[INFO] cloning repository https://github.com/27343sven/rust_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/27343sven/rust_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F27343sven%2Frust_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F27343sven%2Frust_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34e78f56b67ce8fbad8c4ddb57024db7f8c649ae
[INFO] documenting 27343sven/rust_exercises 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%2F27343sven%2Frust_exercises" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/27343sven/rust_exercises
[INFO] finished tweaking git repo https://github.com/27343sven/rust_exercises
[INFO] tweaked toml for git repo https://github.com/27343sven/rust_exercises written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/27343sven/rust_exercises 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/27343sven/rust_exercises 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] [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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-iterator-derive v0.7.0
[INFO] [stderr]   Downloaded quote v1.0.18
[INFO] [stderr]   Downloaded int-enum-impl v0.4.0
[INFO] [stderr]   Downloaded enum-iterator v0.7.0
[INFO] [stderr]   Downloaded int-enum v0.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.37
[INFO] [stderr]   Downloaded num_threads v0.1.5
[INFO] [stderr]   Downloaded time v0.3.9
[INFO] [stderr]   Downloaded unicode-segmentation v1.9.0
[INFO] [stderr]   Downloaded syn v1.0.92
[INFO] [stderr]   Downloaded serde v1.0.137
[INFO] [stderr]   Downloaded libc v0.2.125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f40ca17189851e7ac2e98f1ac503145e7aebf18d2ce11f1fdbb79c5507d34915
[INFO] running `Command { std: "docker" "start" "-a" "f40ca17189851e7ac2e98f1ac503145e7aebf18d2ce11f1fdbb79c5507d34915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f40ca17189851e7ac2e98f1ac503145e7aebf18d2ce11f1fdbb79c5507d34915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40ca17189851e7ac2e98f1ac503145e7aebf18d2ce11f1fdbb79c5507d34915", kill_on_drop: false }`
[INFO] [stdout] f40ca17189851e7ac2e98f1ac503145e7aebf18d2ce11f1fdbb79c5507d34915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 72189ad3831bd5c5c6c6c4e8c85ddd4d7a59a520088c55c797193120078e0d35
[INFO] running `Command { std: "docker" "start" "-a" "72189ad3831bd5c5c6c6c4e8c85ddd4d7a59a520088c55c797193120078e0d35", 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 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking num_threads v0.1.5
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]  Documenting concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]  Documenting miniexcel v0.1.0 (/opt/rustwide/workdir/miniexcel)
[INFO] [stderr]  Documenting assembly_line v0.1.0 (/opt/rustwide/workdir/assembly_line)
[INFO] [stderr]  Documenting eq_resistance v0.1.0 (/opt/rustwide/workdir/eq_resistance)
[INFO] [stderr]  Documenting structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stderr]  Documenting rust_oo v0.1.0 (/opt/rustwide/workdir/rust_oo)
[INFO] [stderr]  Documenting smart_pointers v0.1.0 (/opt/rustwide/workdir/smart_pointers)
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]  Documenting fitbits v0.1.0 (/opt/rustwide/workdir/fitbits)
[INFO] [stderr]  Documenting blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]  Documenting minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling enum-iterator-derive v0.7.0
[INFO] [stderr]     Checking enum-iterator v0.7.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling int-enum-impl v0.4.0
[INFO] [stderr]     Checking int-enum v0.4.0
[INFO] [stderr]  Documenting exercism v0.1.0 (/opt/rustwide/workdir/exercism)
[INFO] [stderr]  Documenting enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stdout] error: missing discriminant value
[INFO] [stdout]   --> enums/src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |     V4(u8, u8, u8, u8),
[INFO] [stdout]    |       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v4` should have an upper camel case name
[INFO] [stdout]  --> enums/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     v4,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v6` should have an upper camel case name
[INFO] [stdout]  --> enums/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     v6,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> exercism/src/matching_brackets.rs:123:94
[INFO] [stdout]     |
[INFO] [stdout] 123 |           let input = "\\left(\\begin{array}{cc} \\frac{1}{3} & x\\\\ \\mathrm{e}^{x} &... x^2 \
[INFO] [stdout]     |  ______________________________________________________________________________________________^
[INFO] [stdout] ...   |
[INFO] [stdout] 129 | |                  \\end{array}\\right)";
[INFO] [stdout]     | |_________________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `enums`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> exercism/src/resistor_color.rs:5:45
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, PartialEq, Clone, Copy, Eq, IntEnum, IntoEnumIterator)]
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]   = help: try referring to `IntEnum` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]   = help: the derive macro `IntEnum` may come from an old version of the `int_enum_impl` crate, try updating your dependency with `cargo update -p int_enum_impl`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]   = note: this warning originates in the derive macro `IntEnum` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72189ad3831bd5c5c6c6c4e8c85ddd4d7a59a520088c55c797193120078e0d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72189ad3831bd5c5c6c6c4e8c85ddd4d7a59a520088c55c797193120078e0d35", kill_on_drop: false }`
[INFO] [stdout] 72189ad3831bd5c5c6c6c4e8c85ddd4d7a59a520088c55c797193120078e0d35
