[INFO] cloning repository https://github.com/brenno263/rand-emoji [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brenno263/rand-emoji" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrenno263%2Frand-emoji", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrenno263%2Frand-emoji'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5bd9547bf28ab2f544ee91f3563e2033ae5b43ee [INFO] checking brenno263/rand-emoji/5bd9547bf28ab2f544ee91f3563e2033ae5b43ee against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrenno263%2Frand-emoji" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/brenno263/rand-emoji 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 git repo https://github.com/brenno263/rand-emoji [INFO] finished tweaking git repo https://github.com/brenno263/rand-emoji [INFO] tweaked toml for git repo https://github.com/brenno263/rand-emoji written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/brenno263/rand-emoji 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-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] 274c92c1bb081d31893d3a707f81c8ece59eb54d2abf8ca97d764e6e1e70379c [INFO] running `Command { std: "docker" "start" "-a" "274c92c1bb081d31893d3a707f81c8ece59eb54d2abf8ca97d764e6e1e70379c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "274c92c1bb081d31893d3a707f81c8ece59eb54d2abf8ca97d764e6e1e70379c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "274c92c1bb081d31893d3a707f81c8ece59eb54d2abf8ca97d764e6e1e70379c", kill_on_drop: false }` [INFO] [stdout] 274c92c1bb081d31893d3a707f81c8ece59eb54d2abf8ca97d764e6e1e70379c [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] b7d00ac48234d6d431c41d7f2aecf949dbd2ddea4380a239309481f4e7e0815a [INFO] running `Command { std: "docker" "start" "-a" "b7d00ac48234d6d431c41d7f2aecf949dbd2ddea4380a239309481f4e7e0815a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.152 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand-emoji v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `error::Error`, `iter`, and `self` [INFO] [stdout] --> src/main.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{env, error::Error, fs::{self, File}, io::{BufRead, BufReader}, iter, path::Path}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `error::Error`, `iter`, and `self` [INFO] [stdout] --> src/main.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{env, error::Error, fs::{self, File}, io::{BufRead, BufReader}, iter, path::Path}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `character` is never read [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 9 | struct Emojichar { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 10 | pub character: char, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `RANGES` is never used [INFO] [stdout] --> src/main.rs:26:15 [INFO] [stdout] | [INFO] [stdout] 26 | const RANGES: [(u32,u32); 1]= [ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EmojiIter` is never constructed [INFO] [stdout] --> src/main.rs:44:8 [INFO] [stdout] | [INFO] [stdout] 44 | struct EmojiIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 48 | / impl EmojiIter [INFO] [stdout] 49 | | where [INFO] [stdout] 50 | | R: Rng, [INFO] [stdout] | |___________- associated function in this implementation [INFO] [stdout] 51 | { [INFO] [stdout] 52 | pub fn new(rng: R) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `KeycapSequence`, `FlagSequence`, and `ModifierSequence` are never constructed [INFO] [stdout] --> src/main.rs:81:5 [INFO] [stdout] | [INFO] [stdout] 79 | enum EmojiType { [INFO] [stdout] | --------- variants in this enum [INFO] [stdout] 80 | Basic, [INFO] [stdout] 81 | KeycapSequence, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 82 | FlagSequence, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 83 | ModifierSequence, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EmojiType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `emoji_type` is never read [INFO] [stdout] --> src/main.rs:90:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct EmojiData { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 89 | character_raw: u32, [INFO] [stdout] 90 | emoji_type: EmojiType, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EmojiData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/main.rs:100:5 [INFO] [stdout] | [INFO] [stdout] 99 | fn parse_emoji_data(lines: impl Iterator) -> impl Iterator { [INFO] [stdout] | ----------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 100 | / lines [INFO] [stdout] 101 | | .filter_map(|line| { [INFO] [stdout] 102 | | let first_char = line.chars().nth(0).unwrap_or(' '); [INFO] [stdout] 103 | | if first_char.is_alphanumeric() { [INFO] [stdout] ... | [INFO] [stdout] 107 | | } [INFO] [stdout] 108 | | }) [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/main.rs:153:10 [INFO] [stdout] | [INFO] [stdout] 144 | fn load_from_file

(path: P) -> Option> [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 148 | let file = File::open(path).ok()?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 149 | let file_lines = BufReader::new(file) [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 153 | Some(parse_emoji_data(file_lines)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rand-emoji` (bin "rand-emoji" test) due to 3 previous errors; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `character` is never read [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 9 | struct Emojichar { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 10 | pub character: char, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `RANGES` is never used [INFO] [stdout] --> src/main.rs:26:15 [INFO] [stdout] | [INFO] [stdout] 26 | const RANGES: [(u32,u32); 1]= [ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EmojiIter` is never constructed [INFO] [stdout] --> src/main.rs:44:8 [INFO] [stdout] | [INFO] [stdout] 44 | struct EmojiIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 48 | / impl EmojiIter [INFO] [stdout] 49 | | where [INFO] [stdout] 50 | | R: Rng, [INFO] [stdout] | |___________- associated function in this implementation [INFO] [stdout] 51 | { [INFO] [stdout] 52 | pub fn new(rng: R) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `KeycapSequence`, `FlagSequence`, and `ModifierSequence` are never constructed [INFO] [stdout] --> src/main.rs:81:5 [INFO] [stdout] | [INFO] [stdout] 79 | enum EmojiType { [INFO] [stdout] | --------- variants in this enum [INFO] [stdout] 80 | Basic, [INFO] [stdout] 81 | KeycapSequence, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 82 | FlagSequence, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 83 | ModifierSequence, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EmojiType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `emoji_type` is never read [INFO] [stdout] --> src/main.rs:90:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct EmojiData { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 89 | character_raw: u32, [INFO] [stdout] 90 | emoji_type: EmojiType, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EmojiData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/main.rs:100:5 [INFO] [stdout] | [INFO] [stdout] 99 | fn parse_emoji_data(lines: impl Iterator) -> impl Iterator { [INFO] [stdout] | ----------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 100 | / lines [INFO] [stdout] 101 | | .filter_map(|line| { [INFO] [stdout] 102 | | let first_char = line.chars().nth(0).unwrap_or(' '); [INFO] [stdout] 103 | | if first_char.is_alphanumeric() { [INFO] [stdout] ... | [INFO] [stdout] 107 | | } [INFO] [stdout] 108 | | }) [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/main.rs:153:10 [INFO] [stdout] | [INFO] [stdout] 144 | fn load_from_file

(path: P) -> Option> [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 148 | let file = File::open(path).ok()?; [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 149 | let file_lines = BufReader::new(file) [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 153 | Some(parse_emoji_data(file_lines)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rand-emoji` (bin "rand-emoji") due to 3 previous errors; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "b7d00ac48234d6d431c41d7f2aecf949dbd2ddea4380a239309481f4e7e0815a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7d00ac48234d6d431c41d7f2aecf949dbd2ddea4380a239309481f4e7e0815a", kill_on_drop: false }` [INFO] [stdout] b7d00ac48234d6d431c41d7f2aecf949dbd2ddea4380a239309481f4e7e0815a