[INFO] fetching crate htqx_minigrep 1.0.0...
[INFO] checking htqx_minigrep-1.0.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate htqx_minigrep 1.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate htqx_minigrep 1.0.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate htqx_minigrep 1.0.0
[INFO] finished tweaking crates.io crate htqx_minigrep 1.0.0
[INFO] tweaked toml for crates.io crate htqx_minigrep 1.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1c4bb3399c96767ec32acabc0e8ffa8dd5d42a774fd51eb0cf40e2cb520f84a
[INFO] running `"docker" "start" "-a" "a1c4bb3399c96767ec32acabc0e8ffa8dd5d42a774fd51eb0cf40e2cb520f84a"`
[INFO] [stderr]     Checking htqx_minigrep v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(config:Config){
[INFO] [stderr]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> src/lib.rs:40:15
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `contents`
[INFO] [stderr]   --> src/lib.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `query`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     query:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `filename`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     filename:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `search`
[INFO] [stderr]   --> src/lib.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(config:Config){
[INFO] [stderr]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> src/lib.rs:40:15
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `contents`
[INFO] [stderr]   --> src/lib.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `query`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     query:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `filename`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     filename:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut a3:&Drop = &MyBox(3);
[INFO] [stderr]    |                 ^^^^ help: use `dyn`: `dyn Drop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/main.rs:55:15
[INFO] [stderr]    |
[INFO] [stderr] 55 |     if let e@1...5 = *a {println!("e={}",e)};
[INFO] [stderr]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:155:8
[INFO] [stderr]     |
[INFO] [stderr] 155 | let s:&std::fmt::Display = &"hi";
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::fmt::Display`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:35
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn fa(f:fn(i32)->i32, a:i32)->Box<Fn()->i32>{
[INFO] [stderr]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn Fn()->i32`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]    --> src/main.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |     use std::net::TcpStream;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut a3:&Drop = &MyBox(3);
[INFO] [stderr]    |                 ^^^^ help: use `dyn`: `dyn Drop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/main.rs:55:15
[INFO] [stderr]    |
[INFO] [stderr] 55 |     if let e@1...5 = *a {println!("e={}",e)};
[INFO] [stderr]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:155:8
[INFO] [stderr]     |
[INFO] [stderr] 155 | let s:&std::fmt::Display = &"hi";
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::fmt::Display`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:35
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn fa(f:fn(i32)->i32, a:i32)->Box<Fn()->i32>{
[INFO] [stderr]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn Fn()->i32`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stderr]    --> src/main.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |     use std::net::TcpStream;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `a3` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut a3:&Drop = &MyBox(3);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_a3` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a3` is never read
[INFO] [stderr]   --> src/main.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     a3 = &a2;
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let b = *a;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 | let mut d:& i8 = &5;
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 | let e = E2{c:&c};
[INFO] [stderr]     |     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(config:Config){
[INFO] [stderr]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> src/lib.rs:40:15
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `contents`
[INFO] [stderr]   --> src/lib.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 | let mut b:isize = 8;
[INFO] [stderr]     |     ----^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `query`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     query:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `filename`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     filename:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new(a:T)->MyBox<T>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `f2`
[INFO] [stderr]   --> src/main.rs:91:4
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn f2<'a>(x:& mut &'a i8, y: &'a i8){
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `E`
[INFO] [stderr]    --> src/main.rs:111:8
[INFO] [stderr]     |
[INFO] [stderr] 111 | struct E<'e, 'c :'e>{c:&'e  C<'c>}
[INFO] [stderr]     |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `c`
[INFO] [stderr]    --> src/main.rs:112:22
[INFO] [stderr]     |
[INFO] [stderr] 112 | struct E2<'e, T :'e>{c:&'e  T} //类似定义
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fe`
[INFO] [stderr]    --> src/main.rs:114:4
[INFO] [stderr]     |
[INFO] [stderr] 114 | fn fe(x:C)->&isize{
[INFO] [stderr]     |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bar`
[INFO] [stderr]    --> src/main.rs:151:4
[INFO] [stderr]     |
[INFO] [stderr] 151 | fn bar() ->!{
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_webserver`
[INFO] [stderr]    --> src/main.rs:169:4
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn test_webserver(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_associatedType` should have a snake case name
[INFO] [stderr]    --> src/main.rs:119:4
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn test_associatedType(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_associated_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_defaultTypeParameters` should have a snake case name
[INFO] [stderr]    --> src/main.rs:134:4
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn test_defaultTypeParameters(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_default_type_parameters`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_highType` should have a snake case name
[INFO] [stderr]    --> src/main.rs:149:4
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn test_highType(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_high_type`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_derivableTrait` should have a snake case name
[INFO] [stderr]    --> src/main.rs:194:4
[INFO] [stderr]     |
[INFO] [stderr] 194 | fn test_derivableTrait(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_derivable_trait`
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable `a3` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut a3:&Drop = &MyBox(3);
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_a3` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a3` is never read
[INFO] [stderr]   --> src/main.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     a3 = &a2;
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let b = *a;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 | let mut d:& i8 = &5;
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 | let e = E2{c:&c};
[INFO] [stderr]     |     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]  --> src/lib.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(config:Config){
[INFO] [stderr]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> src/lib.rs:40:15
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `contents`
[INFO] [stderr]   --> src/lib.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 | let mut b:isize = 8;
[INFO] [stderr]     |     ----^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `query`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     query:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `filename`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     filename:&'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `search`
[INFO] [stderr]   --> src/lib.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn search<'a>(query:&str,contents:&'a str)
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new(a:T)->MyBox<T>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `f2`
[INFO] [stderr]   --> src/main.rs:91:4
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn f2<'a>(x:& mut &'a i8, y: &'a i8){
[INFO] [stderr]    |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `E`
[INFO] [stderr]    --> src/main.rs:111:8
[INFO] [stderr]     |
[INFO] [stderr] 111 | struct E<'e, 'c :'e>{c:&'e  C<'c>}
[INFO] [stderr]     |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `c`
[INFO] [stderr]    --> src/main.rs:112:22
[INFO] [stderr]     |
[INFO] [stderr] 112 | struct E2<'e, T :'e>{c:&'e  T} //类似定义
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fe`
[INFO] [stderr]    --> src/main.rs:114:4
[INFO] [stderr]     |
[INFO] [stderr] 114 | fn fe(x:C)->&isize{
[INFO] [stderr]     |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bar`
[INFO] [stderr]    --> src/main.rs:151:4
[INFO] [stderr]     |
[INFO] [stderr] 151 | fn bar() ->!{
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_webserver`
[INFO] [stderr]    --> src/main.rs:169:4
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn test_webserver(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_associatedType` should have a snake case name
[INFO] [stderr]    --> src/main.rs:119:4
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn test_associatedType(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_associated_type`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_defaultTypeParameters` should have a snake case name
[INFO] [stderr]    --> src/main.rs:134:4
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn test_defaultTypeParameters(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_default_type_parameters`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_highType` should have a snake case name
[INFO] [stderr]    --> src/main.rs:149:4
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn test_highType(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_high_type`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_derivableTrait` should have a snake case name
[INFO] [stderr]    --> src/main.rs:194:4
[INFO] [stderr]     |
[INFO] [stderr] 194 | fn test_derivableTrait(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_derivable_trait`
[INFO] [stderr] 
[INFO] [stderr] warning: 30 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "a1c4bb3399c96767ec32acabc0e8ffa8dd5d42a774fd51eb0cf40e2cb520f84a"`
[INFO] running `"docker" "rm" "-f" "a1c4bb3399c96767ec32acabc0e8ffa8dd5d42a774fd51eb0cf40e2cb520f84a"`
[INFO] [stdout] a1c4bb3399c96767ec32acabc0e8ffa8dd5d42a774fd51eb0cf40e2cb520f84a