[INFO] cloning repository https://github.com/t-xinlin/ilearning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/t-xinlin/ilearning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-xinlin%2Filearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-xinlin%2Filearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e689faa5fcbcdd183e748bfe150d0b083441fb1
[INFO] checking t-xinlin/ilearning-rust against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft-xinlin%2Filearning-rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/t-xinlin/ilearning-rust on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
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[INFO] finished tweaking git repo https://github.com/t-xinlin/ilearning-rust
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[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]    Compiling parking v2.0.0
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[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling fastrand v1.4.1
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[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking ilearning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking list v0.1.0 (/opt/rustwide/workdir/list)
[INFO] [stderr]     Checking trait-rs v0.1.0 (/opt/rustwide/workdir/trait-rs)
[INFO] [stderr]     Checking map-rs v0.1.0 (/opt/rustwide/workdir/map-rs)
[INFO] [stderr]     Checking mutex-rwLock v0.1.0 (/opt/rustwide/workdir/mutex-rwLock)
[INFO] [stderr]     Checking option-result v0.1.0 (/opt/rustwide/workdir/option-result)
[INFO] [stdout] error[E0601]: `main` function not found in crate `test`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/test.rs`
[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 E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ilearning-rust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0428]: the name `test_v1` is defined multiple times
[INFO] [stdout]    --> trait-rs/src/main.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn test_v1() {
[INFO] [stdout]     |     ------------ previous definition of the value `test_v1` here
[INFO] [stdout] ...
[INFO] [stdout] 290 |     fn test_v1() {
[INFO] [stdout]     |     ^^^^^^^^^^^^ `test_v1` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `test_v1` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `test_v1` is defined multiple times
[INFO] [stdout]    --> trait-rs/src/main.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn test_v1() {
[INFO] [stdout]     |     ------------ previous definition of the value `test_v1` here
[INFO] [stdout] ...
[INFO] [stdout] 302 |     fn test_v1() {
[INFO] [stdout]     |     ^^^^^^^^^^^^ `test_v1` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `test_v1` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> mutex-rwLock/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> map-rs/src/main.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     return;
[INFO] [stdout]    |     ------ any code following this expression is unreachable
[INFO] [stdout] 72 | 
[INFO] [stdout] 73 |     let it: Vec<_> = (0..20).map(|x| x + 1).collect();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Name` should have a snake case name
[INFO] [stdout]   --> map-rs/src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     Name: String,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Age` should have a snake case name
[INFO] [stdout]   --> map-rs/src/main.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     Age: i32,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::Food`
[INFO] [stdout]  --> option-result/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use option::Food;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `N`
[INFO] [stdout]  --> mutex-rwLock/src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const N: usize = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main1`
[INFO] [stdout]  --> mutex-rwLock/src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn main1() {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux`
[INFO] [stdout]   --> mutex-rwLock/src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn mux() {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `mutex_rwLock` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `mutex_rw_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> option-result/src/result.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     return;
[INFO] [stdout]     |     ------ any code following this expression is unreachable
[INFO] [stdout] 103 |     // 这种情形下仍然会给出正确的答案。
[INFO] [stdout] 104 |     let twenty = multiply("10", "2");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_number_str`
[INFO] [stdout]   --> option-result/src/result.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn multiply_v5(first_number_str: &str, second_number_str: &str) -> ParseIntResult<i32> {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_number_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second_number_str`
[INFO] [stdout]   --> option-result/src/result.rs:92:40
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn multiply_v5(first_number_str: &str, second_number_str: &str) -> ParseIntResult<i32> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_number_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cooked_apple`
[INFO] [stdout]    --> option-result/src/option.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let cooked_apple = cook(chop(peel(apple)));
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cooked_apple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `ParseIntResult`
[INFO] [stdout]  --> option-result/src/result.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type ParseIntResult<T> = Result<T, 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: `multiply`
[INFO] [stdout]  --> option-result/src/result.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn multiply(first_number_str: &str, second_number_str: &str) -> Result<i32, ParseIntError> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_v2`
[INFO] [stdout]   --> option-result/src/result.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn multiply_v2(first_number_str: &str, second_number_str: &str) -> ParseIntResult<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]   --> option-result/src/result.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn print(result: ParseIntResult<i32>) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_result`
[INFO] [stdout]   --> option-result/src/result.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn test_result() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_v3`
[INFO] [stdout]   --> option-result/src/result.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn multiply_v3(first_number_str: &str, second_number_str: &str) -> ParseIntResult<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_v4`
[INFO] [stdout]   --> option-result/src/result.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn multiply_v4(first_number_str: &str, second_number_str: &str) -> ParseIntResult<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_v5`
[INFO] [stdout]   --> option-result/src/result.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn multiply_v5(first_number_str: &str, second_number_str: &str) -> ParseIntResult<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]    --> option-result/src/result.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `double_first_v1`
[INFO] [stdout]   --> option-result/src/option_result.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn double_first_v1(vec: Vec<&str>) -> Result<Option<i32>, ParseIntError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> option-result/src/result.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     multiply_v4("t", "2");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6f697b5c1e2c57630b8a6e6ca7cb721ee291ad14c6bbeadabce449cecd0ec703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f697b5c1e2c57630b8a6e6ca7cb721ee291ad14c6bbeadabce449cecd0ec703", kill_on_drop: false }`
[INFO] [stdout] 6f697b5c1e2c57630b8a6e6ca7cb721ee291ad14c6bbeadabce449cecd0ec703