[INFO] cloning repository https://github.com/rajkumarthirumalai/RustLearning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rajkumarthirumalai/RustLearning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frajkumarthirumalai%2FRustLearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frajkumarthirumalai%2FRustLearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e3a542c38329898e91046dffabbc7adba5e6fe1
[INFO] checking rajkumarthirumalai/RustLearning against try#a611f2a14e38407ec6717a86a01424ee6fc80762 for pr-154992-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frajkumarthirumalai%2FRustLearning" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rajkumarthirumalai/RustLearning
[INFO] finished tweaking git repo https://github.com/rajkumarthirumalai/RustLearning
[INFO] tweaked toml for git repo https://github.com/rajkumarthirumalai/RustLearning written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rajkumarthirumalai/RustLearning on toolchain a611f2a14e38407ec6717a86a01424ee6fc80762
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb7f8580a108dbfa933a08bc5efaacc88b122e11cb17e7202984a658b4a96b28
[INFO] running `Command { std: "docker" "start" "-a" "fb7f8580a108dbfa933a08bc5efaacc88b122e11cb17e7202984a658b4a96b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb7f8580a108dbfa933a08bc5efaacc88b122e11cb17e7202984a658b4a96b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7f8580a108dbfa933a08bc5efaacc88b122e11cb17e7202984a658b4a96b28", kill_on_drop: false }`
[INFO] [stdout] fb7f8580a108dbfa933a08bc5efaacc88b122e11cb17e7202984a658b4a96b28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8198cce5deb5fef5e33eea56ab87a632309f0d46740776b2223feb02e9448a17
[INFO] running `Command { std: "docker" "start" "-a" "8198cce5deb5fef5e33eea56ab87a632309f0d46740776b2223feb02e9448a17", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]  --> exercises/22_clippy/clippy2.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |     for x in option {
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]   |
[INFO] [stdout] 5 -     for x in option {
[INFO] [stdout] 5 +     while let Some(x) = option {
[INFO] [stdout]   |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]   |
[INFO] [stdout] 5 -     for x in option {
[INFO] [stdout] 5 +     if let Some(x) = option {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/02_functions/functions5.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn square(num: i32) -> i32 {
[INFO] [stdout]   |    ------              ^^^ expected `i32`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 3 |     num * num;
[INFO] [stdout]   |              - help: remove this semicolon to return this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Vec<_>`
[INFO] [stdout]  --> exercises/14_generics/generics1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut numbers = Vec::new();
[INFO] [stdout]   |         ^^^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout] help: consider giving `numbers` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut numbers: Vec<T> = Vec::new();
[INFO] [stdout]   |                    ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of partially moved value: `optional_point`
[INFO] [stdout]   --> exercises/12_options/options3.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Some(p) => println!("Coordinates are {},{}", p.x, p.y),
[INFO] [stdout]    |              - value partially moved here
[INFO] [stdout] ...
[INFO] [stdout] 16 |     println!("{optional_point:?}"); // Don't change this line.
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ value borrowed here after partial move
[INFO] [stdout]    |
[INFO] [stdout]    = note: partial move occurs because value has type `Point`, which does not implement the `Copy` trait
[INFO] [stdout] help: borrow this binding in the pattern to avoid moving the value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Some(ref p) => println!("Coordinates are {},{}", p.x, p.y),
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> exercises/17_tests/tests3.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         assert_eq!(todo!(), 10); // Check width
[INFO] [stdout]    |         ^^^^^^^^^^^-------^^^^^
[INFO] [stdout]    |         |          |
[INFO] [stdout]    |         |          any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> exercises/17_tests/tests3.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         assert_eq!(todo!(), 10); // Check width
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |         any code following this expression is unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]  --> exercises/22_clippy/clippy2.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |     for x in option {
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]   |
[INFO] [stdout] 5 -     for x in option {
[INFO] [stdout] 5 +     while let Some(x) = option {
[INFO] [stdout]   |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]   |
[INFO] [stdout] 5 -     for x in option {
[INFO] [stdout] 5 +     if let Some(x) = option {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> exercises/17_tests/tests3.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         assert_eq!(todo!(), 20); // Check height
[INFO] [stdout]    |         ^^^^^^^^^^^-------^^^^^
[INFO] [stdout]    |         |          |
[INFO] [stdout]    |         |          any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> exercises/17_tests/tests3.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         assert_eq!(todo!(), 20); // Check height
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |         any code following this expression is unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "functions5") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `exercises` (bin "options3" test) due to 1 previous error
[INFO] [stdout] warning: unused import: `super::Command`
[INFO] [stdout]   --> exercises/quizzes/quiz2.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     use super::Command;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `!` with `i32`
[INFO] [stdout]   --> exercises/17_tests/tests3.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         assert_eq!(todo!(), 10); // Check width
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `! == i32`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `PartialEq<i32>` is not implemented for `!`
[INFO] [stdout]       but trait `PartialEq<!>` is implemented for it
[INFO] [stdout]   --> /rustc/a611f2a14e38407ec6717a86a01424ee6fc80762/library/core/src/cmp.rs:2083:4
[INFO] [stdout]    = help: for that trait implementation, expected `!`, found `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `!` with `i32`
[INFO] [stdout]   --> exercises/17_tests/tests3.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         assert_eq!(todo!(), 20); // Check height
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `! == i32`
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `PartialEq<i32>` is not implemented for `!`
[INFO] [stdout]       but trait `PartialEq<!>` is implemented for it
[INFO] [stdout]   --> /rustc/a611f2a14e38407ec6717a86a01424ee6fc80762/library/core/src/cmp.rs:2083:4
[INFO] [stdout]    = help: for that trait implementation, expected `!`, found `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "tests3" test) due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] error[E0425]: cannot find value `a` in this scope
[INFO] [stdout]  --> exercises/04_primitive_types/primitive_types3.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     if a.len() >= 100 {
[INFO] [stdout]   |        ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `append_bar` found for struct `Vec<String>` in the current scope
[INFO] [stdout]   --> exercises/15_traits/traits2.rs:18:49
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut foo = vec![String::from("Foo")].append_bar();
[INFO] [stdout]    |                                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `AppendBar` defines an item `append_bar`, perhaps you need to implement it
[INFO] [stdout]   --> exercises/15_traits/traits2.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | trait AppendBar {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] help: there is a method `append` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/a611f2a14e38407ec6717a86a01424ee6fc80762/library/alloc/src/vec/mod.rs:2893:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]  --> exercises/01_variables/variables1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     x = 5;
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout] help: you might have meant to introduce a new binding
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let x = 5;
[INFO] [stdout]   |     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]  --> exercises/01_variables/variables1.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!("x has the value {x}");
[INFO] [stdout]   |                                ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "primitive_types3") due to 1 previous error
[INFO] [stderr] error: could not compile `exercises` (bin "traits2" test) due to 1 previous error
[INFO] [stderr] error: could not compile `exercises` (bin "variables1" test) due to 2 previous errors
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Resize` found for enum `Message` in the current scope
[INFO] [stdout]  --> exercises/08_enums/enums1.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Message {
[INFO] [stdout]   | ------------ variant, associated function, or constant `Resize` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |     println!("{:?}", Message::Resize);
[INFO] [stdout]   |                               ^^^^^^ variant, associated function, or constant not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Move` found for enum `Message` in the current scope
[INFO] [stdout]  --> exercises/08_enums/enums1.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Message {
[INFO] [stdout]   | ------------ variant, associated function, or constant `Move` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     println!("{:?}", Message::Move);
[INFO] [stdout]   |                               ^^^^ variant, associated function, or constant not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Echo` found for enum `Message` in the current scope
[INFO] [stdout]  --> exercises/08_enums/enums1.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Message {
[INFO] [stdout]   | ------------ variant, associated function, or constant `Echo` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     println!("{:?}", Message::Echo);
[INFO] [stdout]   |                               ^^^^ variant, associated function, or constant not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `ChangeColor` found for enum `Message` in the current scope
[INFO] [stdout]   --> exercises/08_enums/enums1.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout]  2 | enum Message {
[INFO] [stdout]    | ------------ variant, associated function, or constant `ChangeColor` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     println!("{:?}", Message::ChangeColor);
[INFO] [stdout]    |                               ^^^^^^^^^^^ variant, associated function, or constant not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Quit` found for enum `Message` in the current scope
[INFO] [stdout]   --> exercises/08_enums/enums1.rs:11:31
[INFO] [stdout]    |
[INFO] [stdout]  2 | enum Message {
[INFO] [stdout]    | ------------ variant, associated function, or constant `Quit` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     println!("{:?}", Message::Quit);
[INFO] [stdout]    |                               ^^^^ variant, associated function, or constant not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "generics1" test) due to 1 previous error
[INFO] [stderr] error: could not compile `exercises` (bin "enums1") due to 5 previous errors
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     placeholder("blue");
[INFO] [stdout]    |     ^^^^^^^^^^^ ------ unexpected argument of type `&'static str`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 16 -     placeholder("blue");
[INFO] [stdout] 16 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     placeholder("red".to_string());
[INFO] [stdout]    |     ^^^^^^^^^^^ ----------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 18 -     placeholder("red".to_string());
[INFO] [stdout] 18 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     placeholder(String::from("hi"));
[INFO] [stdout]    |     ^^^^^^^^^^^ ------------------ unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 20 -     placeholder(String::from("hi"));
[INFO] [stdout] 20 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     placeholder("rust is fun!".to_owned());
[INFO] [stdout]    |     ^^^^^^^^^^^ ------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 22 -     placeholder("rust is fun!".to_owned());
[INFO] [stdout] 22 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     placeholder("nice weather".into());
[INFO] [stdout]    |     ^^^^^^^^^^^ --------------------- unexpected argument
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 24 -     placeholder("nice weather".into());
[INFO] [stdout] 24 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     placeholder(format!("Interpolation {}", "Station"));
[INFO] [stdout]    |     ^^^^^^^^^^^ -------------------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 26 -     placeholder(format!("Interpolation {}", "Station"));
[INFO] [stdout] 26 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     placeholder(&String::from("abc")[0..1]);
[INFO] [stdout]    |     ^^^^^^^^^^^ -------------------------- unexpected argument of type `&str`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 30 -     placeholder(&String::from("abc")[0..1]);
[INFO] [stdout] 30 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     placeholder("  hello there ".trim());
[INFO] [stdout]    |     ^^^^^^^^^^^ ----------------------- unexpected argument of type `&str`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 32 -     placeholder("  hello there ".trim());
[INFO] [stdout] 32 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     placeholder("Happy Monday!".replace("Mon", "Tues"));
[INFO] [stdout]    |     ^^^^^^^^^^^ -------------------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 34 -     placeholder("Happy Monday!".replace("Mon", "Tues"));
[INFO] [stdout] 34 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     placeholder("mY sHiFt KeY iS sTiCkY".to_lowercase());
[INFO] [stdout]    |     ^^^^^^^^^^^ --------------------------------------- unexpected argument of type `String`
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> exercises/09_strings/strings4.rs:2:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | fn placeholder() {}
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 36 -     placeholder("mY sHiFt KeY iS sTiCkY".to_lowercase());
[INFO] [stdout] 36 +     placeholder();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "strings4" test) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "8198cce5deb5fef5e33eea56ab87a632309f0d46740776b2223feb02e9448a17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8198cce5deb5fef5e33eea56ab87a632309f0d46740776b2223feb02e9448a17", kill_on_drop: false }`
[INFO] [stdout] 8198cce5deb5fef5e33eea56ab87a632309f0d46740776b2223feb02e9448a17
