[INFO] fetching crate swnb-timer 0.2.0... [INFO] checking swnb-timer-0.2.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate swnb-timer 0.2.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate swnb-timer 0.2.0 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 swnb-timer 0.2.0 [INFO] finished tweaking crates.io crate swnb-timer 0.2.0 [INFO] tweaked toml for crates.io crate swnb-timer 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate swnb-timer 0.2.0 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] 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] ef34b038ce8646574572caa9cd14d8eb464eb35df64c84a1125502af589a772c [INFO] running `Command { std: "docker" "start" "-a" "ef34b038ce8646574572caa9cd14d8eb464eb35df64c84a1125502af589a772c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef34b038ce8646574572caa9cd14d8eb464eb35df64c84a1125502af589a772c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef34b038ce8646574572caa9cd14d8eb464eb35df64c84a1125502af589a772c", kill_on_drop: false }` [INFO] [stdout] ef34b038ce8646574572caa9cd14d8eb464eb35df64c84a1125502af589a772c [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] a7394b9b26e0be9432eab2cec6848966527a495101a3f28ff4b1d82d17fbc876 [INFO] running `Command { std: "docker" "start" "-a" "a7394b9b26e0be9432eab2cec6848966527a495101a3f28ff4b1d82d17fbc876", kill_on_drop: false }` [INFO] [stderr] Checking swnb-timer v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::alloc::System` [INFO] [stdout] --> src/time.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::alloc::System; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH` [INFO] [stdout] --> src/time.rs:11:36 [INFO] [stdout] | [INFO] [stdout] 11 | use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::alloc::System` [INFO] [stdout] --> src/time.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::alloc::System; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH` [INFO] [stdout] --> src/time.rs:11:36 [INFO] [stdout] | [INFO] [stdout] 11 | use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `default` [INFO] [stdout] --> src/time.rs:413:15 [INFO] [stdout] | [INFO] [stdout] 413 | use std::{default, mem::size_of, time::Instant}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `default`, `mem::size_of`, and `time::Instant` [INFO] [stdout] --> src/time.rs:413:15 [INFO] [stdout] | [INFO] [stdout] 413 | use std::{default, mem::size_of, time::Instant}; [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/time.rs:196:9 [INFO] [stdout] | [INFO] [stdout] 143 | fn handle_task(cond: Arc<(Condvar, Mutex>)>) -> std::thread::JoinHandle<()> { [INFO] [stdout] | --------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 144 | let worker = move || { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 196 | / std::thread::Builder::new() [INFO] [stdout] 197 | | .name("swnb-timer".into()) [INFO] [stdout] 198 | | .spawn(worker) [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; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `swnb-timer` (lib) due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/time.rs:196:9 [INFO] [stdout] | [INFO] [stdout] 143 | fn handle_task(cond: Arc<(Condvar, Mutex>)>) -> std::thread::JoinHandle<()> { [INFO] [stdout] | --------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 144 | let worker = move || { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 196 | / std::thread::Builder::new() [INFO] [stdout] 197 | | .name("swnb-timer".into()) [INFO] [stdout] 198 | | .spawn(worker) [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; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `swnb-timer` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a7394b9b26e0be9432eab2cec6848966527a495101a3f28ff4b1d82d17fbc876", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7394b9b26e0be9432eab2cec6848966527a495101a3f28ff4b1d82d17fbc876", kill_on_drop: false }` [INFO] [stdout] a7394b9b26e0be9432eab2cec6848966527a495101a3f28ff4b1d82d17fbc876