[INFO] cloning repository https://github.com/tech6hutch/lang-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tech6hutch/lang-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftech6hutch%2Flang-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftech6hutch%2Flang-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b876793959149a653e4614da96686ca7ea121203
[INFO] documenting tech6hutch/lang-compiler 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%2Ftech6hutch%2Flang-compiler" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tech6hutch/lang-compiler 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/tech6hutch/lang-compiler
[INFO] finished tweaking git repo https://github.com/tech6hutch/lang-compiler
[INFO] tweaked toml for git repo https://github.com/tech6hutch/lang-compiler written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/tech6hutch/lang-compiler 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 unicode_names2 v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e758ccf6e1ee5ac031251bb17ccaff6e3ee37ba87e6a2b537d4fe8c7df178bcf
[INFO] running `Command { std: "docker" "start" "-a" "e758ccf6e1ee5ac031251bb17ccaff6e3ee37ba87e6a2b537d4fe8c7df178bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e758ccf6e1ee5ac031251bb17ccaff6e3ee37ba87e6a2b537d4fe8c7df178bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e758ccf6e1ee5ac031251bb17ccaff6e3ee37ba87e6a2b537d4fe8c7df178bcf", kill_on_drop: false }`
[INFO] [stdout] e758ccf6e1ee5ac031251bb17ccaff6e3ee37ba87e6a2b537d4fe8c7df178bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 53c73072d0179472a4a8ff1e91a16fd45365bbbcd042b23b20b942f932d1ceab
[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" "53c73072d0179472a4a8ff1e91a16fd45365bbbcd042b23b20b942f932d1ceab", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode_names2 v0.4.0
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]  Documenting lang-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.00s
[INFO] running `Command { std: "docker" "inspect" "53c73072d0179472a4a8ff1e91a16fd45365bbbcd042b23b20b942f932d1ceab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53c73072d0179472a4a8ff1e91a16fd45365bbbcd042b23b20b942f932d1ceab", kill_on_drop: false }`
[INFO] [stdout] 53c73072d0179472a4a8ff1e91a16fd45365bbbcd042b23b20b942f932d1ceab