[INFO] fetching crate gitignore 1.0.7...
[INFO] documenting gitignore-1.0.7 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate gitignore 1.0.7 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gitignore 1.0.7 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 gitignore 1.0.7
[INFO] finished tweaking crates.io crate gitignore 1.0.7
[INFO] tweaked toml for crates.io crate gitignore 1.0.7 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate gitignore 1.0.7 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9f8620982eb4bbe69a156bda7e43993a18681744e62b9dddf32e660eede0a667
[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" "9f8620982eb4bbe69a156bda7e43993a18681744e62b9dddf32e660eede0a667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f8620982eb4bbe69a156bda7e43993a18681744e62b9dddf32e660eede0a667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8620982eb4bbe69a156bda7e43993a18681744e62b9dddf32e660eede0a667", kill_on_drop: false }`
[INFO] [stdout] 9f8620982eb4bbe69a156bda7e43993a18681744e62b9dddf32e660eede0a667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 078c5cfb70b94122becb2174424a36ff835bbe3b6584943aa3e162b710291bcd
[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" "078c5cfb70b94122becb2174424a36ff835bbe3b6584943aa3e162b710291bcd", kill_on_drop: false }`
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking gitignore v1.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting gitignore v1.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:34:49
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ErrorCause::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "078c5cfb70b94122becb2174424a36ff835bbe3b6584943aa3e162b710291bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "078c5cfb70b94122becb2174424a36ff835bbe3b6584943aa3e162b710291bcd", kill_on_drop: false }`
[INFO] [stdout] 078c5cfb70b94122becb2174424a36ff835bbe3b6584943aa3e162b710291bcd