[INFO] fetching crate libcnb-test 0.23.0... [INFO] checking libcnb-test-0.23.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate libcnb-test 0.23.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate libcnb-test 0.23.0 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 libcnb-test 0.23.0 [INFO] finished tweaking crates.io crate libcnb-test 0.23.0 [INFO] tweaked toml for crates.io crate libcnb-test 0.23.0 written to /workspace/builds/worker-6-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 87 packages to latest compatible versions [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 fixedbitset v0.4.2 (available: v0.5.7) [INFO] [stderr] Adding idna v0.5.0 (available: v1.0.2) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (available: v0.6.5) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [INFO] [stderr] Adding winsafe v0.0.19 (available: v0.0.22) [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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 35b29b639a771753b11d923ceb502ace7a2f50082ca5c74fc16daa4eb0a3a51a [INFO] running `Command { std: "docker" "start" "-a" "35b29b639a771753b11d923ceb502ace7a2f50082ca5c74fc16daa4eb0a3a51a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "35b29b639a771753b11d923ceb502ace7a2f50082ca5c74fc16daa4eb0a3a51a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35b29b639a771753b11d923ceb502ace7a2f50082ca5c74fc16daa4eb0a3a51a", kill_on_drop: false }` [INFO] [stdout] 35b29b639a771753b11d923ceb502ace7a2f50082ca5c74fc16daa4eb0a3a51a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f065b9a6a195cffca76b982731f4c24459cc15fa5b7259d49a13b9cc42bc1830 [INFO] running `Command { std: "docker" "start" "-a" "f065b9a6a195cffca76b982731f4c24459cc15fa5b7259d49a13b9cc42bc1830", kill_on_drop: false }` [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Compiling serde_json v1.0.128 [INFO] [stderr] Compiling camino v1.1.9 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling ryu v1.0.18 [INFO] [stderr] Checking winnow v0.6.20 [INFO] [stderr] Compiling regex-syntax v0.8.4 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking uriparse v0.6.4 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking home v0.5.9 [INFO] [stderr] Checking petgraph v0.6.5 [INFO] [stderr] Compiling indoc v2.0.5 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Checking which v6.0.3 [INFO] [stderr] Checking fs_extra v1.3.0 [INFO] [stderr] Checking ureq v2.10.1 [INFO] [stderr] Checking fancy-regex v0.13.0 [INFO] [stderr] Checking globset v0.4.15 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Checking ignore v0.4.23 [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stderr] Compiling thiserror-impl v1.0.64 [INFO] [stderr] Checking thiserror v1.0.64 [INFO] [stderr] Checking serde v1.0.210 [INFO] [stderr] Checking toml_datetime v0.6.8 [INFO] [stderr] Checking serde_spanned v0.6.8 [INFO] [stderr] Checking cargo-platform v0.1.8 [INFO] [stderr] Checking toml_edit v0.22.22 [INFO] [stderr] Checking cargo_metadata v0.18.1 [INFO] [stderr] Checking toml v0.8.19 [INFO] [stderr] Checking libcnb-common v0.23.0 [INFO] [stderr] Compiling libcnb-proc-macros v0.23.0 [INFO] [stderr] Checking libcnb-data v0.23.0 [INFO] [stderr] Checking libcnb-package v0.23.0 [INFO] [stderr] Checking libcnb v0.23.0 [INFO] [stderr] Checking libcnb-test v0.23.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `std::collections::hash_map::IntoIter` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/app.rs:96:33 [INFO] [stdout] | [INFO] [stdout] 72 | let source_app_dir = tempdir().unwrap(); [INFO] [stdout] | -------------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 94 | let temp_app_dir = super::copy_app(source_app_dir.path()).unwrap(); [INFO] [stdout] | ------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 95 | [INFO] [stdout] 96 | for (path, contents) in files { [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `libcnb-test` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "f065b9a6a195cffca76b982731f4c24459cc15fa5b7259d49a13b9cc42bc1830", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f065b9a6a195cffca76b982731f4c24459cc15fa5b7259d49a13b9cc42bc1830", kill_on_drop: false }` [INFO] [stdout] f065b9a6a195cffca76b982731f4c24459cc15fa5b7259d49a13b9cc42bc1830