[INFO] cloning repository https://github.com/AlchemistPrimus/risc-vmm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlchemistPrimus/risc-vmm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlchemistPrimus%2Frisc-vmm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlchemistPrimus%2Frisc-vmm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c67cfeaf5bb4273bc1fb98f43c6057157ac9797a
[INFO] documenting AlchemistPrimus/risc-vmm against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlchemistPrimus%2Frisc-vmm" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AlchemistPrimus/risc-vmm
[INFO] finished tweaking git repo https://github.com/AlchemistPrimus/risc-vmm
[INFO] tweaked toml for git repo https://github.com/AlchemistPrimus/risc-vmm written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlchemistPrimus/risc-vmm on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlchemistPrimus/risc-vmm 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11a4bd446801f2a09ec42f676c3141e65c5a5a3d8b3a104dd29cb60672baa14f
[INFO] running `Command { std: "docker" "start" "-a" "11a4bd446801f2a09ec42f676c3141e65c5a5a3d8b3a104dd29cb60672baa14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11a4bd446801f2a09ec42f676c3141e65c5a5a3d8b3a104dd29cb60672baa14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a4bd446801f2a09ec42f676c3141e65c5a5a3d8b3a104dd29cb60672baa14f", kill_on_drop: false }`
[INFO] [stdout] 11a4bd446801f2a09ec42f676c3141e65c5a5a3d8b3a104dd29cb60672baa14f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3716380abf4e61400754862f6821c50f292b56675aab5acb326d77c92fe3fe99
[INFO] running `Command { std: "docker" "start" "-a" "3716380abf4e61400754862f6821c50f292b56675aab5acb326d77c92fe3fe99", kill_on_drop: false }`
[INFO] [stderr]  Documenting RISC-VMM v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: return types are denoted using `->`
[INFO] [stdout]   --> src/utils/cpu_utils.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn next(&mut self) => Options<Self::Item>{
[INFO] [stdout]    |                        ^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `->` instead
[INFO] [stdout]    |
[INFO] [stdout] 13 -     fn next(&mut self) => Options<Self::Item>{
[INFO] [stdout] 13 +     fn next(&mut self) -> Options<Self::Item>{
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: associated type in `impl` without body
[INFO] [stdout]   --> src/utils/cpu_utils.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     type IntoIter: Iterator<Item=Self::Item>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             help: provide a definition for the type: `= <type>;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: bounds on `type`s in `impl`s have no effect
[INFO] [stdout]   --> src/utils/cpu_utils.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |     type IntoIter: Iterator<Item=Self::Item>;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Options` in this scope
[INFO] [stdout]   --> src/utils/cpu_utils.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn next(&mut self) => Options<Self::Item>{
[INFO] [stdout]    |                           ^^^^^^^ help: an enum with a similar name exists: `Option`
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/option.rs:594:1
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named enum `Option` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `std::iter::IntoIterator` for type `utils::cpu_utils::Stack`
[INFO] [stdout]   --> src/utils/cpu_utils.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl IntoIterator for Stack {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: conflicting implementation in crate `core`:
[INFO] [stdout]            - impl<I> std::iter::IntoIterator for I
[INFO] [stdout]              where I: std::iter::Iterator;
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0119, E0412.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `RISC-VMM`
[INFO] running `Command { std: "docker" "inspect" "3716380abf4e61400754862f6821c50f292b56675aab5acb326d77c92fe3fe99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3716380abf4e61400754862f6821c50f292b56675aab5acb326d77c92fe3fe99", kill_on_drop: false }`
[INFO] [stdout] 3716380abf4e61400754862f6821c50f292b56675aab5acb326d77c92fe3fe99
