[INFO] cloning repository https://github.com/adolfohw/flatten-dir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adolfohw/flatten-dir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadolfohw%2Fflatten-dir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadolfohw%2Fflatten-dir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22f564b982e68ddf26ca003165bfbf7fd9f1e90c
[INFO] documenting adolfohw/flatten-dir 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%2Fadolfohw%2Fflatten-dir" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adolfohw/flatten-dir 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/adolfohw/flatten-dir
[INFO] finished tweaking git repo https://github.com/adolfohw/flatten-dir
[INFO] tweaked toml for git repo https://github.com/adolfohw/flatten-dir written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/adolfohw/flatten-dir 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 620e623a74a30e4ec961cf7d4a6b7f39f11c9ea8f515b7b504c5a1f487995fac
[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" "620e623a74a30e4ec961cf7d4a6b7f39f11c9ea8f515b7b504c5a1f487995fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "620e623a74a30e4ec961cf7d4a6b7f39f11c9ea8f515b7b504c5a1f487995fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620e623a74a30e4ec961cf7d4a6b7f39f11c9ea8f515b7b504c5a1f487995fac", kill_on_drop: false }`
[INFO] [stdout] 620e623a74a30e4ec961cf7d4a6b7f39f11c9ea8f515b7b504c5a1f487995fac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 851c61ea9b0e9be671e8c974ec2e54404999b099878e7305ebb774f530bd2313
[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" "851c61ea9b0e9be671e8c974ec2e54404999b099878e7305ebb774f530bd2313", kill_on_drop: false }`
[INFO] [stderr]  Documenting flatten_dir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown attribute `norun`. Did you mean `no_run`?
[INFO] [stdout]   --> src/lib.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / /// Flattens a directory recursively, moving all nested files into `path`.
[INFO] [stdout] 6  | | ///
[INFO] [stdout] 7  | | /// # Errors
[INFO] [stdout] 8  | | ///
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | | /// flatten("./music_lib_from_2001").unwrap();
[INFO] [stdout] 16 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_codeblock_attributes)]` on by default
[INFO] [stdout]    = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "851c61ea9b0e9be671e8c974ec2e54404999b099878e7305ebb774f530bd2313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851c61ea9b0e9be671e8c974ec2e54404999b099878e7305ebb774f530bd2313", kill_on_drop: false }`
[INFO] [stdout] 851c61ea9b0e9be671e8c974ec2e54404999b099878e7305ebb774f530bd2313