[INFO] cloning repository https://github.com/aakarshan-raj/web_server [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aakarshan-raj/web_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faakarshan-raj%2Fweb_server", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faakarshan-raj%2Fweb_server'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f99e9cff8e83bcb47f73346a8ae7553b2642990d [INFO] checking aakarshan-raj/web_server/f99e9cff8e83bcb47f73346a8ae7553b2642990d 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%2Faakarshan-raj%2Fweb_server" "/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/aakarshan-raj/web_server 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/aakarshan-raj/web_server [INFO] finished tweaking git repo https://github.com/aakarshan-raj/web_server [INFO] tweaked toml for git repo https://github.com/aakarshan-raj/web_server written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/aakarshan-raj/web_server 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-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] 1deeab7f1481e6f75e27a4e4a21a9f14e77b5a5ead336f8c42f14df7be48f840 [INFO] running `Command { std: "docker" "start" "-a" "1deeab7f1481e6f75e27a4e4a21a9f14e77b5a5ead336f8c42f14df7be48f840", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1deeab7f1481e6f75e27a4e4a21a9f14e77b5a5ead336f8c42f14df7be48f840", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1deeab7f1481e6f75e27a4e4a21a9f14e77b5a5ead336f8c42f14df7be48f840", kill_on_drop: false }` [INFO] [stdout] 1deeab7f1481e6f75e27a4e4a21a9f14e77b5a5ead336f8c42f14df7be48f840 [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] dc21d85f40a223be84699eb0f2048a835227fdc19344b4b0dbdd151b0110273e [INFO] running `Command { std: "docker" "start" "-a" "dc21d85f40a223be84699eb0f2048a835227fdc19344b4b0dbdd151b0110273e", kill_on_drop: false }` [INFO] [stderr] Checking web_server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Thread` [INFO] [stdout] --> src/lib.rs:6:20 [INFO] [stdout] | [INFO] [stdout] 6 | thread::{self, Thread}, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Thread` [INFO] [stdout] --> src/lib.rs:6:20 [INFO] [stdout] | [INFO] [stdout] 6 | thread::{self, Thread}, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `thread` is never read [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ThreadPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 10 | thread: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `thread` are never read [INFO] [stdout] --> src/lib.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | struct Worker { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 41 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] 42 | thread: thread::JoinHandle<()>, [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.rs:49:21 [INFO] [stdout] | [INFO] [stdout] 46 | fn new(id: usize, rx: Arc>>) -> Worker { [INFO] [stdout] | ----------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 49 | thread: thread::spawn(move || { loop{ [INFO] [stdout] | _____________________^ [INFO] [stdout] 50 | | let job = rx.lock().unwrap().recv().unwrap(); [INFO] [stdout] 51 | | job(); [INFO] [stdout] 52 | | } [INFO] [stdout] 53 | | }), [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; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `web_server` (lib) due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `thread` is never read [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ThreadPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 10 | thread: Vec, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `thread` are never read [INFO] [stdout] --> src/lib.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | struct Worker { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 41 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] 42 | thread: thread::JoinHandle<()>, [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.rs:49:21 [INFO] [stdout] | [INFO] [stdout] 46 | fn new(id: usize, rx: Arc>>) -> Worker { [INFO] [stdout] | ----------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 49 | thread: thread::spawn(move || { loop{ [INFO] [stdout] | _____________________^ [INFO] [stdout] 50 | | let job = rx.lock().unwrap().recv().unwrap(); [INFO] [stdout] 51 | | job(); [INFO] [stdout] 52 | | } [INFO] [stdout] 53 | | }), [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; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `web_server` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "dc21d85f40a223be84699eb0f2048a835227fdc19344b4b0dbdd151b0110273e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc21d85f40a223be84699eb0f2048a835227fdc19344b4b0dbdd151b0110273e", kill_on_drop: false }` [INFO] [stdout] dc21d85f40a223be84699eb0f2048a835227fdc19344b4b0dbdd151b0110273e