1f339d23c5f6dbaa4070584c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c22d7d0d7d51e06e793592cbd5db8abbeca50a1f339d23c5f6dbaa4070584c8d", kill_on_drop: false }`
[INFO] [stdout] c22d7d0d7d51e06e793592cbd5db8abbeca50a1f339d23c5f6dbaa4070584c8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd5b3a2ac44b6eb416abb71b8fa4a41cd88fe16f11e2cfe134174011e3631a9c
[INFO] running `Command { std: "docker" "start" "-a" "dd5b3a2ac44b6eb416abb71b8fa4a41cd88fe16f11e2cfe134174011e3631a9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.7
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[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking libp2p-tcp v0.42.0
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking libp2p-noise v0.45.0
[INFO] [stderr]     Checking libp2p-connection-limits v0.4.0
[INFO] [stderr]     Checking libp2p-allow-block-list v0.4.0
[INFO] [stderr]     Checking libp2p v0.54.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::SwarmBuilder`
[INFO] [stdout]   --> src/builder.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     use crate::SwarmBuilder;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `muxing::StreamMuxerBox` and `transport::dummy::DummyTransport`
[INFO] [stdout]   --> src/builder.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |     use libp2p_core::{muxing::StreamMuxerBox, transport::dummy::DummyTransport};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p_identity::PeerId`
[INFO] [stdout]   --> src/builder.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     use libp2p_identity::PeerId;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p_swarm::NetworkBehaviour`
[INFO] [stdout]   --> src/builder.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     use libp2p_swarm::NetworkBehaviour;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.81s
[INFO] running `Command { std: "docker" "inspect" "dd5b3a2ac44b6eb416abb71b8fa4a41cd88fe16f11e2cfe134174011e3631a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5b3a2ac44b6eb416abb71b8fa4a41cd88fe16f11e2cfe134174011e3631a9c", kill_on_drop: false }`
[INFO] [stdout] dd5b3a2ac44b6eb416abb71b8fa4a41cd88fe16f11e2cfe134174011e3631a9c