[INFO] cloning repository https://github.com/fitzgen/intrusive_splay_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fitzgen/intrusive_splay_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fintrusive_splay_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fintrusive_splay_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d35f00f1d7a922d83b5a58fb4e837fddc5574f4a
[INFO] documenting fitzgen/intrusive_splay_tree 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%2Ffitzgen%2Fintrusive_splay_tree" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fitzgen/intrusive_splay_tree 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/fitzgen/intrusive_splay_tree
[INFO] finished tweaking git repo https://github.com/fitzgen/intrusive_splay_tree
[INFO] tweaked toml for git repo https://github.com/fitzgen/intrusive_splay_tree written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/fitzgen/intrusive_splay_tree 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 aho-corasick v0.6.4
[INFO] [stderr]   Downloaded quickcheck v0.6.2
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] [stderr]   Downloaded atty v0.2.8
[INFO] [stderr]   Downloaded regex v0.2.10
[INFO] [stderr]   Downloaded regex-syntax v0.5.3
[INFO] [stderr]   Downloaded libc v0.2.40
[INFO] [stderr]   Downloaded env_logger v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d8ed54d4b13c7f976def989abfec437150bb6d44d7ea793b009f6546d728d406
[INFO] running `Command { std: "docker" "start" "-a" "d8ed54d4b13c7f976def989abfec437150bb6d44d7ea793b009f6546d728d406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8ed54d4b13c7f976def989abfec437150bb6d44d7ea793b009f6546d728d406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8ed54d4b13c7f976def989abfec437150bb6d44d7ea793b009f6546d728d406", kill_on_drop: false }`
[INFO] [stdout] d8ed54d4b13c7f976def989abfec437150bb6d44d7ea793b009f6546d728d406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 57e95a87edfa76f90e8c1bed8d1675ef4f5e6ccf5b3a2e98eececd55cfd66da0
[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" "57e95a87edfa76f90e8c1bed8d1675ef4f5e6ccf5b3a2e98eececd55cfd66da0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting intrusive_splay_tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "57e95a87edfa76f90e8c1bed8d1675ef4f5e6ccf5b3a2e98eececd55cfd66da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e95a87edfa76f90e8c1bed8d1675ef4f5e6ccf5b3a2e98eececd55cfd66da0", kill_on_drop: false }`
[INFO] [stdout] 57e95a87edfa76f90e8c1bed8d1675ef4f5e6ccf5b3a2e98eececd55cfd66da0