[INFO] fetching crate rscontainer 0.1.0...
[INFO] checking rscontainer-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate rscontainer 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rscontainer 0.1.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rscontainer 0.1.0
[INFO] finished tweaking crates.io crate rscontainer 0.1.0
[INFO] tweaked toml for crates.io crate rscontainer 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d76791afae9480d73947c06016b95cdeebfaef66d1d7ead25e999b6a02c12e2
[INFO] running `Command { std: "docker" "start" "-a" "1d76791afae9480d73947c06016b95cdeebfaef66d1d7ead25e999b6a02c12e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d76791afae9480d73947c06016b95cdeebfaef66d1d7ead25e999b6a02c12e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d76791afae9480d73947c06016b95cdeebfaef66d1d7ead25e999b6a02c12e2", kill_on_drop: false }`
[INFO] [stdout] 1d76791afae9480d73947c06016b95cdeebfaef66d1d7ead25e999b6a02c12e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c29356e4697efadaaeddbfc8c2a667a6db0a94ad4a23b7675811e93aaa823a4
[INFO] running `Command { std: "docker" "start" "-a" "6c29356e4697efadaaeddbfc8c2a667a6db0a94ad4a23b7675811e93aaa823a4", kill_on_drop: false }`
[INFO] [stderr]     Checking rscontainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Result<Ref<'_, T>, BorrowError>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:238:15
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn try_access<U, F: FnOnce(Poisoning<&Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                       - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 238 |         match self.try_borrow() {
[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: this value of type `Result<MutexGuard<'_, T>, TryLockError<MutexGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:265:15
[INFO] [stdout]     |
[INFO] [stdout] 264 |     fn try_access<U, F: FnOnce(Poisoning<&Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                       - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 265 |         match self.try_lock() {
[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] error: this value of type `Result<RwLockReadGuard<'_, T>, TryLockError<RwLockReadGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:284:15
[INFO] [stdout]     |
[INFO] [stdout] 283 |     fn try_access<U, F: FnOnce(Poisoning<&Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                       - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 284 |         match self.try_read() {
[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] error: this value of type `Result<RefMut<'_, T>, BorrowMutError>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:329:15
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn try_access_mut<U, F: FnOnce(Poisoning<&mut Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                               - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 329 |         match self.try_borrow_mut() {
[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] error: this value of type `Result<MutexGuard<'_, T>, TryLockError<MutexGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:358:15
[INFO] [stdout]     |
[INFO] [stdout] 357 |     fn try_access_mut<U, F: FnOnce(Poisoning<&mut Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                               - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 358 |         match self.try_lock() {
[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] error: this value of type `Result<RwLockWriteGuard<'_, T>, TryLockError<RwLockWriteGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:377:15
[INFO] [stdout]     |
[INFO] [stdout] 376 |     fn try_access_mut<U, F: FnOnce(Poisoning<&mut Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                               - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 377 |         match self.try_write() {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut entry = self.entry(TypeId::of::<S>());
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rscontainer` (lib) due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this value of type `Result<Ref<'_, T>, BorrowError>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:238:15
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn try_access<U, F: FnOnce(Poisoning<&Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                       - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 238 |         match self.try_borrow() {
[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: this value of type `Result<MutexGuard<'_, T>, TryLockError<MutexGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:265:15
[INFO] [stdout]     |
[INFO] [stdout] 264 |     fn try_access<U, F: FnOnce(Poisoning<&Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                       - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 265 |         match self.try_lock() {
[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] error: this value of type `Result<RwLockReadGuard<'_, T>, TryLockError<RwLockReadGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:284:15
[INFO] [stdout]     |
[INFO] [stdout] 283 |     fn try_access<U, F: FnOnce(Poisoning<&Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                       - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 284 |         match self.try_read() {
[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] error: this value of type `Result<RefMut<'_, T>, BorrowMutError>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:329:15
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn try_access_mut<U, F: FnOnce(Poisoning<&mut Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                               - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 329 |         match self.try_borrow_mut() {
[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] error: this value of type `Result<MutexGuard<'_, T>, TryLockError<MutexGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:358:15
[INFO] [stdout]     |
[INFO] [stdout] 357 |     fn try_access_mut<U, F: FnOnce(Poisoning<&mut Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                               - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 358 |         match self.try_lock() {
[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] error: this value of type `Result<RwLockWriteGuard<'_, T>, TryLockError<RwLockWriteGuard<'_, T>>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/access.rs:377:15
[INFO] [stdout]     |
[INFO] [stdout] 376 |     fn try_access_mut<U, F: FnOnce(Poisoning<&mut Self::Target>) -> U>(&self, f: F) -> Option<U> {
[INFO] [stdout]     |                                                                               - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 377 |         match self.try_write() {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut entry = self.entry(TypeId::of::<S>());
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rscontainer` (lib test) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6c29356e4697efadaaeddbfc8c2a667a6db0a94ad4a23b7675811e93aaa823a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c29356e4697efadaaeddbfc8c2a667a6db0a94ad4a23b7675811e93aaa823a4", kill_on_drop: false }`
[INFO] [stdout] 6c29356e4697efadaaeddbfc8c2a667a6db0a94ad4a23b7675811e93aaa823a4