[INFO] fetching crate epoll-rs 0.2.2... [INFO] checking epoll-rs-0.2.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate epoll-rs 0.2.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate epoll-rs 0.2.2 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate epoll-rs 0.2.2 [INFO] finished tweaking crates.io crate epoll-rs 0.2.2 [INFO] tweaked toml for crates.io crate epoll-rs 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate epoll-rs 0.2.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 02144ff916dd0563d873be6a8e31d99a5eb4c2238924a5364b7e56cb5c9a30a5 [INFO] running `Command { std: "docker" "start" "-a" "02144ff916dd0563d873be6a8e31d99a5eb4c2238924a5364b7e56cb5c9a30a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "02144ff916dd0563d873be6a8e31d99a5eb4c2238924a5364b7e56cb5c9a30a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02144ff916dd0563d873be6a8e31d99a5eb4c2238924a5364b7e56cb5c9a30a5", kill_on_drop: false }` [INFO] [stdout] 02144ff916dd0563d873be6a8e31d99a5eb4c2238924a5364b7e56cb5c9a30a5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6e1e2f78e1c60fbb9f063e8f61b621377baf5d644d7540a96349fde64f83c086 [INFO] running `Command { std: "docker" "start" "-a" "6e1e2f78e1c60fbb9f063e8f61b621377baf5d644d7540a96349fde64f83c086", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking epoll-rs v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `debug_assert` [INFO] [stdout] --> src/lib.rs:217:15 [INFO] [stdout] | [INFO] [stdout] 217 | #[cfg(debug_assert)] [INFO] [stdout] | ^^^^^^^^^^^^ help: there is a config with a similar name: `debug_assertions` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug_assert)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug_assert)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stdout] warning: field `epoll_fd` is never read [INFO] [stdout] --> src/lib.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct Token<'a, F: OwnedRawFd> { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 53 | epoll_fd: RawFd, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:371:12 [INFO] [stdout] | [INFO] [stdout] 354 | token: Token<'a, F>, [INFO] [stdout] | ------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 371 | Ok(token.into_file()) [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `epoll-rs` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "6e1e2f78e1c60fbb9f063e8f61b621377baf5d644d7540a96349fde64f83c086", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e1e2f78e1c60fbb9f063e8f61b621377baf5d644d7540a96349fde64f83c086", kill_on_drop: false }` [INFO] [stdout] 6e1e2f78e1c60fbb9f063e8f61b621377baf5d644d7540a96349fde64f83c086