[INFO] fetching crate avr-mcu 0.3.4...
[INFO] documenting avr-mcu-0.3.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate avr-mcu 0.3.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate avr-mcu 0.3.4 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 avr-mcu 0.3.4
[INFO] finished tweaking crates.io crate avr-mcu 0.3.4
[INFO] tweaked toml for crates.io crate avr-mcu 0.3.4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 json v0.12.4
[INFO] [stderr]   Downloaded target-cpu-fetch v0.1.1
[INFO] [stderr]   Downloaded xmltree v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] d9eeb3f158e31e8fa9180a9873084b155eeb5a98e2b61dbaaf1cc79c718065fd
[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" "d9eeb3f158e31e8fa9180a9873084b155eeb5a98e2b61dbaaf1cc79c718065fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9eeb3f158e31e8fa9180a9873084b155eeb5a98e2b61dbaaf1cc79c718065fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9eeb3f158e31e8fa9180a9873084b155eeb5a98e2b61dbaaf1cc79c718065fd", kill_on_drop: false }`
[INFO] [stdout] d9eeb3f158e31e8fa9180a9873084b155eeb5a98e2b61dbaaf1cc79c718065fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 52b23f8d7146a607a54f9a5a689487bf374377f3c119ea382c333cf44d41f851
[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" "52b23f8d7146a607a54f9a5a689487bf374377f3c119ea382c333cf44d41f851", kill_on_drop: false }`
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking xmltree v0.10.1
[INFO] [stderr]     Checking target-cpu-fetch v0.1.1
[INFO] [stderr]  Documenting avr-mcu v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "52b23f8d7146a607a54f9a5a689487bf374377f3c119ea382c333cf44d41f851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52b23f8d7146a607a54f9a5a689487bf374377f3c119ea382c333cf44d41f851", kill_on_drop: false }`
[INFO] [stdout] 52b23f8d7146a607a54f9a5a689487bf374377f3c119ea382c333cf44d41f851