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[INFO] checking GandhiNN/rust-by-example against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGandhiNN%2Frust-by-example" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] crate git repo https://github.com/GandhiNN/rust-by-example already has a lockfile, it will not be regenerated
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[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking http v1.1.0
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[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling openssl v0.10.68
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[INFO] [stderr]     Checking bounded-channels v0.1.0 (/opt/rustwide/workdir/examples/bounded-channels)
[INFO] [stderr]     Checking generics-implementation v0.1.0 (/opt/rustwide/workdir/examples/generics-implementation)
[INFO] [stderr]     Checking pulling-results-out-of-options v0.1.0 (/opt/rustwide/workdir/examples/pulling-results-out-of-options)
[INFO] [stderr]     Checking traits-drop v0.1.0 (/opt/rustwide/workdir/examples/traits-drop)
[INFO] [stderr]     Checking unpacking-options-with-question-mark-2 v0.1.0 (/opt/rustwide/workdir/examples/unpacking-options-with-question-mark-2)
[INFO] [stderr]     Checking the-try-macro v0.1.0 (/opt/rustwide/workdir/examples/the-try-macro)
[INFO] [stderr]     Checking plain-scoped-threads v0.1.0 (/opt/rustwide/workdir/examples/plain-scoped-threads)
[INFO] [stdout] warning: field `number` is never read
[INFO] [stdout]   --> examples/unpacking-options-with-question-mark-2/src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct PhoneNumber {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 12 |     area_code: Option<u8>,
[INFO] [stdout] 13 |     number: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PhoneNumber` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> examples/the-try-macro/src/main.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let first_number = try!(first_number_str.parse::<i32>());
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> examples/the-try-macro/src/main.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let second_number = try!(second_number_str.parse::<i32>());
[INFO] [stdout]   |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking stack-basic v0.1.0 (/opt/rustwide/workdir/examples/stack-basic)
[INFO] [stderr]     Checking scoping-rules-destructor v0.1.0 (/opt/rustwide/workdir/examples/scoping-rules-destructor)
[INFO] [stderr]     Checking using-self-in-impl-block v0.1.0 (/opt/rustwide/workdir/examples/using-self-in-impl-block)
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/scoping-rules-destructor/src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let x = ToDrop;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]     Checking string-rule-4 v0.1.0 (/opt/rustwide/workdir/examples/string-rule-4)
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir/examples/hello-world)
[INFO] [stderr]     Checking generics-functions v0.1.0 (/opt/rustwide/workdir/examples/generics-functions)
[INFO] [stderr]     Checking using-result-in-main v0.1.0 (/opt/rustwide/workdir/examples/using-result-in-main)
[INFO] [stderr]     Checking combinators-map v0.1.0 (/opt/rustwide/workdir/examples/combinators-map)
[INFO] [stderr]     Checking result-basic v0.1.0 (/opt/rustwide/workdir/examples/result-basic)
[INFO] [stderr]     Checking defaults-get_or_insert v0.1.0 (/opt/rustwide/workdir/examples/defaults-get_or_insert)
[INFO] [stderr]     Checking defaults-or_else v0.1.0 (/opt/rustwide/workdir/examples/defaults-or_else)
[INFO] [stdout] warning: variants `Orange`, `Banana`, `Kiwi`, and `Lemon` are never constructed
[INFO] [stdout]  --> examples/defaults-get_or_insert/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Fruit {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 3 |     Apple,
[INFO] [stdout] 4 |     Orange,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 5 |     Banana,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     Kiwi,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     Lemon,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Fruit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking traits-derive v0.1.0 (/opt/rustwide/workdir/examples/traits-derive)
[INFO] [stdout] warning: variants `Apple`, `Orange`, and `Banana` are never constructed
[INFO] [stdout]  --> examples/defaults-or_else/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Fruit {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 3 |     Apple,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     Orange,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 5 |     Banana,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Fruit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking generics-traits v0.1.0 (/opt/rustwide/workdir/examples/generics-traits)
[INFO] [stderr]     Checking string-rule-2 v0.1.0 (/opt/rustwide/workdir/examples/string-rule-2)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/traits-derive/src/main.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Seconds(i32);
[INFO] [stdout]    |        ------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking math-sum-01 v0.1.0 (/opt/rustwide/workdir/examples/math-sum-01)
[INFO] [stderr]     Checking traits-operator-overloading v0.1.0 (/opt/rustwide/workdir/examples/traits-operator-overloading)
[INFO] [stderr]     Checking string-rule-1 v0.1.0 (/opt/rustwide/workdir/examples/string-rule-1)
[INFO] [stderr]     Checking senders-and-receivers v0.1.0 (/opt/rustwide/workdir/examples/senders-and-receivers)
[INFO] [stderr]     Checking map-for-result-2 v0.1.0 (/opt/rustwide/workdir/examples/map-for-result-2)
[INFO] [stderr]     Checking generics-intro v0.1.0 (/opt/rustwide/workdir/examples/generics-intro)
[INFO] [stderr]     Checking hashmap03 v0.1.0 (/opt/rustwide/workdir/examples/hashmap03)
[INFO] [stderr]     Checking other-uses-of-question-marks v0.1.0 (/opt/rustwide/workdir/examples/other-uses-of-question-marks)
[INFO] [stderr]     Checking transpose-results v0.1.0 (/opt/rustwide/workdir/examples/transpose-results)
[INFO] [stderr]     Checking aliases-for-result v0.1.0 (/opt/rustwide/workdir/examples/aliases-for-result)
[INFO] [stderr]     Checking macro-rules-overload v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-overload)
[INFO] [stderr]     Checking early-returns v0.1.0 (/opt/rustwide/workdir/examples/early-returns)
[INFO] [stderr]     Checking hashmap02 v0.1.0 (/opt/rustwide/workdir/examples/hashmap02)
[INFO] [stderr]     Checking download-async v0.1.0 (/opt/rustwide/workdir/examples/download-async)
[INFO] [stderr]     Checking macro-rules-basic v0.1.0 (/opt/rustwide/workdir/examples/macro-rules-basic)
[INFO] [stderr]     Checking concurrency-threads-simple v0.1.0 (/opt/rustwide/workdir/examples/concurrency-threads-simple)
[INFO] [stderr]     Checking borrowed-owned-types v0.1.0 (/opt/rustwide/workdir/examples/borrowed-owned-types)
[INFO] [stderr]     Checking ownership-borrow-checker v0.1.0 (/opt/rustwide/workdir/examples/ownership-borrow-checker)
[INFO] [stderr]     Checking scoping-rules-raii v0.1.0 (/opt/rustwide/workdir/examples/scoping-rules-raii)
[INFO] [stderr]     Checking analyzing-memory-layout v0.1.0 (/opt/rustwide/workdir/examples/analyzing-memory-layout)
[INFO] [stderr]     Checking traits-impl-trait v0.1.0 (/opt/rustwide/workdir/examples/traits-impl-trait)
[INFO] [stderr]     Checking csv-read-from-files v0.1.0 (/opt/rustwide/workdir/examples/csv-read-from-files)
[INFO] [stderr]     Checking csv-read-delimiter v0.1.0 (/opt/rustwide/workdir/examples/csv-read-delimiter)
[INFO] [stderr]     Checking csv-read-from-stdin v0.1.0 (/opt/rustwide/workdir/examples/csv-read-from-stdin)
[INFO] [stdout] warning: function `combine_vecs_explicit_return_type` is never used
[INFO] [stdout]  --> examples/traits-impl-trait/src/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn combine_vecs_explicit_return_type(
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unpacking-options-with-question-mark v0.1.0 (/opt/rustwide/workdir/examples/unpacking-options-with-question-mark)
[INFO] [stderr]     Checking state-modelling-using-enum-and-structs v0.1.0 (/opt/rustwide/workdir/examples/state-modelling-using-enum-and-structs)
[INFO] [stderr]     Checking traits-returning-traits-with-dyn v0.1.0 (/opt/rustwide/workdir/examples/traits-returning-traits-with-dyn)
[INFO] [stderr]     Checking combinators-and_then v0.1.0 (/opt/rustwide/workdir/examples/combinators-and_then)
[INFO] [stderr]     Checking boxing-errors v0.1.0 (/opt/rustwide/workdir/examples/boxing-errors)
[INFO] [stderr]     Checking defaults-or v0.1.0 (/opt/rustwide/workdir/examples/defaults-or)
[INFO] [stderr]     Checking introducing-question-mark v0.1.0 (/opt/rustwide/workdir/examples/introducing-question-mark)
[INFO] [stdout] warning: variants `Banana`, `Kiwi`, and `Lemon` are never constructed
[INFO] [stdout]  --> examples/defaults-or/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Fruit {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     Banana,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     Kiwi,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     Lemon,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Fruit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking result-handler v0.1.0 (/opt/rustwide/workdir/examples/result-handler)
[INFO] [stdout] error[E0601]: `main` function not found in crate `result_handler`
[INFO] [stdout]   --> examples/result-handler/src/main.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/result-handler/src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/result-handler/src/main.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn op_(x: f64, y: f64) -> MathResult {
[INFO] [stdout]    |        ---                    ^^^^^^^^^^ expected `Result<f64, MathError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<f64, MathError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `result-handler` (bin "result-handler") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/result-handler/src/main.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn op_(x: f64, y: f64) -> MathResult {
[INFO] [stdout]    |        ---                    ^^^^^^^^^^ expected `Result<f64, MathError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<f64, MathError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `result-handler` (bin "result-handler" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "3ae4320cfce6d682ecad80cc80fe12f4bf6e63a11851adc0265c74e202166821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae4320cfce6d682ecad80cc80fe12f4bf6e63a11851adc0265c74e202166821", kill_on_drop: false }`
[INFO] [stdout] 3ae4320cfce6d682ecad80cc80fe12f4bf6e63a11851adc0265c74e202166821
