[INFO] cloning repository https://github.com/flatcar-linux/update-ssh-keys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flatcar-linux/update-ssh-keys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fupdate-ssh-keys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fupdate-ssh-keys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34fe71f1f902ea78c2a4050ab7088a6a17309440
[INFO] [stderr] warning: refname 'HEAD' is ambiguous.
[INFO] documenting flatcar-linux/update-ssh-keys 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%2Fflatcar-linux%2Fupdate-ssh-keys" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flatcar-linux/update-ssh-keys 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 git repo https://github.com/flatcar-linux/update-ssh-keys
[INFO] finished tweaking git repo https://github.com/flatcar-linux/update-ssh-keys
[INFO] tweaked toml for git repo https://github.com/flatcar-linux/update-ssh-keys written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/flatcar-linux/update-ssh-keys 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]  Downloading crates ...
[INFO] [stderr]   Downloaded users v0.8.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.53
[INFO] [stderr]   Downloaded openssh-keys v0.4.1
[INFO] [stderr]   Downloaded libc v0.2.51
[INFO] [stderr]   Downloaded error-chain v0.12.0
[INFO] [stderr]   Downloaded fs2 v0.4.3
[INFO] [stderr]   Downloaded sha2 v0.8.0
[INFO] [stderr]   Downloaded block-buffer v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 28c52decddf8467c5fa06646d7051ce264a4538fefd0a7f970addb839476ab3a
[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" "28c52decddf8467c5fa06646d7051ce264a4538fefd0a7f970addb839476ab3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28c52decddf8467c5fa06646d7051ce264a4538fefd0a7f970addb839476ab3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c52decddf8467c5fa06646d7051ce264a4538fefd0a7f970addb839476ab3a", kill_on_drop: false }`
[INFO] [stdout] 28c52decddf8467c5fa06646d7051ce264a4538fefd0a7f970addb839476ab3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] de60d5cabe39249d8cead3e200cd08b07deee04b5b61c7f3f4a641c96decd7b4
[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" "de60d5cabe39249d8cead3e200cd08b07deee04b5b61c7f3f4a641c96decd7b4", kill_on_drop: false }`
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]     Checking users v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.2
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking openssh-keys v0.4.1
[INFO] [stderr]  Documenting update-ssh-keys v0.4.2-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "de60d5cabe39249d8cead3e200cd08b07deee04b5b61c7f3f4a641c96decd7b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de60d5cabe39249d8cead3e200cd08b07deee04b5b61c7f3f4a641c96decd7b4", kill_on_drop: false }`
[INFO] [stdout] de60d5cabe39249d8cead3e200cd08b07deee04b5b61c7f3f4a641c96decd7b4