[INFO] fetching crate sendgrid 0.9.0...
[INFO] checking sendgrid-0.9.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate sendgrid 0.9.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate sendgrid 0.9.0 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sendgrid 0.9.0
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate sendgrid 0.9.0
[INFO] tweaked toml for crates.io crate sendgrid 0.9.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate sendgrid 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=allow" "-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" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 05f83e914fee07858ac9f509807af84c7a966e31b6f3027fb1ececc3c30322f5
[INFO] running `"docker" "start" "-a" "05f83e914fee07858ac9f509807af84c7a966e31b6f3027fb1ececc3c30322f5"`
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling serde v1.0.86
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking string v0.1.3
[INFO] [stderr]    Compiling encoding_rs v0.8.15
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking rand_jitter v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking tokio-timer v0.2.9
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking tokio-io v0.1.11
[INFO] [stderr]     Checking http v0.1.15
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking h2 v0.1.16
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.8
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.11
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.86
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio v0.1.15
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking hyper v0.12.23
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.9
[INFO] [stderr]     Checking sendgrid v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: the trait bound `std::result::Result<(), ()>: futures::Future` is not satisfied
[INFO] [stderr]   --> examples/v3_async.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |     tokio::run(code);
[INFO] [stderr]    |                ^^^^ the trait `futures::Future` is not implemented for `std::result::Result<(), ()>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-0.1.15/src/runtime/threadpool/mod.rs:99:10
[INFO] [stderr]    |
[INFO] [stderr] 99 | where F: Future<Item = (), Error = ()> + Send + 'static,
[INFO] [stderr]    |          ----------------------------- required by this bound in `tokio::runtime::threadpool::run`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `sendgrid`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "05f83e914fee07858ac9f509807af84c7a966e31b6f3027fb1ececc3c30322f5"`
[INFO] running `"docker" "rm" "-f" "05f83e914fee07858ac9f509807af84c7a966e31b6f3027fb1ececc3c30322f5"`
[INFO] [stdout] 05f83e914fee07858ac9f509807af84c7a966e31b6f3027fb1ececc3c30322f5