[INFO] cloning repository https://github.com/ehlxr/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ehlxr/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2c3d879ccdc4ad3538ccf5f5dde0fe05bcaa392
[INFO] documenting ehlxr/rust_study 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%2Fehlxr%2Frust_study" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehlxr/rust_study 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/ehlxr/rust_study
[INFO] finished tweaking git repo https://github.com/ehlxr/rust_study
[INFO] tweaked toml for git repo https://github.com/ehlxr/rust_study written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ehlxr/rust_study 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] dc1b105bfe1e2980e2cd697e98ef6019b4e458daf8b85497d4844c072eac9b70
[INFO] running `Command { std: "docker" "start" "-a" "dc1b105bfe1e2980e2cd697e98ef6019b4e458daf8b85497d4844c072eac9b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc1b105bfe1e2980e2cd697e98ef6019b4e458daf8b85497d4844c072eac9b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc1b105bfe1e2980e2cd697e98ef6019b4e458daf8b85497d4844c072eac9b70", kill_on_drop: false }`
[INFO] [stdout] dc1b105bfe1e2980e2cd697e98ef6019b4e458daf8b85497d4844c072eac9b70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b9b3c37d7cc12583623c1d3165986462509911d98039d483a2a2c28a6bba0587
[INFO] running `Command { std: "docker" "start" "-a" "b9b3c37d7cc12583623c1d3165986462509911d98039d483a2a2c28a6bba0587", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "b9b3c37d7cc12583623c1d3165986462509911d98039d483a2a2c28a6bba0587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9b3c37d7cc12583623c1d3165986462509911d98039d483a2a2c28a6bba0587", kill_on_drop: false }`
[INFO] [stdout] b9b3c37d7cc12583623c1d3165986462509911d98039d483a2a2c28a6bba0587
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 946bbeee2bb29b98803c064d268e64a8edfdd97f54b15d7d9f164251784d0f63
[INFO] running `Command { std: "docker" "start" "-a" "946bbeee2bb29b98803c064d268e64a8edfdd97f54b15d7d9f164251784d0f63", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "946bbeee2bb29b98803c064d268e64a8edfdd97f54b15d7d9f164251784d0f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946bbeee2bb29b98803c064d268e64a8edfdd97f54b15d7d9f164251784d0f63", kill_on_drop: false }`
[INFO] [stdout] 946bbeee2bb29b98803c064d268e64a8edfdd97f54b15d7d9f164251784d0f63