[INFO] fetching crate lofi 0.2.0... [INFO] building lofi-0.2.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate lofi 0.2.0 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate lofi 0.2.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config [INFO] started tweaking crates.io crate lofi 0.2.0 [INFO] finished tweaking crates.io crate lofi 0.2.0 [INFO] tweaked toml for crates.io crate lofi 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 70 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.3.6 (available: v0.5.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 381f8bc79e93faaafe2af90112232e73f57ea3b5f8837450595b6f71249fb39a [INFO] running `Command { std: "docker" "start" "-a" "381f8bc79e93faaafe2af90112232e73f57ea3b5f8837450595b6f71249fb39a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "381f8bc79e93faaafe2af90112232e73f57ea3b5f8837450595b6f71249fb39a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "381f8bc79e93faaafe2af90112232e73f57ea3b5f8837450595b6f71249fb39a", kill_on_drop: false }` [INFO] [stdout] 381f8bc79e93faaafe2af90112232e73f57ea3b5f8837450595b6f71249fb39a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2b9fd09c406d35e3ae14c1dcfdb791306a80db0f813a3f091280e5517e565c2f [INFO] running `Command { std: "docker" "start" "-a" "2b9fd09c406d35e3ae14c1dcfdb791306a80db0f813a3f091280e5517e565c2f", kill_on_drop: false }` [INFO] [stderr] Compiling bumpalo v3.16.0 [INFO] [stderr] Compiling lofi v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0432]: unresolved import `std::lazy` [INFO] [stdout] --> src/noop_waker.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | lazy::SyncLazy, [INFO] [stdout] | ^^^^ could not find `lazy` in `std` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `once_cell` has been stable since 1.70.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(once_cell)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/alloc.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | map.compare_and_swap(map_value, 0, SeqCst); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `CBox>: PinCoerceUnsized` is not satisfied [INFO] [stdout] --> src/lib.rs:117:84 [INFO] [stdout] | [INFO] [stdout] 117 | (Poll::Pending, AwaitCondition::NextTick) => self.tasks.push_front(task), [INFO] [stdout] | ^^^^ the trait `PinCoerceUnsized` is not implemented for `CBox>` [INFO] [stdout] | [INFO] [stdout] = help: the following other types implement trait `PinCoerceUnsized`: [INFO] [stdout] &'a T [INFO] [stdout] &'a mut T [INFO] [stdout] *const T [INFO] [stdout] *mut T [INFO] [stdout] Arc [INFO] [stdout] Cell [INFO] [stdout] NonNull [INFO] [stdout] Pin [INFO] [stdout] and 11 others [INFO] [stdout] = note: required for the cast from `Pin>>` to `Pin + 'static)>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `CBox>: PinCoerceUnsized` is not satisfied [INFO] [stdout] --> src/lib.rs:118:89 [INFO] [stdout] | [INFO] [stdout] 118 | (Poll::Pending, AwaitCondition::Exclusive) => self.exclusive_tasks.push(task), [INFO] [stdout] | ^^^^ the trait `PinCoerceUnsized` is not implemented for `CBox>` [INFO] [stdout] | [INFO] [stdout] = help: the following other types implement trait `PinCoerceUnsized`: [INFO] [stdout] &'a T [INFO] [stdout] &'a mut T [INFO] [stdout] *const T [INFO] [stdout] *mut T [INFO] [stdout] Arc [INFO] [stdout] Cell [INFO] [stdout] NonNull [INFO] [stdout] Pin [INFO] [stdout] and 11 others [INFO] [stdout] = note: required for the cast from `Pin>>` to `Pin + 'static)>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `CBox>: PinCoerceUnsized` is not satisfied [INFO] [stdout] --> src/lib.rs:128:56 [INFO] [stdout] | [INFO] [stdout] 128 | Poll::Pending => self.tasks.push_front(task), [INFO] [stdout] | ^^^^ the trait `PinCoerceUnsized` is not implemented for `CBox>` [INFO] [stdout] | [INFO] [stdout] = help: the following other types implement trait `PinCoerceUnsized`: [INFO] [stdout] &'a T [INFO] [stdout] &'a mut T [INFO] [stdout] *const T [INFO] [stdout] *mut T [INFO] [stdout] Arc [INFO] [stdout] Cell [INFO] [stdout] NonNull [INFO] [stdout] Pin [INFO] [stdout] and 11 others [INFO] [stdout] = note: required for the cast from `Pin>>` to `Pin + 'static)>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `CBox>: PinCoerceUnsized` is not satisfied [INFO] [stdout] --> src/lib.rs:148:27 [INFO] [stdout] | [INFO] [stdout] 148 | self.spawned.push(task); [INFO] [stdout] | ^^^^ the trait `PinCoerceUnsized` is not implemented for `CBox>` [INFO] [stdout] | [INFO] [stdout] = help: the following other types implement trait `PinCoerceUnsized`: [INFO] [stdout] &'a T [INFO] [stdout] &'a mut T [INFO] [stdout] *const T [INFO] [stdout] *mut T [INFO] [stdout] Arc [INFO] [stdout] Cell [INFO] [stdout] NonNull [INFO] [stdout] Pin [INFO] [stdout] and 11 others [INFO] [stdout] = note: required for the cast from `Pin>>` to `Pin + 'static)>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/lib.rs:168:32 [INFO] [stdout] | [INFO] [stdout] 167 | let value = fut.await; [INFO] [stdout] | ----- [INFO] [stdout] | | [INFO] [stdout] | `value` calls a custom destructor [INFO] [stdout] | `value` will be dropped later as of Edition 2024 [INFO] [stdout] 168 | if let Some(arc) = return_place.upgrade() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 171 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] note: `#1` invokes this custom destructor [INFO] [stdout] --> src/alloc.rs:290:1 [INFO] [stdout] | [INFO] [stdout] 290 | / impl Drop for CArc { [INFO] [stdout] 291 | | fn drop(&mut self) { [INFO] [stdout] 292 | | // SAFETY: `inner` is valid while CArc exists. [INFO] [stdout] 293 | | let inner = unsafe { &*self.0.as_ptr() }; [INFO] [stdout] ... | [INFO] [stdout] 307 | | } [INFO] [stdout] | |_^ [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0432. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `lofi` (lib) due to 6 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2b9fd09c406d35e3ae14c1dcfdb791306a80db0f813a3f091280e5517e565c2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b9fd09c406d35e3ae14c1dcfdb791306a80db0f813a3f091280e5517e565c2f", kill_on_drop: false }` [INFO] [stdout] 2b9fd09c406d35e3ae14c1dcfdb791306a80db0f813a3f091280e5517e565c2f