[INFO] fetching crate rusturn 0.0.3...
[INFO] documenting rusturn-0.0.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rusturn 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rusturn 0.0.3 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 crates.io crate rusturn 0.0.3
[INFO] finished tweaking crates.io crate rusturn 0.0.3
[INFO] tweaked toml for crates.io crate rusturn 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 fibers_timeout_queue v0.1.0
[INFO] [stderr]   Downloaded fibers_transport v0.1.2
[INFO] [stderr]   Downloaded rustun v0.3.5
[INFO] [stderr]   Downloaded stun_codec v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] a0d9dd2e444c271008feeaeda79034a945b13a2b8c98c79ad4af058feb1ef7f4
[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" "a0d9dd2e444c271008feeaeda79034a945b13a2b8c98c79ad4af058feb1ef7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0d9dd2e444c271008feeaeda79034a945b13a2b8c98c79ad4af058feb1ef7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0d9dd2e444c271008feeaeda79034a945b13a2b8c98c79ad4af058feb1ef7f4", kill_on_drop: false }`
[INFO] [stdout] a0d9dd2e444c271008feeaeda79034a945b13a2b8c98c79ad4af058feb1ef7f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f294088855a4d72f4a512c8c6ba7f4eaf34a95ce77e103831a4db770870a28e5
[INFO] running `Command { std: "docker" "start" "-a" "f294088855a4d72f4a512c8c6ba7f4eaf34a95ce77e103831a4db770870a28e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking factory v0.1.2
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking fibers v0.1.13
[INFO] [stderr]     Checking fibers_timeout_queue v0.1.0
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking bytecodec v0.4.13
[INFO] [stderr]     Checking fibers_transport v0.1.2
[INFO] [stderr]     Checking stun_codec v0.1.12
[INFO] [stderr]     Checking rustun v0.3.5
[INFO] [stderr]  Documenting rusturn v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.83s
[INFO] running `Command { std: "docker" "inspect" "f294088855a4d72f4a512c8c6ba7f4eaf34a95ce77e103831a4db770870a28e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f294088855a4d72f4a512c8c6ba7f4eaf34a95ce77e103831a4db770870a28e5", kill_on_drop: false }`
[INFO] [stdout] f294088855a4d72f4a512c8c6ba7f4eaf34a95ce77e103831a4db770870a28e5