[INFO] fetching crate testingTwice 0.1.9... [INFO] checking testingTwice-0.1.9 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate testingTwice 0.1.9 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate testingTwice 0.1.9 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 testingTwice 0.1.9 [INFO] finished tweaking crates.io crate testingTwice 0.1.9 [INFO] tweaked toml for crates.io crate testingTwice 0.1.9 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate testingTwice 0.1.9 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] da6995c599fd9693cf39f54b2db9cc22dd359121ea21c8aac78c97e3105c06c2 [INFO] running `Command { std: "docker" "start" "-a" "da6995c599fd9693cf39f54b2db9cc22dd359121ea21c8aac78c97e3105c06c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "da6995c599fd9693cf39f54b2db9cc22dd359121ea21c8aac78c97e3105c06c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da6995c599fd9693cf39f54b2db9cc22dd359121ea21c8aac78c97e3105c06c2", kill_on_drop: false }` [INFO] [stdout] da6995c599fd9693cf39f54b2db9cc22dd359121ea21c8aac78c97e3105c06c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b2c0cf46a7192666e19f564b63458d963c1f3448bea79fdbd82b6cfd3276153a [INFO] running `Command { std: "docker" "start" "-a" "b2c0cf46a7192666e19f564b63458d963c1f3448bea79fdbd82b6cfd3276153a", kill_on_drop: false }` [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking rev_buf_reader v0.3.0 [INFO] [stderr] Checking testingTwice v0.1.9 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::ffi::OsStr` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ffi::OsStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ExitCode`, `ExitStatus`, and `exit` [INFO] [stdout] --> src/main.rs:5:20 [INFO] [stdout] | [INFO] [stdout] 5 | use std::process::{exit, Command, ExitCode, ExitStatus}; [INFO] [stdout] | ^^^^ ^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `read_dir` [INFO] [stdout] --> src/main.rs:6:33 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fs::{self, create_dir, read_dir, File}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `lines_from_file` is never used [INFO] [stdout] --> src/main.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn lines_from_file(file: &File, limit: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [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/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 18 | let buf = RevBufReader::new(file); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 19 | buf.lines().take(limit).map(|l| l.expect("Could not parse line")).collect() [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: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `testingTwice` (bin "testingTwice") due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `std::ffi::OsStr` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ffi::OsStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ExitCode`, `ExitStatus`, and `exit` [INFO] [stdout] --> src/main.rs:5:20 [INFO] [stdout] | [INFO] [stdout] 5 | use std::process::{exit, Command, ExitCode, ExitStatus}; [INFO] [stdout] | ^^^^ ^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `read_dir` [INFO] [stdout] --> src/main.rs:6:33 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fs::{self, create_dir, read_dir, File}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `lines_from_file` is never used [INFO] [stdout] --> src/main.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn lines_from_file(file: &File, limit: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [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/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 18 | let buf = RevBufReader::new(file); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 19 | buf.lines().take(limit).map(|l| l.expect("Could not parse line")).collect() [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: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `testingTwice` (bin "testingTwice" test) due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "b2c0cf46a7192666e19f564b63458d963c1f3448bea79fdbd82b6cfd3276153a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2c0cf46a7192666e19f564b63458d963c1f3448bea79fdbd82b6cfd3276153a", kill_on_drop: false }` [INFO] [stdout] b2c0cf46a7192666e19f564b63458d963c1f3448bea79fdbd82b6cfd3276153a