[INFO] fetching crate chashmap-next 2.2.3... [INFO] checking chashmap-next-2.2.3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate chashmap-next 2.2.3 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate chashmap-next 2.2.3 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 chashmap-next 2.2.3 [INFO] finished tweaking crates.io crate chashmap-next 2.2.3 [INFO] tweaked toml for crates.io crate chashmap-next 2.2.3 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 16 packages to latest compatible versions [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding parking_lot v0.11.2 (available: v0.12.3) [INFO] [stderr] Adding parking_lot_core v0.8.6 (available: v0.9.10) [INFO] [stderr] Adding redox_syscall v0.2.16 (available: v0.5.6) [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 91eef581063e2cdacfb68978260b0800615caef7ac77edb75c5f0f5c83e413c3 [INFO] running `Command { std: "docker" "start" "-a" "91eef581063e2cdacfb68978260b0800615caef7ac77edb75c5f0f5c83e413c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "91eef581063e2cdacfb68978260b0800615caef7ac77edb75c5f0f5c83e413c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91eef581063e2cdacfb68978260b0800615caef7ac77edb75c5f0f5c83e413c3", kill_on_drop: false }` [INFO] [stdout] 91eef581063e2cdacfb68978260b0800615caef7ac77edb75c5f0f5c83e413c3 [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b64a279640bde2c226c3c4eb0374a67c548066b8232b317cadf26360629f8a83 [INFO] running `Command { std: "docker" "start" "-a" "b64a279640bde2c226c3c4eb0374a67c548066b8232b317cadf26360629f8a83", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking owning_ref v0.4.1 [INFO] [stderr] Checking instant v0.1.13 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking chashmap-next v2.2.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:466:21 [INFO] [stdout] | [INFO] [stdout] 466 | let mut bucket = self.scan_mut_no_lock(&key, |x| match *x { [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `ReadGuard<'_, i32, i32, RandomState>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/tests.rs:621:14 [INFO] [stdout] | [INFO] [stdout] 618 | let lock = m.get(&1); [INFO] [stdout] | ---- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 621 | Some(v) => assert_eq!(*v, 2) [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: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:466:21 [INFO] [stdout] | [INFO] [stdout] 466 | let mut bucket = self.scan_mut_no_lock(&key, |x| match *x { [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] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `chashmap-next` (lib test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "b64a279640bde2c226c3c4eb0374a67c548066b8232b317cadf26360629f8a83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b64a279640bde2c226c3c4eb0374a67c548066b8232b317cadf26360629f8a83", kill_on_drop: false }` [INFO] [stdout] b64a279640bde2c226c3c4eb0374a67c548066b8232b317cadf26360629f8a83