[INFO] cloning repository https://github.com/flikeok/rust_example
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[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflikeok%2Frust_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d7f73bbef7cd9c4ac23591a14b013d2337004a7
[INFO] checking flikeok/rust_example/5d7f73bbef7cd9c4ac23591a14b013d2337004a7 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flikeok/rust_example
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[INFO] crate git repo https://github.com/flikeok/rust_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f492ace286e378b94b579a5b32745ab025d5fb3c0d5346e411235b9eaa7735db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f492ace286e378b94b579a5b32745ab025d5fb3c0d5346e411235b9eaa7735db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f492ace286e378b94b579a5b32745ab025d5fb3c0d5346e411235b9eaa7735db", kill_on_drop: false }`
[INFO] [stdout] f492ace286e378b94b579a5b32745ab025d5fb3c0d5346e411235b9eaa7735db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7169d70f0911deae7f79354df87811bc40d6331e2407ac0d009d4b115cb30612
[INFO] running `Command { std: "docker" "start" "-a" "7169d70f0911deae7f79354df87811bc40d6331e2407ac0d009d4b115cb30612", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]     Checking rust_example v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stderr]        Fixed src/ch19/files.rs (1 fix)
[INFO] [stderr]        Fixed src/ch18/errors.rs (1 fix)
[INFO] [stderr]        Fixed src/ch10/uses.rs (1 fix)
[INFO] [stderr]        Fixed src/ch19/threads.rs (1 fix)
[INFO] [stderr]        Fixed src/ch19/boxs.rs (4 fixes)
[INFO] [stderr]        Fixed src/ch14/mod.rs (1 fix)
[INFO] [stderr]        Fixed src/ch19/cmds.rs (1 fix)
[INFO] [stderr]        Fixed src/ch10/structs.rs (1 fix)
[INFO] [stderr]        Fixed src/ch6/to_strings.rs (1 fix)
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]  --> src/ch10/mods.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn hello() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pub_hello` is never used
[INFO] [stdout]  --> src/ch10/mods.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn pub_hello() {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indirect_access` is never used
[INFO] [stdout]  --> src/ch10/mods.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn indirect_access() {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]   --> src/ch10/mods.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |         fn hello() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pub_hello` is never used
[INFO] [stdout]   --> src/ch10/mods.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub(in crate::ch10::mods::my_mod) fn pub_hello() {
[INFO] [stdout]    |                                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `self_hello` is never used
[INFO] [stdout]   --> src/ch10/mods.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |         pub(self) fn self_hello() {
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `super_hello` is never used
[INFO] [stdout]   --> src/ch10/mods.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |         pub(super) fn super_hello() {
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_super_in_nested` is never used
[INFO] [stdout]   --> src/ch10/mods.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 30 |         pub fn call_super_in_nested() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_crate_hello` is never used
[INFO] [stdout]   --> src/ch10/mods.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |         pub(crate) fn call_crate_hello() {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenBox` is never constructed
[INFO] [stdout]  --> src/ch10/structs.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub struct OpenBox<T> {
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CloseBox` is never constructed
[INFO] [stdout]  --> src/ch10/structs.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub struct CloseBox<T> {
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `print` are never used
[INFO] [stdout]   --> src/ch10/structs.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     impl<T> CloseBox<T>
[INFO] [stdout] 12 | |     where
[INFO] [stdout] 13 | |         T: std::fmt::Display,
[INFO] [stdout]    | |_____________________________- associated items in this implementation
[INFO] [stdout] 14 |       {
[INFO] [stdout] 15 |           pub fn new(t: T) -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |           pub fn print(&self) {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]  --> src/ch10/uses.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn hello() {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `world` is never used
[INFO] [stdout]  --> src/ch10/uses.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn world() {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]   --> src/ch10/uses.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |         pub fn hello() {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_hello` is never used
[INFO] [stdout]   --> src/ch10/uses.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |         pub fn call_hello() {
[INFO] [stdout]    |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Animal` is never used
[INFO] [stdout]  --> src/ch16/traits.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Animal {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sheep` is never constructed
[INFO] [stdout]  --> src/ch16/traits.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Sheep {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_sheep` is never used
[INFO] [stdout]   --> src/ch16/traits.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Sheep {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new_sheep() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_duck` is never used
[INFO] [stdout]   --> src/ch16/traits.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Duck {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new_duck() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Duck` is never constructed
[INFO] [stdout]   --> src/ch16/traits.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Duck {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_animal` is never used
[INFO] [stdout]   --> src/ch16/traits.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn random_animal(i: i32) -> Box<dyn Animal> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map_string` is never used
[INFO] [stdout]  --> src/ch18/maps.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn map_string(s: Option<String>) -> Option<usize> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseIntResult` is never used
[INFO] [stdout]  --> src/ch18/results.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type ParseIntResult<T> = Result<T, ParseIntError>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_plus` is never used
[INFO] [stdout]  --> src/ch18/results.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn two_plus(l: String, r: String) -> ParseIntResult<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_first` is never used
[INFO] [stdout]   --> src/ch18/results.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn double_first(vec: Vec<&str>) -> Option<Result<i32, ParseIntError>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stu` is never constructed
[INFO] [stdout]  --> src/ch19/boxs.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Stu<'a> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/ch19/boxs.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl<'a> Stu<'a> {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn new(s: &'a str, i: i32) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `a_plus_b` is never used
[INFO] [stdout]   --> src/ch19/boxs.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn a_plus_b(i: i32, j: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]  --> src/ch2/tuple.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn reverse(left:i32,right:bool)->(bool,i32){
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]   --> src/ch2/tuple.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `trans` is never used
[INFO] [stdout]   --> src/ch2/tuple.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Matrix {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn trans(&self)->Self{
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice` is never used
[INFO] [stdout]   --> src/ch2/array.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn slice(s:&[i32]){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/ch3/structs.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Stu(i32,String);
[INFO] [stdout]    |            --- ^^^ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `Stu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `MY_WORLD` is never used
[INFO] [stdout]  --> src/ch3/consts.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | static MY_WORLD:&'static str = "hello";
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM` is never used
[INFO] [stdout]  --> src/ch3/consts.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const NUM:i32 = 10;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `MyInt` is never used
[INFO] [stdout]  --> src/ch5/types.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type MyInt = i32;
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]   --> src/ch8/ifs.rs:42:6
[INFO] [stdout]    |
[INFO] [stdout] 42 | enum Color {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/ch8/ifs.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct Stu {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 81 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 82 |     age: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]    --> src/ch9/closure.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn apply<F>(f: F)
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `OpenBox` in this scope
[INFO] [stdout]   --> src/ch10/structs.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let b = OpenBox {
[INFO] [stdout]    |             ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use crate::ch10::structs::my::OpenBox;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `CloseBox`
[INFO] [stdout]   --> src/ch10/structs.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let cb = CloseBox::new("t");
[INFO] [stdout]    |              ^^^^^^^^ use of undeclared type `CloseBox`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use crate::ch10::structs::my::CloseBox;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hello` in this scope
[INFO] [stdout]   --> src/ch10/uses.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     hello();
[INFO] [stdout]    |     ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  + use crate::ch10::uses::my::hello;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `HashMap`
[INFO] [stdout]   --> src/ch19/boxs.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut m = HashMap::new();
[INFO] [stdout]    |                 ^^^^^^^ use of undeclared type `HashMap`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HashSet` in this scope
[INFO] [stdout]   --> src/ch19/boxs.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s1: HashSet<i32> = vec![1, 2, 2, 3, 4].iter().map(|&x| x + 1).collect();
[INFO] [stdout]    |             ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::collections::HashSet;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc`
[INFO] [stdout]   --> src/ch19/boxs.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let s = Rc::new("hello".to_owned());
[INFO] [stdout]    |             ^^ use of undeclared type `Rc`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::rc::Rc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Rc`
[INFO] [stdout]   --> src/ch19/boxs.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |     println!("s.count:{}", Rc::strong_count(&s));
[INFO] [stdout]    |                            ^^ use of undeclared type `Rc`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::rc::Rc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Arc`
[INFO] [stdout]   --> src/ch19/boxs.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let s = Arc::new("world".to_owned());
[INFO] [stdout]    |             ^^^ use of undeclared type `Arc`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::sync::Arc;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]   --> src/ch19/boxs.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let t = thread::spawn(move || {
[INFO] [stdout]    |                 ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::thread;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]   --> src/ch19/boxs.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::thread;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Command`
[INFO] [stdout]  --> src/ch19/cmds.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let output = Command::new("echo").arg("hello").output().unwrap();
[INFO] [stdout]   |                  ^^^^^^^ use of undeclared type `Command`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::process::Command;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]  --> src/ch19/files.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let p = Path::new("/tmp/hello.txt");
[INFO] [stdout]   |             ^^^^ use of undeclared type `Path`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::path::Path;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]  --> src/ch19/files.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut file = File::options()
[INFO] [stdout]   |                    ^^^^ use of undeclared type `File`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fs::File;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SeekFrom`
[INFO] [stdout]   --> src/ch19/files.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 |     file.seek(SeekFrom::Start(0)).unwrap();
[INFO] [stdout]    |               ^^^^^^^^ use of undeclared type `SeekFrom`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::io::SeekFrom;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `remove_file` in this scope
[INFO] [stdout]   --> src/ch19/files.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     remove_file(p).unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::fs::remove_file;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `mpsc`
[INFO] [stdout]  --> src/ch19/threads.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let (sx, rx) = mpsc::channel::<i32>();
[INFO] [stdout]   |                    ^^^^ use of undeclared crate or module `mpsc`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::sync::mpsc;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `thread`
[INFO] [stdout]  --> src/ch19/threads.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         thread::spawn(move || {
[INFO] [stdout]   |         ^^^^^^ use of undeclared crate or module `thread`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::thread;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/ch19/threads.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let p = Path::new("/usr/local/flike/a.txt");
[INFO] [stdout]    |             ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/ch19/threads.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |     assert_eq!(dir, Some(Path::new("/usr/local/flike")));
[INFO] [stdout]    |                          ^^^^ use of undeclared type `Path`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OsStr`
[INFO] [stdout]   --> src/ch19/threads.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     assert_eq!(Some(OsStr::new("a.txt")), file);
[INFO] [stdout]    |                     ^^^^^ use of undeclared type `OsStr`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::ffi::OsStr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inferred_type` is never read
[INFO] [stdout]  --> src/ch2/num_type.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut inferred_type = 12; // 根据下一行的赋值推断为 i64 类型
[INFO] [stdout]   |             ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_example` (lib test) due to 21 previous errors; 3 warnings emitted
[INFO] [stdout] warning: value assigned to `mut_able` is never read
[INFO] [stdout]  --> src/ch2/num_type.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut mut_able = 12; // Mutable `i32`
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/ch8/ifs.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         value => {
[INFO] [stdout]    |         ----- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 75 |         _ => 0,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 20 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0422, E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "7169d70f0911deae7f79354df87811bc40d6331e2407ac0d009d4b115cb30612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7169d70f0911deae7f79354df87811bc40d6331e2407ac0d009d4b115cb30612", kill_on_drop: false }`
[INFO] [stdout] 7169d70f0911deae7f79354df87811bc40d6331e2407ac0d009d4b115cb30612