[INFO] fetching crate rex-ucph 0.1.3... [INFO] checking rex-ucph-0.1.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate rex-ucph 0.1.3 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate rex-ucph 0.1.3 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 rex-ucph 0.1.3 [INFO] finished tweaking crates.io crate rex-ucph 0.1.3 [INFO] tweaked toml for crates.io crate rex-ucph 0.1.3 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding libudev v0.2.0 (latest: v0.3.0) [INFO] [stderr] Adding mach v0.1.2 (latest: v0.3.2) [INFO] [stderr] Adding mach v0.2.3 (latest: v0.3.2) [INFO] [stderr] Adding nix v0.14.1 (latest: v0.29.0) [INFO] [stderr] Adding serialport v3.3.0 (latest: v4.5.0) [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] db1015434523fed8e79d20aa6506b9f3ccf2bebe939e12d76344cb3baca0c8ab [INFO] running `Command { std: "docker" "start" "-a" "db1015434523fed8e79d20aa6506b9f3ccf2bebe939e12d76344cb3baca0c8ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db1015434523fed8e79d20aa6506b9f3ccf2bebe939e12d76344cb3baca0c8ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db1015434523fed8e79d20aa6506b9f3ccf2bebe939e12d76344cb3baca0c8ab", kill_on_drop: false }` [INFO] [stdout] db1015434523fed8e79d20aa6506b9f3ccf2bebe939e12d76344cb3baca0c8ab [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4093413a5edf51c476985b275afadbf8ba4879037683d5cd36631b1c8b336cc5 [INFO] running `Command { std: "docker" "start" "-a" "4093413a5edf51c476985b275afadbf8ba4879037683d5cd36631b1c8b336cc5", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stderr] Checking serialport v3.3.0 [INFO] [stderr] Checking rex-ucph v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/lib.rs:11:22 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{Write, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/lib.rs:11:22 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{Write, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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:31:12 [INFO] [stdout] | [INFO] [stdout] 28 | let conn = TTYPort::open(Path::new("/dev/ttyACM0"), &settings)?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 31 | Ok(Arlo { [INFO] [stdout] | ____________^ [INFO] [stdout] 32 | | connection: conn, [INFO] [stdout] 33 | | speed: None, [INFO] [stdout] 34 | | turn_speed: None, [INFO] [stdout] 35 | | step_time: None, [INFO] [stdout] 36 | | turn_time: None, [INFO] [stdout] 37 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [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:46:12 [INFO] [stdout] | [INFO] [stdout] 43 | let conn = TTYPort::open(Path::new(port), &settings)?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 46 | Ok(Arlo { [INFO] [stdout] | ____________^ [INFO] [stdout] 47 | | connection: conn, [INFO] [stdout] 48 | | speed: None, [INFO] [stdout] 49 | | turn_speed: None, [INFO] [stdout] 50 | | step_time: None, [INFO] [stdout] 51 | | turn_time: None, [INFO] [stdout] 52 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [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; 1 warning emitted [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:31:12 [INFO] [stdout] | [INFO] [stdout] 28 | let conn = TTYPort::open(Path::new("/dev/ttyACM0"), &settings)?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 31 | Ok(Arlo { [INFO] [stdout] | ____________^ [INFO] [stdout] 32 | | connection: conn, [INFO] [stdout] 33 | | speed: None, [INFO] [stdout] 34 | | turn_speed: None, [INFO] [stdout] 35 | | step_time: None, [INFO] [stdout] 36 | | turn_time: None, [INFO] [stdout] 37 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [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:46:12 [INFO] [stdout] | [INFO] [stdout] 43 | let conn = TTYPort::open(Path::new(port), &settings)?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 46 | Ok(Arlo { [INFO] [stdout] | ____________^ [INFO] [stdout] 47 | | connection: conn, [INFO] [stdout] 48 | | speed: None, [INFO] [stdout] 49 | | turn_speed: None, [INFO] [stdout] 50 | | step_time: None, [INFO] [stdout] 51 | | turn_time: None, [INFO] [stdout] 52 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rex-ucph` (lib test) due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rex-ucph` (lib) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "4093413a5edf51c476985b275afadbf8ba4879037683d5cd36631b1c8b336cc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4093413a5edf51c476985b275afadbf8ba4879037683d5cd36631b1c8b336cc5", kill_on_drop: false }` [INFO] [stdout] 4093413a5edf51c476985b275afadbf8ba4879037683d5cd36631b1c8b336cc5