[INFO] fetching crate dart_port 0.0.1...
[INFO] checking dart_port-0.0.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate dart_port 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate dart_port 0.0.1 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 dart_port 0.0.1
[INFO] finished tweaking crates.io crate dart_port 0.0.1
[INFO] tweaked toml for crates.io crate dart_port 0.0.1 written to /workspace/builds/worker-4-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]      Locking 9 packages to latest compatible versions
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2abd49ecf4f9f870f06e558a0e07edd4d82ea9c67e707909077c1b7387646bdc
[INFO] running `Command { std: "docker" "start" "-a" "2abd49ecf4f9f870f06e558a0e07edd4d82ea9c67e707909077c1b7387646bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2abd49ecf4f9f870f06e558a0e07edd4d82ea9c67e707909077c1b7387646bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abd49ecf4f9f870f06e558a0e07edd4d82ea9c67e707909077c1b7387646bdc", kill_on_drop: false }`
[INFO] [stdout] 2abd49ecf4f9f870f06e558a0e07edd4d82ea9c67e707909077c1b7387646bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 44e094c48c95a8e18145883fe36c3b0cda84507abb7ee6bebd4fbb3982ccbbbb
[INFO] running `Command { std: "docker" "start" "-a" "44e094c48c95a8e18145883fe36c3b0cda84507abb7ee6bebd4fbb3982ccbbbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling dart-sys v4.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking dart_port v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `CString` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/port.rs:141:14
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn post_string(&self, value: impl AsRef<str>) -> Result<()> {
[INFO] [stdout]     |                           ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 140 |         self.post_cstring(
[INFO] [stdout] 141 |             &CString::new(value.as_ref()).expect("string must not contain embedded NULs"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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] [stdout] error: this value of type `CString` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/port.rs:141:14
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn post_string(&self, value: impl AsRef<str>) -> Result<()> {
[INFO] [stdout]     |                           ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 140 |         self.post_cstring(
[INFO] [stdout] 141 |             &CString::new(value.as_ref()).expect("string must not contain embedded NULs"),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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 `dart_port` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `dart_port` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "44e094c48c95a8e18145883fe36c3b0cda84507abb7ee6bebd4fbb3982ccbbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e094c48c95a8e18145883fe36c3b0cda84507abb7ee6bebd4fbb3982ccbbbb", kill_on_drop: false }`
[INFO] [stdout] 44e094c48c95a8e18145883fe36c3b0cda84507abb7ee6bebd4fbb3982ccbbbb