[INFO] fetching crate postcard 1.0.10... [INFO] checking postcard-1.0.10 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate postcard 1.0.10 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate postcard 1.0.10 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 postcard 1.0.10 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate postcard 1.0.10 [INFO] tweaked toml for crates.io crate postcard 1.0.10 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 35 packages to latest compatible versions [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding embedded-io v0.4.0 (available: v0.6.1) [INFO] [stderr] Adding hash32 v0.2.1 (available: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (available: v0.8.0) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [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] 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] 98ba0cfd4d4a4873dcbe77b4f021352efcf80962ef55f3ff37c193b379b38b0b [INFO] running `Command { std: "docker" "start" "-a" "98ba0cfd4d4a4873dcbe77b4f021352efcf80962ef55f3ff37c193b379b38b0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "98ba0cfd4d4a4873dcbe77b4f021352efcf80962ef55f3ff37c193b379b38b0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98ba0cfd4d4a4873dcbe77b4f021352efcf80962ef55f3ff37c193b379b38b0b", kill_on_drop: false }` [INFO] [stdout] 98ba0cfd4d4a4873dcbe77b4f021352efcf80962ef55f3ff37c193b379b38b0b [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] e61fd06ff1a99bf730d5931399500b8473f928e599b9b5acea6ebc17d6a735d9 [INFO] running `Command { std: "docker" "start" "-a" "e61fd06ff1a99bf730d5931399500b8473f928e599b9b5acea6ebc17d6a735d9", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking cobs v0.2.3 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking postcard v1.0.10 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `T` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> tests/loopback.rs:171:13 [INFO] [stdout] | [INFO] [stdout] 159 | fn test_one(data: T, ser_rep: &[u8]) [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 163 | let serialized: Vec = to_vec(&data).unwrap(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 171 | let deserialized: T = from_bytes(&x).unwrap(); [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 `postcard` (test "loopback") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e61fd06ff1a99bf730d5931399500b8473f928e599b9b5acea6ebc17d6a735d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e61fd06ff1a99bf730d5931399500b8473f928e599b9b5acea6ebc17d6a735d9", kill_on_drop: false }` [INFO] [stdout] e61fd06ff1a99bf730d5931399500b8473f928e599b9b5acea6ebc17d6a735d9