[INFO] fetching crate discv5 0.6.0...
[INFO] checking discv5-0.6.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate discv5 0.6.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate discv5 0.6.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate discv5 0.6.0
[INFO] finished tweaking crates.io crate discv5 0.6.0
[INFO] tweaked toml for crates.io crate discv5 0.6.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate discv5 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libp2p v0.53.2
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.14
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.12
[INFO] [stderr]   Downloaded cc v1.0.92
[INFO] [stderr]   Downloaded libp2p-allow-block-list v0.3.0
[INFO] [stderr]   Downloaded libp2p-connection-limits v0.3.1
[INFO] [stderr]   Downloaded asn1_der v0.7.6
[INFO] [stderr]   Downloaded libp2p-identity v0.2.8
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[INFO] [stderr]   Downloaded polyval v0.5.3
[INFO] [stderr]   Downloaded delay_map v0.3.0
[INFO] [stderr]   Downloaded libp2p-swarm v0.44.1
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[INFO] [stderr]   Downloaded aes-gcm v0.9.2
[INFO] [stderr]   Downloaded libp2p-core v0.41.2
[INFO] [stderr]   Downloaded ctr v0.7.0
[INFO] [stderr]   Downloaded universal-hash v0.4.0
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[INFO] [stderr]   Downloaded alloy-rlp v0.3.4
[INFO] [stderr]   Downloaded quickcheck v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b586f6084a44485689de3115b3caa26a3e60ad4d60e8a710f7588df013ddc8b2
[INFO] running `Command { std: "docker" "start" "-a" "b586f6084a44485689de3115b3caa26a3e60ad4d60e8a710f7588df013ddc8b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b586f6084a44485689de3115b3caa26a3e60ad4d60e8a710f7588df013ddc8b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b586f6084a44485689de3115b3caa26a3e60ad4d60e8a710f7588df013ddc8b2", kill_on_drop: false }`
[INFO] [stdout] b586f6084a44485689de3115b3caa26a3e60ad4d60e8a710f7588df013ddc8b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 394ed94cd73d7a3c77cb9b765e2dcaa91145b837405494c7b5dcf1b47ef6a7d2
[INFO] running `Command { std: "docker" "start" "-a" "394ed94cd73d7a3c77cb9b765e2dcaa91145b837405494c7b5dcf1b47ef6a7d2", kill_on_drop: false }`
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[INFO] [stderr]     Checking discv5 v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/socket/filter/cache.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct ReceivedPacket<T> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 26 |     /// The source that sent us the packet.
[INFO] [stdout] 27 |     pub content: T,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/socket/filter/cache.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct ReceivedPacket<T> {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 26 |     /// The source that sent us the packet.
[INFO] [stdout] 27 |     pub content: T,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.56s
[INFO] running `Command { std: "docker" "inspect" "394ed94cd73d7a3c77cb9b765e2dcaa91145b837405494c7b5dcf1b47ef6a7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394ed94cd73d7a3c77cb9b765e2dcaa91145b837405494c7b5dcf1b47ef6a7d2", kill_on_drop: false }`
[INFO] [stdout] 394ed94cd73d7a3c77cb9b765e2dcaa91145b837405494c7b5dcf1b47ef6a7d2