[INFO] updating cached repository https://github.com/treuherz/scriv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67f81b1bb0f18729ddc35aa9ee0687ebf09bf79b
[INFO] documenting treuherz/scriv against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreuherz%2Fscriv" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/treuherz/scriv 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 git repo https://github.com/treuherz/scriv
[INFO] finished tweaking git repo https://github.com/treuherz/scriv
[INFO] tweaked toml for git repo https://github.com/treuherz/scriv written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/treuherz/scriv 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 440643ae95a3ea1db1676eec62e5a2fbb215fd3fd4b452d46a5c2c2f0b033926
[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" "440643ae95a3ea1db1676eec62e5a2fbb215fd3fd4b452d46a5c2c2f0b033926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "440643ae95a3ea1db1676eec62e5a2fbb215fd3fd4b452d46a5c2c2f0b033926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "440643ae95a3ea1db1676eec62e5a2fbb215fd3fd4b452d46a5c2c2f0b033926", kill_on_drop: false }`
[INFO] [stdout] 440643ae95a3ea1db1676eec62e5a2fbb215fd3fd4b452d46a5c2c2f0b033926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a0829e4b91e9a03daa1de962260eba756022ceb7760599e46ae330b71fa4530e
[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" "a0829e4b91e9a03daa1de962260eba756022ceb7760599e46ae330b71fa4530e", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr]  Documenting scriv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "a0829e4b91e9a03daa1de962260eba756022ceb7760599e46ae330b71fa4530e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0829e4b91e9a03daa1de962260eba756022ceb7760599e46ae330b71fa4530e", kill_on_drop: false }`
[INFO] [stdout] a0829e4b91e9a03daa1de962260eba756022ceb7760599e46ae330b71fa4530e