[INFO] fetching crate rusty-forkfork 0.4.0...
[INFO] checking rusty-forkfork-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate rusty-forkfork 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rusty-forkfork 0.4.0 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 rusty-forkfork 0.4.0
[INFO] finished tweaking crates.io crate rusty-forkfork 0.4.0
[INFO] tweaked toml for crates.io crate rusty-forkfork 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding quick-error v1.2.3 (available: v2.0.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[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-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_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] 39f641c1011324912c3fc1a272de29594b6a6e1152321986420fcbef847d3093
[INFO] running `Command { std: "docker" "start" "-a" "39f641c1011324912c3fc1a272de29594b6a6e1152321986420fcbef847d3093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39f641c1011324912c3fc1a272de29594b6a6e1152321986420fcbef847d3093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f641c1011324912c3fc1a272de29594b6a6e1152321986420fcbef847d3093", kill_on_drop: false }`
[INFO] [stdout] 39f641c1011324912c3fc1a272de29594b6a6e1152321986420fcbef847d3093
[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 -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] dfa5db8f97b34a9b575359339f2b54739c702aa9328d041dba8a2d48976e62d6
[INFO] running `Command { std: "docker" "start" "-a" "dfa5db8f97b34a9b575359339f2b54739c702aa9328d041dba8a2d48976e62d6", kill_on_drop: false }`
[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rusty-forkfork v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]    --> src/fork.rs:379:5
[INFO] [stdout]     |
[INFO] [stdout] 379 |     fn child_aborted_if_panics() {
[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 `!: TestExitStatus<_>` will fail
[INFO] [stdout]    --> src/fork.rs:380:22
[INFO] [stdout]     |
[INFO] [stdout] 380 |           let status = fork(
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 381 | |             "fork::test::child_aborted_if_panics",
[INFO] [stdout] 382 | |             rusty_fork_id!(),
[INFO] [stdout] 383 | |             |_| (),
[INFO] [stdout] 384 | |             |child, _| child.wait().unwrap(),
[INFO] [stdout] 385 | |             || panic!("testing a panic, nothing to see here"),
[INFO] [stdout] 386 | |         )
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "dfa5db8f97b34a9b575359339f2b54739c702aa9328d041dba8a2d48976e62d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa5db8f97b34a9b575359339f2b54739c702aa9328d041dba8a2d48976e62d6", kill_on_drop: false }`
[INFO] [stdout] dfa5db8f97b34a9b575359339f2b54739c702aa9328d041dba8a2d48976e62d6