[INFO] updating cached repository https://github.com/BProg/z-files
[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] b842f030927ec636e9038c6db7bdde76d5f0c044
[INFO] documenting BProg/z-files against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBProg%2Fz-files" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BProg/z-files on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BProg/z-files
[INFO] finished tweaking git repo https://github.com/BProg/z-files
[INFO] tweaked toml for git repo https://github.com/BProg/z-files written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/BProg/z-files already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36d766451c4fee0e39e650bc403938ac4e2412e7199716ff325bd0184d915eb6
[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" "36d766451c4fee0e39e650bc403938ac4e2412e7199716ff325bd0184d915eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d766451c4fee0e39e650bc403938ac4e2412e7199716ff325bd0184d915eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d766451c4fee0e39e650bc403938ac4e2412e7199716ff325bd0184d915eb6", kill_on_drop: false }`
[INFO] [stdout] 36d766451c4fee0e39e650bc403938ac4e2412e7199716ff325bd0184d915eb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67201d9684b8b59375e1d37f1d37bf20152c604cb710be2f0dc53c3e44c67f4d
[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" "67201d9684b8b59375e1d37f1d37bf20152c604cb710be2f0dc53c3e44c67f4d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking smallvec v0.4.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking clicolors-control v0.1.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.2.6
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking console v0.5.0
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]  Documenting xfile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.22s
[INFO] running `Command { std: "docker" "inspect" "67201d9684b8b59375e1d37f1d37bf20152c604cb710be2f0dc53c3e44c67f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67201d9684b8b59375e1d37f1d37bf20152c604cb710be2f0dc53c3e44c67f4d", kill_on_drop: false }`
[INFO] [stdout] 67201d9684b8b59375e1d37f1d37bf20152c604cb710be2f0dc53c3e44c67f4d