[INFO] updating cached repository tnpxu/event-horizon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tnpxu/event-horizon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tnpxu/event-horizon" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/tnpxu/event-horizon"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/tnpxu/event-horizon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tnpxu/event-horizon" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/tnpxu/event-horizon"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/tnpxu/event-horizon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f9657885114e474e976054b0f0f9fee54001873
[INFO] sha for GitHub repo tnpxu/event-horizon: 7f9657885114e474e976054b0f0f9fee54001873
[INFO] validating manifest of tnpxu/event-horizon on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tnpxu/event-horizon on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tnpxu/event-horizon
[INFO] finished frobbing tnpxu/event-horizon
[INFO] frobbed toml for tnpxu/event-horizon written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/tnpxu/event-horizon/Cargo.toml
[INFO] started frobbing tnpxu/event-horizon
[INFO] finished frobbing tnpxu/event-horizon
[INFO] frobbed toml for tnpxu/event-horizon written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/tnpxu/event-horizon/Cargo.toml
[INFO] crate tnpxu/event-horizon has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tnpxu/event-horizon against try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-7/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/tnpxu/event-horizon:/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" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 08671b5cf880e165588d6172ffc0d4c898b9c51e50ed9b65f7d6d34a5f6c637e
[INFO] running `"docker" "start" "-a" "08671b5cf880e165588d6172ffc0d4c898b9c51e50ed9b65f7d6d34a5f6c637e"`
[INFO] [stderr]     Checking lazycell v1.1.0
[INFO] [stderr]     Checking timely_logging v0.7.0
[INFO] [stderr]     Checking timely_bytes v0.7.0
[INFO] [stderr]     Checking abomonation v0.7.0
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking openssl v0.10.12
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]     Checking libflate v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.3.1
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[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking timely_communication v0.7.0
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking csv v1.0.1
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking native-tls v0.2.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking timely v0.7.0
[INFO] [stderr]     Checking tungstenite v0.6.0
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking differential-dataflow v0.7.0
[INFO] [stderr]     Checking hyper-tls v0.1.4
[INFO] [stderr]     Checking reqwest v0.8.8
[INFO] [stderr]     Checking event-horizon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `serde_json::from_str`
[INFO] [stderr]  --> src/websockets.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde_json::from_str;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::from_str`
[INFO] [stderr]  --> src/websockets.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde_json::from_str;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / error_chain! {
[INFO] [stderr] 7  | |     types {
[INFO] [stderr] 8  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 9  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / error_chain! {
[INFO] [stderr] 7  | |     types {
[INFO] [stderr] 8  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 9  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[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)
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/websockets.rs:50:20
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 Ok(msg) => {
[INFO] [stderr]    |                    ^^^ help: consider using `_msg` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/websockets.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 Err(e) => {
[INFO] [stderr]    |                     ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/websockets.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 Err(e) => {
[INFO] [stderr]    |                     ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `EXCHANGE_URL` should have a snake case name such as `exchange_url`
[INFO] [stderr]   --> src/websockets.rs:28:31
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn connect(&mut self, EXCHANGE_URL: &str) -> Result<()> {
[INFO] [stderr]    |                               ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / error_chain! {
[INFO] [stderr] 7  | |     types {
[INFO] [stderr] 8  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 9  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / error_chain! {
[INFO] [stderr] 7  | |     types {
[INFO] [stderr] 8  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 9  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/websockets.rs:50:20
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 Ok(msg) => {
[INFO] [stderr]    |                    ^^^ help: consider using `_msg` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/websockets.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 Err(e) => {
[INFO] [stderr]    |                     ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/websockets.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 Err(e) => {
[INFO] [stderr]    |                     ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `EXCHANGE_URL` should have a snake case name such as `exchange_url`
[INFO] [stderr]   --> src/websockets.rs:28:31
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn connect(&mut self, EXCHANGE_URL: &str) -> Result<()> {
[INFO] [stderr]    |                               ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:86:28
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 if let Err(e) = okex_socket.fetch_message() {
[INFO] [stderr]    |                            ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:99:28
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 if let Err(e) = binance_socket.fetch_message() {
[INFO] [stderr]    |                            ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `time`
[INFO] [stderr]    --> src/main.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |             let time = current_time.parse::<i32>().unwrap();
[INFO] [stderr]     |                 ^^^^ help: consider using `_time` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `time_exchange2`
[INFO] [stderr]    --> src/main.rs:144:21
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 let time_exchange2 = String::from("");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^ help: consider using `_time_exchange2` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `time_exchange2_datetime_format`
[INFO] [stderr]    --> src/main.rs:145:21
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 let time_exchange2_datetime_format = String::from("");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `_time_exchange2_datetime_format` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     wtr.flush();
[INFO] [stderr]    |                     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:86:28
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 if let Err(e) = okex_socket.fetch_message() {
[INFO] [stderr]    |                            ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:99:28
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 if let Err(e) = binance_socket.fetch_message() {
[INFO] [stderr]    |                            ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `time`
[INFO] [stderr]    --> src/main.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |             let time = current_time.parse::<i32>().unwrap();
[INFO] [stderr]     |                 ^^^^ help: consider using `_time` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `time_exchange2`
[INFO] [stderr]    --> src/main.rs:144:21
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 let time_exchange2 = String::from("");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^ help: consider using `_time_exchange2` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `time_exchange2_datetime_format`
[INFO] [stderr]    --> src/main.rs:145:21
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 let time_exchange2_datetime_format = String::from("");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `_time_exchange2_datetime_format` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     wtr.flush();
[INFO] [stderr]    |                     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.15s
[INFO] running `"docker" "inspect" "08671b5cf880e165588d6172ffc0d4c898b9c51e50ed9b65f7d6d34a5f6c637e"`
[INFO] running `"docker" "rm" "-f" "08671b5cf880e165588d6172ffc0d4c898b9c51e50ed9b65f7d6d34a5f6c637e"`
[INFO] [stdout] 08671b5cf880e165588d6172ffc0d4c898b9c51e50ed9b65f7d6d34a5f6c637e