[INFO] fetching crate jcompiler 0.1.0... [INFO] checking jcompiler-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate jcompiler 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate jcompiler 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 jcompiler 0.1.0 [INFO] finished tweaking crates.io crate jcompiler 0.1.0 [INFO] tweaked toml for crates.io crate jcompiler 0.1.0 written to /workspace/builds/worker-5-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 64 packages to latest compatible versions [INFO] [stderr] Adding aho-corasick v0.5.3 (latest: v1.1.3) [INFO] [stderr] Adding ansi_term v0.9.0 (latest: v0.12.1) [INFO] [stderr] Adding env_logger v0.3.5 (latest: v0.11.5) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.1.0) [INFO] [stderr] Adding itertools v0.4.19 (latest: v0.13.0) [INFO] [stderr] Adding llvm-sys v70.4.0 (latest: v181.1.1) [INFO] [stderr] Adding log v0.3.9 (latest: v0.4.22) [INFO] [stderr] Adding memchr v0.1.11 (latest: v2.7.4) [INFO] [stderr] Adding quickcheck v0.3.2 (latest: v1.0.3) [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.3) [INFO] [stderr] Adding regex v0.1.80 (latest: v1.10.6) [INFO] [stderr] Adding regex-syntax v0.3.9 (latest: v0.8.4) [INFO] [stderr] Adding semver v0.9.0 (latest: v1.0.23) [INFO] [stderr] Adding semver-parser v0.7.0 (latest: v0.10.2) [INFO] [stderr] Adding tempfile v2.2.0 (latest: v3.12.0) [INFO] [stderr] Adding thread-id v2.0.0 (latest: v4.2.2) [INFO] [stderr] Adding thread_local v0.2.7 (latest: v1.1.8) [INFO] [stderr] Adding utf8-ranges v0.1.3 (latest: v1.0.5) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 83bbc9f4c9e34ecf24bf4abe873955c4dc115675994390735bc147efbbf2f34e [INFO] running `Command { std: "docker" "start" "-a" "83bbc9f4c9e34ecf24bf4abe873955c4dc115675994390735bc147efbbf2f34e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "83bbc9f4c9e34ecf24bf4abe873955c4dc115675994390735bc147efbbf2f34e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83bbc9f4c9e34ecf24bf4abe873955c4dc115675994390735bc147efbbf2f34e", kill_on_drop: false }` [INFO] [stdout] 83bbc9f4c9e34ecf24bf4abe873955c4dc115675994390735bc147efbbf2f34e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 874efb839a19578e34eb7b9a821256d1215cd4b9e9acc2ad355e35edf5c87778 [INFO] running `Command { std: "docker" "start" "-a" "874efb839a19578e34eb7b9a821256d1215cd4b9e9acc2ad355e35edf5c87778", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking unicode-width v0.1.13 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking itertools v0.4.19 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking regex v0.1.80 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking tempfile v2.2.0 [INFO] [stderr] Checking env_logger v0.3.5 [INFO] [stderr] Checking quickcheck v0.3.2 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling pest v2.7.11 [INFO] [stderr] Compiling llvm-sys v70.4.0 [INFO] [stderr] Compiling pest_meta v2.7.11 [INFO] [stderr] Compiling pest_generator v2.7.11 [INFO] [stderr] Compiling pest_derive v2.7.11 [INFO] [stderr] Checking jcompiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `init_bb` [INFO] [stdout] --> src/lib/llvm.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | let (init_bb, mut bb) = add_initial_bbs(&mut module, main_fn); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_bb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `init_bb` [INFO] [stdout] --> src/lib/llvm.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | let (init_bb, mut bb) = add_initial_bbs(&mut module, main_fn); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_bb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `LLVM_TRUE` is never used [INFO] [stdout] --> src/lib/llvm.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | const LLVM_TRUE: LLVMBool = 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CompileContext` is never constructed [INFO] [stdout] --> src/lib/llvm.rs:262:8 [INFO] [stdout] | [INFO] [stdout] 262 | struct CompileContext { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `int8` is never used [INFO] [stdout] --> src/lib/llvm.rs:270:11 [INFO] [stdout] | [INFO] [stdout] 270 | unsafe fn int8(val: c_ulonglong) -> LLVMValueRef { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compile_static_outputs` is never used [INFO] [stdout] --> src/lib/llvm.rs:439:4 [INFO] [stdout] | [INFO] [stdout] 439 | fn compile_static_outputs(module: &mut Module, bb: LLVMBasicBlockRef, outputs: &[i8]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [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/llvm.rs:578:12 [INFO] [stdout] | [INFO] [stdout] 561 | let cpu = CString::new("generic").unwrap(); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 562 | // features are documented: http://llvm.org/docs/CommandGuide/llc.html#cmdoption-mattr [INFO] [stdout] 563 | let features = CString::new("").unwrap(); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 578 | Ok(TargetMachine { tm: target_machine }) [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/shell.rs:20:11 [INFO] [stdout] | [INFO] [stdout] 15 | let mut c = Command::new(command); [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 20 | match c.output() { [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: aborting due to 2 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `jcompiler` (lib) due to 3 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: constant `LLVM_TRUE` is never used [INFO] [stdout] --> src/lib/llvm.rs:17:7 [INFO] [stdout] | [INFO] [stdout] 17 | const LLVM_TRUE: LLVMBool = 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CompileContext` is never constructed [INFO] [stdout] --> src/lib/llvm.rs:262:8 [INFO] [stdout] | [INFO] [stdout] 262 | struct CompileContext { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `int8` is never used [INFO] [stdout] --> src/lib/llvm.rs:270:11 [INFO] [stdout] | [INFO] [stdout] 270 | unsafe fn int8(val: c_ulonglong) -> LLVMValueRef { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compile_static_outputs` is never used [INFO] [stdout] --> src/lib/llvm.rs:439:4 [INFO] [stdout] | [INFO] [stdout] 439 | fn compile_static_outputs(module: &mut Module, bb: LLVMBasicBlockRef, outputs: &[i8]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [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/llvm.rs:578:12 [INFO] [stdout] | [INFO] [stdout] 561 | let cpu = CString::new("generic").unwrap(); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 562 | // features are documented: http://llvm.org/docs/CommandGuide/llc.html#cmdoption-mattr [INFO] [stdout] 563 | let features = CString::new("").unwrap(); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 578 | Ok(TargetMachine { tm: target_machine }) [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/shell.rs:20:11 [INFO] [stdout] | [INFO] [stdout] 15 | let mut c = Command::new(command); [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 20 | match c.output() { [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: aborting due to 2 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `jcompiler` (lib test) due to 3 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "874efb839a19578e34eb7b9a821256d1215cd4b9e9acc2ad355e35edf5c87778", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "874efb839a19578e34eb7b9a821256d1215cd4b9e9acc2ad355e35edf5c87778", kill_on_drop: false }` [INFO] [stdout] 874efb839a19578e34eb7b9a821256d1215cd4b9e9acc2ad355e35edf5c87778