[INFO] fetching crate serde_repr_base64 0.1.0... [INFO] checking serde_repr_base64-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate serde_repr_base64 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate serde_repr_base64 0.1.0 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 serde_repr_base64 0.1.0 [INFO] finished tweaking crates.io crate serde_repr_base64 0.1.0 [INFO] tweaked toml for crates.io crate serde_repr_base64 0.1.0 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 29 packages to latest compatible versions [INFO] [stderr] Adding embedded-io v0.4.0 (latest: v0.6.1) [INFO] [stderr] Adding hash32 v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (latest: v0.8.0) [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] [stderr] Blocking waiting for file lock on package cache [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fbbd03fc5d528951fe334357730d03d1442f6b826eb437c6f16c63cfcf4b9f12 [INFO] running `Command { std: "docker" "start" "-a" "fbbd03fc5d528951fe334357730d03d1442f6b826eb437c6f16c63cfcf4b9f12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fbbd03fc5d528951fe334357730d03d1442f6b826eb437c6f16c63cfcf4b9f12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fbbd03fc5d528951fe334357730d03d1442f6b826eb437c6f16c63cfcf4b9f12", kill_on_drop: false }` [INFO] [stdout] fbbd03fc5d528951fe334357730d03d1442f6b826eb437c6f16c63cfcf4b9f12 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9b91d33eac5e434363651b15c0560bd5b1eb064f9b0e2b311c3951b813952b1 [INFO] running `Command { std: "docker" "start" "-a" "c9b91d33eac5e434363651b15c0560bd5b1eb064f9b0e2b311c3951b813952b1", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling semver v1.0.23 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking cobs v0.2.3 [INFO] [stderr] Checking bytemuck v1.17.1 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking serde_json v1.0.127 [INFO] [stderr] Checking serde_repr_base64 v0.1.0 (/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/lib.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 32 | deserializer: D, [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 33 | ) -> Result { [INFO] [stdout] 34 | / T::try_from( [INFO] [stdout] 35 | | String::from_utf8( [INFO] [stdout] 36 | | URL_SAFE [INFO] [stdout] 37 | | .decode(String::deserialize(deserializer)?) [INFO] [stdout] ... | [INFO] [stdout] 40 | | .map_err(serde::de::Error::custom)?, [INFO] [stdout] 41 | | ) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 76 | deserializer: D, [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 85 | T::try_from(bytemuck::try_cast_slice::<_, U>(slice).map_err(serde::de::Error::custom)?) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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] [stderr] error: could not compile `serde_repr_base64` (lib) due to 3 previous errors [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c9b91d33eac5e434363651b15c0560bd5b1eb064f9b0e2b311c3951b813952b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9b91d33eac5e434363651b15c0560bd5b1eb064f9b0e2b311c3951b813952b1", kill_on_drop: false }` [INFO] [stdout] c9b91d33eac5e434363651b15c0560bd5b1eb064f9b0e2b311c3951b813952b1