[INFO] fetching crate utf8-io 0.19.1... [INFO] checking utf8-io-0.19.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate utf8-io 0.19.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate utf8-io 0.19.1 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 utf8-io 0.19.1 [INFO] finished tweaking crates.io crate utf8-io 0.19.1 [INFO] tweaked toml for crates.io crate utf8-io 0.19.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate utf8-io 0.19.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] babcd4d9448c5db07af27232f530dc2e1925321982c3ccd67287c468d398cbc3 [INFO] running `Command { std: "docker" "start" "-a" "babcd4d9448c5db07af27232f530dc2e1925321982c3ccd67287c468d398cbc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "babcd4d9448c5db07af27232f530dc2e1925321982c3ccd67287c468d398cbc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "babcd4d9448c5db07af27232f530dc2e1925321982c3ccd67287c468d398cbc3", kill_on_drop: false }` [INFO] [stdout] babcd4d9448c5db07af27232f530dc2e1925321982c3ccd67287c468d398cbc3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e8cf89c732c9451b482db1e3775320b07b972c445ecee6fad214087a635667ae [INFO] running `Command { std: "docker" "start" "-a" "e8cf89c732c9451b482db1e3775320b07b972c445ecee6fad214087a635667ae", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling io-lifetimes v2.0.1 [INFO] [stderr] Compiling io-extras v0.18.0 [INFO] [stderr] Checking duplex v0.16.0 [INFO] [stderr] Compiling layered-io v0.23.0 [INFO] [stderr] Checking os_pipe v1.1.4 [INFO] [stderr] Checking utf8-io v0.19.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `inner` and `into_inner` are never used [INFO] [stdout] --> src/utf8_input.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub(crate) trait Utf8ReaderInternals: Read { [INFO] [stdout] | ------------------- methods in this trait [INFO] [stdout] 13 | fn impl_(&mut self) -> &mut Utf8Input; [INFO] [stdout] 14 | fn inner(&self) -> &Inner; [INFO] [stdout] | ^^^^^ [INFO] [stdout] 15 | fn inner_mut(&mut self) -> &mut Inner; [INFO] [stdout] 16 | fn into_inner(self) -> Inner; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `inner` is never used [INFO] [stdout] --> src/utf8_output.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 9 | pub(crate) trait Utf8WriterInternals: Write { [INFO] [stdout] | ------------------- method in this trait [INFO] [stdout] 10 | fn impl_(&mut self) -> &mut Utf8Output; [INFO] [stdout] 11 | fn inner(&self) -> &Inner; [INFO] [stdout] | ^^^^^ [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/utf8_duplexer.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn new(inner: Inner) -> Self { [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | output: Utf8Output::new(), [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/utf8_output.rs:101:12 [INFO] [stdout] | [INFO] [stdout] 98 | mut internals: impl Utf8WriterInternals, [INFO] [stdout] | ---------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 101 | Ok(internals.into_inner()) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utf8_writer.rs:41:21 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn new(inner: Inner) -> Self { [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 41 | output: Utf8Output::new(), [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 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `utf8-io` (lib) due to 4 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e8cf89c732c9451b482db1e3775320b07b972c445ecee6fad214087a635667ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8cf89c732c9451b482db1e3775320b07b972c445ecee6fad214087a635667ae", kill_on_drop: false }` [INFO] [stdout] e8cf89c732c9451b482db1e3775320b07b972c445ecee6fad214087a635667ae