[INFO] cloning repository https://github.com/slava-sh/rust-bundler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slava-sh/rust-bundler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslava-sh%2Frust-bundler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslava-sh%2Frust-bundler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f1ac0e50347cdb2d6aa4a6eafc4b998ce84948b
[INFO] documenting slava-sh/rust-bundler against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslava-sh%2Frust-bundler" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slava-sh/rust-bundler 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 git repo https://github.com/slava-sh/rust-bundler
[INFO] finished tweaking git repo https://github.com/slava-sh/rust-bundler
[INFO] tweaked toml for git repo https://github.com/slava-sh/rust-bundler written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/slava-sh/rust-bundler 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive_internals v0.23.1
[INFO] [stderr]   Downloaded assert_cli v0.5.4
[INFO] [stderr]   Downloaded serde_derive v1.0.42
[INFO] [stderr]   Downloaded syntex_errors v0.59.1
[INFO] [stderr]   Downloaded extprim v1.5.1
[INFO] [stderr]   Downloaded regex-syntax v0.5.5
[INFO] [stderr]   Downloaded difference v1.0.0
[INFO] [stderr]   Downloaded cargo_metadata v0.5.4
[INFO] [stderr]   Downloaded colored v1.6.0
[INFO] [stderr]   Downloaded strings v0.1.1
[INFO] [stderr]   Downloaded rustfmt v0.10.0
[INFO] [stderr]   Downloaded environment v0.1.1
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded serde v1.0.42
[INFO] [stderr]   Downloaded syntex_pos v0.59.1
[INFO] [stderr]   Downloaded syntex_syntax v0.59.1
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82a1d066c34a696dbd13298d675017cd6702233722cba40ae1967048ba761d50
[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" "82a1d066c34a696dbd13298d675017cd6702233722cba40ae1967048ba761d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82a1d066c34a696dbd13298d675017cd6702233722cba40ae1967048ba761d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82a1d066c34a696dbd13298d675017cd6702233722cba40ae1967048ba761d50", kill_on_drop: false }`
[INFO] [stdout] 82a1d066c34a696dbd13298d675017cd6702233722cba40ae1967048ba761d50
[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" "+beta-2020-08-29" "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] 825083ea08a8427b4bad2d8a3c408a3c927d2fb235ac55017eb9723af398b3a7
[INFO] running `Command { std: "docker" "start" "-a" "825083ea08a8427b4bad2d8a3c408a3c927d2fb235ac55017eb9723af398b3a7", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling rustfmt v0.10.0
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking quote v0.5.2
[INFO] [stderr]     Checking strings v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking syn v0.13.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.42
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking serde v1.0.42
[INFO] [stderr]     Checking syntex_pos v0.59.1
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking syntex_errors v0.59.1
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling extprim v1.5.1
[INFO] [stderr]     Checking cargo_metadata v0.5.4
[INFO] [stderr]     Checking syntex_syntax v0.59.1
[INFO] [stderr]     Checking bundler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting bundler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "825083ea08a8427b4bad2d8a3c408a3c927d2fb235ac55017eb9723af398b3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "825083ea08a8427b4bad2d8a3c408a3c927d2fb235ac55017eb9723af398b3a7", kill_on_drop: false }`
[INFO] [stdout] 825083ea08a8427b4bad2d8a3c408a3c927d2fb235ac55017eb9723af398b3a7