[INFO] fetching crate libp2p 0.56.0...
[INFO] checking libp2p-0.56.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate libp2p 0.56.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate libp2p 0.56.0
[INFO] finished tweaking crates.io crate libp2p 0.56.0
[INFO] tweaked toml for crates.io crate libp2p 0.56.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libp2p 0.56.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libp2p 0.56.0 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 64a4384c99456430143189e9df6e149b748e0fe792fe8174f8a67205f4f868f4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 614e4d8515c626842937701c20b39a5ac060ba8b163cf83b73ed546d54b00794
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[INFO] [stdout] warning: unused imports: `muxing::StreamMuxerBox` and `transport::dummy::DummyTransport`
[INFO] [stdout]   --> src/builder.rs:77:23
[INFO] [stdout]    |
[INFO] [stdout] 77 |     use libp2p_core::{muxing::StreamMuxerBox, transport::dummy::DummyTransport};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p_identity::PeerId`
[INFO] [stdout]   --> src/builder.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use libp2p_identity::PeerId;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p_swarm::NetworkBehaviour`
[INFO] [stdout]   --> src/builder.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use libp2p_swarm::NetworkBehaviour;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::SwarmBuilder`
[INFO] [stdout]   --> src/builder.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use crate::SwarmBuilder;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoSecurityUpgrade` is never used
[INFO] [stdout]   --> src/builder/phase.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait IntoSecurityUpgrade<C> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoMultiplexerUpgrade` is never used
[INFO] [stdout]   --> src/builder/phase.rs:81:11
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub trait IntoMultiplexerUpgrade<C> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectMuxerUpgrade` is never constructed
[INFO] [stdout]   --> src/builder/select_muxer.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct SelectMuxerUpgrade<A, B>(A, B);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/builder/select_muxer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<A, B> SelectMuxerUpgrade<A, B> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 37 |     pub fn new(a: A, b: B) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectSecurityUpgrade` is never constructed
[INFO] [stdout]   --> src/builder/select_security.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct SelectSecurityUpgrade<A, B>(A, B);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/builder/select_security.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<A, B> SelectSecurityUpgrade<A, B> {
[INFO] [stdout]    | -------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn new(a: A, b: B) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoSecurityUpgrade` is never used
[INFO] [stdout]   --> src/builder/phase.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait IntoSecurityUpgrade<C> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoMultiplexerUpgrade` is never used
[INFO] [stdout]   --> src/builder/phase.rs:81:11
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub trait IntoMultiplexerUpgrade<C> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectMuxerUpgrade` is never constructed
[INFO] [stdout]   --> src/builder/select_muxer.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct SelectMuxerUpgrade<A, B>(A, B);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/builder/select_muxer.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<A, B> SelectMuxerUpgrade<A, B> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 37 |     pub fn new(a: A, b: B) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectSecurityUpgrade` is never constructed
[INFO] [stdout]   --> src/builder/select_security.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct SelectSecurityUpgrade<A, B>(A, B);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/builder/select_security.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<A, B> SelectSecurityUpgrade<A, B> {
[INFO] [stdout]    | -------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn new(a: A, b: B) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 47.09s
[INFO] running `Command { std: "docker" "inspect" "614e4d8515c626842937701c20b39a5ac060ba8b163cf83b73ed546d54b00794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "614e4d8515c626842937701c20b39a5ac060ba8b163cf83b73ed546d54b00794", kill_on_drop: false }`
[INFO] [stdout] 614e4d8515c626842937701c20b39a5ac060ba8b163cf83b73ed546d54b00794