[INFO] fetching crate mo 0.1.0... [INFO] checking mo-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate mo 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate mo 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 mo 0.1.0 [INFO] finished tweaking crates.io crate mo 0.1.0 [INFO] tweaked toml for crates.io crate mo 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate mo 0.1.0 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" "+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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9722dd08f791558e2c920a6c0a27276e88a02034695703bd5708a880579ca2c5 [INFO] running `Command { std: "docker" "start" "-a" "9722dd08f791558e2c920a6c0a27276e88a02034695703bd5708a880579ca2c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9722dd08f791558e2c920a6c0a27276e88a02034695703bd5708a880579ca2c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9722dd08f791558e2c920a6c0a27276e88a02034695703bd5708a880579ca2c5", kill_on_drop: false }` [INFO] [stdout] 9722dd08f791558e2c920a6c0a27276e88a02034695703bd5708a880579ca2c5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4eaf79e9b9e1c76f5c5522e81ff35784b85583834cb506f2713405e8753f7d5a [INFO] running `Command { std: "docker" "start" "-a" "4eaf79e9b9e1c76f5c5522e81ff35784b85583834cb506f2713405e8753f7d5a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.89 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling lexical-core v0.7.5 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking ucd-trie v0.1.3 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking pest v2.1.3 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling psm v0.1.12 [INFO] [stderr] Compiling stacker v0.1.13 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking terminal_size v0.1.16 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Checking pest_meta v2.1.3 [INFO] [stderr] Checking plotters v0.3.0 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking pest_vm v2.1.0 [INFO] [stderr] Checking serde_test v0.8.23 [INFO] [stderr] Checking linked-hash-map v0.3.0 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking serde-hjson v0.9.1 [INFO] [stderr] Checking console v0.14.1 [INFO] [stderr] Checking indicatif v0.11.0 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking config v0.10.1 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking mo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] warning: fields `total_count`, `weights`, and `choices_count` are never read [INFO] [stdout] --> src/generator/mod.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 39 | struct Context { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 40 | total_count: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | weights: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | choices_count: HashMap, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Context` has derived impls for the traits `Default`, `Debug`, and `Clone`, 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: 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:127:8 [INFO] [stdout] | [INFO] [stdout] 111 | let ast = match parser::consume_rules(pairs) { [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 112 | Ok(ast) => ast, [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 122 | let hashmap_ast_rules: HashMap = ast [INFO] [stdout] | ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 127 | Ok(Grammar { [INFO] [stdout] | ________^ [INFO] [stdout] 128 | | rules: hashmap_ast_rules, [INFO] [stdout] 129 | | }) [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:124:45 [INFO] [stdout] | [INFO] [stdout] 124 | .map(|rule| (rule.name.to_string(), rule.clone())) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/generator/mod.rs:29:22 [INFO] [stdout] | [INFO] [stdout] 27 | let (grammar, clean_grammar) = init_grammar(grammar); [INFO] [stdout] | ------- ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 28 | InputData { [INFO] [stdout] 29 | grammar: grammar.unwrap(), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/generator/mod.rs:30:28 [INFO] [stdout] | [INFO] [stdout] 27 | let (grammar, clean_grammar) = init_grammar(grammar); [INFO] [stdout] | ------- ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 30 | clean_grammar: clean_grammar.unwrap(), [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 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mo` (lib) due to 5 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "4eaf79e9b9e1c76f5c5522e81ff35784b85583834cb506f2713405e8753f7d5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4eaf79e9b9e1c76f5c5522e81ff35784b85583834cb506f2713405e8753f7d5a", kill_on_drop: false }` [INFO] [stdout] 4eaf79e9b9e1c76f5c5522e81ff35784b85583834cb506f2713405e8753f7d5a