[INFO] cloning repository https://github.com/diego-jamie-stream/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diego-jamie-stream/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiego-jamie-stream%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiego-jamie-stream%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1bd4562853ac8f8d3276221d9f23b30c7803634
[INFO] checking diego-jamie-stream/rustlings against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiego-jamie-stream%2Frustlings" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/diego-jamie-stream/rustlings
[INFO] finished tweaking git repo https://github.com/diego-jamie-stream/rustlings
[INFO] tweaked toml for git repo https://github.com/diego-jamie-stream/rustlings written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/diego-jamie-stream/rustlings on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 473994657c20bed94b4b3990e7d4ad3acae85940593e53a06c250ae40e0a505e
[INFO] running `Command { std: "docker" "start" "-a" "473994657c20bed94b4b3990e7d4ad3acae85940593e53a06c250ae40e0a505e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "473994657c20bed94b4b3990e7d4ad3acae85940593e53a06c250ae40e0a505e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "473994657c20bed94b4b3990e7d4ad3acae85940593e53a06c250ae40e0a505e", kill_on_drop: false }`
[INFO] [stdout] 473994657c20bed94b4b3990e7d4ad3acae85940593e53a06c250ae40e0a505e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61e98fd011cc8e4a212544106a3110ff299d042ffdcb35663037c5af550207a0
[INFO] running `Command { std: "docker" "start" "-a" "61e98fd011cc8e4a212544106a3110ff299d042ffdcb35663037c5af550207a0", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found `(`
[INFO] [stdout]  --> exercises/21_macros/macros4.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     }
[INFO] [stdout]   |      - expected `;`
[INFO] [stdout] 7 |     ($val:expr) => {
[INFO] [stdout]   |     ^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro requires a boolean expression as an argument
[INFO] [stdout]   --> exercises/17_tests/tests1.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         assert!();
[INFO] [stdout]    |         ^^^^^^^^^ boolean expression required
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro requires a boolean expression as an argument
[INFO] [stdout]   --> exercises/17_tests/tests1.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         assert!();
[INFO] [stdout]    |         ^^^^^^^^^ boolean expression required
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/18_iterators/iterators5.rs:28:72
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn count_iterator(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]   --> exercises/18_iterators/iterators5.rs:47:92
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn count_collection_iterator(collection: &[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] [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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "iterators5") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused macro definition: `my_macro`
[INFO] [stdout]  --> exercises/21_macros/macros1.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | macro_rules! my_macro {
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]   --> exercises/quizzes/quiz2.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum Command {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: expected function, found macro `my_macro`
[INFO] [stdout]  --> exercises/21_macros/macros1.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     my_macro();
[INFO] [stdout]   |     ^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout] help: use `!` to invoke the macro
[INFO] [stdout]   |
[INFO] [stdout] 9 |     my_macro!();
[INFO] [stdout]   |             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: cannot multiply `Result<i32, ParseIntError>` by `{integer}`
[INFO] [stdout]   --> exercises/13_error_handling/errors2.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Ok(qty * cost_per_item + processing_fee)
[INFO] [stdout]    |        --- ^ ------------- {integer}
[INFO] [stdout]    |        |
[INFO] [stdout]    |        Result<i32, ParseIntError>
[INFO] [stdout]    |
[INFO] [stdout] note: the foreign item type `Result<i32, ParseIntError>` doesn't implement `Mul<{integer}>`
[INFO] [stdout]   --> /rustc/82310651b93a594a3fd69015e1562186a080d94c/library/core/src/result.rs:548:1
[INFO] [stdout]    |
[INFO] [stdout]    = note: not implement `Mul<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "macros4" test) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant named `Resize` found for enum `Message`
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Message {
[INFO] [stdout]    | ------------ variant `Resize` not found here
[INFO] [stdout] ...
[INFO] [stdout] 67 |         state.process(Message::Resize {
[INFO] [stdout]    |                                ^^^^^^ variant not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Move` found for enum `Message` in the current scope
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:71:32
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Message {
[INFO] [stdout]    | ------------ variant or associated item `Move` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 71 |         state.process(Message::Move(Point { x: 10, y: 15 }));
[INFO] [stdout]    |                                ^^^^ variant or associated item not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Echo` found for enum `Message` in the current scope
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Message {
[INFO] [stdout]    | ------------ variant or associated item `Echo` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 72 |         state.process(Message::Echo(String::from("Hello world!")));
[INFO] [stdout]    |                                ^^^^ variant or associated item not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `ChangeColor` found for enum `Message` in the current scope
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:73:32
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Message {
[INFO] [stdout]    | ------------ variant or associated item `ChangeColor` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 73 |         state.process(Message::ChangeColor(255, 0, 255));
[INFO] [stdout]    |                                ^^^^^^^^^^^ variant or associated item not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Quit` found for enum `Message` in the current scope
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Message {
[INFO] [stdout]    | ------------ variant or associated item `Quit` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 74 |         state.process(Message::Quit);
[INFO] [stdout]    |                                ^^^^ variant or associated item not found in `Message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn process(&mut self, message: Message) {
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 `exercises` (bin "macros1") due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: could not compile `exercises` (bin "tests1" test) due to 2 previous errors
[INFO] [stderr] error: could not compile `exercises` (bin "enums3" test) due to 5 previous errors; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorRegularStruct` is never constructed
[INFO] [stdout]  --> exercises/07_structs/structs1.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ColorRegularStruct {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorTupleStruct` is never constructed
[INFO] [stdout]  --> exercises/07_structs/structs1.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct ColorTupleStruct(/* TODO: Add the fields that the test `tuple_structs` expects */);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnitStruct` is never constructed
[INFO] [stdout]  --> exercises/07_structs/structs1.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct UnitStruct;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "errors2" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "61e98fd011cc8e4a212544106a3110ff299d042ffdcb35663037c5af550207a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e98fd011cc8e4a212544106a3110ff299d042ffdcb35663037c5af550207a0", kill_on_drop: false }`
[INFO] [stdout] 61e98fd011cc8e4a212544106a3110ff299d042ffdcb35663037c5af550207a0