[INFO] crate natsclient 0.0.1 is already in cache
[INFO] extracting crate natsclient 0.0.1 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/natsclient/0.0.1
[INFO] extracting crate natsclient 0.0.1 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/natsclient/0.0.1
[INFO] validating manifest of natsclient-0.0.1 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of natsclient-0.0.1 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing natsclient-0.0.1
[INFO] finished frobbing natsclient-0.0.1
[INFO] frobbed toml for natsclient-0.0.1 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/natsclient/0.0.1/Cargo.toml
[INFO] started frobbing natsclient-0.0.1
[INFO] finished frobbing natsclient-0.0.1
[INFO] frobbed toml for natsclient-0.0.1 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/natsclient/0.0.1/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nats-types v0.1.7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking natsclient-0.0.1 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-2/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/natsclient/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e2cc5cccf7f37f67ba762df1a4118aac3db266445d5392a3ffe5ef9ce2036dc6
[INFO] running `"docker" "start" "-a" "e2cc5cccf7f37f67ba762df1a4118aac3db266445d5392a3ffe5ef9ce2036dc6"`
[INFO] [stderr]     Checking nats-types v0.1.7
[INFO] [stderr]     Checking subtle-encoding v0.3.4
[INFO] [stderr]     Checking signatory v0.11.3
[INFO] [stderr]     Checking signatory-dalek v0.11.0
[INFO] [stderr]     Checking nkeys v0.0.4
[INFO] [stderr]     Checking natsclient v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::mpsc::Sender`
[INFO] [stderr]  --> src/protocol.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::mpsc::Sender;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `generate_connect_command`
[INFO] [stderr]  --> src/tcp.rs:2:23
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::protocol::{generate_connect_command, ProtocolHandler, ProtocolMessage};
[INFO] [stderr]   |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crossbeam::sync::WaitGroup`
[INFO] [stderr]  --> src/tcp.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crossbeam::sync::WaitGroup;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc::Sender`
[INFO] [stderr]  --> src/protocol.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::mpsc::Sender;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `generate_connect_command`
[INFO] [stderr]  --> src/tcp.rs:2:23
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::protocol::{generate_connect_command, ProtocolHandler, ProtocolMessage};
[INFO] [stderr]   |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crossbeam::sync::WaitGroup`
[INFO] [stderr]  --> src/tcp.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crossbeam::sync::WaitGroup;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `payload`
[INFO] [stderr]    --> src/lib.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         payload: &[u8],
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_payload`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]    --> src/lib.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         timeout: std::time::Duration,
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_timeout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `server_info`
[INFO] [stderr]    --> src/protocol.rs:116:35
[INFO] [stderr]     |
[INFO] [stderr] 116 |             ProtocolMessage::Info(server_info) => {
[INFO] [stderr]     |                                   ^^^^^^^^^^^ help: consider prefixing with an underscore: `_server_info`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/protocol.rs:125:17
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 self.delivery_sender.send(msg.clone());
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/tcp.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     s.send(true);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `payload`
[INFO] [stderr]    --> src/lib.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         payload: &[u8],
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_payload`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]    --> src/lib.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         timeout: std::time::Duration,
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_timeout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `server_info`
[INFO] [stderr]    --> src/protocol.rs:116:35
[INFO] [stderr]     |
[INFO] [stderr] 116 |             ProtocolMessage::Info(server_info) => {
[INFO] [stderr]     |                                   ^^^^^^^^^^^ help: consider prefixing with an underscore: `_server_info`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/protocol.rs:125:17
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 self.delivery_sender.send(msg.clone());
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/tcp.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     s.send(true);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[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 7.18s
[INFO] running `"docker" "inspect" "e2cc5cccf7f37f67ba762df1a4118aac3db266445d5392a3ffe5ef9ce2036dc6"`
[INFO] running `"docker" "rm" "-f" "e2cc5cccf7f37f67ba762df1a4118aac3db266445d5392a3ffe5ef9ce2036dc6"`
[INFO] [stdout] e2cc5cccf7f37f67ba762df1a4118aac3db266445d5392a3ffe5ef9ce2036dc6