Dec 18 06:03:48.810 INFO checking OpenSTFoundation/rust-mosaic against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:03:48.810 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/OpenSTFoundation/rust-mosaic:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:03:49.307 INFO [stdout] 1adcb0faadf5748a45b1d6fc198bc4afe98328127172c03e6870bb165ae44541
Dec 18 06:03:49.309 INFO running `"docker" "start" "-a" "1adcb0faadf5748a45b1d6fc198bc4afe98328127172c03e6870bb165ae44541"`
Dec 18 06:03:52.235 INFO [stderr]     Checking rpassword v2.0.0
Dec 18 06:03:52.244 INFO [stderr]     Checking want v0.0.4
Dec 18 06:03:52.244 INFO [stderr]     Checking simple_logger v0.5.0
Dec 18 06:03:52.260 INFO [stderr]     Checking fixed-hash v0.2.5
Dec 18 06:03:52.261 INFO [stderr]     Checking ethereum-types-serialize v0.2.1
Dec 18 06:03:52.280 INFO [stderr]     Checking tokio-threadpool v0.1.8
Dec 18 06:03:52.280 INFO [stderr]     Checking jsonrpc-core v8.0.1
Dec 18 06:03:54.330 INFO [stderr]     Checking ethbloom v0.5.0
Dec 18 06:03:56.037 INFO [stderr]     Checking ethereum-types v0.4.0
Dec 18 06:03:57.030 INFO [stderr]     Checking tokio-fs v0.1.4
Dec 18 06:03:58.341 INFO [stderr]     Checking tokio v0.1.11
Dec 18 06:03:59.958 INFO [stderr]     Checking tokio-core v0.1.17
Dec 18 06:04:01.854 INFO [stderr]     Checking ethabi v6.1.0
Dec 18 06:04:01.862 INFO [stderr]     Checking rlp v0.3.0
Dec 18 06:04:03.098 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 18 06:04:03.100 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 18 06:04:03.112 INFO [stderr]     Checking tokio-uds v0.1.7
Dec 18 06:04:06.359 INFO [stderr]     Checking websocket v0.20.4
Dec 18 06:04:09.786 INFO [stderr]     Checking hyper v0.11.27
Dec 18 06:04:15.568 INFO [stderr]     Checking hyper-tls v0.1.4
Dec 18 06:04:16.710 INFO [stderr]     Checking web3 v0.4.0
Dec 18 06:04:23.761 INFO [stderr]     Checking mosaic v0.1.0 (/opt/crater/workdir)
Dec 18 06:04:27.538 INFO [stderr] warning: type alias is never used: `Signature`
Dec 18 06:04:27.539 INFO [stderr]   --> src/ethereum/types/mod.rs:24:1
Dec 18 06:04:27.539 INFO [stderr]    |
Dec 18 06:04:27.539 INFO [stderr] 24 | pub type Signature = H520;
Dec 18 06:04:27.539 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.539 INFO [stderr]    |
Dec 18 06:04:27.539 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:04:27.539 INFO [stderr] 
Dec 18 06:04:27.539 INFO [stderr] warning: method is never used: `get_accounts`
Dec 18 06:04:27.539 INFO [stderr]    --> src/ethereum/mod.rs:165:5
Dec 18 06:04:27.539 INFO [stderr]     |
Dec 18 06:04:27.539 INFO [stderr] 165 |     pub fn get_accounts(&self) -> impl Future<Item = Vec<Address>, Error = Error> {
Dec 18 06:04:27.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.539 INFO [stderr] 
Dec 18 06:04:27.539 INFO [stderr] warning: method is never used: `sign`
Dec 18 06:04:27.539 INFO [stderr]    --> src/ethereum/mod.rs:184:5
Dec 18 06:04:27.544 INFO [stderr]     |
Dec 18 06:04:27.544 INFO [stderr] 184 |     pub fn sign(&self, data: Bytes) -> impl Future<Item = Signature, Error = Error> {
Dec 18 06:04:27.544 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.544 INFO [stderr] 
Dec 18 06:04:27.544 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:04:27.544 INFO [stderr]   --> src/ethereum/types/block.rs:48:9
Dec 18 06:04:27.544 INFO [stderr]    |
Dec 18 06:04:27.544 INFO [stderr] 48 |         write!(fmt, "Block ({:x})", self.hash);
Dec 18 06:04:27.544 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.544 INFO [stderr]    |
Dec 18 06:04:27.544 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:04:27.544 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:04:27.544 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 06:04:27.544 INFO [stderr] 
Dec 18 06:04:27.900 INFO [stderr] warning: type alias is never used: `Signature`
Dec 18 06:04:27.901 INFO [stderr]   --> src/ethereum/types/mod.rs:24:1
Dec 18 06:04:27.901 INFO [stderr]    |
Dec 18 06:04:27.901 INFO [stderr] 24 | pub type Signature = H520;
Dec 18 06:04:27.901 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.902 INFO [stderr]    |
Dec 18 06:04:27.902 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:04:27.902 INFO [stderr] 
Dec 18 06:04:27.903 INFO [stderr] warning: method is never used: `get_accounts`
Dec 18 06:04:27.903 INFO [stderr]    --> src/ethereum/mod.rs:165:5
Dec 18 06:04:27.903 INFO [stderr]     |
Dec 18 06:04:27.904 INFO [stderr] 165 |     pub fn get_accounts(&self) -> impl Future<Item = Vec<Address>, Error = Error> {
Dec 18 06:04:27.904 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.904 INFO [stderr] 
Dec 18 06:04:27.905 INFO [stderr] warning: method is never used: `sign`
Dec 18 06:04:27.905 INFO [stderr]    --> src/ethereum/mod.rs:184:5
Dec 18 06:04:27.905 INFO [stderr]     |
Dec 18 06:04:27.905 INFO [stderr] 184 |     pub fn sign(&self, data: Bytes) -> impl Future<Item = Signature, Error = Error> {
Dec 18 06:04:27.906 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.906 INFO [stderr] 
Dec 18 06:04:27.916 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:04:27.916 INFO [stderr]   --> src/ethereum/types/block.rs:48:9
Dec 18 06:04:27.917 INFO [stderr]    |
Dec 18 06:04:27.917 INFO [stderr] 48 |         write!(fmt, "Block ({:x})", self.hash);
Dec 18 06:04:27.917 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:04:27.918 INFO [stderr]    |
Dec 18 06:04:27.918 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:04:27.918 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:04:27.919 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 06:04:27.919 INFO [stderr] 
Dec 18 06:04:30.712 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.07s
Dec 18 06:04:32.081 INFO running `"docker" "inspect" "1adcb0faadf5748a45b1d6fc198bc4afe98328127172c03e6870bb165ae44541"`
Dec 18 06:04:32.306 INFO running `"docker" "rm" "-f" "1adcb0faadf5748a45b1d6fc198bc4afe98328127172c03e6870bb165ae44541"`
Dec 18 06:04:32.652 INFO [stdout] 1adcb0faadf5748a45b1d6fc198bc4afe98328127172c03e6870bb165ae44541