[INFO] cloning repository https://github.com/mthadley/rclac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mthadley/rclac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthadley%2Frclac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthadley%2Frclac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55cb23dabd6261c2d0751b7921e496d1472a0117
[INFO] documenting mthadley/rclac 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%2Fmthadley%2Frclac" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mthadley/rclac 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/mthadley/rclac
[INFO] finished tweaking git repo https://github.com/mthadley/rclac
[INFO] tweaked toml for git repo https://github.com/mthadley/rclac written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mthadley/rclac 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/mthadley/rustyline`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 6861d2b0b0780f3514b2d267e8d46eb55bd5d518bd76b207aeebba5f67dbb977
[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" "6861d2b0b0780f3514b2d267e8d46eb55bd5d518bd76b207aeebba5f67dbb977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6861d2b0b0780f3514b2d267e8d46eb55bd5d518bd76b207aeebba5f67dbb977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6861d2b0b0780f3514b2d267e8d46eb55bd5d518bd76b207aeebba5f67dbb977", kill_on_drop: false }`
[INFO] [stdout] 6861d2b0b0780f3514b2d267e8d46eb55bd5d518bd76b207aeebba5f67dbb977
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5cb0e72e29b606824d04fd90afbccfe5003baa8aeaa3d62d2477661adbb547e4
[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" "5cb0e72e29b606824d04fd90afbccfe5003baa8aeaa3d62d2477661adbb547e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking rustyline v1.0.0 (https://github.com/mthadley/rustyline?branch=hints#3030e33e)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/rustyline-a6bb4f7dedbf15e5/3030e33/src/lib.rs:1185:49
[INFO] [stdout]      |
[INFO] [stdout] 1185 |                 self.editor.add_history_entry(l.as_ref()); // TODO Validate
[INFO] [stdout]      |                                               --^^^^^^--
[INFO] [stdout]      |                                               | |
[INFO] [stdout]      |                                               | cannot infer type for struct `std::string::String`
[INFO] [stdout]      |                                               this method call resolves to `&T`
[INFO] [stdout]      |
[INFO] [stdout]      = note: cannot satisfy `std::string::String: std::convert::AsRef<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rustyline-a6bb4f7dedbf15e5/3030e33/src/history.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 |             self.add(try!(line).as_ref()); // TODO truncate to MAX_LINE
[INFO] [stdout]     |                      -----------^^^^^^--
[INFO] [stdout]     |                      |          |
[INFO] [stdout]     |                      |          cannot infer type for struct `std::string::String`
[INFO] [stdout]     |                      this method call resolves to `&T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `std::string::String: std::convert::AsRef<_>`
[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 E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustyline`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5cb0e72e29b606824d04fd90afbccfe5003baa8aeaa3d62d2477661adbb547e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cb0e72e29b606824d04fd90afbccfe5003baa8aeaa3d62d2477661adbb547e4", kill_on_drop: false }`
[INFO] [stdout] 5cb0e72e29b606824d04fd90afbccfe5003baa8aeaa3d62d2477661adbb547e4