[INFO] fetching crate fb_procfs 0.8.1... [INFO] checking fb_procfs-0.8.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate fb_procfs 0.8.1 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate fb_procfs 0.8.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fb_procfs 0.8.1 [INFO] finished tweaking crates.io crate fb_procfs 0.8.1 [INFO] tweaked toml for crates.io crate fb_procfs 0.8.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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 62 packages to latest compatible versions [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding erased-serde v0.3.31 (available: v0.4.5) [INFO] [stderr] Adding hermit-abi v0.3.9 (available: v0.4.0) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (available: v0.6.5) [INFO] [stderr] Adding memoffset v0.6.5 (available: v0.9.1) [INFO] [stderr] Adding nix v0.25.1 (available: v0.29.0) [INFO] [stderr] Adding term v0.7.0 (available: v1.0.0) [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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 67238006efa068c15e364b756f603fe09df6bf1ad33738d4ead44ce35a25da42 [INFO] running `Command { std: "docker" "start" "-a" "67238006efa068c15e364b756f603fe09df6bf1ad33738d4ead44ce35a25da42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "67238006efa068c15e364b756f603fe09df6bf1ad33738d4ead44ce35a25da42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "67238006efa068c15e364b756f603fe09df6bf1ad33738d4ead44ce35a25da42", kill_on_drop: false }` [INFO] [stdout] 67238006efa068c15e364b756f603fe09df6bf1ad33738d4ead44ce35a25da42 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1364822fc2ed7a5ff085b3570e7c750ea798d229d4948b2db369aab8514249ef [INFO] running `Command { std: "docker" "start" "-a" "1364822fc2ed7a5ff085b3570e7c750ea798d229d4948b2db369aab8514249ef", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling slog v2.7.0 [INFO] [stderr] Checking powerfmt v0.2.0 [INFO] [stderr] Compiling time-core v0.1.2 [INFO] [stderr] Compiling num-conv v0.1.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking thread_local v1.1.8 [INFO] [stderr] Checking fastrand v2.1.1 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Compiling time-macros v0.2.18 [INFO] [stderr] Checking deranged v0.3.11 [INFO] [stderr] Checking rustix v0.38.37 [INFO] [stderr] Checking time v0.3.36 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking openat v0.1.21 [INFO] [stderr] Checking nix v0.25.1 [INFO] [stderr] Checking is-terminal v0.4.13 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking tempfile v3.12.0 [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 erased-serde v0.3.31 [INFO] [stderr] Checking slog-term v2.9.1 [INFO] [stderr] Checking fb_procfs v0.8.1 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `std::result::Result>, Error>, RecvTimeoutError>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:756:15 [INFO] [stdout] | [INFO] [stdout] 744 | path: P, [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 747 | let (tx, rx) = channel(); [INFO] [stdout] | -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 756 | match rx.recv_timeout(Duration::from_millis(20)) { [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 `fb_procfs` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this value of type `std::result::Result>, Error>, RecvTimeoutError>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:756:15 [INFO] [stdout] | [INFO] [stdout] 744 | path: P, [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 747 | let (tx, rx) = channel(); [INFO] [stdout] | -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 756 | match rx.recv_timeout(Duration::from_millis(20)) { [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 `fb_procfs` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "1364822fc2ed7a5ff085b3570e7c750ea798d229d4948b2db369aab8514249ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1364822fc2ed7a5ff085b3570e7c750ea798d229d4948b2db369aab8514249ef", kill_on_drop: false }` [INFO] [stdout] 1364822fc2ed7a5ff085b3570e7c750ea798d229d4948b2db369aab8514249ef