[INFO] cloning repository https://github.com/wangrenjun12/rust-haifa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wangrenjun12/rust-haifa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangrenjun12%2Frust-haifa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangrenjun12%2Frust-haifa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aeae742797a62603c4000085b3d0b82191ad2d3c
[INFO] checking wangrenjun12/rust-haifa against master#df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e for pr-95474
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangrenjun12%2Frust-haifa" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wangrenjun12/rust-haifa on toolchain df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wangrenjun12/rust-haifa
[INFO] finished tweaking git repo https://github.com/wangrenjun12/rust-haifa
[INFO] tweaked toml for git repo https://github.com/wangrenjun12/rust-haifa written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/wangrenjun12/rust-haifa already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-9/source/12_merino_sock5/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-9/source/Cargo.toml
[INFO] [stderr] warning: /workspace/builds/worker-9/source/16_macro/Cargo.toml: file found to be present in multiple build targets: /workspace/builds/worker-9/source/16_macro/src/hashmap_macro.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.4.4
[INFO] [stderr]   Downloaded snafu v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 833ee5451a59133dc0c91947e5444002fae85126d817dfb3cc9da6213d7fc44a
[INFO] running `Command { std: "docker" "start" "-a" "833ee5451a59133dc0c91947e5444002fae85126d817dfb3cc9da6213d7fc44a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "833ee5451a59133dc0c91947e5444002fae85126d817dfb3cc9da6213d7fc44a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833ee5451a59133dc0c91947e5444002fae85126d817dfb3cc9da6213d7fc44a", kill_on_drop: false }`
[INFO] [stdout] 833ee5451a59133dc0c91947e5444002fae85126d817dfb3cc9da6213d7fc44a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17cbba3a4d3be05c6d399c02098f905040d5ba96dee764fe42f934307d6708df
[INFO] running `Command { std: "docker" "start" "-a" "17cbba3a4d3be05c6d399c02098f905040d5ba96dee764fe42f934307d6708df", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/12_merino_sock5/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: /opt/rustwide/workdir/16_macro/Cargo.toml: file found to be present in multiple build targets: /opt/rustwide/workdir/16_macro/src/hashmap_macro.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.114
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.4
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[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking futures-io v0.3.19
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]    Compiling serde v1.0.135
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[INFO] [stderr]     Checking bytes v1.1.0
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[INFO] [stderr]     Checking minimal-lexical v0.2.1
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[INFO] [stderr]     Checking quick-error v1.2.3
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[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.135
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking ryu v1.0.9
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[INFO] [stderr]     Checking say_bye v0.1.0 (/opt/rustwide/workdir/13_cargo_01)
[INFO] [stderr]     Checking io_test v0.1.0 (/opt/rustwide/workdir/07_io)
[INFO] [stderr]     Checking std_mic v0.1.0 (/opt/rustwide/workdir/09_std_mic)
[INFO] [stderr]     Checking macro_example v0.1.0 (/opt/rustwide/workdir/16_macro)
[INFO] [stderr]     Checking errors v0.1.0 (/opt/rustwide/workdir/08_errors)
[INFO] [stderr]     Checking arrays v0.1.0 (/opt/rustwide/workdir/03_array_vec_slice)
[INFO] [stdout] warning: unused variable: `v3`
[INFO] [stdout]   --> 03_array_vec_slice/src/vec_1.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let v3: Vec<i32> = vec![];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v3`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking collection_1 v0.1.0 (/opt/rustwide/workdir/21_collection)
[INFO] [stderr]     Checking static_server v0.1.0 (/opt/rustwide/workdir/11_static_server)
[INFO] [stderr]     Checking iterators v0.1.0 (/opt/rustwide/workdir/06_iterators)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking convert v0.1.0 (/opt/rustwide/workdir/10_convert)
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/05_traits)
[INFO] [stderr]     Checking std_using v0.1.0 (/opt/rustwide/workdir/01_std_using)
[INFO] [stderr]     Checking closures v0.1.0 (/opt/rustwide/workdir/04_closure)
[INFO] [stdout] warning: unused imports: `BufReader`, `path::Path`
[INFO] [stdout]  --> 11_static_server/src/http_server.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{Read, Write,BufReader},
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |     path::Path,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking sp v0.1.0 (/opt/rustwide/workdir/22_smart_pointer)
[INFO] [stdout] warning: unused variable: `str1`
[INFO] [stdout]   --> 10_convert/src/str_1.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let str1:String = "Hello".into();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::BufRead;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let len = stream.read(&mut buffer).unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let (mut stream, addr) = listener.accept().unwrap();
[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: function `parseHttpRequestLine` should have a snake case name
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn parseHttpRequestLine(line: String) -> Option<HttpRequestLine> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `parse_http_request_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `requestLine` should have a snake case name
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut requestLine =  HttpRequestLine{
[INFO] [stdout]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `request_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solar_distance`
[INFO] [stdout]   --> 21_collection/src/hashmap.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let solar_distance = HashMap::from([
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solar_distance`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v3`
[INFO] [stdout]   --> 03_array_vec_slice/src/vec_1.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let v3: Vec<i32> = vec![];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v3`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s = "Hello".to_string();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking string_using v0.1.0 (/opt/rustwide/workdir/02_string)
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]   --> 10_convert/src/asref_1.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn takes_user<U: AsRef<User>>(user: U) {}
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let s = String::from("world");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s: String = "also this".into();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let message = s + " world!";
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]  --> 10_convert/src/asref_1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     email: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> 10_convert/src/asref_1.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `privileges`
[INFO] [stdout]   --> 10_convert/src/asref_1.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     privileges: Vec<Privilege>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`
[INFO] [stdout]  --> 16_macro/src/macro_2.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                ^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let arr = [1, 2, 3, 4, 5];  //数组，栈上分配内存，不可变
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v: Vec<i32> = Vec::new();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let v: Vec<i32> = vec![];
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> 10_convert/src/array_1.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let v = vec![1, 2, 3, 4, 5];
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> 10_convert/src/array_1.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let v = vec![0; 10]; // ten zeroes
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> 10_convert/src/array_1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[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: unused variable: `str1`
[INFO] [stdout]   --> 10_convert/src/str_1.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let str1:String = "Hello".into();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s = "Hello".to_string();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let s = String::from("world");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s: String = "also this".into();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]  --> 10_convert/src/string_1.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let message = s + " world!";
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`
[INFO] [stdout]  --> 16_macro/src/macro_2.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                ^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 22_smart_pointer/src/sp_1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s = String::from("hello");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> 22_smart_pointer/src/sp_1.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v = vec! [1,2,3];
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> 22_smart_pointer/src/sp_1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s = String::from("hello");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> 22_smart_pointer/src/sp_1.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v = vec! [1,2,3];
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cargo_02 v0.1.0 (/opt/rustwide/workdir/13_cargo_02)
[INFO] [stdout] warning: unused variable: `solar_distance`
[INFO] [stdout]   --> 21_collection/src/hashmap.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let solar_distance = HashMap::from([
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solar_distance`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello1`
[INFO] [stdout]  --> 02_string/src/string1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let hello1 = "Hello, world!";
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello3`
[INFO] [stdout]  --> 02_string/src/string1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let hello3:String = hello2.to_string();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `path::Path`
[INFO] [stdout]  --> 11_static_server/src/http_server.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{Read, Write,BufReader},
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |     path::Path,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> 03_array_vec_slice/src/arrays.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]   --> 10_convert/src/asref_1.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn takes_user<U: AsRef<User>>(user: U) {}
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello1`
[INFO] [stdout]  --> 02_string/src/string1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let hello1 = "Hello, world!";
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello3`
[INFO] [stdout]  --> 02_string/src/string1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let hello3:String = hello2.to_string();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hello3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::BufRead;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let len = stream.read(&mut buffer).unwrap();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let arr = [1, 2, 3, 4, 5];  //数组，栈上分配内存，不可变
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v: Vec<i32> = Vec::new();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> 10_convert/src/array_1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let v: Vec<i32> = vec![];
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> 10_convert/src/array_1.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let v = vec![1, 2, 3, 4, 5];
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> 10_convert/src/array_1.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let v = vec![0; 10]; // ten zeroes
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> 03_array_vec_slice/src/arrays.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[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: variable does not need to be mutable
[INFO] [stdout]  --> 10_convert/src/array_1.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[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: field is never read: `email`
[INFO] [stdout]  --> 10_convert/src/asref_1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     email: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> 10_convert/src/asref_1.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `privileges`
[INFO] [stdout]   --> 10_convert/src/asref_1.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     privileges: Vec<Privilege>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let (mut stream, addr) = listener.accept().unwrap();
[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: function `parseHttpRequestLine` should have a snake case name
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn parseHttpRequestLine(line: String) -> Option<HttpRequestLine> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `parse_http_request_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> 03_array_vec_slice/src/arrays.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `requestLine` should have a snake case name
[INFO] [stdout]   --> 11_static_server/src/http_server.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut requestLine =  HttpRequestLine{
[INFO] [stdout]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `request_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> 03_array_vec_slice/src/arrays.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut arr2:[i32; 5] = [1, 2, 3, 4, 5];  //显式定义数组元素数据类型和元素个数
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> 16_macro/src/hashmap_macro.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn main(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking kv_read v0.1.0 (/opt/rustwide/workdir/19_kv_read)
[INFO] [stderr]     Checking nom v0.1.0 (/opt/rustwide/workdir/18_nom)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> 19_kv_read/src/from_trait.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut contents = fs::read_to_string(&file_name)?;
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> 19_kv_read/src/from_trait.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut contents = fs::read_to_string(&file_name)?;
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_hex`
[INFO] [stdout]   --> 18_nom/src/hex1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn from_hex(input: &str) -> Result<u8, std::num::ParseIntError> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_hex_digit`
[INFO] [stdout]   --> 18_nom/src/hex1.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn is_hex_digit(c: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hex_primary`
[INFO] [stdout]   --> 18_nom/src/hex1.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn hex_primary(input: &str) -> IResult<&str, u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hex_color`
[INFO] [stdout]   --> 18_nom/src/hex1.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn hex_color(input: &str) -> IResult<&str, Color> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling snafu-derive v0.4.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling clap_derive v3.0.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking snafu v0.4.4
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/00_ownership)
[INFO] [stderr]     Checking csv_challenge v0.1.0 (/opt/rustwide/workdir/15_csv_challenge)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> 00_ownership/src/borrow_check.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |         let x = 5;
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[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: field is never read: `id`
[INFO] [stdout]  --> 00_ownership/src/dag.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> 00_ownership/src/dag.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]  --> 00_ownership/src/dag.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> 00_ownership/src/dag.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]  --> 00_ownership/src/dag2.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> 00_ownership/src/dag2.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> 00_ownership/src/lifetime_v1.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let res = the_longest(s1_r,&s2);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[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: unused variable: `x`
[INFO] [stdout]  --> 00_ownership/src/borrow_check.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |         let x = 5;
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[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: field is never read: `id`
[INFO] [stdout]  --> 00_ownership/src/dag2.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> 00_ownership/src/dag2.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `s`
[INFO] [stdout]  --> 00_ownership/src/closure_move.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s = "Hello".to_string();
[INFO] [stdout]   |         - move occurs because `s` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 4 |     let join = |i: &str| {s +i};
[INFO] [stdout]   |                ---------  - variable moved due to use in closure
[INFO] [stdout]   |                |
[INFO] [stdout]   |                value moved into closure here
[INFO] [stdout] 5 |     assert_eq!("Hello World",join(" World"));
[INFO] [stdout] 6 |     println!("{:?}",s);
[INFO] [stdout]   |                     ^ value borrowed here after move
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ownership` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `s`
[INFO] [stdout]  --> 00_ownership/src/closure_move.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s = "Hello".to_string();
[INFO] [stdout]   |         - move occurs because `s` has type `String`, which does not implement the `Copy` trait
[INFO] [stdout] 4 |     let join = |i: &str| {s +i};
[INFO] [stdout]   |                ---------  - variable moved due to use in closure
[INFO] [stdout]   |                |
[INFO] [stdout]   |                value moved into closure here
[INFO] [stdout] 5 |     assert_eq!("Hello World",join(" World"));
[INFO] [stdout] 6 |     println!("{:?}",s);
[INFO] [stdout]   |                     ^ value borrowed here after move
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ownership` due to 2 previous errors
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> 00_ownership/src/lifetime_v1.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let res = the_longest(s1_r,&s2);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[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] running `Command { std: "docker" "inspect" "17cbba3a4d3be05c6d399c02098f905040d5ba96dee764fe42f934307d6708df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17cbba3a4d3be05c6d399c02098f905040d5ba96dee764fe42f934307d6708df", kill_on_drop: false }`
[INFO] [stdout] 17cbba3a4d3be05c6d399c02098f905040d5ba96dee764fe42f934307d6708df