[INFO] cloning repository https://github.com/rjzhb/MemoryAllocator-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rjzhb/MemoryAllocator-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjzhb%2FMemoryAllocator-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjzhb%2FMemoryAllocator-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5420cf5554e1f77ab10c7058b68d6cb8d5759feb
[INFO] testing rjzhb/MemoryAllocator-Rust 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%2Frjzhb%2FMemoryAllocator-Rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rjzhb/MemoryAllocator-Rust
[INFO] finished tweaking git repo https://github.com/rjzhb/MemoryAllocator-Rust
[INFO] tweaked toml for git repo https://github.com/rjzhb/MemoryAllocator-Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rjzhb/MemoryAllocator-Rust 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/rjzhb/MemoryAllocator-Rust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 74a7490bc4a15d8554f06b697f5bb84aa7c5f683346db50665852c2ab9471ae0
[INFO] running `Command { std: "docker" "start" "-a" "74a7490bc4a15d8554f06b697f5bb84aa7c5f683346db50665852c2ab9471ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74a7490bc4a15d8554f06b697f5bb84aa7c5f683346db50665852c2ab9471ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a7490bc4a15d8554f06b697f5bb84aa7c5f683346db50665852c2ab9471ae0", kill_on_drop: false }`
[INFO] [stdout] 74a7490bc4a15d8554f06b697f5bb84aa7c5f683346db50665852c2ab9471ae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 00b41f3bedef4090c0aa6c44936a6b8b07cb9f15b7cb96cbf9d142e36e2461e4
[INFO] running `Command { std: "docker" "start" "-a" "00b41f3bedef4090c0aa6c44936a6b8b07cb9f15b7cb96cbf9d142e36e2461e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling MemoryAllocator-Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:65:38
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let chunk: MemoryChunk = *it;
[INFO] [stdout]    |                        -----------   ^^^ expected `MemoryChunk`, found `LinkedList<MemoryChunk>`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        expected due to this
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `MemoryChunk`
[INFO] [stdout]               found struct `std::collections::LinkedList<MemoryChunk>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_back` found for enum `Option<T>` in the current scope
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:67:46
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 self.alloc_chunk_list.take().push_back(MemoryChunk::new(
[INFO] [stdout]    |                 -----------------------------^^^^^^^^^ method not found in `Option<std::collections::LinkedList<MemoryChunk>>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `push_back` exists on the type `std::collections::LinkedList<MemoryChunk>`
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/collections/linked_list.rs:918:5
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `std::collections::LinkedList<MemoryChunk>` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 self.alloc_chunk_list.take().expect("REASON").push_back(MemoryChunk::new(
[INFO] [stdout]    |                                             +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `empty` found for enum `Option<T>` in the current scope
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:73:48
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 if self.free_chunk_list.take().empty() {
[INFO] [stdout]    |                                                ^^^^^ method not found in `Option<std::collections::LinkedList<MemoryChunk>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `erase` found for enum `Option<T>` in the current scope
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:76:45
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 self.free_chunk_list.take().erase(it += 1);
[INFO] [stdout]    |                                             ^^^^^ method not found in `Option<std::collections::LinkedList<MemoryChunk>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0368]: binary assignment operation `+=` cannot be applied to type `&mut std::collections::LinkedList<MemoryChunk>`
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:76:51
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 self.free_chunk_list.take().erase(it += 1);
[INFO] [stdout]    |                                                   --^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   cannot use `+=` on type `&mut std::collections::LinkedList<MemoryChunk>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cursor_back_mut` found for enum `Option<T>` in the current scope
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:78:45
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 self.free_chunk_list.take().cursor_back_mut();
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^ method not found in `Option<std::collections::LinkedList<MemoryChunk>>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `cursor_back_mut` exists on the type `std::collections::LinkedList<MemoryChunk>`
[INFO] [stdout]   --> /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/collections/linked_list.rs:609:5
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `std::collections::LinkedList<MemoryChunk>` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 self.free_chunk_list.take().expect("REASON").cursor_back_mut();
[INFO] [stdout]    |                                            +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:93:48
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn alloc(&mut self, id: i32, size: i32) -> bool {}
[INFO] [stdout]    |        -----                                   ^^^^ expected `bool`, 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]   --> src/allocator/memory_allocator.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn free(id: i32) -> bool {}
[INFO] [stdout]    |        ----             ^^^^ expected `bool`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `list` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         list.push_back(MemoryChunk::new(INVALID, 0, size));
[INFO] [stdout]    |         ^^^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut list: LinkedList<MemoryChunk> = LinkedList::new();
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `list` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         list.push_back(MemoryChunk::new(INVALID, 0, size));
[INFO] [stdout]    |         ^^^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut list: LinkedList<MemoryChunk> = LinkedList::new();
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/allocator/memory_allocator.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn free(id: i32) -> bool {
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn free(_id: i32) -> bool {
[INFO] [stdout]    |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `INVALID`
[INFO] [stdout]    |
[INFO] [stdout] 85 -     fn free(id: i32) -> bool {
[INFO] [stdout] 85 +     fn free(INVALID: i32) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0368, E0596, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MemoryAllocator-Rust` (bin "MemoryAllocator-Rust") due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "00b41f3bedef4090c0aa6c44936a6b8b07cb9f15b7cb96cbf9d142e36e2461e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00b41f3bedef4090c0aa6c44936a6b8b07cb9f15b7cb96cbf9d142e36e2461e4", kill_on_drop: false }`
[INFO] [stdout] 00b41f3bedef4090c0aa6c44936a6b8b07cb9f15b7cb96cbf9d142e36e2461e4
