[INFO] cloning repository https://github.com/dev-gm/matrices
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dev-gm/matrices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-gm%2Fmatrices", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-gm%2Fmatrices'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0c3b4ae8adf90a75711055d3c3fe6f88a050975
[INFO] documenting dev-gm/matrices against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-gm%2Fmatrices" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dev-gm/matrices on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dev-gm/matrices
[INFO] finished tweaking git repo https://github.com/dev-gm/matrices
[INFO] tweaked toml for git repo https://github.com/dev-gm/matrices written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dev-gm/matrices 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-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29375b58400bd437838c8f2ad7f8ce7bd69636849e517246ab43ea9fbe4f91f4
[INFO] running `Command { std: "docker" "start" "-a" "29375b58400bd437838c8f2ad7f8ce7bd69636849e517246ab43ea9fbe4f91f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29375b58400bd437838c8f2ad7f8ce7bd69636849e517246ab43ea9fbe4f91f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29375b58400bd437838c8f2ad7f8ce7bd69636849e517246ab43ea9fbe4f91f4", kill_on_drop: false }`
[INFO] [stdout] 29375b58400bd437838c8f2ad7f8ce7bd69636849e517246ab43ea9fbe4f91f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cc49189981b80a279cbb8cbdb616126a4f0089778737ccd549484f52576c264
[INFO] running `Command { std: "docker" "start" "-a" "9cc49189981b80a279cbb8cbdb616126a4f0089778737ccd549484f52576c264", kill_on_drop: false }`
[INFO] [stderr]  Documenting math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `{`, found `}`
[INFO] [stdout]   --> src/matrix.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     }
[INFO] [stdout]    |     ^ expected `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found `}`
[INFO] [stdout]   --> src/group.rs:11:64
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn identity(&self, key: OperationType) -> Option<Box<Self>>
[INFO] [stdout]    |                                                                ^ help: add `;` here
[INFO] [stdout] 12 | }
[INFO] [stdout]    | - unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `zero` has an incompatible type for trait
[INFO] [stdout]   --> src/matrix.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn zero(&self) -> Box<Self> {
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       expected `matrix::Matrix<T>`, found `std::boxed::Box<matrix::Matrix<T>>`
[INFO] [stdout]    |                       help: change the output type to match the trait: `matrix::Matrix<T>`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/group.rs:7:23
[INFO] [stdout]    |
[INFO] [stdout] 7  |     fn zero(&self) -> Self; // self * zero() == zero() and self + zero() == self
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    = note: expected signature `fn(&matrix::Matrix<T>) -> matrix::Matrix<_>`
[INFO] [stdout]               found signature `fn(&matrix::Matrix<T>) -> std::boxed::Box<matrix::Matrix<_>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `operation` has an incompatible type for trait
[INFO] [stdout]   --> src/matrix.rs:75:48
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<(Operation<Self>, Box<Self>)> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                expected `group::Operation<matrix::Matrix<T>>`, found `(Operation<Matrix<T>>, Box<...>)`
[INFO] [stdout]    |                                                help: change the output type to match the trait: `std::option::Option<group::Operation<matrix::Matrix<T>>>`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/group.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn operation(&self, key: OperationType) -> Option<Operation<Self>>;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: expected signature `fn(&matrix::Matrix<T>, group::OperationType) -> std::option::Option<group::Operation<matrix::Matrix<T>>>`
[INFO] [stdout]               found signature `fn(&matrix::Matrix<T>, group::OperationType) -> std::option::Option<(group::Operation<matrix::Matrix<T>>, std::boxed::Box<matrix::Matrix<T>>)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `empty`, `identity`
[INFO] [stdout]   --> src/matrix.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<T: Group + ops::Add<Output = T>> Group for Matrix<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `empty`, `identity` in implementation
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/group.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn empty() -> Self;
[INFO] [stdout]    |     ------------------- `empty` from trait
[INFO] [stdout] ...
[INFO] [stdout] 11 |     fn identity(&self, key: OperationType) -> Option<Box<Self>>
[INFO] [stdout]    |     ----------------------------------------------------------- `identity` from trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0053.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `math`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name math src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=1d84d1103c9a7137 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9cc49189981b80a279cbb8cbdb616126a4f0089778737ccd549484f52576c264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cc49189981b80a279cbb8cbdb616126a4f0089778737ccd549484f52576c264", kill_on_drop: false }`
[INFO] [stdout] 9cc49189981b80a279cbb8cbdb616126a4f0089778737ccd549484f52576c264
