[INFO] fetching crate astack 0.3.5...
[INFO] checking astack-0.3.5 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate astack 0.3.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate astack 0.3.5 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 astack 0.3.5
[INFO] finished tweaking crates.io crate astack 0.3.5
[INFO] tweaked toml for crates.io crate astack 0.3.5 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1a0154d1600bcc355fac731d95925ccb52746448856dbadee86784e4ca32158f
[INFO] running `Command { std: "docker" "start" "-a" "1a0154d1600bcc355fac731d95925ccb52746448856dbadee86784e4ca32158f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a0154d1600bcc355fac731d95925ccb52746448856dbadee86784e4ca32158f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0154d1600bcc355fac731d95925ccb52746448856dbadee86784e4ca32158f", kill_on_drop: false }`
[INFO] [stdout] 1a0154d1600bcc355fac731d95925ccb52746448856dbadee86784e4ca32158f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] fec830553642e86e8c49d1687f05e91a8c4339b14f1ccd5850646b5afcf5d6d4
[INFO] running `Command { std: "docker" "start" "-a" "fec830553642e86e8c49d1687f05e91a8c4339b14f1ccd5850646b5afcf5d6d4", kill_on_drop: false }`
[INFO] [stderr]     Checking astack v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($_:expr,) => { 1 };
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:78:27
[INFO] [stdout]     |
[INFO] [stdout] 78  | #![warn(rust_2018_idioms, rust_2024_compatibility)]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(edition_2024_expr_fragment_specifier)]` implied by `#[warn(rust_2024_compatibility)]`
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($_:expr_2021,) => { 1 };
[INFO] [stdout]     |         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr, $($others:expr,)+) => {
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr_2021, $($others:expr,)+) => {
[INFO] [stdout]     |         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:105:25
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr, $($others:expr,)+) => {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr, $($others:expr_2021,)+) => {
[INFO] [stdout]     |                         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:172:16
[INFO] [stdout]     |
[INFO] [stdout] 172 |     ($T:ty; $N:expr) => {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 172 |     ($T:ty; $N:expr_2021) => {
[INFO] [stdout]     |                ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr] = [$($expr:expr),+ $(,)?]) => {{
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr_2021] = [$($expr:expr),+ $(,)?]) => {{
[INFO] [stdout]     |                 ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:175:34
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr] = [$($expr:expr),+ $(,)?]) => {{
[INFO] [stdout]     |                                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr] = [$($expr:expr_2021),+ $(,)?]) => {{
[INFO] [stdout]     |                                  ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($_:expr,) => { 1 };
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:78:27
[INFO] [stdout]     |
[INFO] [stdout] 78  | #![warn(rust_2018_idioms, rust_2024_compatibility)]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(edition_2024_expr_fragment_specifier)]` implied by `#[warn(rust_2024_compatibility)]`
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 104 |     ($_:expr_2021,) => { 1 };
[INFO] [stdout]     |         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr, $($others:expr,)+) => {
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr_2021, $($others:expr,)+) => {
[INFO] [stdout]     |         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:105:25
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr, $($others:expr,)+) => {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ($_:expr, $($others:expr_2021,)+) => {
[INFO] [stdout]     |                         ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:172:16
[INFO] [stdout]     |
[INFO] [stdout] 172 |     ($T:ty; $N:expr) => {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 172 |     ($T:ty; $N:expr_2021) => {
[INFO] [stdout]     |                ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr] = [$($expr:expr),+ $(,)?]) => {{
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr_2021] = [$($expr:expr),+ $(,)?]) => {{
[INFO] [stdout]     |                 ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition
[INFO] [stdout]    --> src/lib.rs:175:34
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr] = [$($expr:expr),+ $(,)?]) => {{
[INFO] [stdout]     |                                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see Migration Guide <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/macro-fragment-specifiers.html>
[INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier
[INFO] [stdout]     |
[INFO] [stdout] 175 |     ([$T:ty; $N:expr] = [$($expr:expr_2021),+ $(,)?]) => {{
[INFO] [stdout]     |                                  ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:426:67
[INFO] [stdout]     |
[INFO] [stdout] 426 |             items: core::array::from_fn(|i| mem::MaybeUninit::new(f(i))),
[INFO] [stdout]     |                                                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: `#[warn(tail_expr_drop_order)]` implied by `#[warn(rust_2024_compatibility)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/lib.rs:1189:9
[INFO] [stdout]      |
[INFO] [stdout] 1185 |     pub fn extend<I>(&mut self, items: I) -> Result<(), StackError>
[INFO] [stdout]      |                                 -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1189 |         items.into_iter().try_for_each(|item| self.push(item))
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:426:67
[INFO] [stdout]     |
[INFO] [stdout] 426 |             items: core::array::from_fn(|i| mem::MaybeUninit::new(f(i))),
[INFO] [stdout]     |                                                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: `#[warn(tail_expr_drop_order)]` implied by `#[warn(rust_2024_compatibility)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/lib.rs:1189:9
[INFO] [stdout]      |
[INFO] [stdout] 1185 |     pub fn extend<I>(&mut self, items: I) -> Result<(), StackError>
[INFO] [stdout]      |                                 -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1189 |         items.into_iter().try_for_each(|item| self.push(item))
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2024
[INFO] [stdout]      = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[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]    --> tests/tests.rs:106:22
[INFO] [stdout]     |
[INFO] [stdout] 105 |             fn new(x: T) -> Self {
[INFO] [stdout]     |                    ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 106 |                 Self(Rc::new(RefCell::new(x)))
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `astack` (test "tests") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fec830553642e86e8c49d1687f05e91a8c4339b14f1ccd5850646b5afcf5d6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fec830553642e86e8c49d1687f05e91a8c4339b14f1ccd5850646b5afcf5d6d4", kill_on_drop: false }`
[INFO] [stdout] fec830553642e86e8c49d1687f05e91a8c4339b14f1ccd5850646b5afcf5d6d4