[INFO] cloning repository https://github.com/nrc/rustc-version
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nrc/rustc-version" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Frustc-version", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Frustc-version'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa031141b124b10d90cfa720c8772320be863b10
[INFO] documenting nrc/rustc-version 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%2Fnrc%2Frustc-version" "/workspace/builds/worker-37/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-37/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrc/rustc-version 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/nrc/rustc-version
[INFO] finished tweaking git repo https://github.com/nrc/rustc-version
[INFO] tweaked toml for git repo https://github.com/nrc/rustc-version written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate git repo https://github.com/nrc/rustc-version 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 8baeffc553be423202518cce5c019fc36cb9378c8414b9986b634661e211bc6a
[INFO] running `Command { std: "docker" "start" "-a" "8baeffc553be423202518cce5c019fc36cb9378c8414b9986b634661e211bc6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8baeffc553be423202518cce5c019fc36cb9378c8414b9986b634661e211bc6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8baeffc553be423202518cce5c019fc36cb9378c8414b9986b634661e211bc6a", kill_on_drop: false }`
[INFO] [stdout] 8baeffc553be423202518cce5c019fc36cb9378c8414b9986b634661e211bc6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] ae59fe3a2eeab01d59ea5f61ec8ded2374f9a7390e99ea3ab0df8779d226a524
[INFO] running `Command { std: "docker" "start" "-a" "ae59fe3a2eeab01d59ea5f61ec8ded2374f9a7390e99ea3ab0df8779d226a524", kill_on_drop: false }`
[INFO] [stderr]  Documenting rustc-version v1.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "ae59fe3a2eeab01d59ea5f61ec8ded2374f9a7390e99ea3ab0df8779d226a524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae59fe3a2eeab01d59ea5f61ec8ded2374f9a7390e99ea3ab0df8779d226a524", kill_on_drop: false }`
[INFO] [stdout] ae59fe3a2eeab01d59ea5f61ec8ded2374f9a7390e99ea3ab0df8779d226a524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 0994da072894f628f34b2413d50e35a6a88b567a139b62bc230b4a8dd612637d
[INFO] running `Command { std: "docker" "start" "-a" "0994da072894f628f34b2413d50e35a6a88b567a139b62bc230b4a8dd612637d", kill_on_drop: false }`
[INFO] [stderr]  Documenting rustc-version v1.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0994da072894f628f34b2413d50e35a6a88b567a139b62bc230b4a8dd612637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0994da072894f628f34b2413d50e35a6a88b567a139b62bc230b4a8dd612637d", kill_on_drop: false }`
[INFO] [stdout] 0994da072894f628f34b2413d50e35a6a88b567a139b62bc230b4a8dd612637d