[INFO] fetching crate etwin_serde_tools 0.12.3... [INFO] checking etwin_serde_tools-0.12.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate etwin_serde_tools 0.12.3 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate etwin_serde_tools 0.12.3 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 etwin_serde_tools 0.12.3 [INFO] finished tweaking crates.io crate etwin_serde_tools 0.12.3 [INFO] tweaked toml for crates.io crate etwin_serde_tools 0.12.3 written to /workspace/builds/worker-0-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 111 packages to latest compatible versions [INFO] [stderr] Adding base64 v0.21.7 (available: v0.22.1) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding core-foundation v0.9.4 (available: v0.10.0) [INFO] [stderr] Adding h2 v0.3.26 (available: v0.4.6) [INFO] [stderr] Adding hermit-abi v0.3.9 (available: v0.4.0) [INFO] [stderr] Adding http v0.2.12 (available: v1.1.0) [INFO] [stderr] Adding http-body v0.4.6 (available: v1.0.1) [INFO] [stderr] Adding hyper v0.14.30 (available: v1.4.1) [INFO] [stderr] Adding idna v0.5.0 (available: v1.0.2) [INFO] [stderr] Adding reqwest v0.11.27 (available: v0.12.7) [INFO] [stderr] Adding sync_wrapper v0.1.2 (available: v1.0.1) [INFO] [stderr] Adding system-configuration v0.5.1 (available: v0.6.1) [INFO] [stderr] Adding system-configuration-sys v0.5.0 (available: v0.6.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding windows-core v0.52.0 (available: v0.58.0) [INFO] [stderr] Adding windows-sys v0.48.0 (available: v0.59.0) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [INFO] [stderr] Adding windows-targets v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding winreg v0.50.0 (available: v0.52.0) [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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a3be2f922bca8e0ebbd70e0290e2785e76909195aec85e8ca958fea0799d533b [INFO] running `Command { std: "docker" "start" "-a" "a3be2f922bca8e0ebbd70e0290e2785e76909195aec85e8ca958fea0799d533b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3be2f922bca8e0ebbd70e0290e2785e76909195aec85e8ca958fea0799d533b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3be2f922bca8e0ebbd70e0290e2785e76909195aec85e8ca958fea0799d533b", kill_on_drop: false }` [INFO] [stdout] a3be2f922bca8e0ebbd70e0290e2785e76909195aec85e8ca958fea0799d533b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 86b3d10e6bbfcb09da46357ad1cdcc4338b70ecd74fc7402ab851c4748f83772 [INFO] running `Command { std: "docker" "start" "-a" "86b3d10e6bbfcb09da46357ad1cdcc4338b70ecd74fc7402ab851c4748f83772", kill_on_drop: false }` [INFO] [stderr] Checking etwin_serde_tools v0.12.3 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `serde_json::Error` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:217:11 [INFO] [stdout] | [INFO] [stdout] 214 | let actual = serde_json::from_str::(s); [INFO] [stdout] | ------ [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 217 | Err(actual) => { [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: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `etwin_serde_tools` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "86b3d10e6bbfcb09da46357ad1cdcc4338b70ecd74fc7402ab851c4748f83772", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86b3d10e6bbfcb09da46357ad1cdcc4338b70ecd74fc7402ab851c4748f83772", kill_on_drop: false }` [INFO] [stdout] 86b3d10e6bbfcb09da46357ad1cdcc4338b70ecd74fc7402ab851c4748f83772