[INFO] fetching crate melnet 0.2.27...
[INFO] checking melnet-0.2.27 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate melnet 0.2.27 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate melnet 0.2.27 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate melnet 0.2.27
[INFO] finished tweaking crates.io crate melnet 0.2.27
[INFO] tweaked toml for crates.io crate melnet 0.2.27 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate melnet 0.2.27 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 770a51703e6d15383b186e5f55f3a14a8693e5e29431d8e684ea6cdea3eb381c
[INFO] running `Command { std: "docker" "start" "-a" "770a51703e6d15383b186e5f55f3a14a8693e5e29431d8e684ea6cdea3eb381c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "770a51703e6d15383b186e5f55f3a14a8693e5e29431d8e684ea6cdea3eb381c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770a51703e6d15383b186e5f55f3a14a8693e5e29431d8e684ea6cdea3eb381c", kill_on_drop: false }`
[INFO] [stdout] 770a51703e6d15383b186e5f55f3a14a8693e5e29431d8e684ea6cdea3eb381c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c191b20499c1d52f81646e470c5d5343c686efde9263d576fb475835584888b1
[INFO] running `Command { std: "docker" "start" "-a" "c191b20499c1d52f81646e470c5d5343c686efde9263d576fb475835584888b1", kill_on_drop: false }`
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[INFO] [stderr]     Checking melnet v0.2.27 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/bin/mngossip.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | async fn spam_neighbors(nstate: &NetState, req: GossipMsg) -> anyhow::Result<()> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `for<'de> !: Deserialize<'de>` will fail
[INFO] [stdout]   --> src/bin/mngossip.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         melnet::request(neigh, "gossip", "gossip", req.clone()).await?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/bin/mngossip.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | async fn spam_neighbors(nstate: &NetState, req: GossipMsg) -> anyhow::Result<()> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #123748 <https://github.com/rust-lang/rust/issues/123748>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `for<'de> !: Deserialize<'de>` will fail
[INFO] [stdout]   --> src/bin/mngossip.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         melnet::request(neigh, "gossip", "gossip", req.clone()).await?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.41s
[INFO] running `Command { std: "docker" "inspect" "c191b20499c1d52f81646e470c5d5343c686efde9263d576fb475835584888b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c191b20499c1d52f81646e470c5d5343c686efde9263d576fb475835584888b1", kill_on_drop: false }`
[INFO] [stdout] c191b20499c1d52f81646e470c5d5343c686efde9263d576fb475835584888b1