[INFO] fetching crate tinycdb 0.0.7... [INFO] checking tinycdb-0.0.7 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate tinycdb 0.0.7 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate tinycdb 0.0.7 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 tinycdb 0.0.7 [INFO] finished tweaking crates.io crate tinycdb 0.0.7 [INFO] tweaked toml for crates.io crate tinycdb 0.0.7 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] Locking 8 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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] 944d1196db56d9c336bd8e42b4bc6d0b1d3043d7c90f5e73af2f734f8d0ab3ae [INFO] running `Command { std: "docker" "start" "-a" "944d1196db56d9c336bd8e42b4bc6d0b1d3043d7c90f5e73af2f734f8d0ab3ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "944d1196db56d9c336bd8e42b4bc6d0b1d3043d7c90f5e73af2f734f8d0ab3ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "944d1196db56d9c336bd8e42b4bc6d0b1d3043d7c90f5e73af2f734f8d0ab3ae", kill_on_drop: false }` [INFO] [stdout] 944d1196db56d9c336bd8e42b4bc6d0b1d3043d7c90f5e73af2f734f8d0ab3ae [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] 730f32d68769f4e79658ff3a1a434fa842fd58a3f15234589da185dfe5a94794 [INFO] running `Command { std: "docker" "start" "-a" "730f32d68769f4e79658ff3a1a434fa842fd58a3f15234589da185dfe5a94794", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling tinycdb-sys v0.0.2 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Compiling cc v1.1.15 [INFO] [stderr] Checking tinycdb v0.0.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:171:37 [INFO] [stdout] | [INFO] [stdout] 171 | cdb: unsafe { std::mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/lib.rs:341:38 [INFO] [stdout] | [INFO] [stdout] 341 | cdbm: unsafe { std::mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `kind` and `message` are never read [INFO] [stdout] --> src/lib.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 49 | pub struct CdbError { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 50 | kind: CdbErrorKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 51 | message: Cow<'static, str>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CdbError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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:74:28 [INFO] [stdout] | [INFO] [stdout] 71 | fn new_from_errno(msg: T) -> CdbError [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 74 | CdbError::new(msg, CdbErrorKind::IoError(std::io::Error::last_os_error())) [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] warning: the type `cdb` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:171:27 [INFO] [stdout] | [INFO] [stdout] 171 | cdb: unsafe { std::mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `cdb_make` does not permit being left uninitialized [INFO] [stdout] --> src/lib.rs:341:28 [INFO] [stdout] | [INFO] [stdout] 341 | cdbm: unsafe { std::mem::uninitialized() }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tinycdb` (lib) due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "730f32d68769f4e79658ff3a1a434fa842fd58a3f15234589da185dfe5a94794", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "730f32d68769f4e79658ff3a1a434fa842fd58a3f15234589da185dfe5a94794", kill_on_drop: false }` [INFO] [stdout] 730f32d68769f4e79658ff3a1a434fa842fd58a3f15234589da185dfe5a94794