[INFO] fetching crate tree-flat 0.1.3... [INFO] checking tree-flat-0.1.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate tree-flat 0.1.3 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate tree-flat 0.1.3 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 tree-flat 0.1.3 [INFO] finished tweaking crates.io crate tree-flat 0.1.3 [INFO] tweaked toml for crates.io crate tree-flat 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate tree-flat 0.1.3 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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9879e91c56b9ed18b37ad9623b26b2cd086fc5447eccc2582f22f5b390b53b8c [INFO] running `Command { std: "docker" "start" "-a" "9879e91c56b9ed18b37ad9623b26b2cd086fc5447eccc2582f22f5b390b53b8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9879e91c56b9ed18b37ad9623b26b2cd086fc5447eccc2582f22f5b390b53b8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9879e91c56b9ed18b37ad9623b26b2cd086fc5447eccc2582f22f5b390b53b8c", kill_on_drop: false }` [INFO] [stdout] 9879e91c56b9ed18b37ad9623b26b2cd086fc5447eccc2582f22f5b390b53b8c [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f6cfa5c4f72fcafbb8229b7b2c2a892036eb5f570c514b3b0dc05f847b60c0af [INFO] running `Command { std: "docker" "start" "-a" "f6cfa5c4f72fcafbb8229b7b2c2a892036eb5f570c514b3b0dc05f847b60c0af", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking plotters-backend v0.3.4 [INFO] [stderr] Checking ciborium-io v0.2.0 [INFO] [stderr] Checking os_str_bytes v6.3.1 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking textwrap v0.16.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking ego-tree v0.6.2 [INFO] [stderr] Checking ciborium-ll v0.2.0 [INFO] [stderr] Checking plotters-svg v0.3.3 [INFO] [stderr] Checking tree-flat v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking clap v3.2.23 [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/tree.rs:251:28 [INFO] [stdout] | [INFO] [stdout] 244 | pub fn drain(&mut self, range: R) -> impl Iterator + '_ [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 248 | let mut data_drain = self.data.drain(range.clone()); [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 249 | let mut level_drain = self.level.drain(range.clone()); [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 250 | let mut parent_drain = self.parent.drain(range); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 251 | std::iter::from_fn(move || match data_drain.next() { [INFO] [stdout] | ____________________________^ [INFO] [stdout] 252 | | Some(data) => { [INFO] [stdout] 253 | | let level = level_drain.next().unwrap(); [INFO] [stdout] 254 | | let parent = parent_drain.next().unwrap().into(); [INFO] [stdout] ... | [INFO] [stdout] 257 | | None => None, [INFO] [stdout] 258 | | }) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/tree.rs:251:42 [INFO] [stdout] | [INFO] [stdout] 248 | let mut data_drain = self.data.drain(range.clone()); [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 249 | let mut level_drain = self.level.drain(range.clone()); [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 250 | let mut parent_drain = self.parent.drain(range); [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 251 | std::iter::from_fn(move || match data_drain.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] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tree-flat` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "f6cfa5c4f72fcafbb8229b7b2c2a892036eb5f570c514b3b0dc05f847b60c0af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6cfa5c4f72fcafbb8229b7b2c2a892036eb5f570c514b3b0dc05f847b60c0af", kill_on_drop: false }` [INFO] [stdout] f6cfa5c4f72fcafbb8229b7b2c2a892036eb5f570c514b3b0dc05f847b60c0af