[INFO] fetching crate xand-utils 1.0.0... [INFO] checking xand-utils-1.0.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate xand-utils 1.0.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate xand-utils 1.0.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate xand-utils 1.0.0 [INFO] finished tweaking crates.io crate xand-utils 1.0.0 [INFO] tweaked toml for crates.io crate xand-utils 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 31 packages to latest compatible versions [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (available: v1.0.0) [INFO] [stderr] Adding derive_more v0.15.0 (available: v1.0.0) [INFO] [stderr] Adding nix v0.14.1 (available: v0.29.0) [INFO] [stderr] Adding proc-macro2 v0.4.30 (available: v1.0.86) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.37) [INFO] [stderr] Adding rustc_version v0.2.3 (available: v0.4.1) [INFO] [stderr] Adding semver v0.9.0 (available: v1.0.23) [INFO] [stderr] Adding semver-parser v0.7.0 (available: v0.10.2) [INFO] [stderr] Adding snafu v0.6.10 (available: v0.8.5) [INFO] [stderr] Adding snafu-derive v0.6.10 (available: v0.8.5) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.77) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.77) [INFO] [stderr] Adding unicode-xid v0.1.0 (available: v0.2.6) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f319ecbd777020266db2ff3f38c943411935bfbab3895060ecd5fecaa7eea775 [INFO] running `Command { std: "docker" "start" "-a" "f319ecbd777020266db2ff3f38c943411935bfbab3895060ecd5fecaa7eea775", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f319ecbd777020266db2ff3f38c943411935bfbab3895060ecd5fecaa7eea775", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f319ecbd777020266db2ff3f38c943411935bfbab3895060ecd5fecaa7eea775", kill_on_drop: false }` [INFO] [stdout] f319ecbd777020266db2ff3f38c943411935bfbab3895060ecd5fecaa7eea775 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f0f914879a9c910c230d2351f48c75a07e20fda02c88fdcfadf5bae3029c7ca4 [INFO] running `Command { std: "docker" "start" "-a" "f0f914879a9c910c230d2351f48c75a07e20fda02c88fdcfadf5bae3029c7ca4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling regex-syntax v0.8.4 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling regex-automata v0.4.7 [INFO] [stderr] Compiling snafu-derive v0.6.10 [INFO] [stderr] Checking snafu v0.6.10 [INFO] [stderr] Compiling regex v1.10.6 [INFO] [stderr] Compiling derive_more v0.15.0 [INFO] [stderr] Checking xand-utils v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `Result, std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/procutils.rs:163:15 [INFO] [stdout] | [INFO] [stdout] 146 | let mut dropme = KillChildOnDrop::new(cmd); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 163 | match process.try_wait() { [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: this value of type `Result, std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/procutils.rs:195:19 [INFO] [stdout] | [INFO] [stdout] 191 | let mut dropme = KillChildOnDrop::new(cmd); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 195 | match process.try_wait() { [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `xand-utils` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "f0f914879a9c910c230d2351f48c75a07e20fda02c88fdcfadf5bae3029c7ca4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0f914879a9c910c230d2351f48c75a07e20fda02c88fdcfadf5bae3029c7ca4", kill_on_drop: false }` [INFO] [stdout] f0f914879a9c910c230d2351f48c75a07e20fda02c88fdcfadf5bae3029c7ca4