[INFO] fetching crate i3-workspace-brightness 1.0.1...
[INFO] documenting i3-workspace-brightness-1.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate i3-workspace-brightness 1.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate i3-workspace-brightness 1.0.1 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 i3-workspace-brightness 1.0.1
[INFO] finished tweaking crates.io crate i3-workspace-brightness 1.0.1
[INFO] tweaked toml for crates.io crate i3-workspace-brightness 1.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate i3-workspace-brightness 1.0.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 0bf730e93b648d9f2b72db1a20260911ad86a8e9ff864389526eb7e3911ab36e
[INFO] running `Command { std: "docker" "start" "-a" "0bf730e93b648d9f2b72db1a20260911ad86a8e9ff864389526eb7e3911ab36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bf730e93b648d9f2b72db1a20260911ad86a8e9ff864389526eb7e3911ab36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bf730e93b648d9f2b72db1a20260911ad86a8e9ff864389526eb7e3911ab36e", kill_on_drop: false }`
[INFO] [stdout] 0bf730e93b648d9f2b72db1a20260911ad86a8e9ff864389526eb7e3911ab36e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 2e0b33a468cd633f5dba2d5cb387632b4bc0eeb4c732e1dd05a2090486152513
[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" "2e0b33a468cd633f5dba2d5cb387632b4bc0eeb4c732e1dd05a2090486152513", kill_on_drop: false }`
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking i3ipc v0.10.1
[INFO] [stderr]  Documenting i3-workspace-brightness v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.79s
[INFO] running `Command { std: "docker" "inspect" "2e0b33a468cd633f5dba2d5cb387632b4bc0eeb4c732e1dd05a2090486152513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0b33a468cd633f5dba2d5cb387632b4bc0eeb4c732e1dd05a2090486152513", kill_on_drop: false }`
[INFO] [stdout] 2e0b33a468cd633f5dba2d5cb387632b4bc0eeb4c732e1dd05a2090486152513