[INFO] cloning repository https://github.com/WilliamVenner/threadbeam [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WilliamVenner/threadbeam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fthreadbeam", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fthreadbeam'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5841c8070ff8f4a6b91335066eaec59419bf3d6c [INFO] checking WilliamVenner/threadbeam/5841c8070ff8f4a6b91335066eaec59419bf3d6c against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fthreadbeam" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/WilliamVenner/threadbeam 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 git repo https://github.com/WilliamVenner/threadbeam [INFO] finished tweaking git repo https://github.com/WilliamVenner/threadbeam [INFO] tweaked toml for git repo https://github.com/WilliamVenner/threadbeam written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/WilliamVenner/threadbeam 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 84d868b70ecdf681efdb80be16f90eb03a717ec358927d1e456c29537c8ed9e2 [INFO] running `Command { std: "docker" "start" "-a" "84d868b70ecdf681efdb80be16f90eb03a717ec358927d1e456c29537c8ed9e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "84d868b70ecdf681efdb80be16f90eb03a717ec358927d1e456c29537c8ed9e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "84d868b70ecdf681efdb80be16f90eb03a717ec358927d1e456c29537c8ed9e2", kill_on_drop: false }` [INFO] [stdout] 84d868b70ecdf681efdb80be16f90eb03a717ec358927d1e456c29537c8ed9e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 19519d1813b94c918359b73734b8351b6ad804bbddb76177fa96dc79d8225ea4 [INFO] running `Command { std: "docker" "start" "-a" "19519d1813b94c918359b73734b8351b6ad804bbddb76177fa96dc79d8225ea4", kill_on_drop: false }` [INFO] [stderr] Checking threadbeam v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/impl.rs:65:13 [INFO] [stdout] | [INFO] [stdout] 65 | unsafe { Box::from_raw(self.0.as_ptr()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 65 | unsafe { let _ = Box::from_raw(self.0.as_ptr()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/impl.rs:103:13 [INFO] [stdout] | [INFO] [stdout] 103 | unsafe { Box::from_raw(self.0.as_ptr()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 103 | unsafe { let _ = Box::from_raw(self.0.as_ptr()); }; [INFO] [stdout] | +++++++ + [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/impl.rs:163:3 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn spawn(spawn: F) -> (Option, std::thread::JoinHandle) [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 161 | let (tx, rx) = channel(); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 162 | let join = std::thread::spawn(move || spawn(tx)); [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 163 | (rx.recv(), join) [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: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `threadbeam` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/impl.rs:65:13 [INFO] [stdout] | [INFO] [stdout] 65 | unsafe { Box::from_raw(self.0.as_ptr()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 65 | unsafe { let _ = Box::from_raw(self.0.as_ptr()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/impl.rs:103:13 [INFO] [stdout] | [INFO] [stdout] 103 | unsafe { Box::from_raw(self.0.as_ptr()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 103 | unsafe { let _ = Box::from_raw(self.0.as_ptr()); }; [INFO] [stdout] | +++++++ + [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/impl.rs:163:3 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn spawn(spawn: F) -> (Option, std::thread::JoinHandle) [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 161 | let (tx, rx) = channel(); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 162 | let join = std::thread::spawn(move || spawn(tx)); [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 163 | (rx.recv(), join) [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: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `threadbeam` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "19519d1813b94c918359b73734b8351b6ad804bbddb76177fa96dc79d8225ea4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19519d1813b94c918359b73734b8351b6ad804bbddb76177fa96dc79d8225ea4", kill_on_drop: false }` [INFO] [stdout] 19519d1813b94c918359b73734b8351b6ad804bbddb76177fa96dc79d8225ea4