[INFO] cloning repository https://github.com/simmons/tokio-aio-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simmons/tokio-aio-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimmons%2Ftokio-aio-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimmons%2Ftokio-aio-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e652b5c62960c38f5d3e1ca0ed7c258d92bfa1b
[INFO] documenting simmons/tokio-aio-examples against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimmons%2Ftokio-aio-examples" "/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/simmons/tokio-aio-examples on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simmons/tokio-aio-examples
[INFO] finished tweaking git repo https://github.com/simmons/tokio-aio-examples
[INFO] tweaked toml for git repo https://github.com/simmons/tokio-aio-examples written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/simmons/tokio-aio-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "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] bf8c0cdbafba925a923589731e83345098077c087f25605769f4af7dd7d9776d
[INFO] running `Command { std: "docker" "start" "-a" "bf8c0cdbafba925a923589731e83345098077c087f25605769f4af7dd7d9776d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf8c0cdbafba925a923589731e83345098077c087f25605769f4af7dd7d9776d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8c0cdbafba925a923589731e83345098077c087f25605769f4af7dd7d9776d", kill_on_drop: false }`
[INFO] [stdout] bf8c0cdbafba925a923589731e83345098077c087f25605769f4af7dd7d9776d
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f949473243798c3af819b7d2ed3a0126d0f93748d91eb4adb0380f1763eb8a77
[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" "f949473243798c3af819b7d2ed3a0126d0f93748d91eb4adb0380f1763eb8a77", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.11
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking tokio-core v0.1.11
[INFO] [stderr]     Checking tokio-aio-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting tokio-aio-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `tokio-aio-examples`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name echo_mio_level src/bin/echo-mio-level.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-55154188e7f80348.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-abb167663fb37115.rmeta --extern tokio_aio_examples=/opt/rustwide/target/debug/deps/libtokio_aio_examples-2e93a6775ccadf9b.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-1a2045e0cf106279.rmeta --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f949473243798c3af819b7d2ed3a0126d0f93748d91eb4adb0380f1763eb8a77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f949473243798c3af819b7d2ed3a0126d0f93748d91eb4adb0380f1763eb8a77", kill_on_drop: false }`
[INFO] [stdout] f949473243798c3af819b7d2ed3a0126d0f93748d91eb4adb0380f1763eb8a77