[INFO] fetching crate wl-clipboard-rs 0.4.0...
[INFO] documenting wl-clipboard-rs-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate wl-clipboard-rs 0.4.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate wl-clipboard-rs 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 wl-clipboard-rs 0.4.0
[INFO] finished tweaking crates.io crate wl-clipboard-rs 0.4.0
[INFO] tweaked toml for crates.io crate wl-clipboard-rs 0.4.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate wl-clipboard-rs 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 wayland-server v0.23.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c435011fed091e4300a5e541d3c1f603f9c241bd6bb28d7607e8b4f31612f457
[INFO] running `Command { std: "docker" "start" "-a" "c435011fed091e4300a5e541d3c1f603f9c241bd6bb28d7607e8b4f31612f457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c435011fed091e4300a5e541d3c1f603f9c241bd6bb28d7607e8b4f31612f457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c435011fed091e4300a5e541d3c1f603f9c241bd6bb28d7607e8b4f31612f457", kill_on_drop: false }`
[INFO] [stdout] c435011fed091e4300a5e541d3c1f603f9c241bd6bb28d7607e8b4f31612f457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] fc61ee013300204f9e1144b66164a38156b388e5d08dbd24b0360454fd8eb160
[INFO] running `Command { std: "docker" "start" "-a" "fc61ee013300204f9e1144b66164a38156b388e5d08dbd24b0360454fd8eb160", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling nix v0.16.0
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking mime_guess v2.0.1
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling wayland-server v0.23.6
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking os_pipe v0.9.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking tree_magic v0.2.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]     Checking calloop v0.4.4
[INFO] [stderr]     Checking wl-clipboard-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting wl-clipboard-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "fc61ee013300204f9e1144b66164a38156b388e5d08dbd24b0360454fd8eb160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc61ee013300204f9e1144b66164a38156b388e5d08dbd24b0360454fd8eb160", kill_on_drop: false }`
[INFO] [stdout] fc61ee013300204f9e1144b66164a38156b388e5d08dbd24b0360454fd8eb160