[INFO] fetching crate simulation 0.0.2-alpha.0... [INFO] checking simulation-0.0.2-alpha.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate simulation 0.0.2-alpha.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate simulation 0.0.2-alpha.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 simulation 0.0.2-alpha.0 [INFO] finished tweaking crates.io crate simulation 0.0.2-alpha.0 [INFO] tweaked toml for crates.io crate simulation 0.0.2-alpha.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate simulation 0.0.2-alpha.0 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d24fdd68a5718e471abcce747382147557fbc1b3c2db489265be54239ccaa22b [INFO] running `Command { std: "docker" "start" "-a" "d24fdd68a5718e471abcce747382147557fbc1b3c2db489265be54239ccaa22b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d24fdd68a5718e471abcce747382147557fbc1b3c2db489265be54239ccaa22b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d24fdd68a5718e471abcce747382147557fbc1b3c2db489265be54239ccaa22b", kill_on_drop: false }` [INFO] [stdout] d24fdd68a5718e471abcce747382147557fbc1b3c2db489265be54239ccaa22b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bd2821ebd485e9c98169d9a1a24de4f3770fd1c800e7671cf579bcbdfc714f1a [INFO] running `Command { std: "docker" "start" "-a" "bd2821ebd485e9c98169d9a1a24de4f3770fd1c800e7671cf579bcbdfc714f1a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking tracing-core v0.1.6 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking tower-service v0.3.0-alpha.2 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking tower-layer v0.3.0-alpha.2 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] 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Checking futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Checking tower-util v0.3.0-alpha.2 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.19 [INFO] [stderr] Checking tokio-executor v0.2.0-alpha.6 [INFO] [stderr] Checking h2 v0.2.0-alpha.3 [INFO] [stderr] Checking tokio-timer v0.3.0-alpha.6 [INFO] [stderr] Checking tokio-net v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-fs v0.2.0-alpha.6 [INFO] [stderr] Checking tower-buffer v0.3.0-alpha.2 [INFO] [stderr] Checking tower-timeout v0.3.0-alpha.2 [INFO] [stderr] Checking tower-load v0.3.0-alpha.2 [INFO] [stderr] Checking tower-limit v0.3.0-alpha.2 [INFO] [stderr] Checking tower-retry v0.3.0-alpha.2 [INFO] [stderr] Checking tower v0.3.0-alpha.2 [INFO] [stderr] Checking tower-balance v0.3.0-alpha.2 [INFO] [stderr] Checking tokio v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-test v0.2.0-alpha.6 [INFO] [stderr] Checking hyper v0.13.0-alpha.4 [INFO] [stderr] Checking simulation v0.0.2-alpha.0 (/opt/rustwide/workdir) [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/deterministic/mod.rs:110:12 [INFO] [stdout] | [INFO] [stdout] 88 | let reactor = [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 89 | tokio_net::driver::Reactor::new().map_err(|source| Error::RuntimeBuild { source })?; [INFO] [stdout] 90 | let reactor_handle = reactor.handle(); [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 91 | let time = Time::new(); [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 92 | let reactor = time.wrap_park(reactor); [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 93 | let timer = tokio_timer::Timer::new_with_now(reactor, time.clone_now()); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 94 | let timer_handle = timer.handle(); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 95 | let clock = tokio_timer::clock::Clock::new_with_now(time.clone_now()); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 96 | let fault_injector = [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 97 | fault::FaultInjector::new(seed, timer_handle.clone(), time.clone_now()); [INFO] [stdout] 98 | let fault_injector_handle = fault_injector.handle(); [INFO] [stdout] | --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 99 | let network = network::Network::new_with_park(timer, fault_injector_handle.clone()); [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 100 | let network_handle = network.handle(); [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 101 | let executor = tokio_executor::current_thread::CurrentThread::new_with_park(network); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 102 | let handle = DeterministicRuntimeHandle { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 110 | Ok(DeterministicRuntime { [INFO] [stdout] | ____________^ [INFO] [stdout] 111 | | executor, [INFO] [stdout] 112 | | handle, [INFO] [stdout] 113 | | reactor_handle, [INFO] [stdout] 114 | | timer_handle, [INFO] [stdout] 115 | | clock, [INFO] [stdout] 116 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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/deterministic/mod.rs:140:20 [INFO] [stdout] | [INFO] [stdout] 136 | pub fn block_on(&mut self, f: F) -> F::Output [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 140 | self.enter(|executor| executor.block_on(f)) [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/deterministic/mod.rs:157:50 [INFO] [stdout] | [INFO] [stdout] 143 | fn enter(&mut self, f: F) -> R [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 155 | let _reactor = tokio_net::driver::set_default(&reactor_handle); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 156 | let _guard = tokio_timer::timer::set_default(timer_handle); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 157 | tokio_timer::clock::with_default(&clock, || { [INFO] [stdout] | __________________________________________________^ [INFO] [stdout] 158 | | let mut default_executor = tokio_executor::current_thread::TaskExecutor::current(); [INFO] [stdout] 159 | | tokio_executor::with_default(&mut default_executor, || f(executor)) [INFO] [stdout] 160 | | }) [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/deterministic/mod.rs:159:65 [INFO] [stdout] | [INFO] [stdout] 143 | fn enter(&mut self, f: F) -> R [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 159 | tokio_executor::with_default(&mut default_executor, || f(executor)) [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/deterministic/network/mod.rs:93:12 [INFO] [stdout] | [INFO] [stdout] 91 | let (tx, rx) = mpsc::channel(1); [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] 92 | self.listeners.insert(port, tx); [INFO] [stdout] 93 | Ok((port, rx)) [INFO] [stdout] | ^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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/deterministic/network/mod.rs:199:12 [INFO] [stdout] | [INFO] [stdout] 197 | let mut lock = self.inner.lock().unwrap(); [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 198 | let (port, listener_stream) = lock.register_new_listener(addr.port())?; [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 199 | Ok(Listener { [INFO] [stdout] | ____________^ [INFO] [stdout] 200 | | ttl: 0, [INFO] [stdout] 201 | | port, [INFO] [stdout] 202 | | stream: listener_stream, [INFO] [stdout] 203 | | inner: sync::Arc::clone(&self.inner), [INFO] [stdout] 204 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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 return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/deterministic/network/stream.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | std::mem::replace(&mut lock.delay, new); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = std::mem::replace(&mut lock.delay, new); [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/deterministic/time.rs:75:20 [INFO] [stdout] | [INFO] [stdout] 71 | pub(crate) fn wrap_park

(&self, park: P) -> Park

[INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 75 | Park::wrap(sync::Arc::clone(&self.inner), park) [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/singlethread/mod.rs:102:20 [INFO] [stdout] | [INFO] [stdout] 98 | pub fn block_on(&mut self, f: F) -> F::Output [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 102 | self.enter(|executor| executor.block_on(f)) [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/singlethread/mod.rs:117:50 [INFO] [stdout] | [INFO] [stdout] 105 | fn enter(&mut self, f: F) -> R [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 115 | let _reactor = tokio_net::driver::set_default(&reactor_handle); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 116 | let clock = clock; [INFO] [stdout] 117 | tokio_timer::clock::with_default(&clock, || { [INFO] [stdout] | __________________________________________________^ [INFO] [stdout] 118 | | let _timer = tokio_timer::timer::set_default(&timer_handle); [INFO] [stdout] 119 | | let mut default_executor = tokio_executor::current_thread::TaskExecutor::current(); [INFO] [stdout] 120 | | tokio_executor::with_default(&mut default_executor, || f(executor)) [INFO] [stdout] 121 | | }) [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/singlethread/mod.rs:120:65 [INFO] [stdout] | [INFO] [stdout] 105 | fn enter(&mut self, f: F) -> R [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 118 | let _timer = tokio_timer::timer::set_default(&timer_handle); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 119 | let mut default_executor = tokio_executor::current_thread::TaskExecutor::current(); [INFO] [stdout] 120 | tokio_executor::with_default(&mut default_executor, || f(executor)) [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 10 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `simulation` (lib) due to 11 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "bd2821ebd485e9c98169d9a1a24de4f3770fd1c800e7671cf579bcbdfc714f1a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd2821ebd485e9c98169d9a1a24de4f3770fd1c800e7671cf579bcbdfc714f1a", kill_on_drop: false }` [INFO] [stdout] bd2821ebd485e9c98169d9a1a24de4f3770fd1c800e7671cf579bcbdfc714f1a