[INFO] fetching crate erfs-gen 0.1.2...
[INFO] documenting erfs-gen-0.1.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate erfs-gen 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate erfs-gen 0.1.2 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 crates.io crate erfs-gen 0.1.2
[INFO] finished tweaking crates.io crate erfs-gen 0.1.2
[INFO] tweaked toml for crates.io crate erfs-gen 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate erfs-gen 0.1.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.44
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] [stderr]   Downloaded hermit-abi v0.1.7
[INFO] [stderr]   Downloaded deflate v0.8.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded regex v1.3.4
[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] fb6d8c6a474a967836a21d502075930821f8cbf16c83a1e588838ec5e7f8b088
[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" "fb6d8c6a474a967836a21d502075930821f8cbf16c83a1e588838ec5e7f8b088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb6d8c6a474a967836a21d502075930821f8cbf16c83a1e588838ec5e7f8b088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6d8c6a474a967836a21d502075930821f8cbf16c83a1e588838ec5e7f8b088", kill_on_drop: false }`
[INFO] [stdout] fb6d8c6a474a967836a21d502075930821f8cbf16c83a1e588838ec5e7f8b088
[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] 9c5eb5a8f23560cfd1fdcd002032409922a701a4f98e746265e15cd5f5442e1c
[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" "9c5eb5a8f23560cfd1fdcd002032409922a701a4f98e746265e15cd5f5442e1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking deflate v0.8.3
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling backtrace v0.3.44
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling erfs-gen v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: src/erfs_generator.cpp: In function 'int erfs_generate(const char*, const char*, int, const char*)':
[INFO] [stderr] warning: src/erfs_generator.cpp:126:9: warning: variable 'result' set but not used [-Wunused-but-set-variable]
[INFO] [stderr] warning:   126 |     int result = 0;
[INFO] [stderr] warning:       |         ^~~~~~
[INFO] [stderr]  Documenting erfs-gen v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.53s
[INFO] running `Command { std: "docker" "inspect" "9c5eb5a8f23560cfd1fdcd002032409922a701a4f98e746265e15cd5f5442e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5eb5a8f23560cfd1fdcd002032409922a701a4f98e746265e15cd5f5442e1c", kill_on_drop: false }`
[INFO] [stdout] 9c5eb5a8f23560cfd1fdcd002032409922a701a4f98e746265e15cd5f5442e1c