[INFO] cloning repository https://github.com/wzp-coding/study-workspace [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wzp-coding/study-workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwzp-coding%2Fstudy-workspace", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwzp-coding%2Fstudy-workspace'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9cc96ddddc61f36cbe49c66e9c8195c491599a1 [INFO] checking wzp-coding/study-workspace against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwzp-coding%2Fstudy-workspace" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wzp-coding/study-workspace on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wzp-coding/study-workspace [INFO] finished tweaking git repo https://github.com/wzp-coding/study-workspace [INFO] tweaked toml for git repo https://github.com/wzp-coding/study-workspace written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wzp-coding/study-workspace 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syn v2.0.58 [INFO] [stderr] Downloaded h2 v0.4.3 [INFO] [stderr] Downloaded reqwest v0.12.2 [INFO] [stderr] Downloaded rustix v0.38.32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8ac7fcc00dc8b6b037c48f039f350ee5cdc99b2f08d2293dd7de7764c90be082 [INFO] running `Command { std: "docker" "start" "-a" "8ac7fcc00dc8b6b037c48f039f350ee5cdc99b2f08d2293dd7de7764c90be082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8ac7fcc00dc8b6b037c48f039f350ee5cdc99b2f08d2293dd7de7764c90be082", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ac7fcc00dc8b6b037c48f039f350ee5cdc99b2f08d2293dd7de7764c90be082", kill_on_drop: false }` [INFO] [stdout] 8ac7fcc00dc8b6b037c48f039f350ee5cdc99b2f08d2293dd7de7764c90be082 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f55c548913f7212b3c10acc076c0bb13af252689c670d68ef82b336de64dad3 [INFO] running `Command { std: "docker" "start" "-a" "1f55c548913f7212b3c10acc076c0bb13af252689c670d68ef82b336de64dad3", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Compiling vcpkg v0.2.15 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Compiling cc v1.0.90 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling openssl v0.10.64 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking try-lock v0.2.5 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking tower-service v0.3.2 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Checking tower-layer v0.3.2 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Checking anstyle-parse v0.2.3 [INFO] [stderr] Checking form_urlencoded v1.2.1 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking anstyle v1.0.6 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking anstyle-query v1.0.2 [INFO] [stderr] Checking http v1.1.0 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking colorchoice v1.0.0 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Checking base64 v0.21.7 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking mime v0.3.17 [INFO] [stderr] Checking sync_wrapper v0.1.2 [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Checking anstream v0.6.13 [INFO] [stderr] Checking object_oriented_demo v0.1.0 (/opt/rustwide/workdir/object_oriented_demo) [INFO] [stderr] Checking rc_ref_cell_demo v0.1.0 (/opt/rustwide/workdir/rc_ref_cell_demo) [INFO] [stderr] Checking indexmap v2.2.6 [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> rc_ref_cell_demo/src/main.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 4 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking control_flow_demo v0.1.0 (/opt/rustwide/workdir/control_flow_demo) [INFO] [stderr] Checking rustls-pemfile v1.0.4 [INFO] [stderr] Checking trait_demo v0.1.0 (/opt/rustwide/workdir/trait_demo) [INFO] [stderr] Checking rc_circle_demo v0.1.0 (/opt/rustwide/workdir/rc_circle_demo) [INFO] [stderr] Checking auto_test_demo v0.1.0 (/opt/rustwide/workdir/auto_test_demo) [INFO] [stderr] Checking lifetime_demo v0.1.0 (/opt/rustwide/workdir/lifetime_demo) [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking hash_map_demo v0.1.0 (/opt/rustwide/workdir/hash_map_demo) [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> rc_circle_demo/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 8 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` 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] [stderr] Checking closure_demo v0.1.0 (/opt/rustwide/workdir/closure_demo) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking ref_cell_demo v0.1.0 (/opt/rustwide/workdir/ref_cell_demo) [INFO] [stderr] Checking rc_demo v0.1.0 (/opt/rustwide/workdir/rc_demo) [INFO] [stdout] warning: unused variable: `scores` [INFO] [stdout] --> hash_map_demo/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking string_demo v0.1.0 (/opt/rustwide/workdir/string_demo) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking iterator_demo v0.1.0 (/opt/rustwide/workdir/iterator_demo) [INFO] [stderr] Checking idna v0.5.0 [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> rc_ref_cell_demo/src/main.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 4 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking struct_demo v0.1.0 (/opt/rustwide/workdir/struct_demo) [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> rc_demo/src/main.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let b = Cons(3, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> rc_demo/src/main.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 16 | let c = Cons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> rc_demo/src/main.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | Cons(i32, Rc), [INFO] [stdout] | ---- ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 2 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s = data.to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let s = "initial contents".to_string(); // 该方法也可直接用于字符串字面量： [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let s = String::from("initial contents"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> string_demo/src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let s3 = s1 + &s2; // 注意 s1 被移动了，不能继续使用 [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let s = format!("{}-{}-{}", s1, s2, s3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking option_demo v0.1.0 (/opt/rustwide/workdir/option_demo) [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> iterator_demo/src/main.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_my_size` is never used [INFO] [stdout] --> iterator_demo/src/main.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn shoes_in_my_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking fabonacci v0.1.0 (/opt/rustwide/workdir/fabonacci) [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `area` is never used [INFO] [stdout] --> struct_demo/src/main.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 8 | fn area(self: &Self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking transfer_temperature v0.1.0 (/opt/rustwide/workdir/transfer_temperature) [INFO] [stderr] Checking my_box_demo v0.1.0 (/opt/rustwide/workdir/my_box_demo) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking channel_demo v0.1.0 (/opt/rustwide/workdir/channel_demo) [INFO] [stderr] Checking drop_trait_demo v0.1.0 (/opt/rustwide/workdir/drop_trait_demo) [INFO] [stderr] Checking fn_demo v0.1.0 (/opt/rustwide/workdir/fn_demo) [INFO] [stderr] Checking thread_demo v0.1.0 (/opt/rustwide/workdir/thread_demo) [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> drop_trait_demo/src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> drop_trait_demo/src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let d = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scores` [INFO] [stdout] --> hash_map_demo/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s = data.to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> rc_circle_demo/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 8 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` 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: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let s = "initial contents".to_string(); // 该方法也可直接用于字符串字面量： [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let s = String::from("initial contents"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> string_demo/src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let s3 = s1 + &s2; // 注意 s1 被移动了，不能继续使用 [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> string_demo/src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let s = format!("{}-{}-{}", s1, s2, s3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> rc_demo/src/main.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let b = Cons(3, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> rc_demo/src/main.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 16 | let c = Cons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> rc_demo/src/main.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | Cons(i32, Rc), [INFO] [stdout] | ---- ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 2 | Cons((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking error_handle_demo v0.1.0 (/opt/rustwide/workdir/error_handle_demo) [INFO] [stderr] Checking cargo_demo v0.1.0 (/opt/rustwide/workdir/cargo_demo) [INFO] [stderr] Checking slice_demo v0.1.0 (/opt/rustwide/workdir/slice_demo) [INFO] [stdout] warning: unused variable: `f1` [INFO] [stdout] --> error_handle_demo/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let f1 = match f { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_f1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f2` [INFO] [stdout] --> error_handle_demo/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let f2 = File::open("hello.txt").unwrap_or_else(|error| { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_f2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> slice_demo/src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut str = String::from("hello world"); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking http-body v1.0.0 [INFO] [stdout] warning: unused variable: `f1` [INFO] [stdout] --> error_handle_demo/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let f1 = match f { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_f1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f2` [INFO] [stdout] --> error_handle_demo/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let f2 = File::open("hello.txt").unwrap_or_else(|error| { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_f2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> slice_demo/src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut str = String::from("hello world"); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> drop_trait_demo/src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> drop_trait_demo/src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let d = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `area` is never used [INFO] [stdout] --> struct_demo/src/main.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 8 | fn area(self: &Self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking http-body-util v0.1.1 [INFO] [stderr] Compiling openssl-sys v0.9.102 [INFO] [stderr] Checking url v2.5.0 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking socket2 v0.5.6 [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 tokio v1.37.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking guessing_game_poen v0.1.1 (/opt/rustwide/workdir/guessing_game) [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling clap_derive v4.5.4 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking clap v4.5.4 [INFO] [stderr] Checking tokio-util v0.7.10 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking h2 v0.4.3 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking hyper v1.2.0 [INFO] [stderr] Checking hyper-util v0.1.3 [INFO] [stderr] Checking hyper-tls v0.6.0 [INFO] [stderr] Checking reqwest v0.12.2 [INFO] [stderr] Checking print_http_header v0.1.0 (/opt/rustwide/workdir/print_http_header) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.97s [INFO] running `Command { std: "docker" "inspect" "1f55c548913f7212b3c10acc076c0bb13af252689c670d68ef82b336de64dad3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f55c548913f7212b3c10acc076c0bb13af252689c670d68ef82b336de64dad3", kill_on_drop: false }` [INFO] [stdout] 1f55c548913f7212b3c10acc076c0bb13af252689c670d68ef82b336de64dad3