[INFO] cloning repository https://github.com/qaoo8/LearnRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qaoo8/LearnRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2FLearnRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2FLearnRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd551db3741e16f1bb3b04f6de4f3c7b5b1615bd
[INFO] testing qaoo8/LearnRust against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2FLearnRust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/qaoo8/LearnRust
[INFO] finished tweaking git repo https://github.com/qaoo8/LearnRust
[INFO] tweaked toml for git repo https://github.com/qaoo8/LearnRust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/qaoo8/LearnRust on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/qaoo8/LearnRust 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff023e52aa98d397c7c37a6b99faa174bdb82f40e97e3722ce06812f4735d3c5
[INFO] running `Command { std: "docker" "start" "-a" "ff023e52aa98d397c7c37a6b99faa174bdb82f40e97e3722ce06812f4735d3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff023e52aa98d397c7c37a6b99faa174bdb82f40e97e3722ce06812f4735d3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff023e52aa98d397c7c37a6b99faa174bdb82f40e97e3722ce06812f4735d3c5", kill_on_drop: false }`
[INFO] [stdout] ff023e52aa98d397c7c37a6b99faa174bdb82f40e97e3722ce06812f4735d3c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04f9701fb9cb7f1a3997906829f50ce0b2639cb9f5e09ef554985b0c153e61b5
[INFO] running `Command { std: "docker" "start" "-a" "04f9701fb9cb7f1a3997906829f50ce0b2639cb9f5e09ef554985b0c153e61b5", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling escargot v0.5.10
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hello_macro v0.1.0 (/opt/rustwide/workdir/Macros/Procedural Macros/hello_macro)
[INFO] [stderr]    Compiling string_transformer v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/String Transformer)
[INFO] [stderr]    Compiling generics_in_structs v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Generic Data Types/Generics in Structs)
[INFO] [stderr]    Compiling loop_over_vector_with_iterators v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Loop Over Vector With Iterators)
[INFO] [stderr]    Compiling lamp_with_switchers v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Smart Pointers/Switch the Lamp)
[INFO] [stderr]    Compiling combine_traits v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/Combine Traits)
[INFO] [stderr]    Compiling modifying_a_hashmap v0.1.0 (/opt/rustwide/workdir/Common Collections/Hashmaps/More Fruits)
[INFO] [stderr]    Compiling count_progress v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Count Progress)
[INFO] [stdout] error: expected identifier, found `)`
[INFO] [stdout]   --> Generic Types, Traits, and Lifetime/Traits/Combine Traits/src/lib.rs:21:26
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn some_func(item: ??) -> bool {
[INFO] [stdout]    |                          ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `item` in this scope
[INFO] [stdout]   --> Generic Types, Traits, and Lifetime/Traits/Combine Traits/src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     item.some_function() && item.other_function()
[INFO] [stdout]    |     ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `item` in this scope
[INFO] [stdout]   --> Generic Types, Traits, and Lifetime/Traits/Combine Traits/src/lib.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |     item.some_function() && item.other_function()
[INFO] [stdout]    |                             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `combine_traits` (lib) due to 3 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected type, found `)`
[INFO] [stdout]   --> Common Collections/Strings/String Transformer/src/lib.rs:11:56
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn transformer(input: /* Write type of input */) -> /* Write type of result */ {
[INFO] [stdout]    |                                                        ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `{`
[INFO] [stdout]   --> Common Collections/Strings/String Transformer/src/lib.rs:11:88
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn transformer(input: /* Write type of input */) -> /* Write type of result */ {
[INFO] [stdout]    |                                                                                        ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `string_transformer` (lib) due to 2 previous errors
[INFO] [stdout] error[E0277]: a value of type `Vec<i32>` cannot be built from an iterator over elements of type `()`
[INFO] [stdout]  --> Standard Library Types/Iterators/Loop Over Vector With Iterators/src/lib.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     }).collect()
[INFO] [stdout]   |        ^^^^^^^ value of type `Vec<i32>` cannot be built from `std::iter::Iterator<Item=()>`
[INFO] [stdout]   |
[INFO] [stdout] help: the trait `FromIterator<()>` is not implemented for `Vec<i32>`
[INFO] [stdout]       but trait `FromIterator<i32>` is implemented for it
[INFO] [stdout]  --> /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/alloc/src/vec/mod.rs:3881:0
[INFO] [stdout]   = help: for that trait implementation, expected `i32`, found `()`
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]  --> Standard Library Types/Iterators/Loop Over Vector With Iterators/src/lib.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |       v.iter().map(|num| {
[INFO] [stdout]   |  _____-_------_^
[INFO] [stdout]   | |     | |
[INFO] [stdout]   | |     | `Iterator::Item` is `&i32` here
[INFO] [stdout]   | |     this expression has type `&Vec<i32>`
[INFO] [stdout] 3 | |         // TODO: Complete the function to multiply all the elements in the given vector
[INFO] [stdout] 4 | |     }).collect()
[INFO] [stdout]   | |______^ `Iterator::Item` changed to `()` here
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]  --> /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/iter/traits/iterator.rs:2067:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `loop_over_vector_with_iterators` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `basket`
[INFO] [stdout]   --> Common Collections/Hashmaps/More Fruits/src/lib.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_basket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fruit`
[INFO] [stdout]   --> Common Collections/Hashmaps/More Fruits/src/lib.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     for fruit in fruit_kinds {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fruit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> Standard Library Types/Iterators/Count Progress/src/lib.rs:20:67
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn count(map: &HashMap<String, Progress>, value: Progress) -> usize {
[INFO] [stdout]    |        -----                                                      ^^^^^ expected `usize`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> Standard Library Types/Iterators/Count Progress/src/lib.rs:36:77
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn count_stack(stack: &[HashMap<String, Progress>], value: Progress) -> usize {
[INFO] [stdout]    |        -----------                                                          ^^^^^ expected `usize`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `count_progress` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "04f9701fb9cb7f1a3997906829f50ce0b2639cb9f5e09ef554985b0c153e61b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f9701fb9cb7f1a3997906829f50ce0b2639cb9f5e09ef554985b0c153e61b5", kill_on_drop: false }`
[INFO] [stdout] 04f9701fb9cb7f1a3997906829f50ce0b2639cb9f5e09ef554985b0c153e61b5
