[INFO] fetching crate rexpect 0.4.0...
[INFO] documenting rexpect-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rexpect 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rexpect 0.4.0 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 rexpect 0.4.0
[INFO] finished tweaking crates.io crate rexpect 0.4.0
[INFO] tweaked toml for crates.io crate rexpect 0.4.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rexpect 0.4.0 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 cfg-if v0.1.2
[INFO] [stderr]   Downloaded cc v1.0.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.5
[INFO] [stderr]   Downloaded backtrace-sys v0.1.14
[INFO] [stderr]   Downloaded backtrace v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] aa004f850faf42a71a086bce3f40ffd295b8d5d38f2d8d45c14a32a546850193
[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" "aa004f850faf42a71a086bce3f40ffd295b8d5d38f2d8d45c14a32a546850193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa004f850faf42a71a086bce3f40ffd295b8d5d38f2d8d45c14a32a546850193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa004f850faf42a71a086bce3f40ffd295b8d5d38f2d8d45c14a32a546850193", kill_on_drop: false }`
[INFO] [stdout] aa004f850faf42a71a086bce3f40ffd295b8d5d38f2d8d45c14a32a546850193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 5058b514d762455e5d19c499c01676e1a01f66b87f9433150643cf35df1de594
[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" "5058b514d762455e5d19c499c01676e1a01f66b87f9433150643cf35df1de594", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling cc v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.14
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]  Documenting rexpect v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.61s
[INFO] running `Command { std: "docker" "inspect" "5058b514d762455e5d19c499c01676e1a01f66b87f9433150643cf35df1de594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5058b514d762455e5d19c499c01676e1a01f66b87f9433150643cf35df1de594", kill_on_drop: false }`
[INFO] [stdout] 5058b514d762455e5d19c499c01676e1a01f66b87f9433150643cf35df1de594