[INFO] fetching crate cat-rs 0.1.0-alpha.0...
[INFO] documenting cat-rs-0.1.0-alpha.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate cat-rs 0.1.0-alpha.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate cat-rs 0.1.0-alpha.0 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 cat-rs 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate cat-rs 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate cat-rs 0.1.0-alpha.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate cat-rs 0.1.0-alpha.0 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] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 189e50f10c216dd3dd39636b41fbaa59f4bfaa4e5a97c08f5331f8edc9998627
[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" "189e50f10c216dd3dd39636b41fbaa59f4bfaa4e5a97c08f5331f8edc9998627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "189e50f10c216dd3dd39636b41fbaa59f4bfaa4e5a97c08f5331f8edc9998627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189e50f10c216dd3dd39636b41fbaa59f4bfaa4e5a97c08f5331f8edc9998627", kill_on_drop: false }`
[INFO] [stdout] 189e50f10c216dd3dd39636b41fbaa59f4bfaa4e5a97c08f5331f8edc9998627
[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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a690167a2fc023852b9cc715c0d8a958715e7858a529d4ecd7a2ad3c46136f9
[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" "8a690167a2fc023852b9cc715c0d8a958715e7858a529d4ecd7a2ad3c46136f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]     Checking num_cpus v1.11.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling cat-rs v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]  Documenting cat-rs v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "8a690167a2fc023852b9cc715c0d8a958715e7858a529d4ecd7a2ad3c46136f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a690167a2fc023852b9cc715c0d8a958715e7858a529d4ecd7a2ad3c46136f9", kill_on_drop: false }`
[INFO] [stdout] 8a690167a2fc023852b9cc715c0d8a958715e7858a529d4ecd7a2ad3c46136f9
