[INFO] fetching crate whitespacesv 1.0.2... [INFO] building whitespacesv-1.0.2 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate whitespacesv 1.0.2 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate whitespacesv 1.0.2 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate whitespacesv 1.0.2 [INFO] finished tweaking crates.io crate whitespacesv 1.0.2 [INFO] tweaked toml for crates.io crate whitespacesv 1.0.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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 2 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded utf8-chars v3.0.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6fc49ac08ac6c3029c76eebcf7811e92a44edcdd093425be64aeb60a9c4ac160 [INFO] running `Command { std: "docker" "start" "-a" "6fc49ac08ac6c3029c76eebcf7811e92a44edcdd093425be64aeb60a9c4ac160", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6fc49ac08ac6c3029c76eebcf7811e92a44edcdd093425be64aeb60a9c4ac160", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fc49ac08ac6c3029c76eebcf7811e92a44edcdd093425be64aeb60a9c4ac160", kill_on_drop: false }` [INFO] [stdout] 6fc49ac08ac6c3029c76eebcf7811e92a44edcdd093425be64aeb60a9c4ac160 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d9b1e18c10b9068d7a34c9541cec6da2a5d14c1e23037c88731ec23369f2e8d7 [INFO] running `Command { std: "docker" "start" "-a" "d9b1e18c10b9068d7a34c9541cec6da2a5d14c1e23037c88731ec23369f2e8d7", kill_on_drop: false }` [INFO] [stderr] Compiling whitespacesv v1.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `WSVErrorType`, `WSVLazyTokenizer`, `WSVTokenizer`, and `parse_lazy` [INFO] [stdout] --> src/lib.rs:1001:9 [INFO] [stdout] | [INFO] [stdout] 1001 | parse_lazy, OwnedWSVToken, WSVError, WSVErrorType, WSVLazyTokenizer, WSVToken, WSVTokenizer, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:999:1 [INFO] [stdout] | [INFO] [stdout] 999 | mod tests { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `WSVWriter` and `parse` [INFO] [stdout] --> src/lib.rs:1004:17 [INFO] [stdout] | [INFO] [stdout] 1004 | use super::{parse, WSVWriter}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:999:1 [INFO] [stdout] | [INFO] [stdout] 999 | mod tests { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `borrow::Cow` and `fmt::write` [INFO] [stdout] --> src/lib.rs:1005:15 [INFO] [stdout] | [INFO] [stdout] 1005 | use std::{borrow::Cow, fmt::write}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:999:1 [INFO] [stdout] | [INFO] [stdout] 999 | mod tests { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/lib.rs:340:23 [INFO] [stdout] | [INFO] [stdout] 340 | match inner_mut.next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 344 | Some(next_string_like) => match next_string_like { [INFO] [stdout] | ---------------- [INFO] [stdout] | | [INFO] [stdout] | `next_string_like` calls a custom destructor [INFO] [stdout] | `next_string_like` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 349 | Some(string_like) => { [INFO] [stdout] | ----------- [INFO] [stdout] | | [INFO] [stdout] | `string_like` calls a custom destructor [INFO] [stdout] | `string_like` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 380 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/lib.rs:382:19 [INFO] [stdout] | [INFO] [stdout] 344 | Some(next_string_like) => match next_string_like { [INFO] [stdout] | ---------------- [INFO] [stdout] | | [INFO] [stdout] | `next_string_like` calls a custom destructor [INFO] [stdout] | `next_string_like` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 349 | Some(string_like) => { [INFO] [stdout] | ----------- [INFO] [stdout] | | [INFO] [stdout] | `string_like` calls a custom destructor [INFO] [stdout] | `string_like` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 382 | match self.values.next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 391 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `whitespacesv` (lib) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d9b1e18c10b9068d7a34c9541cec6da2a5d14c1e23037c88731ec23369f2e8d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9b1e18c10b9068d7a34c9541cec6da2a5d14c1e23037c88731ec23369f2e8d7", kill_on_drop: false }` [INFO] [stdout] d9b1e18c10b9068d7a34c9541cec6da2a5d14c1e23037c88731ec23369f2e8d7