[INFO] cloning repository https://github.com/Debulin/rustpro1 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Debulin/rustpro1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDebulin%2Frustpro1", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDebulin%2Frustpro1'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0d50da797eed79c0c3743a473070919e71e5c57c [INFO] checking Debulin/rustpro1/0d50da797eed79c0c3743a473070919e71e5c57c 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%2FDebulin%2Frustpro1" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Debulin/rustpro1 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/Debulin/rustpro1 [INFO] finished tweaking git repo https://github.com/Debulin/rustpro1 [INFO] tweaked toml for git repo https://github.com/Debulin/rustpro1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Debulin/rustpro1 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-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] 5b8b46d88b656ada9e6b8ccb7b948a2333a131c06104b46288292a93af1aa61c [INFO] running `Command { std: "docker" "start" "-a" "5b8b46d88b656ada9e6b8ccb7b948a2333a131c06104b46288292a93af1aa61c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b8b46d88b656ada9e6b8ccb7b948a2333a131c06104b46288292a93af1aa61c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b8b46d88b656ada9e6b8ccb7b948a2333a131c06104b46288292a93af1aa61c", kill_on_drop: false }` [INFO] [stdout] 5b8b46d88b656ada9e6b8ccb7b948a2333a131c06104b46288292a93af1aa61c [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] 230aac842f6ab9bf4ba92e6c2293f39e3eb9b0f954749f7ef90844461f749190 [INFO] running `Command { std: "docker" "start" "-a" "230aac842f6ab9bf4ba92e6c2293f39e3eb9b0f954749f7ef90844461f749190", kill_on_drop: false }` [INFO] [stderr] Checking rustpro1 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `a_int` [INFO] [stdout] --> src/main.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let a_int = 1u32; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_a_int` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_bool` [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let a_bool = true; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unit` [INFO] [stdout] --> src/main.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let unit = (); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_unit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_int` [INFO] [stdout] --> src/main.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let a_int = 1u32; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_a_int` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a_bool` [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let a_bool = true; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unit` [INFO] [stdout] --> src/main.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let unit = (); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_unit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used [INFO] [stdout] --> src/main.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl List { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 12 | // 创建一个空的 List 实例 [INFO] [stdout] 13 | fn new() -> List { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn prepend(self, elem: u32) -> List { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | fn len(&self) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn stringify(&self) -> String { [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:21:20 [INFO] [stdout] | [INFO] [stdout] 19 | fn prepend(self, elem: u32) -> List { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 20 | // `Cons` 同样为 List 类型 [INFO] [stdout] 21 | Cons(elem, Box::new(self)) [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: associated items `new`, `prepend`, `len`, and `stringify` are never used [INFO] [stdout] --> src/main.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl List { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 12 | // 创建一个空的 List 实例 [INFO] [stdout] 13 | fn new() -> List { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | fn prepend(self, elem: u32) -> List { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | fn len(&self) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn stringify(&self) -> String { [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:21:20 [INFO] [stdout] | [INFO] [stdout] 19 | fn prepend(self, elem: u32) -> List { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 20 | // `Cons` 同样为 List 类型 [INFO] [stdout] 21 | Cons(elem, Box::new(self)) [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rustpro1` (bin "rustpro1") due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rustpro1` (bin "rustpro1" test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "230aac842f6ab9bf4ba92e6c2293f39e3eb9b0f954749f7ef90844461f749190", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "230aac842f6ab9bf4ba92e6c2293f39e3eb9b0f954749f7ef90844461f749190", kill_on_drop: false }` [INFO] [stdout] 230aac842f6ab9bf4ba92e6c2293f39e3eb9b0f954749f7ef90844461f749190