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[INFO] checking 11MK/100-exercises-rust against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
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[INFO] validating manifest of git repo https://github.com/11MK/100-exercises-rust on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
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[INFO] crate git repo https://github.com/11MK/100-exercises-rust already has a lockfile, it will not be regenerated
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[INFO] [stdout] 02bc77548ca303de07713a0312e3890cd71320e2b467a9ce0392fc4caecdf5b3
[INFO] running `Command { std: "docker" "start" "-a" "02bc77548ca303de07713a0312e3890cd71320e2b467a9ce0392fc4caecdf5b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.63
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_outro)
[INFO] [stderr]     Checking outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro)
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables)
[INFO] [stderr]     Checking interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability)
[INFO] [stderr]     Checking intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro)
[INFO] [stderr]     Checking threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads)
[INFO] [stderr]     Checking drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_drop)
[INFO] [stderr]     Checking encapsulation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/05_encapsulation)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership)
[INFO] [stderr]     Checking enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum)
[INFO] [stderr]     Checking tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from)
[INFO] [stderr]     Checking welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome)
[INFO] [stdout] error[E0599]: no method named `description` found for struct `Ticket` in the current scope
[INFO] [stdout]   --> exercises/03_ticket_v1/05_encapsulation/src/lib.rs:47:27
[INFO] [stdout]    |
[INFO] [stdout]  2 |     pub struct Ticket {
[INFO] [stdout]    |     ----------------- method `description` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |         assert_eq!(ticket.description(), "A description");
[INFO] [stdout]    |                           ^^^^^^^^^^^ private field, not a method
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `description`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `title` found for struct `Ticket` in the current scope
[INFO] [stdout]   --> exercises/03_ticket_v1/05_encapsulation/src/lib.rs:53:27
[INFO] [stdout]    |
[INFO] [stdout]  2 |     pub struct Ticket {
[INFO] [stdout]    |     ----------------- method `title` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |         assert_eq!(ticket.title(), "A title");
[INFO] [stdout]    |                           ^^^^^ private field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `status` found for struct `Ticket` in the current scope
[INFO] [stdout]   --> exercises/03_ticket_v1/05_encapsulation/src/lib.rs:59:27
[INFO] [stdout]    |
[INFO] [stdout]  2 |     pub struct Ticket {
[INFO] [stdout]    |     ----------------- method `status` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 59 |         assert_eq!(ticket.status(), "To-Do");
[INFO] [stdout]    |                           ^^^^^^ private field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> exercises/04_traits/12_drop/src/lib.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `encapsulation` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DropBomb`
[INFO] [stdout]   --> exercises/04_traits/12_drop/src/lib.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let bomb = DropBomb::new();
[INFO] [stdout]    |                    ^^^^^^^^ use of undeclared type `DropBomb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DropBomb`
[INFO] [stdout]   --> exercises/04_traits/12_drop/src/lib.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut bomb = DropBomb::new();
[INFO] [stdout]    |                        ^^^^^^^^ use of undeclared type `DropBomb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: TryFrom<String>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let status = Status::try_from("ToDO".to_string()).unwrap();
[INFO] [stdout]    |                      ^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<String>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `String` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `ticket`
[INFO] [stdout]   --> exercises/03_ticket_v1/06_ownership/src/lib.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let ticket = Ticket::new("A title".into(), "A description".into(), "To-Do".into());
[INFO] [stdout]    |             ------ move occurs because `ticket` has type `Ticket`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 60 |         assert_eq!(ticket.title(), "A title");
[INFO] [stdout]    |                           ------- `ticket` moved due to this method call
[INFO] [stdout] 61 |         assert_eq!(ticket.description(), "A description");
[INFO] [stdout]    |                    ^^^^^^ value used here after move
[INFO] [stdout]    |
[INFO] [stdout] note: `Ticket::title` takes ownership of the receiver `self`, which moves `ticket`
[INFO] [stdout]   --> exercises/03_ticket_v1/06_ownership/src/lib.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn title(self) -> String {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `ticket`
[INFO] [stdout]   --> exercises/03_ticket_v1/06_ownership/src/lib.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let ticket = Ticket::new("A title".into(), "A description".into(), "To-Do".into());
[INFO] [stdout]    |             ------ move occurs because `ticket` has type `Ticket`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 61 |         assert_eq!(ticket.description(), "A description");
[INFO] [stdout]    |                           ------------- `ticket` moved due to this method call
[INFO] [stdout] 62 |         assert_eq!(ticket.status(), "To-Do");
[INFO] [stdout]    |                    ^^^^^^ value used here after move
[INFO] [stdout]    |
[INFO] [stdout] note: `Ticket::description` takes ownership of the receiver `self`, which moves `ticket`
[INFO] [stdout]   --> exercises/03_ticket_v1/06_ownership/src/lib.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn description(self) -> String {
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: TryFrom<String>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let status = Status::try_from("inproGress".to_string()).unwrap();
[INFO] [stdout]    |                      ^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<String>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `String` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: TryFrom<String>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let status = Status::try_from("Done".to_string()).unwrap();
[INFO] [stdout]    |                      ^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<String>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `String` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: From<String>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let status = Status::try_from("ToDO".to_string()).unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<String>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `String` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: TryFrom<&str>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let status = Status::try_from("todo").unwrap();
[INFO] [stdout]    |                      ^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<&str>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `&str` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drop` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] error: could not compile `ownership` (lib test) due to 2 previous errors
[INFO] [stdout] error[E0277]: the trait bound `Status: TryFrom<&str>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:33:22
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let status = Status::try_from("inprogress").unwrap();
[INFO] [stdout]    |                      ^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<&str>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `&str` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: TryFrom<&str>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let status = Status::try_from("done").unwrap();
[INFO] [stdout]    |                      ^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<&str>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `&str` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: From<&str>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let status = Status::try_from("todo").unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<&str>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `&str` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: From<&str>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:33:22
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let status = Status::try_from("inprogress").unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<&str>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `&str` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Status: From<&str>` is not satisfied
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let status = Status::try_from("done").unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `From<&str>` is not implemented for `Status`
[INFO] [stdout]   --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | enum Status {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: required for `&str` to implement `Into<Status>`
[INFO] [stdout]    = note: required for `Status` to implement `TryFrom<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tryfrom` (lib test) due to 10 previous errors
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> exercises/07_threads/01_threads/src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `distance` in this scope
[INFO] [stdout]   --> exercises/02_basic_calculator/02_variables/src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     distance / time_elapsed
[INFO] [stdout]    |     ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"not yet implemented"`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     counter: todo!(),
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              expected type
[INFO] [stdout]   |              in this macro invocation
[INFO] [stdout]   |              this macro call doesn't expand to a type
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"not yet implemented"`
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(value: T, counter: todo!()) -> Self {
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   expected type
[INFO] [stdout]    |                                   in this macro invocation
[INFO] [stdout]    |                                   this macro call doesn't expand to a type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> exercises/07_threads/01_threads/src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `variables` (lib) due to 1 previous error
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]  --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Ticket {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/01_enum/src/lib.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used
[INFO] [stdout]   --> exercises/05_ticket_v2/01_enum/src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Ticket {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(title: String, description: String, status: String) -> Ticket {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn title(&self) -> &String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn description(&self) -> &String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn status(&self) -> &String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let _ = DropTracker::new((), Rc::clone(&counter));
[INFO] [stdout]    |                 ----------------     ^^^^^^^^^^^^^^^^^^^ expected `()`, found `Rc<RefCell<{integer}>>`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                  found struct `std::rc::Rc<std::cell::RefCell<{integer}>>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(value: T, counter: todo!()) -> Self {
[INFO] [stdout]    |            ^^^           ----------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:40:41
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let a = DropTracker::new(5, Rc::clone(&counter));
[INFO] [stdout]    |                     ----------------    ^^^^^^^^^^^^^^^^^^^ expected `()`, found `Rc<RefCell<{integer}>>`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                  found struct `std::rc::Rc<std::cell::RefCell<{integer}>>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(value: T, counter: todo!()) -> Self {
[INFO] [stdout]    |            ^^^           ----------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let b = DropTracker::new(6, Rc::clone(&counter));
[INFO] [stdout]    |                     ----------------    ^^^^^^^^^^^^^^^^^^^ expected `()`, found `Rc<RefCell<{integer}>>`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                  found struct `std::rc::Rc<std::cell::RefCell<{integer}>>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(value: T, counter: todo!()) -> Self {
[INFO] [stdout]    |            ^^^           ----------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interior_mutability` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "02bc77548ca303de07713a0312e3890cd71320e2b467a9ce0392fc4caecdf5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02bc77548ca303de07713a0312e3890cd71320e2b467a9ce0392fc4caecdf5b3", kill_on_drop: false }`
[INFO] [stdout] 02bc77548ca303de07713a0312e3890cd71320e2b467a9ce0392fc4caecdf5b3
