[INFO] cloning repository https://github.com/Angael/rust-async-test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Angael/rust-async-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngael%2Frust-async-test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngael%2Frust-async-test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 675727cd9c3c78d0c7d8c02c819f0f888f44d9e0 [INFO] checking Angael/rust-async-test/675727cd9c3c78d0c7d8c02c819f0f888f44d9e0 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%2FAngael%2Frust-async-test" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Angael/rust-async-test 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/Angael/rust-async-test [INFO] finished tweaking git repo https://github.com/Angael/rust-async-test [INFO] tweaked toml for git repo https://github.com/Angael/rust-async-test written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Angael/rust-async-test 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 328a9f05b987ff818ce5ac6d928de74fc044091856c089b80ffa40048d65f8e2 [INFO] running `Command { std: "docker" "start" "-a" "328a9f05b987ff818ce5ac6d928de74fc044091856c089b80ffa40048d65f8e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "328a9f05b987ff818ce5ac6d928de74fc044091856c089b80ffa40048d65f8e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "328a9f05b987ff818ce5ac6d928de74fc044091856c089b80ffa40048d65f8e2", kill_on_drop: false }` [INFO] [stdout] 328a9f05b987ff818ce5ac6d928de74fc044091856c089b80ffa40048d65f8e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 546e9de1ec9721e11e2b17918b300e388113267e9df15f9283fe5d67c2b1d267 [INFO] running `Command { std: "docker" "start" "-a" "546e9de1ec9721e11e2b17918b300e388113267e9df15f9283fe5d67c2b1d267", kill_on_drop: false }` [INFO] [stderr] Checking async-test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> src/examples/custom_structs.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `to_hex`, and `contrast` are never used [INFO] [stdout] --> src/examples/custom_structs.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Color { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 9 | fn new(red: u8, green: u8, blue: u8) -> Color { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | fn to_hex(&self) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | fn contrast(&self, other: &Color) -> u8 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/examples/smart_pointers.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | Cons(Box), [INFO] [stdout] | ---- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | Cons(()), [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/examples/many_threads.rs:44:44 [INFO] [stdout] | [INFO] [stdout] 43 | let responses = Arc::clone(&responses); [INFO] [stdout] | --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 44 | handles.push(thread::spawn(move || responses.lock().unwrap().push(i))); [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/examples/smart_pointers.rs:34:33 [INFO] [stdout] | [INFO] [stdout] 33 | fn new(x: T) -> StructWithDeref { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 34 | StructWithDeref { data: Box::new(x) } [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> src/examples/custom_structs.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `to_hex`, and `contrast` are never used [INFO] [stdout] --> src/examples/custom_structs.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Color { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 9 | fn new(red: u8, green: u8, blue: u8) -> Color { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | fn to_hex(&self) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | fn contrast(&self, other: &Color) -> u8 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/examples/smart_pointers.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | Cons(Box), [INFO] [stdout] | ---- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | Cons(()), [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/examples/many_threads.rs:44:44 [INFO] [stdout] | [INFO] [stdout] 43 | let responses = Arc::clone(&responses); [INFO] [stdout] | --------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 44 | handles.push(thread::spawn(move || responses.lock().unwrap().push(i))); [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] [stderr] error: could not compile `async-test` (bin "async-test" test) due to 3 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/examples/smart_pointers.rs:34:33 [INFO] [stdout] | [INFO] [stdout] 33 | fn new(x: T) -> StructWithDeref { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 34 | StructWithDeref { data: Box::new(x) } [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `async-test` (bin "async-test") due to 3 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "546e9de1ec9721e11e2b17918b300e388113267e9df15f9283fe5d67c2b1d267", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "546e9de1ec9721e11e2b17918b300e388113267e9df15f9283fe5d67c2b1d267", kill_on_drop: false }` [INFO] [stdout] 546e9de1ec9721e11e2b17918b300e388113267e9df15f9283fe5d67c2b1d267