[INFO] fetching crate tinycdb 0.0.7... [INFO] checking tinycdb-0.0.7 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate tinycdb 0.0.7 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate tinycdb 0.0.7 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 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-7-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] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 7 packages to latest compatible versions [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f18d0332b9b1c4bdcdb2ad85e1414a03f56daa5db782de06d5232e0f59ba13cd [INFO] running `Command { std: "docker" "start" "-a" "f18d0332b9b1c4bdcdb2ad85e1414a03f56daa5db782de06d5232e0f59ba13cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f18d0332b9b1c4bdcdb2ad85e1414a03f56daa5db782de06d5232e0f59ba13cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f18d0332b9b1c4bdcdb2ad85e1414a03f56daa5db782de06d5232e0f59ba13cd", kill_on_drop: false }` [INFO] [stdout] f18d0332b9b1c4bdcdb2ad85e1414a03f56daa5db782de06d5232e0f59ba13cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 90ba5d5a4cde7c67185d4f16643cbb70e7ea242547cee6354dae5f0eccb2a72e [INFO] running `Command { std: "docker" "start" "-a" "90ba5d5a4cde7c67185d4f16643cbb70e7ea242547cee6354dae5f0eccb2a72e", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling tinycdb-sys v0.0.2 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Compiling lz4-sys v1.11.0 [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] 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] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking lz4 v1.27.0 [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/lib.rs:558:39 [INFO] [stdout] | [INFO] [stdout] 558 | static HELLO_CDB: &'static [u8] = ( [INFO] [stdout] | _______________________________________^ [INFO] [stdout] 559 | | b"BCJNGERAXl4AAAAxIggAAQAPCAD/MlMCAAAAMlABDwgA//+jAMACE0LAAg8IAP///9jw\ [INFO] [stdout] | |________^ [INFO] [stdout] 560 | AQMAAAAFAAAAb25lSGVsbG8QAPMEBwAAAHR3b0dvb2RieWUpYIcLEBYECAIAgIFbhwsA\ [INFO] [stdout] 561 | CAAAAAAAAAXW/+Q=" [INFO] [stdout] | ____________________________^ [INFO] [stdout] 562 | | ); [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 558 ~ static HELLO_CDB: &'static [u8] = b"BCJNGERAXl4AAAAxIggAAQAPCAD/MlMCAAAAMlABDwgA//+jAMACE0LAAg8IAP///9jw\ [INFO] [stdout] 559 | AQMAAAAFAAAAb25lSGVsbG8QAPMEBwAAAHR3b0dvb2RieWUpYIcLEBYECAIAgIFbhwsA\ [INFO] [stdout] 560 ~ CAAAAAAAAAXW/+Q="; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [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] error: this value of type `Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:664:19 [INFO] [stdout] | [INFO] [stdout] 656 | let r = creator.add(b"foo", b"bar"); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 664 | match creator.exists(b"notexisting") { [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` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:700:19 [INFO] [stdout] | [INFO] [stdout] 689 | let r = creator.add(b"foo", b"bar"); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 697 | let r = creator.remove(b"foo", false); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 700 | match creator.exists(b"foo") { [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: this value of type `Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:734:19 [INFO] [stdout] | [INFO] [stdout] 723 | let r = creator.add(b"foo", b"bar"); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 731 | let r = creator.put(b"foo", b"baz", ffi::CdbPutMode::Insert); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 734 | match creator.exists(b"foo") { [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] 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] 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 3 previous errors; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tinycdb` (lib test) due to 4 previous errors; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "90ba5d5a4cde7c67185d4f16643cbb70e7ea242547cee6354dae5f0eccb2a72e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90ba5d5a4cde7c67185d4f16643cbb70e7ea242547cee6354dae5f0eccb2a72e", kill_on_drop: false }` [INFO] [stdout] 90ba5d5a4cde7c67185d4f16643cbb70e7ea242547cee6354dae5f0eccb2a72e