[INFO] fetching crate ctcore 0.2.0... [INFO] building ctcore-0.2.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate ctcore 0.2.0 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate ctcore 0.2.0 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml [INFO] started tweaking crates.io crate ctcore 0.2.0 [INFO] finished tweaking crates.io crate ctcore 0.2.0 [INFO] tweaked toml for crates.io crate ctcore 0.2.0 written to /workspace/builds/worker-3-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] Updating crates.io index [INFO] [stderr] Locking 3 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d7f1de2d301f6e748ec71a43120c8cd2e7f4b656f05c9b9abeb806aad0d45e72 [INFO] running `Command { std: "docker" "start" "-a" "d7f1de2d301f6e748ec71a43120c8cd2e7f4b656f05c9b9abeb806aad0d45e72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d7f1de2d301f6e748ec71a43120c8cd2e7f4b656f05c9b9abeb806aad0d45e72", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7f1de2d301f6e748ec71a43120c8cd2e7f4b656f05c9b9abeb806aad0d45e72", kill_on_drop: false }` [INFO] [stdout] d7f1de2d301f6e748ec71a43120c8cd2e7f4b656f05c9b9abeb806aad0d45e72 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3c25dd66d1fda9a81e5a27428ff0cbc6339801b05ffd90145d748a656b5bc180 [INFO] running `Command { std: "docker" "start" "-a" "3c25dd66d1fda9a81e5a27428ff0cbc6339801b05ffd90145d748a656b5bc180", kill_on_drop: false }` [INFO] [stderr] Compiling ctcore v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/read/reader.rs:48:35 [INFO] [stdout] | [INFO] [stdout] 37 | mut target: Target, [INFO] [stdout] | ---------- [INFO] [stdout] | | [INFO] [stdout] | `target` calls a custom destructor [INFO] [stdout] | `target` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | match builder.push(printable) { [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] 64 | } [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] [stderr] error: could not compile `ctcore` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "3c25dd66d1fda9a81e5a27428ff0cbc6339801b05ffd90145d748a656b5bc180", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c25dd66d1fda9a81e5a27428ff0cbc6339801b05ffd90145d748a656b5bc180", kill_on_drop: false }` [INFO] [stdout] 3c25dd66d1fda9a81e5a27428ff0cbc6339801b05ffd90145d748a656b5bc180