[INFO] fetching crate blackhole 0.20.2... [INFO] checking blackhole-0.20.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate blackhole 0.20.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate blackhole 0.20.2 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 blackhole 0.20.2 [INFO] finished tweaking crates.io crate blackhole 0.20.2 [INFO] tweaked toml for crates.io crate blackhole 0.20.2 written to /workspace/builds/worker-1-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] 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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2540ad97f695c9e81c0a00d886c2942e345360de069c99d753bfab2e91297b2f [INFO] running `Command { std: "docker" "start" "-a" "2540ad97f695c9e81c0a00d886c2942e345360de069c99d753bfab2e91297b2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2540ad97f695c9e81c0a00d886c2942e345360de069c99d753bfab2e91297b2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2540ad97f695c9e81c0a00d886c2942e345360de069c99d753bfab2e91297b2f", kill_on_drop: false }` [INFO] [stdout] 2540ad97f695c9e81c0a00d886c2942e345360de069c99d753bfab2e91297b2f [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0f615ec2aceb74b89753150900dfe14a15f9027146cd080be0c37445415682b9 [INFO] running `Command { std: "docker" "start" "-a" "0f615ec2aceb74b89753150900dfe14a15f9027146cd080be0c37445415682b9", kill_on_drop: false }` [INFO] [stderr] Checking blackhole v0.20.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `8` [INFO] [stdout] --> src/root.rs:149:25 [INFO] [stdout] | [INFO] [stdout] 149 | if cfg!(not(any(target_pointer_width="8", target_pointer_width="16"))) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `target_pointer_width` are: `16`, `32`, and `64` [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] [stdout] warning: unexpected `cfg` condition value: `8` [INFO] [stdout] --> src/root.rs:149:25 [INFO] [stdout] | [INFO] [stdout] 149 | if cfg!(not(any(target_pointer_width="8", target_pointer_width="16"))) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `target_pointer_width` are: `16`, `32`, and `64` [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] [stdout] error: this value of type `std::result::Result<(), std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/io.rs:38:23 [INFO] [stdout] | [INFO] [stdout] 35 | pub (crate) fn lock_write_err(bytes: B) where B: AsRef<[u8]> { [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 36 | let stderr = io::stderr(); [INFO] [stdout] 37 | let mut stderr = stderr.lock(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 38 | if let Err(err) = (|| { [INFO] [stdout] | _______________________^ [INFO] [stdout] 39 | | stderr.write_all(bytes.as_ref())?; [INFO] [stdout] 40 | | stderr.flush() [INFO] [stdout] 41 | | })() { [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: this value of type `std::result::Result<(), std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/io.rs:38:23 [INFO] [stdout] | [INFO] [stdout] 35 | pub (crate) fn lock_write_err(bytes: B) where B: AsRef<[u8]> { [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 36 | let stderr = io::stderr(); [INFO] [stdout] 37 | let mut stderr = stderr.lock(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 38 | if let Err(err) = (|| { [INFO] [stdout] | _______________________^ [INFO] [stdout] 39 | | stderr.write_all(bytes.as_ref())?; [INFO] [stdout] 40 | | stderr.flush() [INFO] [stdout] 41 | | })() { [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: this value of type `std::result::Result<(), TrySendError>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/root.rs:168:15 [INFO] [stdout] | [INFO] [stdout] 167 | let (sender, receiver) = mpsc::channel(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 168 | match self.job_sender.try_send(Msg::NewJob { job, sender }) { [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: this value of type `std::result::Result<(), SendError>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/root.rs:189:15 [INFO] [stdout] | [INFO] [stdout] 188 | pub fn escape_on_idle(self) -> Result<()> { [INFO] [stdout] | ---- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 189 | match self.job_sender.send(Msg::StopJobManagerOnIdle) { [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: this value of type `std::result::Result<(), TrySendError>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/root.rs:168:15 [INFO] [stdout] | [INFO] [stdout] 167 | let (sender, receiver) = mpsc::channel(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 168 | match self.job_sender.try_send(Msg::NewJob { job, sender }) { [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: this value of type `std::result::Result<(), SendError>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/root.rs:189:15 [INFO] [stdout] | [INFO] [stdout] 188 | pub fn escape_on_idle(self) -> Result<()> { [INFO] [stdout] | ---- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 189 | match self.job_sender.send(Msg::StopJobManagerOnIdle) { [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: this value of type `std::result::Result<(), SendError>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/root.rs:300:27 [INFO] [stdout] | [INFO] [stdout] 283 | let (sender, receiver) = mpsc::channel(); [INFO] [stdout] | ------ -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 300 | if let Err(err) = job_manager_sender.send(Msg::JobFinished { handle }) { [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: this value of type `std::result::Result<(), SendError>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/root.rs:300:27 [INFO] [stdout] | [INFO] [stdout] 283 | let (sender, receiver) = mpsc::channel(); [INFO] [stdout] | ------ -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 300 | if let Err(err) = job_manager_sender.send(Msg::JobFinished { handle }) { [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 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `blackhole` (lib) due to 5 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `blackhole` (lib test) due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "0f615ec2aceb74b89753150900dfe14a15f9027146cd080be0c37445415682b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f615ec2aceb74b89753150900dfe14a15f9027146cd080be0c37445415682b9", kill_on_drop: false }` [INFO] [stdout] 0f615ec2aceb74b89753150900dfe14a15f9027146cd080be0c37445415682b9