[INFO] cloning repository https://github.com/birkenfeld/stm_ethernet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/birkenfeld/stm_ethernet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkenfeld%2Fstm_ethernet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkenfeld%2Fstm_ethernet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b008e16ffad920e34f6a718156af08765d6cb995
[INFO] documenting birkenfeld/stm_ethernet against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkenfeld%2Fstm_ethernet" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/birkenfeld/stm_ethernet 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] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/birkenfeld/stm_ethernet
[INFO] finished tweaking git repo https://github.com/birkenfeld/stm_ethernet
[INFO] tweaked toml for git repo https://github.com/birkenfeld/stm_ethernet written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/birkenfeld/stm_ethernet 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/birkenfeld/stm32-eth`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded stm32f4xx-hal v0.8.3
[INFO] [stderr]   Downloaded smoltcp v0.6.0
[INFO] [stderr]   Downloaded managed v0.7.2
[INFO] [stderr]   Downloaded stm32f4 v0.11.0
[INFO] [stderr]   Downloaded panic-itm v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ff89ed1d27cf85b22930e54f1fe415cfa7782417cce5e90e703a86614907e5ac
[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" "ff89ed1d27cf85b22930e54f1fe415cfa7782417cce5e90e703a86614907e5ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff89ed1d27cf85b22930e54f1fe415cfa7782417cce5e90e703a86614907e5ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff89ed1d27cf85b22930e54f1fe415cfa7782417cce5e90e703a86614907e5ac", kill_on_drop: false }`
[INFO] [stdout] ff89ed1d27cf85b22930e54f1fe415cfa7782417cce5e90e703a86614907e5ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 96b7811423023dab8aa2f489d210286debd3da19d9636803cd06c9ac67360dbe
[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" "96b7811423023dab8aa2f489d210286debd3da19d9636803cd06c9ac67360dbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling stm32f4 v0.11.0
[INFO] [stderr]     Checking managed v0.7.2
[INFO] [stderr]     Checking panic-itm v0.4.1
[INFO] [stderr]     Checking smoltcp v0.6.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking cortex-m-rt v0.6.12
[INFO] [stderr]     Checking stm32f4xx-hal v0.8.3
[INFO] [stderr]     Checking stm32-eth v0.2.0 (https://github.com/birkenfeld/stm32-eth#437e2c72)
[INFO] [stderr]     Checking stm_ethernet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting stm_ethernet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "96b7811423023dab8aa2f489d210286debd3da19d9636803cd06c9ac67360dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b7811423023dab8aa2f489d210286debd3da19d9636803cd06c9ac67360dbe", kill_on_drop: false }`
[INFO] [stdout] 96b7811423023dab8aa2f489d210286debd3da19d9636803cd06c9ac67360dbe