[INFO] cloning repository https://github.com/DollieSon/rust-prac [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DollieSon/rust-prac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDollieSon%2Frust-prac", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDollieSon%2Frust-prac'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f41d1aa726fbcdaf9e285ed10b9045dede399bad [INFO] checking DollieSon/rust-prac/f41d1aa726fbcdaf9e285ed10b9045dede399bad against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDollieSon%2Frust-prac" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DollieSon/rust-prac 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 git repo https://github.com/DollieSon/rust-prac [INFO] finished tweaking git repo https://github.com/DollieSon/rust-prac [INFO] tweaked toml for git repo https://github.com/DollieSon/rust-prac written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/DollieSon/rust-prac 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] d3c87a85f25a7fc08a4f2d9a37c6ecc610c21871b4c8812056b6780a89666c6a [INFO] running `Command { std: "docker" "start" "-a" "d3c87a85f25a7fc08a4f2d9a37c6ecc610c21871b4c8812056b6780a89666c6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d3c87a85f25a7fc08a4f2d9a37c6ecc610c21871b4c8812056b6780a89666c6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3c87a85f25a7fc08a4f2d9a37c6ecc610c21871b4c8812056b6780a89666c6a", kill_on_drop: false }` [INFO] [stdout] d3c87a85f25a7fc08a4f2d9a37c6ecc610c21871b4c8812056b6780a89666c6a [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] ce6ca34cf9d85ea6c0e7f34b8840b4db0584b8868984c38a0bc34fd1dc53904f [INFO] running `Command { std: "docker" "start" "-a" "ce6ca34cf9d85ea6c0e7f34b8840b4db0584b8868984c38a0bc34fd1dc53904f", kill_on_drop: false }` [INFO] [stderr] Checking prop-cal v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/trees/bin_tree.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/main.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | tree::{self, Tree}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem` [INFO] [stdout] --> src/trees/bin_tree.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::mem; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/main.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | tree::{self, Tree}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `(Option>, Option>)` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/trees/bin_tree.rs:72:15 [INFO] [stdout] | [INFO] [stdout] 57 | fn rem_node(mut curr: Box, elem: i32) -> Option> { [INFO] [stdout] | -------- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 72 | match (curr.left.take(), curr.right.take()) { [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] warning: function `test2` is never used [INFO] [stdout] --> src/main.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn test2() {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `invert_tree` and `invert_node` are never used [INFO] [stdout] --> src/trees/bin_tree.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl BinTree { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn invert_tree(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn invert_node(node: &mut Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `remove_elem`, `get_depth`, and `print` are never used [INFO] [stdout] --> src/trees/tree.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub trait Tree { [INFO] [stdout] | ---- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 4 | fn remove_elem(&mut self, elem: i32); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 5 | fn get_depth(&self) -> i32; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | fn print(&self); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `(Option>, Option>)` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/trees/bin_tree.rs:72:15 [INFO] [stdout] | [INFO] [stdout] 57 | fn rem_node(mut curr: Box, elem: i32) -> Option> { [INFO] [stdout] | -------- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 72 | match (curr.left.take(), curr.right.take()) { [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] warning: function `test2` is never used [INFO] [stdout] --> src/main.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn test2() {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `prop-cal` (bin "prop-cal" test) due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: associated items `invert_tree` and `invert_node` are never used [INFO] [stdout] --> src/trees/bin_tree.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl BinTree { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn invert_tree(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn invert_node(node: &mut Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `remove_elem`, `get_depth`, and `print` are never used [INFO] [stdout] --> src/trees/tree.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub trait Tree { [INFO] [stdout] | ---- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 4 | fn remove_elem(&mut self, elem: i32); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 5 | fn get_depth(&self) -> i32; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | fn print(&self); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `prop-cal` (bin "prop-cal") due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "ce6ca34cf9d85ea6c0e7f34b8840b4db0584b8868984c38a0bc34fd1dc53904f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce6ca34cf9d85ea6c0e7f34b8840b4db0584b8868984c38a0bc34fd1dc53904f", kill_on_drop: false }` [INFO] [stdout] ce6ca34cf9d85ea6c0e7f34b8840b4db0584b8868984c38a0bc34fd1dc53904f