[INFO] fetching crate yuuang_dominators 0.6.3... [INFO] building yuuang_dominators-0.6.3 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate yuuang_dominators 0.6.3 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate yuuang_dominators 0.6.3 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate yuuang_dominators 0.6.3 [INFO] finished tweaking crates.io crate yuuang_dominators 0.6.3 [INFO] tweaked toml for crates.io crate yuuang_dominators 0.6.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 39 packages to latest compatible versions [INFO] [stderr] Adding fixedbitset v0.4.2 (available: v0.5.7) [INFO] [stderr] Adding indexmap v1.9.3 (available: v2.7.0) [INFO] [stderr] Adding itertools v0.10.5 (available: v0.14.0) [INFO] [stderr] Adding quickcheck v0.8.5 (available: v1.0.3) [INFO] [stderr] Adding rand v0.5.6 (available: v0.8.5) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded defmac v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 95b01a62c7b8c8783346d60c7af8240976a578b12cea4123c8ded5a698a7c03f [INFO] running `Command { std: "docker" "start" "-a" "95b01a62c7b8c8783346d60c7af8240976a578b12cea4123c8ded5a698a7c03f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "95b01a62c7b8c8783346d60c7af8240976a578b12cea4123c8ded5a698a7c03f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95b01a62c7b8c8783346d60c7af8240976a578b12cea4123c8ded5a698a7c03f", kill_on_drop: false }` [INFO] [stdout] 95b01a62c7b8c8783346d60c7af8240976a578b12cea4123c8ded5a698a7c03f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aaf58dbca3d5656eacc0604a24a6b55bf0f9d470e9b00a6a422fada7f0046852 [INFO] running `Command { std: "docker" "start" "-a" "aaf58dbca3d5656eacc0604a24a6b55bf0f9d470e9b00a6a422fada7f0046852", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling fixedbitset v0.4.2 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling yuuang_dominators v0.6.3 (/opt/rustwide/workdir) [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/algo/mod.rs:724:52 [INFO] [stdout] | [INFO] [stdout] 724 | while let Some(MinScored(score, (a, b))) = self.sort_edges.pop() { [INFO] [stdout] | ----- ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] | `score` calls a custom destructor [INFO] [stdout] | `score` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 739 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/iter_utils.rs:9:39 [INFO] [stdout] | [INFO] [stdout] 8 | for elt in self { [INFO] [stdout] | ---- [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | `#1` will be dropped later as of Edition 2024 [INFO] [stdout] 9 | if let result @ Some(_) = f(elt) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#2` [INFO] [stdout] | up until Edition 2021 `#2` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 12 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `node_bound_with_dummy` is never used [INFO] [stdout] --> src/algo/matching.rs:108:8 [INFO] [stdout] | [INFO] [stdout] 106 | trait WithDummy: NodeIndexable { [INFO] [stdout] | --------- method in this trait [INFO] [stdout] 107 | fn dummy_idx(&self) -> usize; [INFO] [stdout] 108 | fn node_bound_with_dummy(&self) -> usize; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `first_error` is never read [INFO] [stdout] --> src/csr.rs:134:5 [INFO] [stdout] | [INFO] [stdout] 133 | pub struct EdgesNotSorted { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 134 | first_error: (usize, usize), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EdgesNotSorted` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `yuuang_dominators` (lib) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "aaf58dbca3d5656eacc0604a24a6b55bf0f9d470e9b00a6a422fada7f0046852", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aaf58dbca3d5656eacc0604a24a6b55bf0f9d470e9b00a6a422fada7f0046852", kill_on_drop: false }` [INFO] [stdout] aaf58dbca3d5656eacc0604a24a6b55bf0f9d470e9b00a6a422fada7f0046852