[INFO] fetching crate iterator_ilp 2.1.2... [INFO] checking iterator_ilp-2.1.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate iterator_ilp 2.1.2 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate iterator_ilp 2.1.2 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 iterator_ilp 2.1.2 [INFO] finished tweaking crates.io crate iterator_ilp 2.1.2 [INFO] tweaked toml for crates.io crate iterator_ilp 2.1.2 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] Locking 96 packages to latest compatible versions [INFO] [stderr] Adding anes v0.1.6 (available: v0.2.0) [INFO] [stderr] Adding bit-set v0.5.3 (available: v0.8.0) [INFO] [stderr] Adding bit-vec v0.6.3 (available: v0.8.0) [INFO] [stderr] Adding itertools v0.10.5 (available: v0.13.0) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (available: v0.6.5) [INFO] [stderr] Adding quick-error v1.2.3 (available: v2.0.1) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [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-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] 6200a678c2c2fafd060ab281f9f3066e845cf1a4b3d2905103ea86cf4a5e93c6 [INFO] running `Command { std: "docker" "start" "-a" "6200a678c2c2fafd060ab281f9f3066e845cf1a4b3d2905103ea86cf4a5e93c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6200a678c2c2fafd060ab281f9f3066e845cf1a4b3d2905103ea86cf4a5e93c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6200a678c2c2fafd060ab281f9f3066e845cf1a4b3d2905103ea86cf4a5e93c6", kill_on_drop: false }` [INFO] [stdout] 6200a678c2c2fafd060ab281f9f3066e845cf1a4b3d2905103ea86cf4a5e93c6 [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] f927fb0d2abeb989fcb2da568bb0395d0be5180e660d5ef274dcb84191292de9 [INFO] running `Command { std: "docker" "start" "-a" "f927fb0d2abeb989fcb2da568bb0395d0be5180e660d5ef274dcb84191292de9", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Compiling target-features v0.1.6 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Compiling serde_json v1.0.128 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling pkg-config v0.3.31 [INFO] [stderr] Checking half v2.4.1 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Compiling unicode-xid v0.2.6 [INFO] [stderr] Checking clap_lex v0.7.2 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking anstyle v1.0.8 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling thiserror v1.0.64 [INFO] [stderr] Checking tempfile v3.13.0 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking clap_builder v4.5.18 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking errno v0.3.9 [INFO] [stderr] Checking is-terminal v0.4.13 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking oorandom v11.1.4 [INFO] [stderr] Checking unarray v0.1.4 [INFO] [stderr] Checking arrayvec v0.7.6 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking bit-set v0.5.3 [INFO] [stderr] Compiling hwlocality-sys v0.5.0 [INFO] [stderr] Checking iterator_ilp v2.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `Flatten>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:350:9 [INFO] [stdout] | [INFO] [stdout] 324 | mut predicate: impl FnMut(&Self::Item) -> bool, [INFO] [stdout] | ------------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 350 | iter.flatten().next() [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: this value of type `Option` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:446:37 [INFO] [stdout] | [INFO] [stdout] 445 | let mut accumulate_opt = |accumulator: &mut Option, item| { [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 446 | if let Some(prev_acc) = accumulator.take() { [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 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `iterator_ilp` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "f927fb0d2abeb989fcb2da568bb0395d0be5180e660d5ef274dcb84191292de9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f927fb0d2abeb989fcb2da568bb0395d0be5180e660d5ef274dcb84191292de9", kill_on_drop: false }` [INFO] [stdout] f927fb0d2abeb989fcb2da568bb0395d0be5180e660d5ef274dcb84191292de9