[INFO] fetching crate yason 0.0.2... [INFO] checking yason-0.0.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate yason 0.0.2 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate yason 0.0.2 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 yason 0.0.2 [INFO] finished tweaking crates.io crate yason 0.0.2 [INFO] tweaked toml for crates.io crate yason 0.0.2 written to /workspace/builds/worker-6-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 15 packages to latest compatible versions [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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c1b3f332d4533f66a36a9071fc9af504ab4db7ffd2ac350f86ae727d7a6834f9 [INFO] running `Command { std: "docker" "start" "-a" "c1b3f332d4533f66a36a9071fc9af504ab4db7ffd2ac350f86ae727d7a6834f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c1b3f332d4533f66a36a9071fc9af504ab4db7ffd2ac350f86ae727d7a6834f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1b3f332d4533f66a36a9071fc9af504ab4db7ffd2ac350f86ae727d7a6834f9", kill_on_drop: false }` [INFO] [stdout] c1b3f332d4533f66a36a9071fc9af504ab4db7ffd2ac350f86ae727d7a6834f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a12f428d4cfd65540c8c7e67656f8866f0867463713171e0206f83cf4c0c8a44 [INFO] running `Command { std: "docker" "start" "-a" "a12f428d4cfd65540c8c7e67656f8866f0867463713171e0206f83cf4c0c8a44", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Compiling serde_json v1.0.127 [INFO] [stderr] Checking stack-buf v0.1.6 [INFO] [stderr] Checking bencher v0.1.5 [INFO] [stderr] Checking decimal-rs v0.1.43 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking yason v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> src/builder/array.rs:187:21 [INFO] [stdout] | [INFO] [stdout] 187 | let bytes = Vec::try_with_capacity(DEFAULT_SIZE)?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `VecExt::try_with_capacity(...)` to keep using the current method [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] help: add `#![feature(try_with_capacity)]` to the crate attributes to enable `Vec::::try_with_capacity` [INFO] [stdout] --> src/lib.rs:181:1 [INFO] [stdout] | [INFO] [stdout] 181 + #![feature(try_with_capacity)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> src/builder/array.rs:187:21 [INFO] [stdout] | [INFO] [stdout] 187 | let bytes = Vec::try_with_capacity(DEFAULT_SIZE)?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `VecExt::try_with_capacity(...)` to keep using the current method [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] help: add `#![feature(try_with_capacity)]` to the crate attributes to enable `Vec::::try_with_capacity` [INFO] [stdout] --> src/lib.rs:181:1 [INFO] [stdout] | [INFO] [stdout] 181 + #![feature(try_with_capacity)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> src/builder/object.rs:258:21 [INFO] [stdout] | [INFO] [stdout] 258 | let bytes = Vec::try_with_capacity(DEFAULT_SIZE)?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `VecExt::try_with_capacity(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(try_with_capacity)]` to the crate attributes to enable `Vec::::try_with_capacity` [INFO] [stdout] --> src/lib.rs:181:1 [INFO] [stdout] | [INFO] [stdout] 181 + #![feature(try_with_capacity)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> src/builder/object.rs:258:21 [INFO] [stdout] | [INFO] [stdout] 258 | let bytes = Vec::try_with_capacity(DEFAULT_SIZE)?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `VecExt::try_with_capacity(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(try_with_capacity)]` to the crate attributes to enable `Vec::::try_with_capacity` [INFO] [stdout] --> src/lib.rs:181:1 [INFO] [stdout] | [INFO] [stdout] 181 + #![feature(try_with_capacity)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `push_i32` is never used [INFO] [stdout] --> src/vec.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait VecExt: Sized { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 15 | fn push_i32(&mut self, val: i32); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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/builder/array.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub(crate) fn try_new(mut bytes: B, element_count: u16, mut total_depth: Depth<'a>) -> BuildResult { [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 46 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 47 | | bytes, [INFO] [stdout] 48 | | element_count, [INFO] [stdout] 49 | | start_pos, [INFO] [stdout] ... | [INFO] [stdout] 54 | | total_nested_depth: total_depth, [INFO] [stdout] 55 | | }) [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/builder/object.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 31 | mut bytes: B, [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 55 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 56 | | bytes, [INFO] [stdout] 57 | | element_count, [INFO] [stdout] 58 | | start_pos, [INFO] [stdout] ... | [INFO] [stdout] 64 | | total_nested_depth: total_depth, [INFO] [stdout] 65 | | }) [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: method `push_i32` is never used [INFO] [stdout] --> src/vec.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait VecExt: Sized { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 15 | fn push_i32(&mut self, val: i32); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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/builder/array.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub(crate) fn try_new(mut bytes: B, element_count: u16, mut total_depth: Depth<'a>) -> BuildResult { [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 46 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 47 | | bytes, [INFO] [stdout] 48 | | element_count, [INFO] [stdout] 49 | | start_pos, [INFO] [stdout] ... | [INFO] [stdout] 54 | | total_nested_depth: total_depth, [INFO] [stdout] 55 | | }) [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/builder/object.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 31 | mut bytes: B, [INFO] [stdout] | ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 55 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 56 | | bytes, [INFO] [stdout] 57 | | element_count, [INFO] [stdout] 58 | | start_pos, [INFO] [stdout] ... | [INFO] [stdout] 64 | | total_nested_depth: total_depth, [INFO] [stdout] 65 | | }) [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] [stderr] error: could not compile `yason` (lib) due to 3 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `yason` (lib test) due to 3 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a12f428d4cfd65540c8c7e67656f8866f0867463713171e0206f83cf4c0c8a44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a12f428d4cfd65540c8c7e67656f8866f0867463713171e0206f83cf4c0c8a44", kill_on_drop: false }` [INFO] [stdout] a12f428d4cfd65540c8c7e67656f8866f0867463713171e0206f83cf4c0c8a44