[INFO] cloning repository https://github.com/jeysal/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeysal/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeysal%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeysal%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bc7c13833bb9d5ee9017012e479ed99a23a78ee
[INFO] documenting jeysal/rust-playground 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%2Fjeysal%2Frust-playground" "/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/jeysal/rust-playground 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/jeysal/rust-playground
[INFO] finished tweaking git repo https://github.com/jeysal/rust-playground
[INFO] tweaked toml for git repo https://github.com/jeysal/rust-playground written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jeysal/rust-playground 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]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.0.4
[INFO] [stderr]   Downloaded aho-corasick v0.6.7
[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] bd5021fd96cc335a9fb60b847ddf2f26f971dea0b712af4dace93e67a036902c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bd5021fd96cc335a9fb60b847ddf2f26f971dea0b712af4dace93e67a036902c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd5021fd96cc335a9fb60b847ddf2f26f971dea0b712af4dace93e67a036902c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5021fd96cc335a9fb60b847ddf2f26f971dea0b712af4dace93e67a036902c", kill_on_drop: false }`
[INFO] [stdout] bd5021fd96cc335a9fb60b847ddf2f26f971dea0b712af4dace93e67a036902c
[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] 5142b62cdc1c147cbfdd7f995e61de1a651f6e8912ef1322a394b7cbd5627670
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5142b62cdc1c147cbfdd7f995e61de1a651f6e8912ef1322a394b7cbd5627670", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]  Documenting fibonacci v0.1.0 (/opt/rustwide/workdir/fibonacci)
[INFO] [stderr]  Documenting temp_conv v0.1.0 (/opt/rustwide/workdir/temp_conv)
[INFO] [stderr]  Documenting impl_conflict v0.1.0 (/opt/rustwide/workdir/impl_conflict)
[INFO] [stderr]  Documenting largest v0.1.0 (/opt/rustwide/workdir/largest)
[INFO] [stderr]  Documenting hello v0.1.0 (/opt/rustwide/workdir/hello)
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]  Documenting guess v0.1.0 (/opt/rustwide/workdir/guess)
[INFO] [stderr]     Checking aho-corasick v0.6.7
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v1.0.4
[INFO] [stderr]  Documenting minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]  Documenting collections v0.1.0 (/opt/rustwide/workdir/collections)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.91s
[INFO] running `Command { std: "docker" "inspect" "5142b62cdc1c147cbfdd7f995e61de1a651f6e8912ef1322a394b7cbd5627670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5142b62cdc1c147cbfdd7f995e61de1a651f6e8912ef1322a394b7cbd5627670", kill_on_drop: false }`
[INFO] [stdout] 5142b62cdc1c147cbfdd7f995e61de1a651f6e8912ef1322a394b7cbd5627670
[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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cee8b0c71226d2ffbcfeb08735b19cf6763d3d7e7dc9408518fb197efefacaff
[INFO] running `Command { std: "docker" "start" "-a" "cee8b0c71226d2ffbcfeb08735b19cf6763d3d7e7dc9408518fb197efefacaff", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "cee8b0c71226d2ffbcfeb08735b19cf6763d3d7e7dc9408518fb197efefacaff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee8b0c71226d2ffbcfeb08735b19cf6763d3d7e7dc9408518fb197efefacaff", kill_on_drop: false }`
[INFO] [stdout] cee8b0c71226d2ffbcfeb08735b19cf6763d3d7e7dc9408518fb197efefacaff