[INFO] fetching crate smolscale2 0.5.8... [INFO] checking smolscale2-0.5.8 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate smolscale2 0.5.8 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate smolscale2 0.5.8 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate smolscale2 0.5.8 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate smolscale2 0.5.8 [INFO] tweaked toml for crates.io crate smolscale2 0.5.8 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate smolscale2 0.5.8 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1dabea55ac23e1db0fbed127c1c690b947783234a20d54892c165b654bfc07e6 [INFO] running `Command { std: "docker" "start" "-a" "1dabea55ac23e1db0fbed127c1c690b947783234a20d54892c165b654bfc07e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1dabea55ac23e1db0fbed127c1c690b947783234a20d54892c165b654bfc07e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1dabea55ac23e1db0fbed127c1c690b947783234a20d54892c165b654bfc07e6", kill_on_drop: false }` [INFO] [stdout] 1dabea55ac23e1db0fbed127c1c690b947783234a20d54892c165b654bfc07e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] efe11d33e4aa527a9131b896232978eac7bb6de8c8ad4d90493f0f1bec66e26d [INFO] running `Command { std: "docker" "start" "-a" "efe11d33e4aa527a9131b896232978eac7bb6de8c8ad4d90493f0f1bec66e26d", kill_on_drop: false }` [INFO] [stderr] Compiling portable-atomic v1.7.0 [INFO] [stderr] Compiling portable-atomic-util v0.2.2 [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking fastrand v2.1.0 [INFO] [stderr] Compiling rustix v0.38.34 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking unicode-width v0.1.13 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Compiling syn v2.0.72 [INFO] [stderr] Compiling serde_json v1.0.122 [INFO] [stderr] Compiling cc v1.1.7 [INFO] [stderr] Checking async-task v4.7.1 [INFO] [stderr] Checking plotters-backend v0.3.6 [INFO] [stderr] Checking gimli v0.29.0 [INFO] [stderr] Checking lock_api v0.4.12 [INFO] [stderr] Compiling anyhow v1.0.86 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking plotters-svg v0.3.6 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking piper v0.2.3 [INFO] [stderr] Checking miniz_oxide v0.7.4 [INFO] [stderr] Checking regex v1.10.5 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking object v0.36.2 [INFO] [stderr] Checking tokio v1.39.2 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking sdd v2.1.0 [INFO] [stderr] Checking futures-intrusive v0.5.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking tabwriter v1.4.0 [INFO] [stderr] Checking st3 v0.4.1 [INFO] [stderr] Checking async-event v0.2.1 [INFO] [stderr] Checking futures-micro v0.3.1 [INFO] [stderr] Checking env_logger v0.9.3 [INFO] [stderr] Checking async-oneshot v0.4.2 [INFO] [stderr] Checking concurrent-queue v2.5.0 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking plotters v0.3.6 [INFO] [stderr] Checking event-listener v5.3.1 [INFO] [stderr] Checking async-executor v1.13.0 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Compiling backtrace v0.3.73 [INFO] [stderr] Checking event-listener-strategy v0.5.2 [INFO] [stderr] Checking async-channel v2.3.1 [INFO] [stderr] Checking async-lock v3.4.0 [INFO] [stderr] Checking blocking v1.6.1 [INFO] [stderr] Checking async-compat v0.2.4 [INFO] [stderr] Checking addr2line v0.22.0 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking scc v2.1.6 [INFO] [stderr] Checking polling v3.7.2 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling serde_derive v1.0.204 [INFO] [stderr] Checking async-io v2.3.3 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking smolscale2 v0.5.8 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `FutureExt` [INFO] [stdout] --> src/new_executor.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | use futures_lite::{Future, FutureExt}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_rec` [INFO] [stdout] --> src/queues.rs:401:17 [INFO] [stdout] | [INFO] [stdout] 401 | let mut last_rec = started; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_rec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/queues.rs:401:13 [INFO] [stdout] | [INFO] [stdout] 401 | let mut last_rec = started; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/new_executor.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 97 | continue; [INFO] [stdout] | -------- any code following this expression is unreachable [INFO] [stdout] 98 | // normally useless [INFO] [stdout] 99 | / if (this.worker.is_empty() [INFO] [stdout] 100 | | && !selected.worker.is_empty()) [INFO] [stdout] 101 | | && this.worker.spare_capacity() [INFO] [stdout] 102 | | > selected.worker.spare_capacity() [INFO] [stdout] ... | [INFO] [stdout] 107 | | continue; [INFO] [stdout] 108 | | } [INFO] [stdout] | |_____________^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Option` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/queues.rs:193:31 [INFO] [stdout] | [INFO] [stdout] 189 | let g = scc::ebr::Guard::new(); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 193 | .field("thread", &self.thread()) [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] warning: method `rebalance` is never used [INFO] [stdout] --> src/queues.rs:93:12 [INFO] [stdout] | [INFO] [stdout] 47 | impl GlobalQueue { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 93 | pub fn rebalance(&self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `smolscale2` (lib) due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "efe11d33e4aa527a9131b896232978eac7bb6de8c8ad4d90493f0f1bec66e26d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "efe11d33e4aa527a9131b896232978eac7bb6de8c8ad4d90493f0f1bec66e26d", kill_on_drop: false }` [INFO] [stdout] efe11d33e4aa527a9131b896232978eac7bb6de8c8ad4d90493f0f1bec66e26d