[INFO] cloning repository https://github.com/yubele/nickel_view
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yubele/nickel_view" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyubele%2Fnickel_view", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyubele%2Fnickel_view'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1565093f2c8a19220c6f7bb99a588ed5d61d396b
[INFO] documenting yubele/nickel_view against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyubele%2Fnickel_view" "/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/yubele/nickel_view on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yubele/nickel_view
[INFO] finished tweaking git repo https://github.com/yubele/nickel_view
[INFO] tweaked toml for git repo https://github.com/yubele/nickel_view written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/yubele/nickel_view already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "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] 072b96fe678f513aa838cb2b7f8c5aa35476227ad9e32aec6787978497d34a25
[INFO] running `Command { std: "docker" "start" "-a" "072b96fe678f513aa838cb2b7f8c5aa35476227ad9e32aec6787978497d34a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "072b96fe678f513aa838cb2b7f8c5aa35476227ad9e32aec6787978497d34a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072b96fe678f513aa838cb2b7f8c5aa35476227ad9e32aec6787978497d34a25", kill_on_drop: false }`
[INFO] [stdout] 072b96fe678f513aa838cb2b7f8c5aa35476227ad9e32aec6787978497d34a25
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2060bc472c2544c334d0b0b8218f8fbbdbe9b161d43149ad82874d25eb50dddc
[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" "2060bc472c2544c334d0b0b8218f8fbbdbe9b161d43149ad82874d25eb50dddc", kill_on_drop: false }`
[INFO] [stderr]     Checking httparse v1.2.2
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mustache v0.6.3
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking idna v0.1.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stdout] error: enum is private and its variants cannot be re-exported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mustache-0.6.3/src/parser.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use self::ParserState::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 | enum ParserState { TEXT, OTAG, TAG, CTAG }
[INFO] [stdout]    | ---------------- help: consider making the enum public: `pub enum ParserState`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: enum is private and its variants cannot be re-exported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mustache-0.6.3/src/parser.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub use self::TokenClass::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 | enum TokenClass {
[INFO] [stdout]    | --------------- help: consider making the enum public: `pub enum TokenClass`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mustache`.
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2060bc472c2544c334d0b0b8218f8fbbdbe9b161d43149ad82874d25eb50dddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2060bc472c2544c334d0b0b8218f8fbbdbe9b161d43149ad82874d25eb50dddc", kill_on_drop: false }`
[INFO] [stdout] 2060bc472c2544c334d0b0b8218f8fbbdbe9b161d43149ad82874d25eb50dddc