[INFO] fetching crate arrayvec 0.7.6... [INFO] checking arrayvec-0.7.6 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate arrayvec 0.7.6 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate arrayvec 0.7.6 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 arrayvec 0.7.6 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate arrayvec 0.7.6 [INFO] tweaked toml for crates.io crate arrayvec 0.7.6 written to /workspace/builds/worker-5-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 12 packages to latest compatible versions [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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c4488379ac7f2f56db5faa48f3b0dd4d09cffa6ff356db33b321f235022def97 [INFO] running `Command { std: "docker" "start" "-a" "c4488379ac7f2f56db5faa48f3b0dd4d09cffa6ff356db33b321f235022def97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c4488379ac7f2f56db5faa48f3b0dd4d09cffa6ff356db33b321f235022def97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4488379ac7f2f56db5faa48f3b0dd4d09cffa6ff356db33b321f235022def97", kill_on_drop: false }` [INFO] [stdout] c4488379ac7f2f56db5faa48f3b0dd4d09cffa6ff356db33b321f235022def97 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] df95d517bbde6ac3b01ff83ca7592b32603f79e2da016c1941eb822b4b718cd2 [INFO] running `Command { std: "docker" "start" "-a" "df95d517bbde6ac3b01ff83ca7592b32603f79e2da016c1941eb822b4b718cd2", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Checking bencher v0.1.5 [INFO] [stderr] Checking arrayvec v0.7.6 (/opt/rustwide/workdir) [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/arrayvec.rs:1100:32 [INFO] [stdout] | [INFO] [stdout] 1091 | let mut guard = ScopeExitGuard { [INFO] [stdout] | --------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1098 | let mut iter = iterable.into_iter(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 1099 | loop { [INFO] [stdout] 1100 | if let Some(elt) = iter.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: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `arrayvec` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "df95d517bbde6ac3b01ff83ca7592b32603f79e2da016c1941eb822b4b718cd2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df95d517bbde6ac3b01ff83ca7592b32603f79e2da016c1941eb822b4b718cd2", kill_on_drop: false }` [INFO] [stdout] df95d517bbde6ac3b01ff83ca7592b32603f79e2da016c1941eb822b4b718cd2