[INFO] fetching crate udpsec 0.2.0... [INFO] checking udpsec-0.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate udpsec 0.2.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate udpsec 0.2.0 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 udpsec 0.2.0 [INFO] finished tweaking crates.io crate udpsec 0.2.0 [INFO] tweaked toml for crates.io crate udpsec 0.2.0 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 20 packages to latest compatible versions [INFO] [stderr] Adding curve25519-dalek v3.2.1 (available: v4.1.3) [INFO] [stderr] Adding digest v0.9.0 (available: v0.10.7) [INFO] [stderr] Adding generic-array v0.14.7 (available: v1.1.0) [INFO] [stderr] Adding getrandom v0.1.16 (available: v0.2.15) [INFO] [stderr] Adding rand_core v0.5.1 (available: v0.6.4) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding x25519-dalek v1.2.0 (available: v2.0.1) [INFO] [stderr] Adding zeroize v1.3.0 (available: v1.8.1) [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] 70a80f4678b8ddff3313c43dbcc0f063ddf1e751bbcc22124d4a6eaa629530e0 [INFO] running `Command { std: "docker" "start" "-a" "70a80f4678b8ddff3313c43dbcc0f063ddf1e751bbcc22124d4a6eaa629530e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70a80f4678b8ddff3313c43dbcc0f063ddf1e751bbcc22124d4a6eaa629530e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70a80f4678b8ddff3313c43dbcc0f063ddf1e751bbcc22124d4a6eaa629530e0", kill_on_drop: false }` [INFO] [stdout] 70a80f4678b8ddff3313c43dbcc0f063ddf1e751bbcc22124d4a6eaa629530e0 [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] 35c6bcecab97f41d210eddc05b4c6ec1328c3702d43d802f5a2d1b93dfdf7294 [INFO] running `Command { std: "docker" "start" "-a" "35c6bcecab97f41d210eddc05b4c6ec1328c3702d43d802f5a2d1b93dfdf7294", kill_on_drop: false }` [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking subtle v2.6.1 [INFO] [stderr] Checking wait_not_await v0.2.1 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Compiling zeroize_derive v1.4.2 [INFO] [stderr] Checking zeroize v1.3.0 [INFO] [stderr] Checking curve25519-dalek v3.2.1 [INFO] [stderr] Checking x25519-dalek v1.2.0 [INFO] [stderr] Checking udpsec v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::DATAGRAM_MAX_LENGTH` [INFO] [stdout] --> src/tests.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use super::DATAGRAM_MAX_LENGTH; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `xor_encode` [INFO] [stdout] --> src/tests.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use super::{rand_u8, xor_encode}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Packet` [INFO] [stdout] --> src/tests.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | use super::{Packet, Socket}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::DATAGRAM_MAX_LENGTH` [INFO] [stdout] --> src/tests.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use super::DATAGRAM_MAX_LENGTH; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::rand_core::OsRng` [INFO] [stdout] --> src/tests.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use super::rand_core::OsRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `PublicKey` and `ReusableSecret` [INFO] [stdout] --> src/tests.rs:6:27 [INFO] [stdout] | [INFO] [stdout] 6 | use super::x25519_dalek::{PublicKey, ReusableSecret}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:15:1 [INFO] [stdout] | [INFO] [stdout] 15 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:192:15 [INFO] [stdout] | [INFO] [stdout] 191 | pub fn from_socket(socket: UdpSocket) -> Result { [INFO] [stdout] | ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 192 | match socket.local_addr() { [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` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:271:15 [INFO] [stdout] | [INFO] [stdout] 267 | let (sender, receiver) = mpsc::channel::<()>(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 271 | match self.write(addr, Packet::KeyExchangeInit(PublicKey::from(&self.floating_connections.get(&addr).unwrap().0))) { [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] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:276:21 [INFO] [stdout] | [INFO] [stdout] 276 | receiver.recv(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 276 | let _ = receiver.recv(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:340:25 [INFO] [stdout] | [INFO] [stdout] 340 | self.write(from, Packet::KeyExchangeDone(PublicKey::from(&secret))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 340 | let _ = self.write(from, Packet::KeyExchangeDone(PublicKey::from(&secret))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:349:29 [INFO] [stdout] | [INFO] [stdout] 349 | ... sender.send(()); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 349 | let _ = sender.send(()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `udpsec` (lib test) due to 3 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this value of type `Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:192:15 [INFO] [stdout] | [INFO] [stdout] 191 | pub fn from_socket(socket: UdpSocket) -> Result { [INFO] [stdout] | ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 192 | match socket.local_addr() { [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` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:271:15 [INFO] [stdout] | [INFO] [stdout] 267 | let (sender, receiver) = mpsc::channel::<()>(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 271 | match self.write(addr, Packet::KeyExchangeInit(PublicKey::from(&self.floating_connections.get(&addr).unwrap().0))) { [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] warning: function `get_socket` is never used [INFO] [stdout] --> src/tests.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn get_socket() -> Socket { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_sockets_pair` is never used [INFO] [stdout] --> src/tests.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn get_sockets_pair() -> (Socket, Socket) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_rand_data` is never used [INFO] [stdout] --> src/tests.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn get_rand_data(size: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:276:21 [INFO] [stdout] | [INFO] [stdout] 276 | receiver.recv(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 276 | let _ = receiver.recv(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:340:25 [INFO] [stdout] | [INFO] [stdout] 340 | self.write(from, Packet::KeyExchangeDone(PublicKey::from(&secret))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 340 | let _ = self.write(from, Packet::KeyExchangeDone(PublicKey::from(&secret))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:349:29 [INFO] [stdout] | [INFO] [stdout] 349 | ... sender.send(()); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 349 | let _ = sender.send(()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `udpsec` (lib) due to 3 previous errors; 11 warnings emitted [INFO] running `Command { std: "docker" "inspect" "35c6bcecab97f41d210eddc05b4c6ec1328c3702d43d802f5a2d1b93dfdf7294", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35c6bcecab97f41d210eddc05b4c6ec1328c3702d43d802f5a2d1b93dfdf7294", kill_on_drop: false }` [INFO] [stdout] 35c6bcecab97f41d210eddc05b4c6ec1328c3702d43d802f5a2d1b93dfdf7294