[INFO] fetching crate timeout-readwrite 0.3.3... [INFO] checking timeout-readwrite-0.3.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate timeout-readwrite 0.3.3 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate timeout-readwrite 0.3.3 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 timeout-readwrite 0.3.3 [INFO] finished tweaking crates.io crate timeout-readwrite 0.3.3 [INFO] tweaked toml for crates.io crate timeout-readwrite 0.3.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate timeout-readwrite 0.3.3 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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 51f8dd42b7e4891599e5d447b93b787b6a4437f40639ae9bf5752ea201524d3a [INFO] running `Command { std: "docker" "start" "-a" "51f8dd42b7e4891599e5d447b93b787b6a4437f40639ae9bf5752ea201524d3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51f8dd42b7e4891599e5d447b93b787b6a4437f40639ae9bf5752ea201524d3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51f8dd42b7e4891599e5d447b93b787b6a4437f40639ae9bf5752ea201524d3a", kill_on_drop: false }` [INFO] [stdout] 51f8dd42b7e4891599e5d447b93b787b6a4437f40639ae9bf5752ea201524d3a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4ba71c5198b34d8efc7bb62d9b4e6617a50fe9a3d47d215191ba6fd6202a1fc6 [INFO] running `Command { std: "docker" "start" "-a" "4ba71c5198b34d8efc7bb62d9b4e6617a50fe9a3d47d215191ba6fd6202a1fc6", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking nix v0.26.1 [INFO] [stderr] Checking timeout-readwrite v0.3.3 (/opt/rustwide/workdir) [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] --> examples/process.rs:35:15 [INFO] [stdout] | [INFO] [stdout] 21 | fn do_command>(mut args: I) -> Result<()> { [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 22 | let cmd = args.next().expect("did not pass a program"); [INFO] [stdout] 23 | let mut cmd = process::Command::new(cmd); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 28 | let child = cmd [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 34 | let stdout = child.stdout.expect("stdout must be there"); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 35 | each_line(BufReader::new(stdout.with_timeout(Duration::new(5, 0)))) [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 `timeout-readwrite` (example "process") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "4ba71c5198b34d8efc7bb62d9b4e6617a50fe9a3d47d215191ba6fd6202a1fc6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ba71c5198b34d8efc7bb62d9b4e6617a50fe9a3d47d215191ba6fd6202a1fc6", kill_on_drop: false }` [INFO] [stdout] 4ba71c5198b34d8efc7bb62d9b4e6617a50fe9a3d47d215191ba6fd6202a1fc6