[INFO] cloning repository https://github.com/woodruffw/llvm-passgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/woodruffw/llvm-passgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodruffw%2Fllvm-passgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodruffw%2Fllvm-passgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40c08403c077b3b802082fc91570f0540b146a76
[INFO] documenting woodruffw/llvm-passgen 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%2Fwoodruffw%2Fllvm-passgen" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/woodruffw/llvm-passgen 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/woodruffw/llvm-passgen
[INFO] finished tweaking git repo https://github.com/woodruffw/llvm-passgen
[INFO] tweaked toml for git repo https://github.com/woodruffw/llvm-passgen written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/woodruffw/llvm-passgen 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 rust-embed-impl v5.5.1
[INFO] [stderr]   Downloaded handlebars v3.4.0
[INFO] [stderr]   Downloaded quick-error v2.0.0
[INFO] [stderr]   Downloaded pest v2.1.2
[INFO] [stderr]   Downloaded ucd-trie v0.1.2
[INFO] [stderr]   Downloaded pest_meta v2.1.2
[INFO] [stderr]   Downloaded pest_generator v2.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b21d23d2be3dec633fc7a9ba7ab31a72f48e3ec93f7f3c48b8dc5a6788a4c50e
[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" "b21d23d2be3dec633fc7a9ba7ab31a72f48e3ec93f7f3c48b8dc5a6788a4c50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b21d23d2be3dec633fc7a9ba7ab31a72f48e3ec93f7f3c48b8dc5a6788a4c50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21d23d2be3dec633fc7a9ba7ab31a72f48e3ec93f7f3c48b8dc5a6788a4c50e", kill_on_drop: false }`
[INFO] [stdout] b21d23d2be3dec633fc7a9ba7ab31a72f48e3ec93f7f3c48b8dc5a6788a4c50e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] a3980a948557c9b8d43116c3376edeab347dca2c2e75c065d68550743d2459cd
[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" "a3980a948557c9b8d43116c3376edeab347dca2c2e75c065d68550743d2459cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]     Checking pest v2.1.2
[INFO] [stderr]     Checking rust-embed-utils v5.0.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling rust-embed-impl v5.5.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking rust-embed v5.6.0
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking handlebars v3.4.0
[INFO] [stderr]  Documenting llvm-passgen v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.81s
[INFO] running `Command { std: "docker" "inspect" "a3980a948557c9b8d43116c3376edeab347dca2c2e75c065d68550743d2459cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3980a948557c9b8d43116c3376edeab347dca2c2e75c065d68550743d2459cd", kill_on_drop: false }`
[INFO] [stdout] a3980a948557c9b8d43116c3376edeab347dca2c2e75c065d68550743d2459cd