[INFO] cloning repository https://github.com/hongweipeng/learn_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hongweipeng/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhongweipeng%2Flearn_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhongweipeng%2Flearn_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a1812d5590980e026925b7461faa5ffaf3a13539 [INFO] checking hongweipeng/learn_rust against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhongweipeng%2Flearn_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hongweipeng/learn_rust on toolchain 18a6d911caba59605eb03db1452848a85d2e5879 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/hongweipeng/learn_rust [INFO] finished tweaking git repo https://github.com/hongweipeng/learn_rust [INFO] tweaked toml for git repo https://github.com/hongweipeng/learn_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hongweipeng/learn_rust 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" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... 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Checking hyper v0.14.26 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.18 [INFO] [stdout] warning: unused import: `PageUnload` [INFO] [stdout] --> tests/test_custom_struct.rs:163:20 [INFO] [stdout] | [INFO] [stdout] 163 | use WebEvent::{PageUnload, PageLoad}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> tests/test_http_client.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pressed` [INFO] [stdout] --> tests/test_custom_struct.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 157 | let pressed = WebOperations::KeyPress('x'); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pressed` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pressed` [INFO] [stdout] --> tests/test_custom_struct.rs:164:9 [INFO] [stdout] | [INFO] [stdout] 164 | let pressed = PageLoad; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pressed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> tests/test_option_match.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let c = b; [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: 3 warnings emitted [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: unused variable: `bytes` [INFO] [stdout] --> tests/test_prost.rs:24:7 [INFO] [stdout] | [INFO] [stdout] 24 | let bytes = person.encode_to_vec(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `red`, `green`, and `blue` are never read [INFO] [stdout] --> tests/test_str_format.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 67 | struct Color { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 68 | red: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 69 | green: u8, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 70 | blue: u8, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Color` 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> tests/test_control_flow.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used [INFO] [stdout] --> tests/test_var_declare.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let mut inferred_type = 12; // 根据下一行的赋值推断为 i64 类型 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_inferred_type` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `inferred_type` is never read [INFO] [stdout] --> tests/test_var_declare.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | inferred_type = 4294967296i64; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `logical` [INFO] [stdout] --> tests/test_var_declare.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let logical: bool = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `an_integer` [INFO] [stdout] --> tests/test_var_declare.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let an_integer = 5i32; // 后缀说明 [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable` is assigned to, but never used [INFO] [stdout] --> tests/test_var_declare.rs:22:13 [INFO] [stdout] | [INFO] [stdout] 22 | let mut mutable = 12; // Mutable `i32` [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_mutable` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable` is never read [INFO] [stdout] --> tests/test_var_declare.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | mutable = 21; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arr` [INFO] [stdout] --> tests/test_var_declare.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let arr = [3, 3, 3, 3]; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_to_waitlist` is never used [INFO] [stdout] --> tests/test_package_crate_module.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | fn add_to_waitlist() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> tests/test_package_crate_module.rs:44:12 [INFO] [stdout] | [INFO] [stdout] 44 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> tests/test_package_crate_module.rs:48:12 [INFO] [stdout] | [INFO] [stdout] 48 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> tests/test_package_crate_module.rs:50:12 [INFO] [stdout] | [INFO] [stdout] 50 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> tests/test_package_crate_module.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 52 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `NUM` is never used [INFO] [stdout] --> tests/test_var_declare.rs:42:11 [INFO] [stdout] | [INFO] [stdout] 42 | const NUM : i32 = 5; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `NUM` is never used [INFO] [stdout] --> tests/test_var_declare.rs:63:12 [INFO] [stdout] | [INFO] [stdout] 63 | static NUM: i32 = 100; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> tests/test_control_flow.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 73 | break 'outer; // 退出 'outer 的循环 [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] 74 | } [INFO] [stdout] 75 | count = 4; // 这行不会执行 [INFO] [stdout] | ^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::eq` [INFO] [stdout] --> tests/test_builtin_data_type.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ptr::eq; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Index` [INFO] [stdout] --> tests/test_ownership.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::ops::Index; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> tests/test_control_flow.rs:68:17 [INFO] [stdout] | [INFO] [stdout] 68 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> tests/test_control_flow.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | count = 2; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> tests/test_control_flow.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | count = 4; // 这行不会执行 [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> tests/test_builtin_data_type.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | let num = 18; // 会默认使用 i32 类型 [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> tests/test_builtin_data_type.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let num : i64 = 18; // 指定具体类型 [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> tests/test_builtin_data_type.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let num = 18i64; // 除了 byte 类型外，所有字面值都允许使用类型后缀 [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> tests/test_builtin_data_type.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let num = 0xff; // 0x 前缀十六进制 [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> tests/test_builtin_data_type.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let num = 0o77; // 0o 前缀八进制 [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> tests/test_builtin_data_type.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let num = 0b1111_0000; // 0b 二进制 [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> tests/test_builtin_data_type.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let byte = b'A'; // 字节，只能声明为 u8 类型 [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `money` [INFO] [stdout] --> tests/test_builtin_data_type.rs:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | let money = 2.0; // 默认使用 f64 [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_money` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> tests/test_builtin_data_type.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | let ch = 'z'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> tests/test_builtin_data_type.rs:147:9 [INFO] [stdout] | [INFO] [stdout] 147 | let ch : char = '中'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> tests/test_builtin_data_type.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | let ch : char = '\0'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> tests/test_builtin_data_type.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | let ch : char = '\n'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> tests/test_builtin_data_type.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | let ch : char = '😊'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `empty` [INFO] [stdout] --> tests/test_builtin_data_type.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | let empty = (); // 空元组 [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_empty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tup` [INFO] [stdout] --> tests/test_builtin_data_type.rs:161:9 [INFO] [stdout] | [INFO] [stdout] 161 | let tup = (500, 6.4, true); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tup` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `too_long_tuple` [INFO] [stdout] --> tests/test_builtin_data_type.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | let too_long_tuple = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_too_long_tuple` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> tests/test_builtin_data_type.rs:203:9 [INFO] [stdout] | [INFO] [stdout] 203 | let a = [3; 5]; // 等价于 let a = [3, 3, 3, 3, 3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/test_ownership.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | let mut s = String::from("hello"); [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: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 25.46s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "6d95e7bcf8b3da78acb11250e3a0b2e8c1b0f6114c36cfd4f7e1fe3ee855a5fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d95e7bcf8b3da78acb11250e3a0b2e8c1b0f6114c36cfd4f7e1fe3ee855a5fc", kill_on_drop: false }` [INFO] [stdout] 6d95e7bcf8b3da78acb11250e3a0b2e8c1b0f6114c36cfd4f7e1fe3ee855a5fc