[INFO] cloning repository https://github.com/gpwclark/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gpwclark/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpwclark%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpwclark%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc02c9b4e669a3865709ba3108457a9e86a8df2b
[INFO] documenting gpwclark/learnrust against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpwclark%2Flearnrust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gpwclark/learnrust on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gpwclark/learnrust
[INFO] finished tweaking git repo https://github.com/gpwclark/learnrust
[INFO] tweaked toml for git repo https://github.com/gpwclark/learnrust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/gpwclark/learnrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b6c8efb5fde6e418528a56aafb1813595f518d2bfad8ce3d535c9cef2b70b5
[INFO] running `Command { std: "docker" "start" "-a" "71b6c8efb5fde6e418528a56aafb1813595f518d2bfad8ce3d535c9cef2b70b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b6c8efb5fde6e418528a56aafb1813595f518d2bfad8ce3d535c9cef2b70b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b6c8efb5fde6e418528a56aafb1813595f518d2bfad8ce3d535c9cef2b70b5", kill_on_drop: false }`
[INFO] [stdout] 71b6c8efb5fde6e418528a56aafb1813595f518d2bfad8ce3d535c9cef2b70b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ae2e0986466f8c595d14eae6a9049dfb6e98a1d92598dcf8146d409cf730150
[INFO] running `Command { std: "docker" "start" "-a" "8ae2e0986466f8c595d14eae6a9049dfb6e98a1d92598dcf8146d409cf730150", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking directories v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking confy v0.3.1
[INFO] [stderr]  Documenting learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.59s
[INFO] running `Command { std: "docker" "inspect" "8ae2e0986466f8c595d14eae6a9049dfb6e98a1d92598dcf8146d409cf730150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae2e0986466f8c595d14eae6a9049dfb6e98a1d92598dcf8146d409cf730150", kill_on_drop: false }`
[INFO] [stdout] 8ae2e0986466f8c595d14eae6a9049dfb6e98a1d92598dcf8146d409cf730150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 7c5d55a142a6f21a049a80a22854f0d2ae66b146c051eeefbb61545fef370b95
[INFO] running `Command { std: "docker" "start" "-a" "7c5d55a142a6f21a049a80a22854f0d2ae66b146c051eeefbb61545fef370b95", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking directories v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking confy v0.3.1
[INFO] [stderr]  Documenting learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.12s
[INFO] running `Command { std: "docker" "inspect" "7c5d55a142a6f21a049a80a22854f0d2ae66b146c051eeefbb61545fef370b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5d55a142a6f21a049a80a22854f0d2ae66b146c051eeefbb61545fef370b95", kill_on_drop: false }`
[INFO] [stdout] 7c5d55a142a6f21a049a80a22854f0d2ae66b146c051eeefbb61545fef370b95