[INFO] updating cached repository https://github.com/squeed/tcpbench
[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] f27bcf1923db39913ccdc7c5e40abee9db7c037f
[INFO] testing squeed/tcpbench against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsqueed%2Ftcpbench" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/squeed/tcpbench on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/squeed/tcpbench
[INFO] finished tweaking git repo https://github.com/squeed/tcpbench
[INFO] tweaked toml for git repo https://github.com/squeed/tcpbench written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/squeed/tcpbench already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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-2020-06-03" "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] 6b737701f7fb1ba676aaea613d92dd7dfa4efd8dbf8ca1f78b33059563ee9c73
[INFO] running `"docker" "start" "-a" "6b737701f7fb1ba676aaea613d92dd7dfa4efd8dbf8ca1f78b33059563ee9c73"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling streaming-stats v0.1.29
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling histo v0.1.0
[INFO] [stderr]    Compiling tcpbench v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 46 | /         loop {
[INFO] [stderr] 47 | |             let (mut s, _) = self.sock.accept()?;
[INFO] [stderr] 48 | |             s.set_nodelay(true)?;
[INFO] [stderr] 49 | |             loop {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |             }
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 59 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` 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/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:119:21
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 Err(e) => rr.failed_pings += 1,
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t_1`
[INFO] [stderr]    --> src/lib.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let t_1 = PreciseTime::now();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_t_1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut s = TcpStream::connect(self.address.clone())?;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.82s
[INFO] running `"docker" "inspect" "6b737701f7fb1ba676aaea613d92dd7dfa4efd8dbf8ca1f78b33059563ee9c73"`
[INFO] running `"docker" "rm" "-f" "6b737701f7fb1ba676aaea613d92dd7dfa4efd8dbf8ca1f78b33059563ee9c73"`
[INFO] [stdout] 6b737701f7fb1ba676aaea613d92dd7dfa4efd8dbf8ca1f78b33059563ee9c73
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 372fbbaff0b08fcd743dec77353e89113270528c82c70a3f607b472d9b84e403
[INFO] running `"docker" "start" "-a" "372fbbaff0b08fcd743dec77353e89113270528c82c70a3f607b472d9b84e403"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tcpbench v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 46 | /         loop {
[INFO] [stderr] 47 | |             let (mut s, _) = self.sock.accept()?;
[INFO] [stderr] 48 | |             s.set_nodelay(true)?;
[INFO] [stderr] 49 | |             loop {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |             }
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 59 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` 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/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:119:21
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 Err(e) => rr.failed_pings += 1,
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t_1`
[INFO] [stderr]    --> src/lib.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let t_1 = PreciseTime::now();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_t_1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut s = TcpStream::connect(self.address.clone())?;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 46 | /         loop {
[INFO] [stderr] 47 | |             let (mut s, _) = self.sock.accept()?;
[INFO] [stderr] 48 | |             s.set_nodelay(true)?;
[INFO] [stderr] 49 | |             loop {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |             }
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 59 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` 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/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:119:21
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 Err(e) => rr.failed_pings += 1,
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t_1`
[INFO] [stderr]    --> src/lib.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let t_1 = PreciseTime::now();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_t_1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut s = TcpStream::connect(self.address.clone())?;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "372fbbaff0b08fcd743dec77353e89113270528c82c70a3f607b472d9b84e403"`
[INFO] running `"docker" "rm" "-f" "372fbbaff0b08fcd743dec77353e89113270528c82c70a3f607b472d9b84e403"`
[INFO] [stdout] 372fbbaff0b08fcd743dec77353e89113270528c82c70a3f607b472d9b84e403
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d58ea59be20f9e91d8163dc4144ae565440b1f758f7503aa0f7985388f2904d4
[INFO] running `"docker" "start" "-a" "d58ea59be20f9e91d8163dc4144ae565440b1f758f7503aa0f7985388f2904d4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 46 | /         loop {
[INFO] [stderr] 47 | |             let (mut s, _) = self.sock.accept()?;
[INFO] [stderr] 48 | |             s.set_nodelay(true)?;
[INFO] [stderr] 49 | |             loop {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |             }
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 59 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` 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/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:119:21
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 Err(e) => rr.failed_pings += 1,
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t_1`
[INFO] [stderr]    --> src/lib.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let t_1 = PreciseTime::now();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_t_1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut s = TcpStream::connect(self.address.clone())?;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 46 | /         loop {
[INFO] [stderr] 47 | |             let (mut s, _) = self.sock.accept()?;
[INFO] [stderr] 48 | |             s.set_nodelay(true)?;
[INFO] [stderr] 49 | |             loop {
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |             }
[INFO] [stderr] 58 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 59 |           Ok(())
[INFO] [stderr]    |           ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` 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/lib.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     error_chain!{
[INFO] [stderr] 9  | |         foreign_links {
[INFO] [stderr] 10 | |             IO(::std::io::Error);
[INFO] [stderr] 11 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         }
[INFO] [stderr] 22 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:119:21
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 Err(e) => rr.failed_pings += 1,
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t_1`
[INFO] [stderr]    --> src/lib.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let t_1 = PreciseTime::now();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_t_1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut s = TcpStream::connect(self.address.clone())?;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tcpbench-35584d7a5c602ec7
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tcpbench-9552e285a4478cb7
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tcpbench
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d58ea59be20f9e91d8163dc4144ae565440b1f758f7503aa0f7985388f2904d4"`
[INFO] running `"docker" "rm" "-f" "d58ea59be20f9e91d8163dc4144ae565440b1f758f7503aa0f7985388f2904d4"`
[INFO] [stdout] d58ea59be20f9e91d8163dc4144ae565440b1f758f7503aa0f7985388f2904d4