[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 beta-2025-09-21 for beta-1.91-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqaoo8%2FLearnRust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/qaoo8/LearnRust on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 22bbf869d93119d4a4dfe300913488afe4da63f8fe5124867962b3042a7ebeb1 [INFO] running `Command { std: "docker" "start" "-a" "22bbf869d93119d4a4dfe300913488afe4da63f8fe5124867962b3042a7ebeb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22bbf869d93119d4a4dfe300913488afe4da63f8fe5124867962b3042a7ebeb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22bbf869d93119d4a4dfe300913488afe4da63f8fe5124867962b3042a7ebeb1", kill_on_drop: false }` [INFO] [stdout] 22bbf869d93119d4a4dfe300913488afe4da63f8fe5124867962b3042a7ebeb1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d4fc638a9e094fd21c9ce396a5487c31b50b25016b61a3a5dced125455aa37a [INFO] running `Command { std: "docker" "start" "-a" "1d4fc638a9e094fd21c9ce396a5487c31b50b25016b61a3a5dced125455aa37a", 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] 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 itoa v1.0.11 [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 ppv-lite86 v0.2.17 [INFO] [stderr] Compiling hello_macro v0.1.0 (/opt/rustwide/workdir/Macros/Procedural Macros/hello_macro) [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 declaring_a_vector v0.1.0 (/opt/rustwide/workdir/Common Collections/Vectors/Create a Vector on Your Own) [INFO] [stderr] Compiling advanced_errors v0.1.0 (/opt/rustwide/workdir/Error Handling/Errors Primer/Advanced Errors) [INFO] [stdout] error: expected type, found `{` [INFO] [stdout] --> Common Collections/Vectors/Create a Vector on Your Own/src/lib.rs:6:38 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn create_vector() -> /* TODO */ { [INFO] [stdout] | ^ expected type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `declaring_a_vector` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0277]: a value of type `Vec` 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` cannot be built from `std::iter::Iterator` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `Vec` [INFO] [stdout] but trait `FromIterator` is implemented for it [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` [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/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/iter/traits/iterator.rs:2014:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `loop_over_vector_with_iterators` (lib) due to 1 previous error [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors/src/lib.rs:13:34 [INFO] [stdout] | [INFO] [stdout] 13 | fn from(e: CreationError) -> Self { [INFO] [stdout] | ---- ^^^^ expected `ParsePosNonzeroError`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ParsePosNonzeroError` [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors/src/lib.rs:27:31 [INFO] [stdout] | [INFO] [stdout] 27 | let x: i64 = s.parse()?; [INFO] [stdout] | -------^ the trait `From` is not implemented for `ParsePosNonzeroError` [INFO] [stdout] | | [INFO] [stdout] | this can't be annotated with `?` because it has type `Result<_, ParseIntError>` [INFO] [stdout] | [INFO] [stdout] note: `ParsePosNonzeroError` needs to implement `From` [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors/src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | pub enum ParsePosNonzeroError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait [INFO] [stdout] = help: the trait `From` is not implemented for `ParsePosNonzeroError` [INFO] [stdout] but trait `From` is implemented for it [INFO] [stdout] = help: for that trait implementation, expected `CreationError`, found `ParseIntError` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `advanced_errors` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "1d4fc638a9e094fd21c9ce396a5487c31b50b25016b61a3a5dced125455aa37a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d4fc638a9e094fd21c9ce396a5487c31b50b25016b61a3a5dced125455aa37a", kill_on_drop: false }` [INFO] [stdout] 1d4fc638a9e094fd21c9ce396a5487c31b50b25016b61a3a5dced125455aa37a