[INFO] cloning repository https://github.com/yynlove/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yynlove/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyynlove%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyynlove%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f33abe86441726cd21adc5f2d49eae8b25e46387
[INFO] checking yynlove/rust_study against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyynlove%2Frust_study" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yynlove/rust_study on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yynlove/rust_study
[INFO] finished tweaking git repo https://github.com/yynlove/rust_study
[INFO] tweaked toml for git repo https://github.com/yynlove/rust_study written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/yynlove/rust_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.release
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 978b288ba7ae6e0646c513e7099737382a49a912ee4e4ffbaa762cb3cd3ff6ac
[INFO] running `Command { std: "docker" "start" "-a" "978b288ba7ae6e0646c513e7099737382a49a912ee4e4ffbaa762cb3cd3ff6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "978b288ba7ae6e0646c513e7099737382a49a912ee4e4ffbaa762cb3cd3ff6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978b288ba7ae6e0646c513e7099737382a49a912ee4e4ffbaa762cb3cd3ff6ac", kill_on_drop: false }`
[INFO] [stdout] 978b288ba7ae6e0646c513e7099737382a49a912ee4e4ffbaa762cb3cd3ff6ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c568be4092f0e8e361898afa979a3f365fae9fb5a92cdf273eb3c2c58fe6b32
[INFO] running `Command { std: "docker" "start" "-a" "9c568be4092f0e8e361898afa979a3f365fae9fb5a92cdf273eb3c2c58fe6b32", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.release
[INFO] [stderr]     Checking rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `it_works` is defined multiple times
[INFO] [stdout]   --> src/tests.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn it_works() {
[INFO] [stdout]    |     ------------- previous definition of the value `it_works` here
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn it_works() -> Result<(), String> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `it_works` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `it_works` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/my_mod/jiu.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{ErrorKind, Read};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::my_mod::shi::build`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::my_mod::shi::build;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/my_mod/jiu.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{ErrorKind, Read};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::my_mod::shi::build`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::my_mod::shi::build;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_study` due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `six`
[INFO] [stdout]   --> src/my_mod/ip.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let six = plus_one(five);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_six`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `none`
[INFO] [stdout]   --> src/my_mod/ip.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let none = plus_one(None);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bfile`
[INFO] [stdout]  --> src/my_mod/jiu.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |   let bfile = match a {
[INFO] [stdout]   |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_bfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/my_mod/jiu.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let a =  File::open("aaa.text").unwrap();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/my_mod/jiu.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let a =  File::open("aaa.text").expect("");
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `optionTest`
[INFO] [stdout]   --> src/my_mod/ip.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn optionTest(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option_panic_Test`
[INFO] [stdout]   --> src/my_mod/ip.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn option_panic_Test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `plus_one`
[INFO] [stdout]   --> src/my_mod/ip.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn plus_one(x:Option<i32>) -> Option<i32>{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]  --> src/my_mod/refence.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change_reference`
[INFO] [stdout]   --> src/my_mod/refence.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn change_reference(some_string: &mut String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_sturct_demo`
[INFO] [stdout]  --> src/my_mod/struct_demo.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn test_sturct_demo(){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/my_mod/struct_demo.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn square(size:u32)-> Rectangle{
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `setHeight`
[INFO] [stdout]   --> src/my_mod/struct_demo.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn setHeight(&mut self,height:u32){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `area`
[INFO] [stdout]   --> src/my_mod/struct_demo.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn area(&self) -> u32{
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> src/my_mod/struct_demo.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rus`
[INFO] [stdout]  --> src/my_mod/jiu.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn rus() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rus_unwrap`
[INFO] [stdout]   --> src/my_mod/jiu.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn rus_unwrap(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rus_expect`
[INFO] [stdout]   --> src/my_mod/jiu.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn rus_expect(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_from_file`
[INFO] [stdout]   --> src/my_mod/jiu.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn read_from_file()->Result<String,io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_from_file_jianxie`
[INFO] [stdout]   --> src/my_mod/jiu.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn read_from_file_jianxie()->Result<String,io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/my_mod/shi.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point<T,U>{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mixup`
[INFO] [stdout]  --> src/my_mod/shi.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn mixup<V,W>(self,other:Point<V,W>)->Point<T,W>{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build`
[INFO] [stdout]   --> src/my_mod/shi.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn build(){
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `summary_tweet_test`
[INFO] [stdout]   --> src/my_mod/shi.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn summary_tweet_test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]   --> src/my_mod/shi.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trait_fanxing`
[INFO] [stdout]   --> src/my_mod/shi.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn trait_fanxing() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest_test_error`
[INFO] [stdout]    --> src/my_mod/shi.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn longest_test_error(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `optionTest` should have a snake case name
[INFO] [stdout]   --> src/my_mod/ip.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn optionTest(){
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `option_test`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `option_panic_Test` should have a snake case name
[INFO] [stdout]   --> src/my_mod/ip.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn option_panic_Test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `option_panic_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `setHeight` should have a snake case name
[INFO] [stdout]   --> src/my_mod/struct_demo.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn setHeight(&mut self,height:u32){
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `set_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 32 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9c568be4092f0e8e361898afa979a3f365fae9fb5a92cdf273eb3c2c58fe6b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c568be4092f0e8e361898afa979a3f365fae9fb5a92cdf273eb3c2c58fe6b32", kill_on_drop: false }`
[INFO] [stdout] 9c568be4092f0e8e361898afa979a3f365fae9fb5a92cdf273eb3c2c58fe6b32