[INFO] updating cached repository https://github.com/eminence/prom_weather_server
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c0b3125f0b1dde9230d01139617f6d50fc47b9d3
[INFO] testing eminence/prom_weather_server against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feminence%2Fprom_weather_server" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eminence/prom_weather_server on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/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 `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4fca4e3bf1d296d850a57b3edf6e598d699a89a4cdefdcf3f1492a3deaacd714
[INFO] running `"docker" "start" "-a" "4fca4e3bf1d296d850a57b3edf6e598d699a89a4cdefdcf3f1492a3deaacd714"`
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]    Compiling libc v0.2.22
[INFO] [stderr]    Compiling openssl v0.9.11
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling libflate v0.1.5
[INFO] [stderr]    Compiling hyper v0.10.9
[INFO] [stderr] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libflate-0.1.5/src/gzip.rs:452:66
[INFO] [stderr]     |
[INFO] [stderr] 452 |         try!(writer.write_u16::<LittleEndian>(self.data.len() as u16()));
[INFO] [stderr]     |                                                                  ^^^^^ only `Fn` traits may use parentheses
[INFO] [stderr] 
[INFO] [stderr]    Compiling idna v0.1.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0214`.
[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 `"docker" "inspect" "4fca4e3bf1d296d850a57b3edf6e598d699a89a4cdefdcf3f1492a3deaacd714"`
[INFO] running `"docker" "rm" "-f" "4fca4e3bf1d296d850a57b3edf6e598d699a89a4cdefdcf3f1492a3deaacd714"`
[INFO] [stdout] 4fca4e3bf1d296d850a57b3edf6e598d699a89a4cdefdcf3f1492a3deaacd714