[INFO] fetching crate melnet 0.2.27...
[INFO] testing melnet-0.2.27 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate melnet 0.2.27 into /workspace/builds/worker-3-tc1/source
[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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate melnet 0.2.27 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3aa9b61595b9d3e722681d176a2e2f1a65a216deea3f709a5112b9d0d616bef7
[INFO] running `Command { std: "docker" "start" "-a" "3aa9b61595b9d3e722681d176a2e2f1a65a216deea3f709a5112b9d0d616bef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3aa9b61595b9d3e722681d176a2e2f1a65a216deea3f709a5112b9d0d616bef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aa9b61595b9d3e722681d176a2e2f1a65a216deea3f709a5112b9d0d616bef7", kill_on_drop: false }`
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[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d210befcc615d85f953871f610c6e73ff3bed889b79404573c2dd34ad913cde
[INFO] running `Command { std: "docker" "start" "-a" "4d210befcc615d85f953871f610c6e73ff3bed889b79404573c2dd34ad913cde", kill_on_drop: false }`
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[INFO] [stderr]    Compiling melnet v0.2.27 (/opt/rustwide/workdir)
[INFO] [stdout] error: 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 Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[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: `#[deny(dependency_on_unit_never_type_fallback)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `()` annotations to avoid fallback changes
[INFO] [stdout]    |
[INFO] [stdout] 52 |         melnet::request::<_, ()>(neigh, "gossip", "gossip", req.clone()).await?;
[INFO] [stdout]    |                        +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `melnet` (bin "mngossip") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4d210befcc615d85f953871f610c6e73ff3bed889b79404573c2dd34ad913cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d210befcc615d85f953871f610c6e73ff3bed889b79404573c2dd34ad913cde", kill_on_drop: false }`
[INFO] [stdout] 4d210befcc615d85f953871f610c6e73ff3bed889b79404573c2dd34ad913cde