[INFO] fetching crate xtest 0.0.1...
[INFO] documenting xtest-0.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate xtest 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate xtest 0.0.1 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 xtest 0.0.1
[INFO] finished tweaking crates.io crate xtest 0.0.1
[INFO] tweaked toml for crates.io crate xtest 0.0.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate xtest 0.0.1 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 xdoc v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] c5aa8c32e35033400de2cbc30965bc4455a64d47580e864b0249b2f40d738031
[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" "c5aa8c32e35033400de2cbc30965bc4455a64d47580e864b0249b2f40d738031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5aa8c32e35033400de2cbc30965bc4455a64d47580e864b0249b2f40d738031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5aa8c32e35033400de2cbc30965bc4455a64d47580e864b0249b2f40d738031", kill_on_drop: false }`
[INFO] [stdout] c5aa8c32e35033400de2cbc30965bc4455a64d47580e864b0249b2f40d738031
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] a8502e45a0db5dd4f0f02fa9e1694aa3d0d44a691b8194f1e1b00f81f15ae9b1
[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" "a8502e45a0db5dd4f0f02fa9e1694aa3d0d44a691b8194f1e1b00f81f15ae9b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling cargo-readme v3.2.0
[INFO] [stderr]    Compiling xdoc v0.0.1
[INFO] [stderr]    Compiling xtest v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting xtest v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.23s
[INFO] running `Command { std: "docker" "inspect" "a8502e45a0db5dd4f0f02fa9e1694aa3d0d44a691b8194f1e1b00f81f15ae9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8502e45a0db5dd4f0f02fa9e1694aa3d0d44a691b8194f1e1b00f81f15ae9b1", kill_on_drop: false }`
[INFO] [stdout] a8502e45a0db5dd4f0f02fa9e1694aa3d0d44a691b8194f1e1b00f81f15ae9b1