[INFO] fetching crate basic_tree 0.2.5... [INFO] checking basic_tree-0.2.5 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate basic_tree 0.2.5 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate basic_tree 0.2.5 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate basic_tree 0.2.5 [INFO] finished tweaking crates.io crate basic_tree 0.2.5 [INFO] tweaked toml for crates.io crate basic_tree 0.2.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 32e08cd28c987a2786e8017b8dbaa06e93fcc843b5133228270e06619728159c [INFO] running `Command { std: "docker" "start" "-a" "32e08cd28c987a2786e8017b8dbaa06e93fcc843b5133228270e06619728159c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "32e08cd28c987a2786e8017b8dbaa06e93fcc843b5133228270e06619728159c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32e08cd28c987a2786e8017b8dbaa06e93fcc843b5133228270e06619728159c", kill_on_drop: false }` [INFO] [stdout] 32e08cd28c987a2786e8017b8dbaa06e93fcc843b5133228270e06619728159c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 902b95070044f9f5eb3dee2ba06a08ce9eccbf6953ebcd0cb41a5b7973f24c15 [INFO] running `Command { std: "docker" "start" "-a" "902b95070044f9f5eb3dee2ba06a08ce9eccbf6953ebcd0cb41a5b7973f24c15", kill_on_drop: false }` [INFO] [stderr] Checking basic_tree v0.2.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp::Eq` [INFO] [stdout] --> src/trie/word.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Eq; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::hash::Hash` [INFO] [stdout] --> src/trie/word.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::hash::Hash; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Eq` [INFO] [stdout] --> src/trie/word.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp::Eq; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::hash::Hash` [INFO] [stdout] --> src/trie/word.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::hash::Hash; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `inner` is never read [INFO] [stdout] --> src/trie/word.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct WordTrie { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 25 | inner: Rc>>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `WordTrie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_leaf` is never used [INFO] [stdout] --> src/trie/word.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 28 | impl WordTrie { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 52 | fn get_leaf(&self, words: &[String]) -> Leaf { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/trie/basic.rs:88:21 [INFO] [stdout] | [INFO] [stdout] 78 | fn find_last_node(node: Rc>>, words: &[T]) -> (usize, Rc>>) { [INFO] [stdout] | -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 79 | let mut m_node = node.clone(); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 88 | (out_index, m_node.clone()) [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: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `insert_words`, `split_words`, `insert`, and `get_leaf` are never used [INFO] [stdout] --> src/trie/word.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 28 | impl WordTrie { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 29 | fn new() -> WordTrie { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn insert_words(&self, words: &str, target: &str) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn split_words(words: &str) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn insert(&self, words: &[String], target: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | fn get_leaf(&self, words: &[String]) -> Leaf { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/trie/basic.rs:88:21 [INFO] [stdout] | [INFO] [stdout] 78 | fn find_last_node(node: Rc>>, words: &[T]) -> (usize, Rc>>) { [INFO] [stdout] | -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 79 | let mut m_node = node.clone(); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 88 | (out_index, m_node.clone()) [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: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `basic_tree` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `basic_tree` (lib) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "902b95070044f9f5eb3dee2ba06a08ce9eccbf6953ebcd0cb41a5b7973f24c15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "902b95070044f9f5eb3dee2ba06a08ce9eccbf6953ebcd0cb41a5b7973f24c15", kill_on_drop: false }` [INFO] [stdout] 902b95070044f9f5eb3dee2ba06a08ce9eccbf6953ebcd0cb41a5b7973f24c15