[INFO] fetching crate renetcode 0.0.12... [INFO] checking renetcode-0.0.12 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate renetcode 0.0.12 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate renetcode 0.0.12 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 renetcode 0.0.12 [INFO] finished tweaking crates.io crate renetcode 0.0.12 [INFO] tweaked toml for crates.io crate renetcode 0.0.12 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate renetcode 0.0.12 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 68de43f1fed11f17ae8e6e62ea0d3ca71bc79159fe6c0a00768823a2e489ed45 [INFO] running `Command { std: "docker" "start" "-a" "68de43f1fed11f17ae8e6e62ea0d3ca71bc79159fe6c0a00768823a2e489ed45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "68de43f1fed11f17ae8e6e62ea0d3ca71bc79159fe6c0a00768823a2e489ed45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68de43f1fed11f17ae8e6e62ea0d3ca71bc79159fe6c0a00768823a2e489ed45", kill_on_drop: false }` [INFO] [stdout] 68de43f1fed11f17ae8e6e62ea0d3ca71bc79159fe6c0a00768823a2e489ed45 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4a7cddfe3d2113c98a9ee959d5a65ecf2f7e16674076907578ce919d14a61bce [INFO] running `Command { std: "docker" "start" "-a" "4a7cddfe3d2113c98a9ee959d5a65ecf2f7e16674076907578ce919d14a61bce", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking zeroize v1.7.0 [INFO] [stderr] Checking cpufeatures v0.2.12 [INFO] [stderr] Checking subtle v2.5.0 [INFO] [stderr] Checking opaque-debug v0.3.0 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Checking inout v0.1.3 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking cipher v0.4.4 [INFO] [stderr] Checking universal-hash v0.5.1 [INFO] [stderr] Checking aead v0.5.2 [INFO] [stderr] Checking poly1305 v0.8.0 [INFO] [stderr] Checking chacha20 v0.9.1 [INFO] [stderr] Checking chacha20poly1305 v0.10.1 [INFO] [stderr] Checking renetcode v0.0.12 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `Result<(usize, std::net::SocketAddr), std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> examples/echo.rs:142:19 [INFO] [stdout] | [INFO] [stdout] 130 | let mut server: NetcodeServer = NetcodeServer::new(config); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 131 | let udp_socket = UdpSocket::bind(addr).unwrap(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 142 | match udp_socket.recv_from(&mut buffer) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Result<(usize, std::net::SocketAddr), std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> examples/echo.rs:198:19 [INFO] [stdout] | [INFO] [stdout] 171 | let udp_socket = UdpSocket::bind("127.0.0.1:0").unwrap(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 175 | let stdin_channel = spawn_stdin_channel(); [INFO] [stdout] | ------------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 198 | match udp_socket.recv_from(&mut buffer) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `renetcode` (example "echo") due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "4a7cddfe3d2113c98a9ee959d5a65ecf2f7e16674076907578ce919d14a61bce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a7cddfe3d2113c98a9ee959d5a65ecf2f7e16674076907578ce919d14a61bce", kill_on_drop: false }` [INFO] [stdout] 4a7cddfe3d2113c98a9ee959d5a65ecf2f7e16674076907578ce919d14a61bce