[INFO] fetching crate fp-collections 0.0.2...
[INFO] checking fp-collections-0.0.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate fp-collections 0.0.2 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate fp-collections 0.0.2 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 fp-collections 0.0.2
[INFO] finished tweaking crates.io crate fp-collections 0.0.2
[INFO] tweaked toml for crates.io crate fp-collections 0.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate fp-collections 0.0.2 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" "+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] 6b581591e900f21d6e3942e771470427b82b9cb0320f82b0f1e3b86588d2b28c
[INFO] running `Command { std: "docker" "start" "-a" "6b581591e900f21d6e3942e771470427b82b9cb0320f82b0f1e3b86588d2b28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b581591e900f21d6e3942e771470427b82b9cb0320f82b0f1e3b86588d2b28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b581591e900f21d6e3942e771470427b82b9cb0320f82b0f1e3b86588d2b28c", kill_on_drop: false }`
[INFO] [stdout] 6b581591e900f21d6e3942e771470427b82b9cb0320f82b0f1e3b86588d2b28c
[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] 1ea8eff4568feb18e808581b1e73fb25fd48572bcb8f3e9f653c9281c2a27d94
[INFO] running `Command { std: "docker" "start" "-a" "1ea8eff4568feb18e808581b1e73fb25fd48572bcb8f3e9f653c9281c2a27d94", kill_on_drop: false }`
[INFO] [stderr]     Checking fp-collections v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/list.rs:55:10
[INFO] [stdout]    |
[INFO] [stdout] 55 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/list.rs:122:10
[INFO] [stdout]     |
[INFO] [stdout] 122 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/list.rs:219:10
[INFO] [stdout]     |
[INFO] [stdout] 219 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/list.rs:55:10
[INFO] [stdout]    |
[INFO] [stdout] 55 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/set.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/list.rs:122:10
[INFO] [stdout]     |
[INFO] [stdout] 122 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/list.rs:219:10
[INFO] [stdout]     |
[INFO] [stdout] 219 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/set.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `List<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/list.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let l1 = self.clone().chop(ln / 2);
[INFO] [stdout]     |             -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 194 |         let l2 = self.clone().reverse().chop(ln - (ln / 2));
[INFO] [stdout]     |             -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 195 |         l1.sort_by(cmpfn).merge(cmpfn, &l2.sort_by(cmpfn))
[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 `List<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/list.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let l1 = self.clone().chop(ln / 2);
[INFO] [stdout]     |             -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 194 |         let l2 = self.clone().reverse().chop(ln - (ln / 2));
[INFO] [stdout]     |             -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 195 |         l1.sort_by(cmpfn).merge(cmpfn, &l2.sort_by(cmpfn))
[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 `Set<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/set.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn add(self, x: T) -> Self {
[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] 49 |         match self.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 `Set<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/set.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn add(self, x: T) -> Self {
[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] 49 |         match self.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 `Set<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/set.rs:133:15
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn balance(parent: Set<T>, node: Set<T>) -> Self {
[INFO] [stdout]     |                                ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 133 |         match parent.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 `Set<T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/set.rs:133:15
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn balance(parent: Set<T>, node: Set<T>) -> Self {
[INFO] [stdout]     |                                ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 133 |         match parent.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: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fp-collections` (lib test) due to 4 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fp-collections` (lib) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1ea8eff4568feb18e808581b1e73fb25fd48572bcb8f3e9f653c9281c2a27d94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ea8eff4568feb18e808581b1e73fb25fd48572bcb8f3e9f653c9281c2a27d94", kill_on_drop: false }`
[INFO] [stdout] 1ea8eff4568feb18e808581b1e73fb25fd48572bcb8f3e9f653c9281c2a27d94