[INFO] cloning repository https://github.com/rustache/rustache-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustache/rustache-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustache%2Frustache-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustache%2Frustache-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09149325cc8f96aae045d503b1f5681a63bf4fb7
[INFO] documenting rustache/rustache-cli 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%2Frustache%2Frustache-cli" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustache/rustache-cli 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/rustache/rustache-cli
[INFO] finished tweaking git repo https://github.com/rustache/rustache-cli
[INFO] tweaked toml for git repo https://github.com/rustache/rustache-cli written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rustache/rustache-cli 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]     Updating git repository `https://github.com/seanchen1991/rust-memstream.git`
[INFO] [stderr]     Updating git repository `https://github.com/rustache/rustache.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/seanchen1991/rust-memstream.git`
[INFO] [stderr]     Updating git repository `https://github.com/rustache/rustache.git`
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] e7b8c11dec9d92aa0aa1f602e87ffcc842f6b2cce22cc5c7cc72cd0418ee3ab6
[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" "e7b8c11dec9d92aa0aa1f602e87ffcc842f6b2cce22cc5c7cc72cd0418ee3ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b8c11dec9d92aa0aa1f602e87ffcc842f6b2cce22cc5c7cc72cd0418ee3ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b8c11dec9d92aa0aa1f602e87ffcc842f6b2cce22cc5c7cc72cd0418ee3ab6", kill_on_drop: false }`
[INFO] [stdout] e7b8c11dec9d92aa0aa1f602e87ffcc842f6b2cce22cc5c7cc72cd0418ee3ab6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6994549c0fce73845132b8fa118f5f26d6a7e9de3a75fad528860c986af7a32e
[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" "6994549c0fce73845132b8fa118f5f26d6a7e9de3a75fad528860c986af7a32e", kill_on_drop: false }`
[INFO] [stderr]     Checking memstream v0.1.0 (https://github.com/seanchen1991/rust-memstream.git#6945cb0b)
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking dbghelp-sys v0.2.0
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]     Checking error-chain v0.5.0
[INFO] [stderr]     Checking rustache v0.1.0 (https://github.com/rustache/rustache.git#0ba62ca9)
[INFO] [stderr]  Documenting rustache-cli v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:4:14
[INFO] [stdout]     |
[INFO] [stdout] 4   | use std::io::stdio::stdout;
[INFO] [stdout]     |              ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rustache-cli`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name rustache_cli src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern memstream=/opt/rustwide/target/debug/deps/libmemstream-b40bb54787132cfa.rmeta --extern rustache=/opt/rustwide/target/debug/deps/librustache-7f7be925f395ba9b.rmeta --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "6994549c0fce73845132b8fa118f5f26d6a7e9de3a75fad528860c986af7a32e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6994549c0fce73845132b8fa118f5f26d6a7e9de3a75fad528860c986af7a32e", kill_on_drop: false }`
[INFO] [stdout] 6994549c0fce73845132b8fa118f5f26d6a7e9de3a75fad528860c986af7a32e