[INFO] fetching crate loom 0.7.2... [INFO] checking loom-0.7.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate loom 0.7.2 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate loom 0.7.2 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 loom 0.7.2 [INFO] finished tweaking crates.io crate loom 0.7.2 [INFO] tweaked toml for crates.io crate loom 0.7.2 written to /workspace/builds/worker-2-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 61 packages to latest compatible versions [INFO] [stderr] Adding matchers v0.1.0 (available: v0.2.0) [INFO] [stderr] Adding nu-ansi-term v0.46.0 (available: v0.50.1) [INFO] [stderr] Adding regex-automata v0.1.10 (available: v0.4.7) [INFO] [stderr] Adding regex-syntax v0.6.29 (available: v0.8.4) [INFO] [stderr] Adding windows-strings v0.1.0 (available: v0.2.0) [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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1cc11833c3b5d36582ab869f4621f92e3dc6a11d0c758a10e14e6dc6501fa944 [INFO] running `Command { std: "docker" "start" "-a" "1cc11833c3b5d36582ab869f4621f92e3dc6a11d0c758a10e14e6dc6501fa944", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1cc11833c3b5d36582ab869f4621f92e3dc6a11d0c758a10e14e6dc6501fa944", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1cc11833c3b5d36582ab869f4621f92e3dc6a11d0c758a10e14e6dc6501fa944", kill_on_drop: false }` [INFO] [stdout] 1cc11833c3b5d36582ab869f4621f92e3dc6a11d0c758a10e14e6dc6501fa944 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c3de51aced566f7bea34217eb7af272f6a654db15fa09cd8d2019bf546b95b66 [INFO] running `Command { std: "docker" "start" "-a" "c3de51aced566f7bea34217eb7af272f6a654db15fa09cd8d2019bf546b95b66", kill_on_drop: false }` [INFO] [stderr] Compiling rustversion v1.0.17 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Checking overload v0.1.1 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking scoped-tls v1.0.1 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking nu-ansi-term v0.46.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Compiling generator v0.8.3 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking loom v0.7.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/rt/object.rs:202:84 [INFO] [stdout] | [INFO] [stdout] 202 | pub(super) fn iter_mut<'a, O>(&'a mut self) -> impl DoubleEndedIterator [INFO] [stdout] | -- lifetime `'a` declared here ^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/thread.rs:283:51 [INFO] [stdout] | [INFO] [stdout] 283 | unsafe fn get(&'static self) -> Option> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 283 | unsafe fn get(&'static self) -> Option> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::sync::MutexGuard<'_, Option>>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/thread.rs:229:9 [INFO] [stdout] | [INFO] [stdout] 227 | pub fn join(self) -> std::thread::Result { [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 228 | self.notify.wait(location!()); [INFO] [stdout] 229 | self.result.lock().unwrap().take().unwrap() [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 `loom` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c3de51aced566f7bea34217eb7af272f6a654db15fa09cd8d2019bf546b95b66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3de51aced566f7bea34217eb7af272f6a654db15fa09cd8d2019bf546b95b66", kill_on_drop: false }` [INFO] [stdout] c3de51aced566f7bea34217eb7af272f6a654db15fa09cd8d2019bf546b95b66