[INFO] cloning repository https://github.com/bytecurry/hyperfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bytecurry/hyperfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbytecurry%2Fhyperfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbytecurry%2Fhyperfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3db5af9e736836ddf59086fb075afdfc9ef270a
[INFO] documenting bytecurry/hyperfs against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbytecurry%2Fhyperfs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bytecurry/hyperfs on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bytecurry/hyperfs
[INFO] finished tweaking git repo https://github.com/bytecurry/hyperfs
[INFO] tweaked toml for git repo https://github.com/bytecurry/hyperfs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/bytecurry/hyperfs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded http-body v0.3.0
[INFO] [stderr]   Downloaded bytes v0.5.3
[INFO] [stderr]   Downloaded hyper v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21910be54b434879274c9ab0e7ea552c4f9c4da984d712c131aa375ec0d9a533
[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" "21910be54b434879274c9ab0e7ea552c4f9c4da984d712c131aa375ec0d9a533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21910be54b434879274c9ab0e7ea552c4f9c4da984d712c131aa375ec0d9a533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21910be54b434879274c9ab0e7ea552c4f9c4da984d712c131aa375ec0d9a533", kill_on_drop: false }`
[INFO] [stdout] 21910be54b434879274c9ab0e7ea552c4f9c4da984d712c131aa375ec0d9a533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79cfb9cb2851ce24fe4af574d00248b39294a2af2a5d7c9155934b427bd72f09
[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" "79cfb9cb2851ce24fe4af574d00248b39294a2af2a5d7c9155934b427bd72f09", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking http-body v0.3.0
[INFO] [stderr]    Compiling tokio-macros v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]     Checking tokio v0.2.4
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking hyper v0.13.0
[INFO] [stderr]  Documenting hyperfs v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.23s
[INFO] running `Command { std: "docker" "inspect" "79cfb9cb2851ce24fe4af574d00248b39294a2af2a5d7c9155934b427bd72f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79cfb9cb2851ce24fe4af574d00248b39294a2af2a5d7c9155934b427bd72f09", kill_on_drop: false }`
[INFO] [stdout] 79cfb9cb2851ce24fe4af574d00248b39294a2af2a5d7c9155934b427bd72f09