[INFO] cloning repository https://github.com/mikhalev-im/rust-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikhalev-im/rust-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikhalev-im%2Frust-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikhalev-im%2Frust-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b857064a5f0a89f3b651cd8ee8d1249cf9001445
[INFO] documenting mikhalev-im/rust-examples against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikhalev-im%2Frust-examples" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikhalev-im/rust-examples on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikhalev-im/rust-examples
[INFO] finished tweaking git repo https://github.com/mikhalev-im/rust-examples
[INFO] tweaked toml for git repo https://github.com/mikhalev-im/rust-examples written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/mikhalev-im/rust-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df3a7d9719423cda2d79add170d5d1aa495f1f5eaff49fd6f90dd2624dc97897
[INFO] running `Command { std: "docker" "start" "-a" "df3a7d9719423cda2d79add170d5d1aa495f1f5eaff49fd6f90dd2624dc97897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df3a7d9719423cda2d79add170d5d1aa495f1f5eaff49fd6f90dd2624dc97897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3a7d9719423cda2d79add170d5d1aa495f1f5eaff49fd6f90dd2624dc97897", kill_on_drop: false }`
[INFO] [stdout] df3a7d9719423cda2d79add170d5d1aa495f1f5eaff49fd6f90dd2624dc97897
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 414d5cda3fd847d7e51799acbe66ca1d4571cd072347ad1168ec027df1c7f960
[INFO] running `Command { std: "docker" "start" "-a" "414d5cda3fd847d7e51799acbe66ca1d4571cd072347ad1168ec027df1c7f960", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]  --> src/daos.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[path = "modules/mod.rs"] mod mod;
[INFO] [stdout]   |                                ^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: escape `mod` to use it as an identifier
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[path = "modules/mod.rs"] mod r#mod;
[INFO] [stdout]   |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rust_examples`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rust_examples 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=ccf4b33417bf032d -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "414d5cda3fd847d7e51799acbe66ca1d4571cd072347ad1168ec027df1c7f960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "414d5cda3fd847d7e51799acbe66ca1d4571cd072347ad1168ec027df1c7f960", kill_on_drop: false }`
[INFO] [stdout] 414d5cda3fd847d7e51799acbe66ca1d4571cd072347ad1168ec027df1c7f960