[INFO] cloning repository https://github.com/cesare/rust-nickelexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cesare/rust-nickelexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Frust-nickelexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Frust-nickelexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e6f0e5ddfae3ff0fe852aa3c975cfbb606413fa
[INFO] documenting cesare/rust-nickelexp 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%2Fcesare%2Frust-nickelexp" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cesare/rust-nickelexp 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/cesare/rust-nickelexp
[INFO] finished tweaking git repo https://github.com/cesare/rust-nickelexp
[INFO] tweaked toml for git repo https://github.com/cesare/rust-nickelexp written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/cesare/rust-nickelexp 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 version_check v0.1.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.18
[INFO] [stderr]   Downloaded url v1.4.1
[INFO] [stderr]   Downloaded nickel v0.9.0
[INFO] [stderr]   Downloaded mustache v0.6.3
[INFO] [stderr]   Downloaded num_cpus v1.5.1
[INFO] [stderr]   Downloaded idna v0.1.2
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] [stderr]   Downloaded groupable v0.2.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ab0c589ed5f3421ff80225fe7fcdb3f6676be0d3c4a4b359c8e0f99a659540b9
[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" "ab0c589ed5f3421ff80225fe7fcdb3f6676be0d3c4a4b359c8e0f99a659540b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab0c589ed5f3421ff80225fe7fcdb3f6676be0d3c4a4b359c8e0f99a659540b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0c589ed5f3421ff80225fe7fcdb3f6676be0d3c4a4b359c8e0f99a659540b9", kill_on_drop: false }`
[INFO] [stdout] ab0c589ed5f3421ff80225fe7fcdb3f6676be0d3c4a4b359c8e0f99a659540b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b45b62911c99a9988c55e8cd7740c4b9436caa687a485fdaa608869b8a30122
[INFO] running `Command { std: "docker" "start" "-a" "7b45b62911c99a9988c55e8cd7740c4b9436caa687a485fdaa608869b8a30122", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking matches v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.4
[INFO] [stderr]    Compiling version_check v0.1.2
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking unicode-bidi v0.3.3
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking mustache v0.6.3
[INFO] [stderr]    Compiling unicase v1.4.2
[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]     Checking time v0.1.37
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num_cpus v1.5.1
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mustache`.
[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" "7b45b62911c99a9988c55e8cd7740c4b9436caa687a485fdaa608869b8a30122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b45b62911c99a9988c55e8cd7740c4b9436caa687a485fdaa608869b8a30122", kill_on_drop: false }`
[INFO] [stdout] 7b45b62911c99a9988c55e8cd7740c4b9436caa687a485fdaa608869b8a30122