[INFO] fetching crate smol-attributes 0.1.3...
[INFO] documenting smol-attributes-0.1.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate smol-attributes 0.1.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate smol-attributes 0.1.3 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 smol-attributes 0.1.3
[INFO] finished tweaking crates.io crate smol-attributes 0.1.3
[INFO] tweaked toml for crates.io crate smol-attributes 0.1.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate smol-attributes 0.1.3 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 wepoll-binding v1.1.0
[INFO] [stderr]   Downloaded wepoll-sys v1.0.4
[INFO] [stderr]   Downloaded smol v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f4ac564fd73b7a5e5ed437a0f083fdc6969f5865ea20a440450c17938d5602f1
[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" "f4ac564fd73b7a5e5ed437a0f083fdc6969f5865ea20a440450c17938d5602f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4ac564fd73b7a5e5ed437a0f083fdc6969f5865ea20a440450c17938d5602f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ac564fd73b7a5e5ed437a0f083fdc6969f5865ea20a440450c17938d5602f1", kill_on_drop: false }`
[INFO] [stdout] f4ac564fd73b7a5e5ed437a0f083fdc6969f5865ea20a440450c17938d5602f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] de278da0a590fd2c37921ffdb542149f9ae18666b4e5d0978090a62a84d91e15
[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" "de278da0a590fd2c37921ffdb542149f9ae18666b4e5d0978090a62a84d91e15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking scoped-tls-hkt v0.1.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking quote v1.0.3
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking piper v0.1.1
[INFO] [stderr]     Checking smol v0.1.0
[INFO] [stderr]  Documenting smol-attributes v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.71s
[INFO] running `Command { std: "docker" "inspect" "de278da0a590fd2c37921ffdb542149f9ae18666b4e5d0978090a62a84d91e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de278da0a590fd2c37921ffdb542149f9ae18666b4e5d0978090a62a84d91e15", kill_on_drop: false }`
[INFO] [stdout] de278da0a590fd2c37921ffdb542149f9ae18666b4e5d0978090a62a84d91e15