[INFO] cloning repository https://github.com/eminence/prom_weather_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eminence/prom_weather_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fprom_weather_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fprom_weather_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0b3125f0b1dde9230d01139617f6d50fc47b9d3
[INFO] documenting eminence/prom_weather_server 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%2Feminence%2Fprom_weather_server" "/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/eminence/prom_weather_server 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/eminence/prom_weather_server
[INFO] finished tweaking git repo https://github.com/eminence/prom_weather_server
[INFO] tweaked toml for git repo https://github.com/eminence/prom_weather_server written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/eminence/prom_weather_server 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+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] cb31ddeacd33d14d8ed63b46b902a001104fa7afb5165b266cd60010cc5ba339
[INFO] running `Command { std: "docker" "start" "-a" "cb31ddeacd33d14d8ed63b46b902a001104fa7afb5165b266cd60010cc5ba339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb31ddeacd33d14d8ed63b46b902a001104fa7afb5165b266cd60010cc5ba339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb31ddeacd33d14d8ed63b46b902a001104fa7afb5165b266cd60010cc5ba339", kill_on_drop: false }`
[INFO] [stdout] cb31ddeacd33d14d8ed63b46b902a001104fa7afb5165b266cd60010cc5ba339
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6efb74cba486986477f64f2f0a6084dd7954b865edef2f65051cc602a68eb325
[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" "6efb74cba486986477f64f2f0a6084dd7954b865edef2f65051cc602a68eb325", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling openssl-sys v0.9.11
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking idna v0.1.1
[INFO] [stderr]    Compiling hyper v0.10.9
[INFO] [stderr]     Checking libflate v0.1.5
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libflate-0.1.5/src/gzip.rs:452:66
[INFO] [stdout]     |
[INFO] [stdout] 452 |         try!(writer.write_u16::<LittleEndian>(self.data.len() as u16()));
[INFO] [stdout]     |                                                                  ^^^^^ only `Fn` traits may use parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0214`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libflate`.
[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" "6efb74cba486986477f64f2f0a6084dd7954b865edef2f65051cc602a68eb325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6efb74cba486986477f64f2f0a6084dd7954b865edef2f65051cc602a68eb325", kill_on_drop: false }`
[INFO] [stdout] 6efb74cba486986477f64f2f0a6084dd7954b865edef2f65051cc602a68eb325