[INFO] fetching crate metrics-prometheus-client 0.0.1...
[INFO] checking metrics-prometheus-client-0.0.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate metrics-prometheus-client 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate metrics-prometheus-client 0.0.1 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-prometheus-client 0.0.1
[INFO] finished tweaking crates.io crate metrics-prometheus-client 0.0.1
[INFO] tweaked toml for crates.io crate metrics-prometheus-client 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bb894743723652f9091cc1f1584149059370c96b0295955e90f2c89973dffdf
[INFO] running `Command { std: "docker" "start" "-a" "9bb894743723652f9091cc1f1584149059370c96b0295955e90f2c89973dffdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bb894743723652f9091cc1f1584149059370c96b0295955e90f2c89973dffdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb894743723652f9091cc1f1584149059370c96b0295955e90f2c89973dffdf", kill_on_drop: false }`
[INFO] [stdout] 9bb894743723652f9091cc1f1584149059370c96b0295955e90f2c89973dffdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32a8452b9a062b2918d4a9b6a185139a917d5c42a99bef9dc9d2b32ba06f36a4
[INFO] running `Command { std: "docker" "start" "-a" "32a8452b9a062b2918d4a9b6a185139a917d5c42a99bef9dc9d2b32ba06f36a4", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling prometheus-client v0.22.3
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking dtoa v1.0.9
[INFO] [stderr]    Compiling prometheus-client-derive-encode v0.4.2
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking metrics v0.23.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking metrics-prometheus-client v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]  --> src/utils.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |   pub(crate) fn convert_labels_to_prometheus(labels: Vec<Label>) -> Vec<(String, String)> {
[INFO] [stdout]   |                                              ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 5 | /     labels
[INFO] [stdout] 6 | |         .into_iter()
[INFO] [stdout] 7 | |         .map(Label::into_parts)
[INFO] [stdout] 8 | |         .map(|(key, value)| (key.into_owned(), value.into_owned()))
[INFO] [stdout]   | |___________________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this changes meaning in Rust 2024
[INFO] [stdout]   = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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 `metrics-prometheus-client` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]  --> src/utils.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |   pub(crate) fn convert_labels_to_prometheus(labels: Vec<Label>) -> Vec<(String, String)> {
[INFO] [stdout]   |                                              ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 5 | /     labels
[INFO] [stdout] 6 | |         .into_iter()
[INFO] [stdout] 7 | |         .map(Label::into_parts)
[INFO] [stdout] 8 | |         .map(|(key, value)| (key.into_owned(), value.into_owned()))
[INFO] [stdout]   | |___________________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this changes meaning in Rust 2024
[INFO] [stdout]   = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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 `metrics-prometheus-client` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "32a8452b9a062b2918d4a9b6a185139a917d5c42a99bef9dc9d2b32ba06f36a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a8452b9a062b2918d4a9b6a185139a917d5c42a99bef9dc9d2b32ba06f36a4", kill_on_drop: false }`
[INFO] [stdout] 32a8452b9a062b2918d4a9b6a185139a917d5c42a99bef9dc9d2b32ba06f36a4