[INFO] fetching crate flexible-locks 0.1.0... [INFO] checking flexible-locks-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate flexible-locks 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate flexible-locks 0.1.0 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 flexible-locks 0.1.0 [INFO] finished tweaking crates.io crate flexible-locks 0.1.0 [INFO] tweaked toml for crates.io crate flexible-locks 0.1.0 written to /workspace/builds/worker-3-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] [stderr] Updating crates.io index [INFO] [stderr] Locking 21 packages to latest compatible versions [INFO] [stderr] Adding owning_ref v0.3.3 (latest: v0.4.1) [INFO] [stderr] Adding parking_lot v0.5.5 (latest: v0.12.3) [INFO] [stderr] Adding parking_lot_core v0.2.14 (latest: v0.9.10) [INFO] [stderr] Adding proc-macro2 v0.3.8 (latest: v1.0.86) [INFO] [stderr] Adding quote v0.5.2 (latest: v1.0.37) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding smallvec v0.6.14 (latest: v1.13.2) [INFO] [stderr] Adding syn v0.13.11 (latest: v2.0.77) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.5) [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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 06d95b7f92d54929a659bf8d3b721714d9015c0a2d8d75cb1f84bc697645d0d3 [INFO] running `Command { std: "docker" "start" "-a" "06d95b7f92d54929a659bf8d3b721714d9015c0a2d8d75cb1f84bc697645d0d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "06d95b7f92d54929a659bf8d3b721714d9015c0a2d8d75cb1f84bc697645d0d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06d95b7f92d54929a659bf8d3b721714d9015c0a2d8d75cb1f84bc697645d0d3", kill_on_drop: false }` [INFO] [stdout] 06d95b7f92d54929a659bf8d3b721714d9015c0a2d8d75cb1f84bc697645d0d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6254f984bf4cc639ec3eb020c0fe8b2aa4a0a3b7c505c3b0ccab20f6e8c0e8df [INFO] running `Command { std: "docker" "start" "-a" "6254f984bf4cc639ec3eb020c0fe8b2aa4a0a3b7c505c3b0ccab20f6e8c0e8df", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling flexible-locks_derive v0.1.0 [INFO] [stderr] Checking flexible-locks v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `allocator_api` [INFO] [stdout] --> src/lib.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | #[cfg(feature = "allocator_api")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `parking_lot`, and `std` [INFO] [stdout] = help: consider adding `allocator_api` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/os.rs:257:56 [INFO] [stdout] | [INFO] [stdout] 257 | let mut attr: libc::pthread_mutexattr_t = mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `allocator_api` [INFO] [stdout] --> src/lib.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | #[cfg(feature = "allocator_api")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `parking_lot`, and `std` [INFO] [stdout] = help: consider adding `allocator_api` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [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/lib.rs:242:22 [INFO] [stdout] | [INFO] [stdout] 241 | fn from(t: T) -> Self { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 242 | MutexWrapper(Default::default(), t) [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/lib.rs:727:22 [INFO] [stdout] | [INFO] [stdout] 725 | pub fn new(t: T) -> Self { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 726 | MutexWrap { [INFO] [stdout] 727 | __inner: Mutex::new(MutexWrapper(Default::default(), t)), [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] warning: the type `pthread_mutexattr_t` does not permit being left uninitialized [INFO] [stdout] --> src/os.rs:257:51 [INFO] [stdout] | [INFO] [stdout] 257 | let mut attr: libc::pthread_mutexattr_t = mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/os.rs:257:56 [INFO] [stdout] | [INFO] [stdout] 257 | let mut attr: libc::pthread_mutexattr_t = mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `flexible-locks` (lib) 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/lib.rs:242:22 [INFO] [stdout] | [INFO] [stdout] 241 | fn from(t: T) -> Self { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 242 | MutexWrapper(Default::default(), t) [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/lib.rs:727:22 [INFO] [stdout] | [INFO] [stdout] 725 | pub fn new(t: T) -> Self { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 726 | MutexWrap { [INFO] [stdout] 727 | __inner: Mutex::new(MutexWrapper(Default::default(), t)), [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] warning: the type `pthread_mutexattr_t` does not permit being left uninitialized [INFO] [stdout] --> src/os.rs:257:51 [INFO] [stdout] | [INFO] [stdout] 257 | let mut attr: libc::pthread_mutexattr_t = mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [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/lib.rs:1011:21 [INFO] [stdout] | [INFO] [stdout] 1010 | |m: Mutex<_>| assert_eq!( [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 1011 | m.into_inner(), [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: 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:1012:21 [INFO] [stdout] | [INFO] [stdout] 1010 | |m: Mutex<_>| assert_eq!( [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 1011 | m.into_inner(), [INFO] [stdout] 1012 | WithEmbeddedMutex(42, Box::new(FakeMutex), 42) [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 4 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `flexible-locks` (lib test) due to 5 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "6254f984bf4cc639ec3eb020c0fe8b2aa4a0a3b7c505c3b0ccab20f6e8c0e8df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6254f984bf4cc639ec3eb020c0fe8b2aa4a0a3b7c505c3b0ccab20f6e8c0e8df", kill_on_drop: false }` [INFO] [stdout] 6254f984bf4cc639ec3eb020c0fe8b2aa4a0a3b7c505c3b0ccab20f6e8c0e8df