Dec 04 23:56:36.970 INFO testing zjw1918/proj-rust-minigrep against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 04 23:56:36.970 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 23:56:37.510 INFO [stdout] 2f282aca27701dabe208ec3cc8ee3b2306141018a7a21f251ee20b068dd40590
Dec 04 23:56:37.516 INFO running `"docker" "start" "-a" "2f282aca27701dabe208ec3cc8ee3b2306141018a7a21f251ee20b068dd40590"`
Dec 04 23:56:39.015 INFO [stderr] usermod: no changes
Dec 04 23:56:39.318 INFO [stderr]    Compiling version_check v0.1.4
Dec 04 23:56:39.320 INFO [stderr]    Compiling cfg-if v0.1.5
Dec 04 23:56:39.320 INFO [stderr]    Compiling rand_core v0.2.1
Dec 04 23:56:39.320 INFO [stderr]    Compiling lazycell v0.6.0
Dec 04 23:56:39.320 INFO [stderr]    Compiling futures v0.1.23
Dec 04 23:56:39.320 INFO [stderr]    Compiling cc v1.0.22
Dec 04 23:56:39.320 INFO [stderr]    Compiling pkg-config v0.3.13
Dec 04 23:56:39.320 INFO [stderr]    Compiling openssl v0.9.24
Dec 04 23:56:39.894 INFO [stderr]    Compiling httparse v1.3.2
Dec 04 23:56:40.500 INFO [stderr]    Compiling proc-macro2 v0.4.13
Dec 04 23:56:43.229 INFO [stderr]    Compiling bitflags v0.9.1
Dec 04 23:56:47.172 INFO [stderr]    Compiling try-lock v0.1.0
Dec 04 23:56:47.173 INFO [stderr]    Compiling scoped-tls v0.1.2
Dec 04 23:56:47.341 INFO [stderr]    Compiling serde v1.0.75
Dec 04 23:56:47.372 INFO [stderr]    Compiling lazy_static v0.2.11
Dec 04 23:56:47.429 INFO [stderr]    Compiling itoa v0.4.2
Dec 04 23:56:47.553 INFO [stderr]    Compiling rand v0.4.3
Dec 04 23:56:48.208 INFO [stderr]    Compiling net2 v0.2.33
Dec 04 23:56:48.680 INFO [stderr]    Compiling log v0.4.4
Dec 04 23:56:48.721 INFO [stderr]    Compiling encoding_rs v0.8.6
Dec 04 23:56:49.534 INFO [stderr]    Compiling rand v0.5.5
Dec 04 23:56:57.187 INFO [stderr]    Compiling lazy_static v1.1.0
Dec 04 23:56:57.256 INFO [stderr]    Compiling unicase v1.4.2
Dec 04 23:56:57.266 INFO [stderr]    Compiling unicase v2.1.0
Dec 04 23:56:57.595 INFO [stderr]    Compiling base64 v0.9.2
Dec 04 23:56:57.666 INFO [stderr]    Compiling lock_api v0.1.3
Dec 04 23:56:59.384 INFO [stderr]    Compiling bytes v0.4.9
Dec 04 23:57:00.031 INFO [stderr]    Compiling mio v0.6.15
Dec 04 23:57:00.152 INFO [stderr]    Compiling openssl-sys v0.9.35
Dec 04 23:57:03.324 INFO [stderr]    Compiling uuid v0.6.5
Dec 04 23:57:07.000 INFO [stderr]    Compiling parking_lot_core v0.2.14
Dec 04 23:57:07.199 INFO [stderr]    Compiling url v1.7.1
Dec 04 23:57:12.272 INFO [stderr]    Compiling tokio-executor v0.1.4
Dec 04 23:57:12.300 INFO [stderr]    Compiling want v0.0.4
Dec 04 23:57:12.382 INFO [stderr]    Compiling futures-cpupool v0.1.8
Dec 04 23:57:16.864 INFO [stderr]    Compiling relay v0.1.1
Dec 04 23:57:17.174 INFO [stderr]    Compiling tokio-service v0.1.0
Dec 04 23:57:17.417 INFO [stderr]    Compiling tokio-io v0.1.8
Dec 04 23:57:17.828 INFO [stderr]    Compiling quote v0.6.8
Dec 04 23:57:18.004 INFO [stderr]    Compiling mio-uds v0.6.6
Dec 04 23:57:18.125 INFO [stderr]    Compiling parking_lot v0.6.3
Dec 04 23:57:18.376 INFO [stderr]    Compiling tokio-current-thread v0.1.1
Dec 04 23:57:19.384 INFO [stderr]    Compiling tokio-timer v0.2.6
Dec 04 23:57:22.218 INFO [stderr]    Compiling libflate v0.1.16
Dec 04 23:57:22.277 INFO [stderr]    Compiling crossbeam-epoch v0.5.2
Dec 04 23:57:22.372 INFO [stderr]    Compiling phf_shared v0.7.23
Dec 04 23:57:23.708 INFO [stderr]    Compiling syn v0.14.9
Dec 04 23:57:23.750 INFO [stderr]    Compiling phf_generator v0.7.23
Dec 04 23:57:24.406 INFO [stderr]    Compiling phf v0.7.23
Dec 04 23:57:24.784 INFO [stderr]    Compiling tokio-codec v0.1.0
Dec 04 23:57:26.667 INFO [stderr]    Compiling tokio-reactor v0.1.4
Dec 04 23:57:26.685 INFO [stderr]    Compiling mime v0.3.9
Dec 04 23:57:26.687 INFO [stderr]    Compiling phf_codegen v0.7.23
Dec 04 23:57:26.693 INFO [stderr]    Compiling crossbeam-deque v0.6.1
Dec 04 23:57:27.876 INFO [stderr]    Compiling mime_guess v2.0.0-alpha.6
Dec 04 23:57:28.268 INFO [stderr]    Compiling tokio-threadpool v0.1.6
Dec 04 23:57:38.445 INFO [stderr]    Compiling tokio-tcp v0.1.1
Dec 04 23:57:38.560 INFO [stderr]    Compiling tokio-udp v0.1.2
Dec 04 23:57:38.568 INFO [stderr]    Compiling tokio-uds v0.2.1
Dec 04 23:57:38.868 INFO [stderr]    Compiling tokio-fs v0.1.3
Dec 04 23:57:44.096 INFO [stderr]    Compiling tokio v0.1.8
Dec 04 23:57:55.025 INFO [stderr]    Compiling native-tls v0.1.5
Dec 04 23:57:55.036 INFO [stderr]    Compiling serde_json v1.0.26
Dec 04 23:57:55.041 INFO [stderr]    Compiling serde_urlencoded v0.5.3
Dec 04 23:57:55.338 INFO [stderr]    Compiling tokio-core v0.1.17
Dec 04 23:57:55.414 INFO [stderr]    Compiling serde_derive v1.0.75
Dec 04 23:58:00.786 INFO [stderr]    Compiling tokio-tls v0.1.4
Dec 04 23:58:00.788 INFO [stderr]    Compiling hyper v0.11.27
Dec 04 23:58:16.292 INFO [stderr]    Compiling hyper-tls v0.1.4
Dec 04 23:58:16.762 INFO [stderr]    Compiling reqwest v0.8.8
Dec 04 23:58:23.648 INFO [stderr]    Compiling minigrep v0.1.0 (/source)
Dec 04 23:58:23.772 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 23:58:23.772 INFO [stderr]    --> src/lib.rs:167:9
Dec 04 23:58:23.772 INFO [stderr]     |
Dec 04 23:58:23.772 INFO [stderr] 167 |         /// 重要! for 给出work的引用（可变引用）
Dec 04 23:58:23.772 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:23.772 INFO [stderr]     |
Dec 04 23:58:23.772 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 04 23:58:23.772 INFO [stderr] 
Dec 04 23:58:25.224 INFO [stderr] warning: unused imports: `Cons`, `Nil`
Dec 04 23:58:25.224 INFO [stderr]  --> src/zjw_learn/smart_pointer.rs:1:19
Dec 04 23:58:25.224 INFO [stderr]   |
Dec 04 23:58:25.224 INFO [stderr] 1 | use self::List::{ Cons, Nil };
Dec 04 23:58:25.224 INFO [stderr]   |                   ^^^^  ^^^
Dec 04 23:58:25.224 INFO [stderr]   |
Dec 04 23:58:25.224 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:58:25.224 INFO [stderr] 
Dec 04 23:58:25.224 INFO [stderr] warning: unused imports: `ConsRc`, `NilRc`
Dec 04 23:58:25.224 INFO [stderr]  --> src/zjw_learn/smart_pointer.rs:2:21
Dec 04 23:58:25.224 INFO [stderr]   |
Dec 04 23:58:25.224 INFO [stderr] 2 | use self::ListRc::{ ConsRc, NilRc };
Dec 04 23:58:25.224 INFO [stderr]   |                     ^^^^^^  ^^^^^
Dec 04 23:58:25.224 INFO [stderr] 
Dec 04 23:58:25.224 INFO [stderr] warning: unused import: `mpsc`
Dec 04 23:58:25.224 INFO [stderr]  --> src/zjw_learn/concurrent.rs:2:17
Dec 04 23:58:25.224 INFO [stderr]   |
Dec 04 23:58:25.225 INFO [stderr] 2 | use std::sync::{mpsc, Mutex, Arc};
Dec 04 23:58:25.225 INFO [stderr]   |                 ^^^^
Dec 04 23:58:25.225 INFO [stderr] 
Dec 04 23:58:25.225 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 04 23:58:25.225 INFO [stderr]  --> src/zjw_learn/concurrent.rs:3:5
Dec 04 23:58:25.225 INFO [stderr]   |
Dec 04 23:58:25.225 INFO [stderr] 3 | use std::time::Duration;
Dec 04 23:58:25.225 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.225 INFO [stderr] 
Dec 04 23:58:25.225 INFO [stderr] warning: unused import: `std::error::Error`
Dec 04 23:58:25.225 INFO [stderr]  --> src/http_test.rs:3:5
Dec 04 23:58:25.225 INFO [stderr]   |
Dec 04 23:58:25.225 INFO [stderr] 3 | use std::error::Error;
Dec 04 23:58:25.225 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.225 INFO [stderr] 
Dec 04 23:58:25.225 INFO [stderr] warning: unused import: `std::io::Read`
Dec 04 23:58:25.225 INFO [stderr]  --> src/http_test.rs:4:5
Dec 04 23:58:25.225 INFO [stderr]   |
Dec 04 23:58:25.225 INFO [stderr] 4 | use std::io::Read;
Dec 04 23:58:25.225 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 23:58:25.225 INFO [stderr] 
Dec 04 23:58:25.588 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:25.588 INFO [stderr]  --> src/zjw_learn/closure.rs:5:1
Dec 04 23:58:25.588 INFO [stderr]   |
Dec 04 23:58:25.588 INFO [stderr] 5 | pub fn run() {
Dec 04 23:58:25.588 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 23:58:25.588 INFO [stderr]   |
Dec 04 23:58:25.588 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 23:58:25.588 INFO [stderr] 
Dec 04 23:58:25.588 INFO [stderr] warning: function is never used: `simulated_expensive_calculation`
Dec 04 23:58:25.588 INFO [stderr]   --> src/zjw_learn/closure.rs:29:1
Dec 04 23:58:25.588 INFO [stderr]    |
Dec 04 23:58:25.588 INFO [stderr] 29 | pub fn simulated_expensive_calculation(intensity: u32) -> u32 {
Dec 04 23:58:25.588 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.588 INFO [stderr] 
Dec 04 23:58:25.588 INFO [stderr] warning: function is never used: `generate_workout`
Dec 04 23:58:25.588 INFO [stderr]   --> src/zjw_learn/closure.rs:35:1
Dec 04 23:58:25.588 INFO [stderr]    |
Dec 04 23:58:25.588 INFO [stderr] 35 | pub fn generate_workout(intensity: u32, random_number: u32) {
Dec 04 23:58:25.588 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.588 INFO [stderr] 
Dec 04 23:58:25.588 INFO [stderr] warning: struct is never constructed: `Cacher`
Dec 04 23:58:25.588 INFO [stderr]   --> src/zjw_learn/closure.rs:75:1
Dec 04 23:58:25.588 INFO [stderr]    |
Dec 04 23:58:25.588 INFO [stderr] 75 | struct Cacher<T> where T: Fn(u32) -> u32 {
Dec 04 23:58:25.588 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.588 INFO [stderr] 
Dec 04 23:58:25.588 INFO [stderr] warning: method is never used: `new`
Dec 04 23:58:25.588 INFO [stderr]   --> src/zjw_learn/closure.rs:81:5
Dec 04 23:58:25.589 INFO [stderr]    |
Dec 04 23:58:25.589 INFO [stderr] 81 |     fn new(calculation: T) -> Cacher<T> {
Dec 04 23:58:25.589 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: method is never used: `value`
Dec 04 23:58:25.589 INFO [stderr]   --> src/zjw_learn/closure.rs:85:5
Dec 04 23:58:25.589 INFO [stderr]    |
Dec 04 23:58:25.589 INFO [stderr] 85 |     fn value(&mut self, arg: u32) -> u32 {
Dec 04 23:58:25.589 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: struct is never constructed: `Counter`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/closure.rs:150:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 150 | struct Counter {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: method is never used: `new`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/closure.rs:155:5
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 155 |     fn new() -> Counter {
Dec 04 23:58:25.589 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:25.589 INFO [stderr]  --> src/zjw_learn/smart_pointer.rs:9:1
Dec 04 23:58:25.589 INFO [stderr]   |
Dec 04 23:58:25.589 INFO [stderr] 9 | pub fn run() {
Dec 04 23:58:25.589 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: enum is never used: `List`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:102:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 102 | enum List {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: enum is never used: `ListRc`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:109:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 109 | enum ListRc {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: enum is never used: `ListRf`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:116:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 116 | enum ListRf {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: struct is never constructed: `MyBox`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:122:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 122 | struct MyBox<T>(T);
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: method is never used: `new`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:125:5
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 125 |     fn new(x: T) -> MyBox<T> {
Dec 04 23:58:25.589 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: struct is never constructed: `CustomSmartPointer`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:139:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 139 | struct CustomSmartPointer {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: struct is never constructed: `LimitTracker`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:154:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 154 | pub struct LimitTracker<'a, T: 'a + Messenger> {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: method is never used: `new`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:161:5
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 161 |     pub fn new(messenger: &T, max: usize) -> LimitTracker<T> {
Dec 04 23:58:25.589 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: method is never used: `set_value`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:167:5
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 167 |     pub fn set_value(&mut self, value: usize) {
Dec 04 23:58:25.589 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: enum is never used: `List1`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:217:1
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 217 | enum List1 {
Dec 04 23:58:25.589 INFO [stderr]     | ^^^^^^^^^^
Dec 04 23:58:25.589 INFO [stderr] 
Dec 04 23:58:25.589 INFO [stderr] warning: method is never used: `tail`
Dec 04 23:58:25.589 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:223:5
Dec 04 23:58:25.589 INFO [stderr]     |
Dec 04 23:58:25.589 INFO [stderr] 223 |     fn tail(&self) -> Option<&RefCell<Rc<List1>>> {
Dec 04 23:58:25.590 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: struct is never constructed: `Node`
Dec 04 23:58:25.590 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:233:1
Dec 04 23:58:25.590 INFO [stderr]     |
Dec 04 23:58:25.590 INFO [stderr] 233 | struct Node {
Dec 04 23:58:25.590 INFO [stderr]     | ^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:25.590 INFO [stderr]  --> src/zjw_learn/concurrent.rs:5:1
Dec 04 23:58:25.590 INFO [stderr]   |
Dec 04 23:58:25.590 INFO [stderr] 5 | pub fn run() {
Dec 04 23:58:25.590 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: foreign function is never used: `abs`
Dec 04 23:58:25.590 INFO [stderr]  --> src/zjw_learn/my_unsafe.rs:2:3
Dec 04 23:58:25.590 INFO [stderr]   |
Dec 04 23:58:25.590 INFO [stderr] 2 |   fn abs(input: i32) -> i32;
Dec 04 23:58:25.590 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:14:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 14 | pub fn run() {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `danger`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:41:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 41 | unsafe fn danger() {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `split_at_mut`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:53:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 53 | fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: struct is never constructed: `Context`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:64:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 64 | struct Context<'s>(&'s str);
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:65:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 65 | struct Parser<'a, 's: 'a> {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: method is never used: `parse`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:69:3
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 69 |   fn parse(&self) -> Result<(), &'s str> {
Dec 04 23:58:25.590 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `test_parse`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:74:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 74 | fn test_parse(context: Context) -> Result<(), &str> {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/server.rs:12:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 12 | pub fn run() {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `handle_connection`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/server.rs:26:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 26 | fn handle_connection(mut stream: TcpStream) {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `run_learn_closure`
Dec 04 23:58:25.590 INFO [stderr]  --> src/zjw_learn/mod.rs:7:1
Dec 04 23:58:25.590 INFO [stderr]   |
Dec 04 23:58:25.590 INFO [stderr] 7 | pub fn run_learn_closure() {
Dec 04 23:58:25.590 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `run_learn_smart_pointer`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/mod.rs:11:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.590 INFO [stderr] 11 | pub fn run_learn_smart_pointer() {
Dec 04 23:58:25.590 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.590 INFO [stderr] 
Dec 04 23:58:25.590 INFO [stderr] warning: function is never used: `run_learn_concurrent`
Dec 04 23:58:25.590 INFO [stderr]   --> src/zjw_learn/mod.rs:15:1
Dec 04 23:58:25.590 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 15 | pub fn run_learn_concurrent() {
Dec 04 23:58:25.591 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:25.591 INFO [stderr] warning: function is never used: `run_learn_unsafe`
Dec 04 23:58:25.591 INFO [stderr]   --> src/zjw_learn/mod.rs:19:1
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 19 | pub fn run_learn_unsafe() {
Dec 04 23:58:25.591 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:25.591 INFO [stderr] warning: function is never used: `run_learn_server`
Dec 04 23:58:25.591 INFO [stderr]   --> src/zjw_learn/mod.rs:23:1
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 23 | pub fn run_learn_server() {
Dec 04 23:58:25.591 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:25.591 INFO [stderr] warning: function is never used: `learn_minigrep`
Dec 04 23:58:25.591 INFO [stderr]   --> src/main.rs:25:1
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 25 | fn learn_minigrep() {
Dec 04 23:58:25.591 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:25.591 INFO [stderr] warning: path statement with no effect
Dec 04 23:58:25.591 INFO [stderr]   --> src/zjw_learn/smart_pointer.rs:89:9
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 89 |         branch; // 强制使branch过期
Dec 04 23:58:25.591 INFO [stderr]    |         ^^^^^^^
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr]    = note: #[warn(path_statements)] on by default
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:25.591 INFO [stderr] warning: structure field `objectId` should have a snake case name such as `object_id`
Dec 04 23:58:25.591 INFO [stderr]   --> src/http_test.rs:12:5
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 12 |     objectId: String,
Dec 04 23:58:25.591 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:25.591 INFO [stderr] warning: structure field `ringData` should have a snake case name such as `ring_data`
Dec 04 23:58:25.591 INFO [stderr]   --> src/http_test.rs:13:5
Dec 04 23:58:25.591 INFO [stderr]    |
Dec 04 23:58:25.591 INFO [stderr] 13 |     ringData: String,
Dec 04 23:58:25.591 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 23:58:25.591 INFO [stderr] 
Dec 04 23:58:29.357 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
Dec 04 23:58:29.371 INFO [stderr] su: No module specific data is present
Dec 04 23:58:29.946 INFO running `"docker" "inspect" "2f282aca27701dabe208ec3cc8ee3b2306141018a7a21f251ee20b068dd40590"`
Dec 04 23:58:30.282 INFO running `"docker" "rm" "-f" "2f282aca27701dabe208ec3cc8ee3b2306141018a7a21f251ee20b068dd40590"`
Dec 04 23:58:30.624 INFO [stdout] 2f282aca27701dabe208ec3cc8ee3b2306141018a7a21f251ee20b068dd40590
Dec 04 23:58:30.632 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 23:58:30.943 INFO [stdout] 7a2a0e00b3506dcbd55cbadb3850ce995a44f885c26802f71eeb3adb750e3ef4
Dec 04 23:58:30.946 INFO running `"docker" "start" "-a" "7a2a0e00b3506dcbd55cbadb3850ce995a44f885c26802f71eeb3adb750e3ef4"`
Dec 04 23:58:31.322 INFO [stderr] usermod: no changes
Dec 04 23:58:31.472 INFO [stderr]    Compiling minigrep v0.1.0 (/source)
Dec 04 23:58:31.560 INFO [stderr] warning: doc comment not used by rustdoc
Dec 04 23:58:31.560 INFO [stderr]    --> src/lib.rs:167:9
Dec 04 23:58:31.560 INFO [stderr]     |
Dec 04 23:58:31.560 INFO [stderr] 167 |         /// 重要! for 给出work的引用（可变引用）
Dec 04 23:58:31.560 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:31.560 INFO [stderr]     |
Dec 04 23:58:31.560 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 04 23:58:31.560 INFO [stderr] 
Dec 04 23:58:31.776 INFO [stderr] warning: unused imports: `Cons`, `Nil`
Dec 04 23:58:31.777 INFO [stderr]  --> src/zjw_learn/smart_pointer.rs:1:19
Dec 04 23:58:31.777 INFO [stderr]   |
Dec 04 23:58:31.778 INFO [stderr] 1 | use self::List::{ Cons, Nil };
Dec 04 23:58:31.778 INFO [stderr]   |                   ^^^^  ^^^
Dec 04 23:58:31.778 INFO [stderr]   |
Dec 04 23:58:31.778 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:58:31.779 INFO [stderr] 
Dec 04 23:58:31.779 INFO [stderr] warning: unused imports: `ConsRc`, `NilRc`
Dec 04 23:58:31.779 INFO [stderr]  --> src/zjw_learn/smart_pointer.rs:2:21
Dec 04 23:58:31.780 INFO [stderr]   |
Dec 04 23:58:31.780 INFO [stderr] 2 | use self::ListRc::{ ConsRc, NilRc };
Dec 04 23:58:31.780 INFO [stderr]   |                     ^^^^^^  ^^^^^
Dec 04 23:58:31.781 INFO [stderr] 
Dec 04 23:58:31.783 INFO [stderr] warning: unused import: `mpsc`
Dec 04 23:58:31.783 INFO [stderr]  --> src/zjw_learn/concurrent.rs:2:17
Dec 04 23:58:31.783 INFO [stderr]   |
Dec 04 23:58:31.783 INFO [stderr] 2 | use std::sync::{mpsc, Mutex, Arc};
Dec 04 23:58:31.783 INFO [stderr]   |                 ^^^^
Dec 04 23:58:31.783 INFO [stderr] 
Dec 04 23:58:31.784 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 04 23:58:31.784 INFO [stderr]  --> src/zjw_learn/concurrent.rs:3:5
Dec 04 23:58:31.784 INFO [stderr]   |
Dec 04 23:58:31.784 INFO [stderr] 3 | use std::time::Duration;
Dec 04 23:58:31.784 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:31.784 INFO [stderr] 
Dec 04 23:58:31.784 INFO [stderr] warning: unused import: `std::error::Error`
Dec 04 23:58:31.784 INFO [stderr]  --> src/http_test.rs:3:5
Dec 04 23:58:31.784 INFO [stderr]   |
Dec 04 23:58:31.784 INFO [stderr] 3 | use std::error::Error;
Dec 04 23:58:31.784 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 23:58:31.784 INFO [stderr] 
Dec 04 23:58:31.784 INFO [stderr] warning: unused import: `std::io::Read`
Dec 04 23:58:31.784 INFO [stderr]  --> src/http_test.rs:4:5
Dec 04 23:58:31.784 INFO [stderr]   |
Dec 04 23:58:31.784 INFO [stderr] 4 | use std::io::Read;
Dec 04 23:58:31.784 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 23:58:31.784 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:32.206 INFO [stderr]  --> src/zjw_learn/closure.rs:5:1
Dec 04 23:58:32.206 INFO [stderr]   |
Dec 04 23:58:32.206 INFO [stderr] 5 | pub fn run() {
Dec 04 23:58:32.206 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr]   |
Dec 04 23:58:32.206 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: function is never used: `simulated_expensive_calculation`
Dec 04 23:58:32.206 INFO [stderr]   --> src/zjw_learn/closure.rs:29:1
Dec 04 23:58:32.206 INFO [stderr]    |
Dec 04 23:58:32.206 INFO [stderr] 29 | pub fn simulated_expensive_calculation(intensity: u32) -> u32 {
Dec 04 23:58:32.206 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: function is never used: `generate_workout`
Dec 04 23:58:32.206 INFO [stderr]   --> src/zjw_learn/closure.rs:35:1
Dec 04 23:58:32.206 INFO [stderr]    |
Dec 04 23:58:32.206 INFO [stderr] 35 | pub fn generate_workout(intensity: u32, random_number: u32) {
Dec 04 23:58:32.206 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: struct is never constructed: `Counter`
Dec 04 23:58:32.206 INFO [stderr]    --> src/zjw_learn/closure.rs:150:1
Dec 04 23:58:32.206 INFO [stderr]     |
Dec 04 23:58:32.206 INFO [stderr] 150 | struct Counter {
Dec 04 23:58:32.206 INFO [stderr]     | ^^^^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: method is never used: `new`
Dec 04 23:58:32.206 INFO [stderr]    --> src/zjw_learn/closure.rs:155:5
Dec 04 23:58:32.206 INFO [stderr]     |
Dec 04 23:58:32.206 INFO [stderr] 155 |     fn new() -> Counter {
Dec 04 23:58:32.206 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:32.206 INFO [stderr]  --> src/zjw_learn/smart_pointer.rs:9:1
Dec 04 23:58:32.206 INFO [stderr]   |
Dec 04 23:58:32.206 INFO [stderr] 9 | pub fn run() {
Dec 04 23:58:32.206 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: enum is never used: `List`
Dec 04 23:58:32.206 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:102:1
Dec 04 23:58:32.206 INFO [stderr]     |
Dec 04 23:58:32.206 INFO [stderr] 102 | enum List {
Dec 04 23:58:32.206 INFO [stderr]     | ^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: enum is never used: `ListRc`
Dec 04 23:58:32.206 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:109:1
Dec 04 23:58:32.206 INFO [stderr]     |
Dec 04 23:58:32.206 INFO [stderr] 109 | enum ListRc {
Dec 04 23:58:32.206 INFO [stderr]     | ^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.206 INFO [stderr] warning: enum is never used: `ListRf`
Dec 04 23:58:32.206 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:116:1
Dec 04 23:58:32.206 INFO [stderr]     |
Dec 04 23:58:32.206 INFO [stderr] 116 | enum ListRf {
Dec 04 23:58:32.206 INFO [stderr]     | ^^^^^^^^^^^
Dec 04 23:58:32.206 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: struct is never constructed: `MyBox`
Dec 04 23:58:32.207 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:122:1
Dec 04 23:58:32.207 INFO [stderr]     |
Dec 04 23:58:32.207 INFO [stderr] 122 | struct MyBox<T>(T);
Dec 04 23:58:32.207 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: method is never used: `new`
Dec 04 23:58:32.207 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:125:5
Dec 04 23:58:32.207 INFO [stderr]     |
Dec 04 23:58:32.207 INFO [stderr] 125 |     fn new(x: T) -> MyBox<T> {
Dec 04 23:58:32.207 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: struct is never constructed: `CustomSmartPointer`
Dec 04 23:58:32.207 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:139:1
Dec 04 23:58:32.207 INFO [stderr]     |
Dec 04 23:58:32.207 INFO [stderr] 139 | struct CustomSmartPointer {
Dec 04 23:58:32.207 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: enum is never used: `List1`
Dec 04 23:58:32.207 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:217:1
Dec 04 23:58:32.207 INFO [stderr]     |
Dec 04 23:58:32.207 INFO [stderr] 217 | enum List1 {
Dec 04 23:58:32.207 INFO [stderr]     | ^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: method is never used: `tail`
Dec 04 23:58:32.207 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:223:5
Dec 04 23:58:32.207 INFO [stderr]     |
Dec 04 23:58:32.207 INFO [stderr] 223 |     fn tail(&self) -> Option<&RefCell<Rc<List1>>> {
Dec 04 23:58:32.207 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: struct is never constructed: `Node`
Dec 04 23:58:32.207 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:233:1
Dec 04 23:58:32.207 INFO [stderr]     |
Dec 04 23:58:32.207 INFO [stderr] 233 | struct Node {
Dec 04 23:58:32.207 INFO [stderr]     | ^^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:32.207 INFO [stderr]  --> src/zjw_learn/concurrent.rs:5:1
Dec 04 23:58:32.207 INFO [stderr]   |
Dec 04 23:58:32.207 INFO [stderr] 5 | pub fn run() {
Dec 04 23:58:32.207 INFO [stderr]   | ^^^^^^^^^^^^
Dec 04 23:58:32.207 INFO [stderr] 
Dec 04 23:58:32.207 INFO [stderr] warning: foreign function is never used: `abs`
Dec 04 23:58:32.207 INFO [stderr]  --> src/zjw_learn/my_unsafe.rs:2:3
Dec 04 23:58:32.207 INFO [stderr]   |
Dec 04 23:58:32.207 INFO [stderr] 2 |   fn abs(input: i32) -> i32;
Dec 04 23:58:32.207 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:14:1
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.208 INFO [stderr] 14 | pub fn run() {
Dec 04 23:58:32.208 INFO [stderr]    | ^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: function is never used: `danger`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:41:1
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.208 INFO [stderr] 41 | unsafe fn danger() {
Dec 04 23:58:32.208 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: function is never used: `split_at_mut`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:53:1
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.208 INFO [stderr] 53 | fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
Dec 04 23:58:32.208 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: struct is never constructed: `Context`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:64:1
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.208 INFO [stderr] 64 | struct Context<'s>(&'s str);
Dec 04 23:58:32.208 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: struct is never constructed: `Parser`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:65:1
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.208 INFO [stderr] 65 | struct Parser<'a, 's: 'a> {
Dec 04 23:58:32.208 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: method is never used: `parse`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:69:3
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.208 INFO [stderr] 69 |   fn parse(&self) -> Result<(), &'s str> {
Dec 04 23:58:32.208 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.208 INFO [stderr] 
Dec 04 23:58:32.208 INFO [stderr] warning: function is never used: `test_parse`
Dec 04 23:58:32.208 INFO [stderr]   --> src/zjw_learn/my_unsafe.rs:74:1
Dec 04 23:58:32.208 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 74 | fn test_parse(context: Context) -> Result<(), &str> {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `run`
Dec 04 23:58:32.209 INFO [stderr]   --> src/zjw_learn/server.rs:12:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 12 | pub fn run() {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `handle_connection`
Dec 04 23:58:32.209 INFO [stderr]   --> src/zjw_learn/server.rs:26:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 26 | fn handle_connection(mut stream: TcpStream) {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `run_learn_closure`
Dec 04 23:58:32.209 INFO [stderr]  --> src/zjw_learn/mod.rs:7:1
Dec 04 23:58:32.209 INFO [stderr]   |
Dec 04 23:58:32.209 INFO [stderr] 7 | pub fn run_learn_closure() {
Dec 04 23:58:32.209 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `run_learn_smart_pointer`
Dec 04 23:58:32.209 INFO [stderr]   --> src/zjw_learn/mod.rs:11:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 11 | pub fn run_learn_smart_pointer() {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `run_learn_concurrent`
Dec 04 23:58:32.209 INFO [stderr]   --> src/zjw_learn/mod.rs:15:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 15 | pub fn run_learn_concurrent() {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `run_learn_unsafe`
Dec 04 23:58:32.209 INFO [stderr]   --> src/zjw_learn/mod.rs:19:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 19 | pub fn run_learn_unsafe() {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `run_learn_server`
Dec 04 23:58:32.209 INFO [stderr]   --> src/zjw_learn/mod.rs:23:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 23 | pub fn run_learn_server() {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.209 INFO [stderr] warning: function is never used: `learn_minigrep`
Dec 04 23:58:32.209 INFO [stderr]   --> src/main.rs:25:1
Dec 04 23:58:32.209 INFO [stderr]    |
Dec 04 23:58:32.209 INFO [stderr] 25 | fn learn_minigrep() {
Dec 04 23:58:32.209 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 04 23:58:32.209 INFO [stderr] 
Dec 04 23:58:32.211 INFO [stderr] warning: path statement with no effect
Dec 04 23:58:32.211 INFO [stderr]   --> src/zjw_learn/smart_pointer.rs:89:9
Dec 04 23:58:32.211 INFO [stderr]    |
Dec 04 23:58:32.211 INFO [stderr] 89 |         branch; // 强制使branch过期
Dec 04 23:58:32.211 INFO [stderr]    |         ^^^^^^^
Dec 04 23:58:32.211 INFO [stderr]    |
Dec 04 23:58:32.211 INFO [stderr]    = note: #[warn(path_statements)] on by default
Dec 04 23:58:32.211 INFO [stderr] 
Dec 04 23:58:32.212 INFO [stderr] warning: variable `limitTracker` should have a snake case name such as `limit_tracker`
Dec 04 23:58:32.212 INFO [stderr]    --> src/zjw_learn/smart_pointer.rs:208:13
Dec 04 23:58:32.212 INFO [stderr]     |
Dec 04 23:58:32.212 INFO [stderr] 208 |         let mut limitTracker = LimitTracker::new(&mock_messenger, 100);
Dec 04 23:58:32.212 INFO [stderr]     |             ^^^^^^^^^^^^^^^^
Dec 04 23:58:32.212 INFO [stderr]     |
Dec 04 23:58:32.212 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 04 23:58:32.212 INFO [stderr] 
Dec 04 23:58:32.213 INFO [stderr] warning: structure field `objectId` should have a snake case name such as `object_id`
Dec 04 23:58:32.213 INFO [stderr]   --> src/http_test.rs:12:5
Dec 04 23:58:32.213 INFO [stderr]    |
Dec 04 23:58:32.213 INFO [stderr] 12 |     objectId: String,
Dec 04 23:58:32.213 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 23:58:32.213 INFO [stderr] 
Dec 04 23:58:32.213 INFO [stderr] warning: structure field `ringData` should have a snake case name such as `ring_data`
Dec 04 23:58:32.213 INFO [stderr]   --> src/http_test.rs:13:5
Dec 04 23:58:32.213 INFO [stderr]    |
Dec 04 23:58:32.213 INFO [stderr] 13 |     ringData: String,
Dec 04 23:58:32.213 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 23:58:32.213 INFO [stderr] 
Dec 04 23:58:33.688 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.35s
Dec 04 23:58:33.699 INFO [stderr] su: No module specific data is present
Dec 04 23:58:33.973 INFO running `"docker" "inspect" "7a2a0e00b3506dcbd55cbadb3850ce995a44f885c26802f71eeb3adb750e3ef4"`
Dec 04 23:58:34.132 INFO running `"docker" "rm" "-f" "7a2a0e00b3506dcbd55cbadb3850ce995a44f885c26802f71eeb3adb750e3ef4"`
Dec 04 23:58:34.388 INFO [stdout] 7a2a0e00b3506dcbd55cbadb3850ce995a44f885c26802f71eeb3adb750e3ef4
Dec 04 23:58:34.394 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 23:58:34.639 INFO [stdout] bba716d1b4754712d038ffef2bbb15a76be2d0f6c38cedb3915eff2ce6c1fe43
Dec 04 23:58:34.641 INFO running `"docker" "start" "-a" "bba716d1b4754712d038ffef2bbb15a76be2d0f6c38cedb3915eff2ce6c1fe43"`
Dec 04 23:58:34.960 INFO [stderr] usermod: no changes
Dec 04 23:58:35.093 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
Dec 04 23:58:35.100 INFO [stderr]      Running /target/debug/deps/minigrep-ec0c44146ca98d00
Dec 04 23:58:35.102 INFO [stdout] 
Dec 04 23:58:35.102 INFO [stdout] running 2 tests
Dec 04 23:58:35.102 INFO [stdout] test test::case_sensitive ... ok
Dec 04 23:58:35.102 INFO [stdout] test test::case_insensitive ... ok
Dec 04 23:58:35.102 INFO [stdout] 
Dec 04 23:58:35.102 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 04 23:58:35.102 INFO [stdout] 
Dec 04 23:58:35.103 INFO [stderr]      Running /target/debug/deps/minigrep-d7e73625c02a89e0
Dec 04 23:58:35.106 INFO [stdout] 
Dec 04 23:58:35.106 INFO [stdout] running 4 tests
Dec 04 23:58:35.106 INFO [stdout] test zjw_learn::closure::call_with_different_values ... ok
Dec 04 23:58:35.106 INFO [stdout] test zjw_learn::closure::test_shoes_filter ... ok
Dec 04 23:58:35.106 INFO [stdout] test zjw_learn::closure::tierator_demonstration ... ok
Dec 04 23:58:35.106 INFO [stdout] test zjw_learn::smart_pointer::tests::it_sends_an_over_75_percent_warning_message ... ok
Dec 04 23:58:35.106 INFO [stdout] 
Dec 04 23:58:35.106 INFO [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 04 23:58:35.106 INFO [stdout] 
Dec 04 23:58:35.106 INFO [stderr]    Doc-tests minigrep
Dec 04 23:58:35.175 INFO [stdout] 
Dec 04 23:58:35.175 INFO [stdout] running 0 tests
Dec 04 23:58:35.175 INFO [stdout] 
Dec 04 23:58:35.175 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 04 23:58:35.175 INFO [stdout] 
Dec 04 23:58:35.181 INFO [stderr] su: No module specific data is present
Dec 04 23:58:35.402 INFO running `"docker" "inspect" "bba716d1b4754712d038ffef2bbb15a76be2d0f6c38cedb3915eff2ce6c1fe43"`
Dec 04 23:58:35.483 INFO running `"docker" "rm" "-f" "bba716d1b4754712d038ffef2bbb15a76be2d0f6c38cedb3915eff2ce6c1fe43"`
Dec 04 23:58:35.552 INFO [stdout] bba716d1b4754712d038ffef2bbb15a76be2d0f6c38cedb3915eff2ce6c1fe43