[INFO] cloning repository https://github.com/hone/helix_docopt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hone/helix_docopt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhone%2Fhelix_docopt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhone%2Fhelix_docopt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68da166b35dd14884bf96f25e00520749e45e98b
[INFO] documenting hone/helix_docopt 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%2Fhone%2Fhelix_docopt" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hone/helix_docopt 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/hone/helix_docopt
[INFO] finished tweaking git repo https://github.com/hone/helix_docopt
[INFO] tweaked toml for git repo https://github.com/hone/helix_docopt written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/hone/helix_docopt 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 helix v0.7.3
[INFO] [stderr]   Downloaded libcruby-sys v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 0a947bfdc67d4796bf81d2530fe42621658fc43e658cac49b73adcb3fff6fab8
[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" "0a947bfdc67d4796bf81d2530fe42621658fc43e658cac49b73adcb3fff6fab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a947bfdc67d4796bf81d2530fe42621658fc43e658cac49b73adcb3fff6fab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a947bfdc67d4796bf81d2530fe42621658fc43e658cac49b73adcb3fff6fab8", kill_on_drop: false }`
[INFO] [stdout] 0a947bfdc67d4796bf81d2530fe42621658fc43e658cac49b73adcb3fff6fab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 404ff84b49873c3bd22f65b14c038644367f3feb26561e81a65f0ac01fc28515
[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" "404ff84b49873c3bd22f65b14c038644367f3feb26561e81a65f0ac01fc28515", kill_on_drop: false }`
[INFO] [stderr]    Compiling libcruby-sys v0.7.3
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking cstr-macro v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking helix v0.7.3
[INFO] [stderr]     Checking docopt v0.8.1
[INFO] [stderr]  Documenting helix_docopt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.65s
[INFO] running `Command { std: "docker" "inspect" "404ff84b49873c3bd22f65b14c038644367f3feb26561e81a65f0ac01fc28515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "404ff84b49873c3bd22f65b14c038644367f3feb26561e81a65f0ac01fc28515", kill_on_drop: false }`
[INFO] [stdout] 404ff84b49873c3bd22f65b14c038644367f3feb26561e81a65f0ac01fc28515
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5f0ebcc4ef2470851f2a9a893590d7a8f4c37112b67690ac2e3a2e67ec5d195
[INFO] running `Command { std: "docker" "start" "-a" "c5f0ebcc4ef2470851f2a9a893590d7a8f4c37112b67690ac2e3a2e67ec5d195", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.31
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]    Compiling libcruby-sys v0.7.3
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking cstr-macro v0.1.0
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking helix v0.7.3
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]     Checking docopt v0.8.1
[INFO] [stderr]  Documenting helix_docopt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.32s
[INFO] running `Command { std: "docker" "inspect" "c5f0ebcc4ef2470851f2a9a893590d7a8f4c37112b67690ac2e3a2e67ec5d195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f0ebcc4ef2470851f2a9a893590d7a8f4c37112b67690ac2e3a2e67ec5d195", kill_on_drop: false }`
[INFO] [stdout] c5f0ebcc4ef2470851f2a9a893590d7a8f4c37112b67690ac2e3a2e67ec5d195