[INFO] updating cached repository https://github.com/UsairimIsani/link [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 40f7f9892cd96cf0792ff8764d09c6b508f4417f [INFO] checking UsairimIsani/link/40f7f9892cd96cf0792ff8764d09c6b508f4417f against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsairimIsani%2Flink" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/UsairimIsani/link 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 git repo https://github.com/UsairimIsani/link [INFO] finished tweaking git repo https://github.com/UsairimIsani/link [INFO] tweaked toml for git repo https://github.com/UsairimIsani/link written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/UsairimIsani/link 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b97e5deb09ea51a5829b344822053c36f81916f6d9328866c64e4fffc1640aea [INFO] running `Command { std: "docker" "start" "-a" "b97e5deb09ea51a5829b344822053c36f81916f6d9328866c64e4fffc1640aea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b97e5deb09ea51a5829b344822053c36f81916f6d9328866c64e4fffc1640aea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b97e5deb09ea51a5829b344822053c36f81916f6d9328866c64e4fffc1640aea", kill_on_drop: false }` [INFO] [stdout] b97e5deb09ea51a5829b344822053c36f81916f6d9328866c64e4fffc1640aea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d5fa597da506e8a7a3031ac358cce36cddacc394837560d91b01d915da62a4cc [INFO] running `Command { std: "docker" "start" "-a" "d5fa597da506e8a7a3031ac358cce36cddacc394837560d91b01d915da62a4cc", kill_on_drop: false }` [INFO] [stderr] Checking link v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `type_of` is never used [INFO] [stdout] --> src/main.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn type_of(_: T) -> &'static str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/graph.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | let g: Graph = Graph::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Graph` is never constructed [INFO] [stdout] --> src/graph.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Graph { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `insert_vertex`, and `insert_edge` are never used [INFO] [stdout] --> src/graph.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 8 | / impl Graph [INFO] [stdout] 9 | | where [INFO] [stdout] 10 | | VertexId: Eq + Hash, [INFO] [stdout] 11 | | V: Hash, [INFO] [stdout] | |____________- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn insert_vertex(&mut self, vid: VertexId, vertex: V) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn insert_edge(&mut self, from: VertexId, to: VertexId, edge: E) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/tree.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `insert`, and `get_value` are never used [INFO] [stdout] --> src/tree.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl Node { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 17 | pub fn new(value: T) -> Arc { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | pub fn insert(parent: &mut Arc>, node: &mut Arc>) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn get_value(&self) -> &T { [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/tree.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn new(value: T) -> Arc { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 18 | Arc::new(Node { [INFO] [stdout] | __________________^ [INFO] [stdout] 19 | | value, [INFO] [stdout] 20 | | parent: RwLock::new(Weak::new()), [INFO] [stdout] 21 | | children: RwLock::new(Vec::new()), [INFO] [stdout] 22 | | }) [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; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `type_of` is never used [INFO] [stdout] --> src/main.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn type_of(_: T) -> &'static str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `link` (bin "link") due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: fields `vertices` and `adjacency` are never read [INFO] [stdout] --> src/graph.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Graph { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 5 | vertices: HashMap, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 6 | adjacency: HashMap>, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `insert_vertex` and `insert_edge` are never used [INFO] [stdout] --> src/graph.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 8 | / impl Graph [INFO] [stdout] 9 | | where [INFO] [stdout] 10 | | VertexId: Eq + Hash, [INFO] [stdout] 11 | | V: Hash, [INFO] [stdout] | |____________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn insert_vertex(&mut self, vid: VertexId, vertex: V) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn insert_edge(&mut self, from: VertexId, to: VertexId, edge: E) { [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/tree.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn new(value: T) -> Arc { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 18 | Arc::new(Node { [INFO] [stdout] | __________________^ [INFO] [stdout] 19 | | value, [INFO] [stdout] 20 | | parent: RwLock::new(Weak::new()), [INFO] [stdout] 21 | | children: RwLock::new(Vec::new()), [INFO] [stdout] 22 | | }) [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 `link` (bin "link" test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d5fa597da506e8a7a3031ac358cce36cddacc394837560d91b01d915da62a4cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5fa597da506e8a7a3031ac358cce36cddacc394837560d91b01d915da62a4cc", kill_on_drop: false }` [INFO] [stdout] d5fa597da506e8a7a3031ac358cce36cddacc394837560d91b01d915da62a4cc