[INFO] cloning repository https://github.com/fospring/feature_workspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fospring/feature_workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffospring%2Ffeature_workspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffospring%2Ffeature_workspace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0671c4cf048086aa696489689708bb5056cc7dee
[INFO] documenting fospring/feature_workspace 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%2Ffospring%2Ffeature_workspace" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fospring/feature_workspace 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] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking git repo https://github.com/fospring/feature_workspace
[INFO] finished tweaking git repo https://github.com/fospring/feature_workspace
[INFO] tweaked toml for git repo https://github.com/fospring/feature_workspace written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/fospring/feature_workspace 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 88ab9c327a10375ecf1b4bad73a7cda52a93af905f21a5610bf6549f111eafcd
[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" "88ab9c327a10375ecf1b4bad73a7cda52a93af905f21a5610bf6549f111eafcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88ab9c327a10375ecf1b4bad73a7cda52a93af905f21a5610bf6549f111eafcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ab9c327a10375ecf1b4bad73a7cda52a93af905f21a5610bf6549f111eafcd", kill_on_drop: false }`
[INFO] [stdout] 88ab9c327a10375ecf1b4bad73a7cda52a93af905f21a5610bf6549f111eafcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1bfc79731828a8b1c7cefd9dc2eff3c688061af09a170170abd59ed11942d041
[INFO] running `Command { std: "docker" "start" "-a" "1bfc79731828a8b1c7cefd9dc2eff3c688061af09a170170abd59ed11942d041", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking fospring-view v0.1.0 (/opt/rustwide/workdir/fospring-view)
[INFO] [stderr]  Documenting fospring-view v0.1.0 (/opt/rustwide/workdir/fospring-view)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling fospring-cc v0.1.0 (/opt/rustwide/workdir/fospring-cc)
[INFO] [stderr]     Checking fospring-log v0.1.0 (/opt/rustwide/workdir/fospring-log)
[INFO] [stderr]  Documenting fospring-log v0.1.0 (/opt/rustwide/workdir/fospring-log)
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]  Documenting fospring-middleware v0.1.0 (/opt/rustwide/workdir/fospring-middleware)
[INFO] [stderr]  Documenting fospring v0.1.0 (/opt/rustwide/workdir/fospring)
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]  Documenting fospring-cc v0.1.0 (/opt/rustwide/workdir/fospring-cc)
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]  Documenting fospring-base v0.1.0 (/opt/rustwide/workdir/fospring-base)
[INFO] [stderr]     Checking argh v0.1.4
[INFO] [stderr]  Documenting xtask v0.1.0 (/opt/rustwide/workdir/xtask)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.36s
[INFO] running `Command { std: "docker" "inspect" "1bfc79731828a8b1c7cefd9dc2eff3c688061af09a170170abd59ed11942d041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bfc79731828a8b1c7cefd9dc2eff3c688061af09a170170abd59ed11942d041", kill_on_drop: false }`
[INFO] [stdout] 1bfc79731828a8b1c7cefd9dc2eff3c688061af09a170170abd59ed11942d041
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] ec6344e31587638240923e5f2fe49aec93eb33f8271b18431d6065c5e50293da
[INFO] running `Command { std: "docker" "start" "-a" "ec6344e31587638240923e5f2fe49aec93eb33f8271b18431d6065c5e50293da", 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" "ec6344e31587638240923e5f2fe49aec93eb33f8271b18431d6065c5e50293da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6344e31587638240923e5f2fe49aec93eb33f8271b18431d6065c5e50293da", kill_on_drop: false }`
[INFO] [stdout] ec6344e31587638240923e5f2fe49aec93eb33f8271b18431d6065c5e50293da