[INFO] fetching crate embedded-nal-minimal-coaptcpserver 0.2.0... [INFO] checking embedded-nal-minimal-coaptcpserver-0.2.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate embedded-nal-minimal-coaptcpserver 0.2.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate embedded-nal-minimal-coaptcpserver 0.2.0 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate embedded-nal-minimal-coaptcpserver 0.2.0 [INFO] finished tweaking crates.io crate embedded-nal-minimal-coaptcpserver 0.2.0 [INFO] tweaked toml for crates.io crate embedded-nal-minimal-coaptcpserver 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 29 packages to latest compatible versions [INFO] [stderr] Adding coap-numbers v0.1.2 (latest: v0.2.4) [INFO] [stderr] Adding embedded-nal v0.6.0 (latest: v0.8.0) [INFO] [stderr] Adding hash32 v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (latest: v0.8.0) [INFO] [stderr] Adding minicbor v0.19.1 (latest: v0.24.2) [INFO] [stderr] Adding no-std-net v0.5.0 (latest: v0.6.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3fe9b5fd114140f7024ac6f0e5807841f017584ea4f622fc57e1a9a7f63f6247 [INFO] running `Command { std: "docker" "start" "-a" "3fe9b5fd114140f7024ac6f0e5807841f017584ea4f622fc57e1a9a7f63f6247", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3fe9b5fd114140f7024ac6f0e5807841f017584ea4f622fc57e1a9a7f63f6247", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fe9b5fd114140f7024ac6f0e5807841f017584ea4f622fc57e1a9a7f63f6247", kill_on_drop: false }` [INFO] [stdout] 3fe9b5fd114140f7024ac6f0e5807841f017584ea4f622fc57e1a9a7f63f6247 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c1e914115f841c68a057c5f29f98efbdc8593b936fcff5760004cdf37a1ee7bb [INFO] running `Command { std: "docker" "start" "-a" "c1e914115f841c68a057c5f29f98efbdc8593b936fcff5760004cdf37a1ee7bb", kill_on_drop: false }` [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Compiling minicbor v0.19.1 [INFO] [stderr] Checking coap-numbers v0.2.4 [INFO] [stderr] Compiling heapless v0.8.0 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking hash32 v0.3.1 [INFO] [stderr] Compiling document-features v0.2.10 [INFO] [stderr] Checking no-std-net v0.5.0 [INFO] [stderr] Checking coap-numbers v0.1.2 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking coap-message v0.3.3 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking coap-handler v0.2.0 [INFO] [stderr] Checking embedded-nal v0.6.0 [INFO] [stderr] Checking embedded-nal-tcpextensions v0.1.2 [INFO] [stderr] Checking coap-message-utils v0.3.6 [INFO] [stderr] Checking coap-message-implementations v0.1.5 [INFO] [stderr] Checking embedded-nal-minimal-coaptcpserver v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:689:17 [INFO] [stdout] | [INFO] [stdout] 689 | Ok(never) => match never {}, [INFO] [stdout] | ^^^^^^^^^ matches no values because `Never` is uninhabited [INFO] [stdout] | [INFO] [stdout] = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 208 | fn new(socket: ST::TcpSocket) -> Self { [INFO] [stdout] | --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 215 | socket: Some(socket), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:627:13 [INFO] [stdout] | [INFO] [stdout] 613 | error: Error, [INFO] [stdout] | ----------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 627 | Err(nb::Error::Other(error)) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:651:22 [INFO] [stdout] | [INFO] [stdout] 648 | pub fn new(server: ST::TcpSocket) -> Self { [INFO] [stdout] | --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 651 | clients: Default::default(), [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 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `embedded-nal-minimal-coaptcpserver` (lib) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lib.rs:689:17 [INFO] [stdout] | [INFO] [stdout] 689 | Ok(never) => match never {}, [INFO] [stdout] | ^^^^^^^^^ matches no values because `Never` is uninhabited [INFO] [stdout] | [INFO] [stdout] = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 208 | fn new(socket: ST::TcpSocket) -> Self { [INFO] [stdout] | --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 215 | socket: Some(socket), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:627:13 [INFO] [stdout] | [INFO] [stdout] 613 | error: Error, [INFO] [stdout] | ----------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 627 | Err(nb::Error::Other(error)) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:651:22 [INFO] [stdout] | [INFO] [stdout] 648 | pub fn new(server: ST::TcpSocket) -> Self { [INFO] [stdout] | --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 651 | clients: Default::default(), [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 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `embedded-nal-minimal-coaptcpserver` (lib test) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "c1e914115f841c68a057c5f29f98efbdc8593b936fcff5760004cdf37a1ee7bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1e914115f841c68a057c5f29f98efbdc8593b936fcff5760004cdf37a1ee7bb", kill_on_drop: false }` [INFO] [stdout] c1e914115f841c68a057c5f29f98efbdc8593b936fcff5760004cdf37a1ee7bb