[INFO] fetching crate virdant 0.1.0-rc0... [INFO] checking virdant-0.1.0-rc0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate virdant 0.1.0-rc0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate virdant 0.1.0-rc0 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 virdant 0.1.0-rc0 [INFO] finished tweaking crates.io crate virdant 0.1.0-rc0 [INFO] tweaked toml for crates.io crate virdant 0.1.0-rc0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate virdant 0.1.0-rc0 already has a lockfile, it will not be regenerated [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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 654712528fd8610f98cb651f74df94147756c26ab445194e88771bc75685055c [INFO] running `Command { std: "docker" "start" "-a" "654712528fd8610f98cb651f74df94147756c26ab445194e88771bc75685055c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "654712528fd8610f98cb651f74df94147756c26ab445194e88771bc75685055c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "654712528fd8610f98cb651f74df94147756c26ab445194e88771bc75685055c", kill_on_drop: false }` [INFO] [stdout] 654712528fd8610f98cb651f74df94147756c26ab445194e88771bc75685055c [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e168f07fe6cbc7b23a5d250f03a973f33e00df1fdbb943e10164b89b6b63af7c [INFO] running `Command { std: "docker" "start" "-a" "e168f07fe6cbc7b23a5d250f03a973f33e00df1fdbb943e10164b89b6b63af7c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling parking_lot_core v0.9.9 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling memchr v2.7.2 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling regex-syntax v0.8.3 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Compiling hashbrown v0.14.3 [INFO] [stderr] Compiling phf_shared v0.10.0 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling either v1.11.0 [INFO] [stderr] Compiling lock_api v0.4.11 [INFO] [stderr] Compiling new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling term v0.7.0 [INFO] [stderr] Compiling indexmap v2.2.6 [INFO] [stderr] Compiling fixedbitset v0.4.2 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Compiling ascii-canvas v3.0.0 [INFO] [stderr] Compiling string_cache v0.8.7 [INFO] [stderr] Compiling itertools v0.11.0 [INFO] [stderr] Compiling ena v0.14.2 [INFO] [stderr] Compiling petgraph v0.6.4 [INFO] [stderr] Compiling pico-args v0.5.0 [INFO] [stderr] Compiling unicode-xid v0.2.4 [INFO] [stderr] Compiling regex-automata v0.4.6 [INFO] [stderr] Checking lalrpop-util v0.20.2 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking lalrpop v0.20.2 [INFO] [stderr] Compiling virdant v0.1.0-rc0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `check::*` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use check::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `check::*` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use check::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/ast.rs:173:23 [INFO] [stdout] | [INFO] [stdout] 173 | pub fn get(&self, name: &str) -> Option<&NamedItem> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `component_name` [INFO] [stdout] --> src/ast.rs:193:31 [INFO] [stdout] | [INFO] [stdout] 193 | pub fn connect_for(&self, component_name: &str) -> Connect { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_component_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `value::Value` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/eval.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn eval(ctx: Context, expr: &Expr) -> Value { [INFO] [stdout] | --- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 25 | let subject_value: Value = eval(ctx.clone(), subject); [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: unused variable: `name` [INFO] [stdout] --> src/ast.rs:173:23 [INFO] [stdout] | [INFO] [stdout] 173 | pub fn get(&self, name: &str) -> Option<&NamedItem> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `component_name` [INFO] [stdout] --> src/ast.rs:193:31 [INFO] [stdout] | [INFO] [stdout] 193 | pub fn connect_for(&self, component_name: &str) -> Connect { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_component_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `expr::Expr` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/typecheck.rs:73:17 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn typeinfer(ctx: Context, expr: &Expr) -> Expr { [INFO] [stdout] | --- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 73 | let typed_subject: Expr = typeinfer(ctx.clone(), subject); [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 `value::Value` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/eval.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn eval(ctx: Context, expr: &Expr) -> Value { [INFO] [stdout] | --- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 25 | let subject_value: Value = eval(ctx.clone(), subject); [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: fields `0` and `1` are never read [INFO] [stdout] --> src/ast.rs:61:22 [INFO] [stdout] | [INFO] [stdout] 61 | pub struct Submodule(Ident, Ident); [INFO] [stdout] | --------- ^^^^^ ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Submodule` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `expr::Expr` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/typecheck.rs:73:17 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn typeinfer(ctx: Context, expr: &Expr) -> Expr { [INFO] [stdout] | --- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 73 | let typed_subject: Expr = typeinfer(ctx.clone(), subject); [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 `0` and `1` are never read [INFO] [stdout] --> src/ast.rs:61:22 [INFO] [stdout] | [INFO] [stdout] 61 | pub struct Submodule(Ident, Ident); [INFO] [stdout] | --------- ^^^^^ ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Submodule` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `virdant` (bin "virdant") due to 3 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `virdant` (bin "virdant" test) due to 3 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "e168f07fe6cbc7b23a5d250f03a973f33e00df1fdbb943e10164b89b6b63af7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e168f07fe6cbc7b23a5d250f03a973f33e00df1fdbb943e10164b89b6b63af7c", kill_on_drop: false }` [INFO] [stdout] e168f07fe6cbc7b23a5d250f03a973f33e00df1fdbb943e10164b89b6b63af7c