[INFO] crate rtd 0.3.0 is already in cache
[INFO] documenting rtd-0.3.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate rtd 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rtd 0.3.0 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtd 0.3.0
[INFO] finished tweaking crates.io crate rtd 0.3.0
[INFO] tweaked toml for crates.io crate rtd 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate rtd 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", 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] 866253d54caca2369654a63529eb2936ff6133865332f559db343bf1feb80c86
[INFO] running `Command { std: "docker" "start" "-a" "866253d54caca2369654a63529eb2936ff6133865332f559db343bf1feb80c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "866253d54caca2369654a63529eb2936ff6133865332f559db343bf1feb80c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "866253d54caca2369654a63529eb2936ff6133865332f559db343bf1feb80c86", kill_on_drop: false }`
[INFO] [stdout] 866253d54caca2369654a63529eb2936ff6133865332f559db343bf1feb80c86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 030ca56cb5a5c3c5ac079c495decb36061d0f40a2f68f2702fe2365d44268c85
[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" "030ca56cb5a5c3c5ac079c495decb36061d0f40a2f68f2702fe2365d44268c85", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking smallvec v1.3.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling standback v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking backtrace-sys v0.1.36
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling time v0.2.9
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking migrant_lib v0.28.0
[INFO] [stderr]  Documenting rtd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.72s
[INFO] running `Command { std: "docker" "inspect" "030ca56cb5a5c3c5ac079c495decb36061d0f40a2f68f2702fe2365d44268c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030ca56cb5a5c3c5ac079c495decb36061d0f40a2f68f2702fe2365d44268c85", kill_on_drop: false }`
[INFO] [stdout] 030ca56cb5a5c3c5ac079c495decb36061d0f40a2f68f2702fe2365d44268c85