[INFO] cloning repository https://github.com/thekp89/P2P-rust-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thekp89/P2P-rust-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekp89%2FP2P-rust-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekp89%2FP2P-rust-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d43cf4b7cd495439644c45b730b5cf28a6e691c6
[INFO] checking thekp89/P2P-rust-chat against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekp89%2FP2P-rust-chat" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thekp89/P2P-rust-chat
[INFO] finished tweaking git repo https://github.com/thekp89/P2P-rust-chat
[INFO] tweaked toml for git repo https://github.com/thekp89/P2P-rust-chat written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thekp89/P2P-rust-chat on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thekp89/P2P-rust-chat 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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_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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d244ab8df9c90de7a55e5a6532ecd7996584743fc3e4e52b7fd90c140dc46c2
[INFO] running `Command { std: "docker" "start" "-a" "9d244ab8df9c90de7a55e5a6532ecd7996584743fc3e4e52b7fd90c140dc46c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d244ab8df9c90de7a55e5a6532ecd7996584743fc3e4e52b7fd90c140dc46c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d244ab8df9c90de7a55e5a6532ecd7996584743fc3e4e52b7fd90c140dc46c2", kill_on_drop: false }`
[INFO] [stdout] 9d244ab8df9c90de7a55e5a6532ecd7996584743fc3e4e52b7fd90c140dc46c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f20793838f547ed49da8d7f8dd63029bb1c37c095f1057dad677d03059170d53
[INFO] running `Command { std: "docker" "start" "-a" "f20793838f547ed49da8d7f8dd63029bb1c37c095f1057dad677d03059170d53", kill_on_drop: false }`
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[INFO] [stderr]     Checking icu_provider v2.0.0
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[INFO] [stderr]     Checking icu_properties v2.0.1
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[INFO] [stderr]     Checking libp2p-core v0.41.3
[INFO] [stderr]     Checking rtnetlink v0.13.1
[INFO] [stderr]     Checking if-watch v3.2.1
[INFO] [stderr]     Checking libp2p-swarm v0.44.2
[INFO] [stderr]     Checking libp2p-noise v0.44.0
[INFO] [stderr]     Checking libp2p-yamux v0.45.2
[INFO] [stderr]     Checking libp2p-tcp v0.41.0
[INFO] [stderr]     Checking libp2p-identify v0.44.2
[INFO] [stderr]     Checking libp2p-connection-limits v0.3.1
[INFO] [stderr]     Checking libp2p-mdns v0.45.1
[INFO] [stderr]     Checking libp2p-gossipsub v0.46.1
[INFO] [stderr]     Checking libp2p-allow-block-list v0.3.0
[INFO] [stderr]     Checking libp2p v0.53.2
[INFO] [stderr]     Checking p2p-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Frame`
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Frame, Terminal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Frame`
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Frame, Terminal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transport`
[INFO] [stdout]   --> src/lib.rs:17:43
[INFO] [stdout]    |
[INFO] [stdout] 17 |     tcp, yamux, Multiaddr, PeerId, Swarm, Transport, SwarmBuilder,
[INFO] [stdout]    |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Transport`
[INFO] [stdout]   --> src/lib.rs:17:43
[INFO] [stdout]    |
[INFO] [stdout] 17 |     tcp, yamux, Multiaddr, PeerId, Swarm, Transport, SwarmBuilder,
[INFO] [stdout]    |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, ChatBehaviour>>>
[INFO] [stdout]    --> src/lib.rs:114:25
[INFO] [stdout]     |
[INFO] [stdout] 114 |           let mut swarm = SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 115 | |             .with_tokio()
[INFO] [stdout] 116 | |             .with_tcp(tcp::Config::default(), noise::Config::new, yamux::Config::default)?
[INFO] [stdout] 117 | |             .with_behaviour(|_| behaviour)?
[INFO] [stdout]     | |___________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, ChatBehaviour>>, Infallible>
[INFO] [stdout]    --> src/lib.rs:114:25
[INFO] [stdout]     |
[INFO] [stdout] 114 |           let mut swarm = SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 115 | |             .with_tokio()
[INFO] [stdout] 116 | |             .with_tcp(tcp::Config::default(), noise::Config::new, yamux::Config::default)?
[INFO] [stdout] 117 | |             .with_behaviour(|_| behaviour)?
[INFO] [stdout]     | |__________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `p2p-chat` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, ChatBehaviour>>>
[INFO] [stdout]    --> src/lib.rs:114:25
[INFO] [stdout]     |
[INFO] [stdout] 114 |           let mut swarm = SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 115 | |             .with_tokio()
[INFO] [stdout] 116 | |             .with_tcp(tcp::Config::default(), noise::Config::new, yamux::Config::default)?
[INFO] [stdout] 117 | |             .with_behaviour(|_| behaviour)?
[INFO] [stdout]     | |___________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<SwarmBuilder<libp2p::builder::phase::provider::Tokio, libp2p::builder::phase::swarm::SwarmPhase<impl libp2p::builder::phase::AuthenticatedMultiplexedTransport, ChatBehaviour>>, Infallible>
[INFO] [stdout]    --> src/lib.rs:114:25
[INFO] [stdout]     |
[INFO] [stdout] 114 |           let mut swarm = SwarmBuilder::with_existing_identity(local_key.clone())
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 115 | |             .with_tokio()
[INFO] [stdout] 116 | |             .with_tcp(tcp::Config::default(), noise::Config::new, yamux::Config::default)?
[INFO] [stdout] 117 | |             .with_behaviour(|_| behaviour)?
[INFO] [stdout]     | |__________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `p2p-chat` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f20793838f547ed49da8d7f8dd63029bb1c37c095f1057dad677d03059170d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20793838f547ed49da8d7f8dd63029bb1c37c095f1057dad677d03059170d53", kill_on_drop: false }`
[INFO] [stdout] f20793838f547ed49da8d7f8dd63029bb1c37c095f1057dad677d03059170d53
