[INFO] cloning repository https://github.com/mas-yo/ragtime-old
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mas-yo/ragtime-old" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmas-yo%2Fragtime-old", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmas-yo%2Fragtime-old'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f30656bb8dfb8c8f7015abd8aa5462a09a907b70
[INFO] documenting mas-yo/ragtime-old 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%2Fmas-yo%2Fragtime-old" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mas-yo/ragtime-old 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/mas-yo/ragtime-old
[INFO] removed workspace from git repo https://github.com/mas-yo/ragtime-old
[INFO] finished tweaking git repo https://github.com/mas-yo/ragtime-old
[INFO] tweaked toml for git repo https://github.com/mas-yo/ragtime-old written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mas-yo/ragtime-old 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] aea62a0326320a9d0af9e718fa167704f1d0a7a8dd8b59257377a9a089d0ff8d
[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" "aea62a0326320a9d0af9e718fa167704f1d0a7a8dd8b59257377a9a089d0ff8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aea62a0326320a9d0af9e718fa167704f1d0a7a8dd8b59257377a9a089d0ff8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea62a0326320a9d0af9e718fa167704f1d0a7a8dd8b59257377a9a089d0ff8d", kill_on_drop: false }`
[INFO] [stdout] aea62a0326320a9d0af9e718fa167704f1d0a7a8dd8b59257377a9a089d0ff8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9f1d65f55487eb4322313427949c2bbfc6bbd006a490ed05cb310ba4d34b2c4a
[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" "9f1d65f55487eb4322313427949c2bbfc6bbd006a490ed05cb310ba4d34b2c4a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]  Documenting ragtime v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "9f1d65f55487eb4322313427949c2bbfc6bbd006a490ed05cb310ba4d34b2c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1d65f55487eb4322313427949c2bbfc6bbd006a490ed05cb310ba4d34b2c4a", kill_on_drop: false }`
[INFO] [stdout] 9f1d65f55487eb4322313427949c2bbfc6bbd006a490ed05cb310ba4d34b2c4a