[INFO] fetching crate blackhole 0.20.2... [INFO] checking blackhole-0.20.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate blackhole 0.20.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate blackhole 0.20.2 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 763bfef6db3b0170ca9d1fd02d3b61cb3e394836eecf4a9ebaa788d5b39fff1c [INFO] running `Command { std: "docker" "start" "-a" "763bfef6db3b0170ca9d1fd02d3b61cb3e394836eecf4a9ebaa788d5b39fff1c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "763bfef6db3b0170ca9d1fd02d3b61cb3e394836eecf4a9ebaa788d5b39fff1c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "763bfef6db3b0170ca9d1fd02d3b61cb3e394836eecf4a9ebaa788d5b39fff1c", kill_on_drop: false }` [INFO] [stdout] 763bfef6db3b0170ca9d1fd02d3b61cb3e394836eecf4a9ebaa788d5b39fff1c [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 73c51dd5aff4270e965930b3859b2d18cd26029bfa7557ee7d4185a3b418232a [INFO] running `Command { std: "docker" "start" "-a" "73c51dd5aff4270e965930b3859b2d18cd26029bfa7557ee7d4185a3b418232a", 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<(), 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] = 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<(), 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] = 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<(), 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 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `blackhole` (lib) due to 4 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 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "73c51dd5aff4270e965930b3859b2d18cd26029bfa7557ee7d4185a3b418232a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73c51dd5aff4270e965930b3859b2d18cd26029bfa7557ee7d4185a3b418232a", kill_on_drop: false }` [INFO] [stdout] 73c51dd5aff4270e965930b3859b2d18cd26029bfa7557ee7d4185a3b418232a