[INFO] cloning repository https://github.com/Linghucong1999/my-rust-first-app [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Linghucong1999/my-rust-first-app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLinghucong1999%2Fmy-rust-first-app", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLinghucong1999%2Fmy-rust-first-app'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ca18ade8a5b2ce6703562bcb84dc3f36a50e97de [INFO] building Linghucong1999/my-rust-first-app against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLinghucong1999%2Fmy-rust-first-app" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Linghucong1999/my-rust-first-app on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Linghucong1999/my-rust-first-app [INFO] finished tweaking git repo https://github.com/Linghucong1999/my-rust-first-app [INFO] tweaked toml for git repo https://github.com/Linghucong1999/my-rust-first-app written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Linghucong1999/my-rust-first-app 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1ef8d991fbaed25382e1bfb9debccfd5e9a04d06646a7244731c527fdbb910e8 [INFO] running `Command { std: "docker" "start" "-a" "1ef8d991fbaed25382e1bfb9debccfd5e9a04d06646a7244731c527fdbb910e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ef8d991fbaed25382e1bfb9debccfd5e9a04d06646a7244731c527fdbb910e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ef8d991fbaed25382e1bfb9debccfd5e9a04d06646a7244731c527fdbb910e8", kill_on_drop: false }` [INFO] [stdout] 1ef8d991fbaed25382e1bfb9debccfd5e9a04d06646a7244731c527fdbb910e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c1d7b055fc49667b0a354f17f241f8c2e2699e6865bf8185547489b45edea899 [INFO] running `Command { std: "docker" "start" "-a" "c1d7b055fc49667b0a354f17f241f8c2e2699e6865bf8185547489b45edea899", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling my-app-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `user3` [INFO] [stdout] --> src/struct.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let user3 = build_user(user2.email, user2.username); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rectangle_area` [INFO] [stdout] --> src/struct.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let rectangle_area = area(&rect); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rectangle_area` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `active` is never read [INFO] [stdout] --> src/struct.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 3 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AlwaysEqual` is never constructed [INFO] [stdout] --> src/struct.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct AlwaysEqual; // 类单元结构体 [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> src/struct.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 18 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.50s [INFO] running `Command { std: "docker" "inspect" "c1d7b055fc49667b0a354f17f241f8c2e2699e6865bf8185547489b45edea899", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1d7b055fc49667b0a354f17f241f8c2e2699e6865bf8185547489b45edea899", kill_on_drop: false }` [INFO] [stdout] c1d7b055fc49667b0a354f17f241f8c2e2699e6865bf8185547489b45edea899 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 64254b4f0dd999cd206bea282ff6ddc72d9fd44a1dd1cdd18f4c6ce702ab39d3 [INFO] running `Command { std: "docker" "start" "-a" "64254b4f0dd999cd206bea282ff6ddc72d9fd44a1dd1cdd18f4c6ce702ab39d3", kill_on_drop: false }` [INFO] [stderr] Compiling my-app-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `user3` [INFO] [stdout] --> src/struct.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let user3 = build_user(user2.email, user2.username); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rectangle_area` [INFO] [stdout] --> src/struct.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let rectangle_area = area(&rect); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rectangle_area` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `active` is never read [INFO] [stdout] --> src/struct.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 3 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AlwaysEqual` is never constructed [INFO] [stdout] --> src/struct.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct AlwaysEqual; // 类单元结构体 [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> src/struct.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 18 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "64254b4f0dd999cd206bea282ff6ddc72d9fd44a1dd1cdd18f4c6ce702ab39d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64254b4f0dd999cd206bea282ff6ddc72d9fd44a1dd1cdd18f4c6ce702ab39d3", kill_on_drop: false }` [INFO] [stdout] 64254b4f0dd999cd206bea282ff6ddc72d9fd44a1dd1cdd18f4c6ce702ab39d3