[INFO] fetching crate half_edge_mesh 1.1.8...
[INFO] checking half_edge_mesh-1.1.8 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate half_edge_mesh 1.1.8 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate half_edge_mesh 1.1.8 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 half_edge_mesh 1.1.8
[INFO] finished tweaking crates.io crate half_edge_mesh 1.1.8
[INFO] tweaked toml for crates.io crate half_edge_mesh 1.1.8 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding approx v0.1.1 (available: v0.5.1)
[INFO] [stderr]       Adding cgmath v0.16.1 (available: v0.18.0)
[INFO] [stderr]       Adding num-traits v0.1.43 (available: v0.2.19)
[INFO] [stderr]       Adding rand v0.4.6 (available: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (available: v0.8.3)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f503ac20cd83f47204f9b91661cad65823c89eb0ab6d77308b5f1c48cb09f28
[INFO] running `Command { std: "docker" "start" "-a" "9f503ac20cd83f47204f9b91661cad65823c89eb0ab6d77308b5f1c48cb09f28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f503ac20cd83f47204f9b91661cad65823c89eb0ab6d77308b5f1c48cb09f28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f503ac20cd83f47204f9b91661cad65823c89eb0ab6d77308b5f1c48cb09f28", kill_on_drop: false }`
[INFO] [stdout] 9f503ac20cd83f47204f9b91661cad65823c89eb0ab6d77308b5f1c48cb09f28
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c38cf7e4bc3fa96ab679d7226577cb6d3437b9906e7266e5a627b42fa2e3ee4
[INFO] running `Command { std: "docker" "start" "-a" "0c38cf7e4bc3fa96ab679d7226577cb6d3437b9906e7266e5a627b42fa2e3ee4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking half_edge_mesh v1.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:215:11
[INFO] [stdout]     |
[INFO] [stdout] 213 |         .map(|pair_rc: EdgeRc| {
[INFO] [stdout]     |               ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 214 |           self.current = Some(self.start.clone());
[INFO] [stdout] 215 |           pair_rc.borrow().origin.clone()
[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: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:303:11
[INFO] [stdout]     |
[INFO] [stdout] 301 |         .map(|cur_rc: EdgeRc| {
[INFO] [stdout]     |               ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 302 |           self.current = Some(self.start.clone());
[INFO] [stdout] 303 |           cur_rc.borrow().face.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:348:11
[INFO] [stdout]     |
[INFO] [stdout] 346 |         .map(|cur_rc: EdgeRc| {
[INFO] [stdout]     |               ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 347 |           self.current = Some(self.start.clone());
[INFO] [stdout] 348 |           cur_rc.borrow().origin.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:428:21
[INFO] [stdout]     |
[INFO] [stdout] 426 |                   .map(|pair_rc| {
[INFO] [stdout]     |                         ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 427 |                     self.current = Some(next_weak);
[INFO] [stdout] 428 |                     pair_rc.borrow().face.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:437:11
[INFO] [stdout]     |
[INFO] [stdout] 435 |         .map(|pair_rc: EdgeRc| {
[INFO] [stdout]     |               ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 436 |           self.current = Some(self.start.clone());
[INFO] [stdout] 437 |           pair_rc.borrow().face.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:215:11
[INFO] [stdout]     |
[INFO] [stdout] 213 |         .map(|pair_rc: EdgeRc| {
[INFO] [stdout]     |               ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 214 |           self.current = Some(self.start.clone());
[INFO] [stdout] 215 |           pair_rc.borrow().origin.clone()
[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: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:303:11
[INFO] [stdout]     |
[INFO] [stdout] 301 |         .map(|cur_rc: EdgeRc| {
[INFO] [stdout]     |               ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 302 |           self.current = Some(self.start.clone());
[INFO] [stdout] 303 |           cur_rc.borrow().face.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:348:11
[INFO] [stdout]     |
[INFO] [stdout] 346 |         .map(|cur_rc: EdgeRc| {
[INFO] [stdout]     |               ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 347 |           self.current = Some(self.start.clone());
[INFO] [stdout] 348 |           cur_rc.borrow().origin.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:428:21
[INFO] [stdout]     |
[INFO] [stdout] 426 |                   .map(|pair_rc| {
[INFO] [stdout]     |                         ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 427 |                     self.current = Some(next_weak);
[INFO] [stdout] 428 |                     pair_rc.borrow().face.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `Ref<'_, Edge>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/iterators.rs:437:11
[INFO] [stdout]     |
[INFO] [stdout] 435 |         .map(|pair_rc: EdgeRc| {
[INFO] [stdout]     |               ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 436 |           self.current = Some(self.start.clone());
[INFO] [stdout] 437 |           pair_rc.borrow().face.clone()
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]    --> src/edge.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     state.finish();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let _ = state.finish();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]   --> src/vert.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     state.finish();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let _ = state.finish();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]    --> src/face.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     state.finish();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let _ = state.finish();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `half_edge_mesh` (lib) due to 6 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]    --> src/edge.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     state.finish();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let _ = state.finish();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]   --> src/vert.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     state.finish();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let _ = state.finish();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]    --> src/face.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     state.finish();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let _ = state.finish();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `half_edge_mesh` (lib test) due to 6 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0c38cf7e4bc3fa96ab679d7226577cb6d3437b9906e7266e5a627b42fa2e3ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c38cf7e4bc3fa96ab679d7226577cb6d3437b9906e7266e5a627b42fa2e3ee4", kill_on_drop: false }`
[INFO] [stdout] 0c38cf7e4bc3fa96ab679d7226577cb6d3437b9906e7266e5a627b42fa2e3ee4