[INFO] fetching crate kul_core 0.1.2... [INFO] building kul_core-0.1.2 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate kul_core 0.1.2 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate kul_core 0.1.2 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 kul_core 0.1.2 [INFO] finished tweaking crates.io crate kul_core 0.1.2 [INFO] tweaked toml for crates.io crate kul_core 0.1.2 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] 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-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] a6074e00a27567aad9c75b433093651bd204b0dc2039c64e3375c6f10dea4043 [INFO] running `Command { std: "docker" "start" "-a" "a6074e00a27567aad9c75b433093651bd204b0dc2039c64e3375c6f10dea4043", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a6074e00a27567aad9c75b433093651bd204b0dc2039c64e3375c6f10dea4043", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6074e00a27567aad9c75b433093651bd204b0dc2039c64e3375c6f10dea4043", kill_on_drop: false }` [INFO] [stdout] a6074e00a27567aad9c75b433093651bd204b0dc2039c64e3375c6f10dea4043 [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] f39ca87f8ab7bb66ecb64af9298cbe0f5bfda896cb7fcdd9f44e603aa592d033 [INFO] running `Command { std: "docker" "start" "-a" "f39ca87f8ab7bb66ecb64af9298cbe0f5bfda896cb7fcdd9f44e603aa592d033", kill_on_drop: false }` [INFO] [stderr] Compiling kul_core v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/text/iter.rs:130:39 [INFO] [stdout] | [INFO] [stdout] 130 | if let it @ Some(_) = ccss.next_accum() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#2` [INFO] [stdout] | up until Edition 2021 `#2` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 134 | self.accum = Some(self.accum.take().unwrap_or_else(TT::empty) [INFO] [stdout] | _______________________________________- [INFO] [stdout] 135 | | .concat(chunk_ended, dalloc)?); [INFO] [stdout] | | - [INFO] [stdout] | | | [INFO] [stdout] | |___________________________________________________________________this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | `#1` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 139 | } else { [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 `kul_core` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "f39ca87f8ab7bb66ecb64af9298cbe0f5bfda896cb7fcdd9f44e603aa592d033", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f39ca87f8ab7bb66ecb64af9298cbe0f5bfda896cb7fcdd9f44e603aa592d033", kill_on_drop: false }` [INFO] [stdout] f39ca87f8ab7bb66ecb64af9298cbe0f5bfda896cb7fcdd9f44e603aa592d033