[INFO] fetching crate alt-failure 0.1.5...
[INFO] documenting alt-failure-0.1.5 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate alt-failure 0.1.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate alt-failure 0.1.5 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alt-failure 0.1.5
[INFO] finished tweaking crates.io crate alt-failure 0.1.5
[INFO] tweaked toml for crates.io crate alt-failure 0.1.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate alt-failure 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f4448a7bd6e9a15b89c4d09f67dad34dfbdb65224110edbdf5094e4ee48ddf9
[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" "9f4448a7bd6e9a15b89c4d09f67dad34dfbdb65224110edbdf5094e4ee48ddf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f4448a7bd6e9a15b89c4d09f67dad34dfbdb65224110edbdf5094e4ee48ddf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f4448a7bd6e9a15b89c4d09f67dad34dfbdb65224110edbdf5094e4ee48ddf9", kill_on_drop: false }`
[INFO] [stdout] 9f4448a7bd6e9a15b89c4d09f67dad34dfbdb65224110edbdf5094e4ee48ddf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] cf97e1a961fdfcafc65aa833f1a9c03ef0c0b50d2105e2471c08c468528b5fc3
[INFO] running `Command { std: "docker" "start" "-a" "cf97e1a961fdfcafc65aa833f1a9c03ef0c0b50d2105e2471c08c468528b5fc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]  Documenting alt-failure v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.95s
[INFO] running `Command { std: "docker" "inspect" "cf97e1a961fdfcafc65aa833f1a9c03ef0c0b50d2105e2471c08c468528b5fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf97e1a961fdfcafc65aa833f1a9c03ef0c0b50d2105e2471c08c468528b5fc3", kill_on_drop: false }`
[INFO] [stdout] cf97e1a961fdfcafc65aa833f1a9c03ef0c0b50d2105e2471c08c468528b5fc3
