[INFO] fetching crate cargo-concat 0.4.2...
[INFO] documenting cargo-concat-0.4.2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate cargo-concat 0.4.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cargo-concat 0.4.2 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 cargo-concat 0.4.2
[INFO] finished tweaking crates.io crate cargo-concat 0.4.2
[INFO] tweaked toml for crates.io crate cargo-concat 0.4.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate cargo-concat 0.4.2 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] 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" "+1.47.0" "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] 20cd3a7fe38ab2e7ba84c487c9fac2afcc71959df3cdadc1095841eaf19e8e2e
[INFO] running `Command { std: "docker" "start" "-a" "20cd3a7fe38ab2e7ba84c487c9fac2afcc71959df3cdadc1095841eaf19e8e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20cd3a7fe38ab2e7ba84c487c9fac2afcc71959df3cdadc1095841eaf19e8e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20cd3a7fe38ab2e7ba84c487c9fac2afcc71959df3cdadc1095841eaf19e8e2e", kill_on_drop: false }`
[INFO] [stdout] 20cd3a7fe38ab2e7ba84c487c9fac2afcc71959df3cdadc1095841eaf19e8e2e
[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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24d930c8b6e3cad3bd5e35e9f873ebe26bf7d98ef75228a23443df3f63495338
[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" "24d930c8b6e3cad3bd5e35e9f873ebe26bf7d98ef75228a23443df3f63495338", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking proc-macro2 v1.0.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]     Checking syn v1.0.41
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking cargo_metadata v0.11.2
[INFO] [stderr]  Documenting cargo-concat v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.69s
[INFO] running `Command { std: "docker" "inspect" "24d930c8b6e3cad3bd5e35e9f873ebe26bf7d98ef75228a23443df3f63495338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d930c8b6e3cad3bd5e35e9f873ebe26bf7d98ef75228a23443df3f63495338", kill_on_drop: false }`
[INFO] [stdout] 24d930c8b6e3cad3bd5e35e9f873ebe26bf7d98ef75228a23443df3f63495338
