[INFO] fetching crate exar-client 0.1.0...
[INFO] testing exar-client-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate exar-client 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate exar-client 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exar-client 0.1.0
[INFO] removed path dependency exar from crates.io crate exar-client 0.1.0
[INFO] removed path dependency exar-net from crates.io crate exar-client 0.1.0
[INFO] removed path dependency exar-testkit from crates.io crate exar-client 0.1.0
[INFO] finished tweaking crates.io crate exar-client 0.1.0
[INFO] tweaked toml for crates.io crate exar-client 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ba359e2199d276df6c8a0c6a40c35e229016d8c9c42189f7a86858fc4374612
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1ba359e2199d276df6c8a0c6a40c35e229016d8c9c42189f7a86858fc4374612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ba359e2199d276df6c8a0c6a40c35e229016d8c9c42189f7a86858fc4374612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba359e2199d276df6c8a0c6a40c35e229016d8c9c42189f7a86858fc4374612", kill_on_drop: false }`
[INFO] [stdout] 1ba359e2199d276df6c8a0c6a40c35e229016d8c9c42189f7a86858fc4374612
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 120df209d49ac42402f3353b5007cb64dca4c4cc2713f029ed8888df0bb0cc01
[INFO] running `Command { std: "docker" "start" "-a" "120df209d49ac42402f3353b5007cb64dca4c4cc2713f029ed8888df0bb0cc01", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling indexed-line-reader v0.2.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling exar v0.1.0
[INFO] [stderr]    Compiling exar-net v0.1.0
[INFO] [stderr]    Compiling exar-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:34
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let mut stream = try!(TcpMessageStream::new(stream));
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 try!(stream.send_message(connection_message));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.stream.send_message(TcpMessage::Publish(event)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "120df209d49ac42402f3353b5007cb64dca4c4cc2713f029ed8888df0bb0cc01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "120df209d49ac42402f3353b5007cb64dca4c4cc2713f029ed8888df0bb0cc01", kill_on_drop: false }`
[INFO] [stdout] 120df209d49ac42402f3353b5007cb64dca4c4cc2713f029ed8888df0bb0cc01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ae85a9f6723b1064cfff037f407e008803b463646e648ed036c53578cd5c796
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7ae85a9f6723b1064cfff037f407e008803b463646e648ed036c53578cd5c796", kill_on_drop: false }`
[INFO] [stderr]    Compiling exar-testkit v0.1.0
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:34
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let mut stream = try!(TcpMessageStream::new(stream));
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 try!(stream.send_message(connection_message));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.stream.send_message(TcpMessage::Publish(event)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling exar-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:84:34
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let mut stream = try!(TcpMessageStream::new(stream));
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 try!(stream.send_message(connection_message));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.stream.send_message(TcpMessage::Publish(event)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | #[cfg(test)] #[macro_use]
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "7ae85a9f6723b1064cfff037f407e008803b463646e648ed036c53578cd5c796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae85a9f6723b1064cfff037f407e008803b463646e648ed036c53578cd5c796", kill_on_drop: false }`
[INFO] [stdout] 7ae85a9f6723b1064cfff037f407e008803b463646e648ed036c53578cd5c796
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7dfe334d59bf38bf9567e8630a5203055becc59d3fb1051a4ce6a21e56875509
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7dfe334d59bf38bf9567e8630a5203055becc59d3fb1051a4ce6a21e56875509", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:84:34
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let mut stream = try!(TcpMessageStream::new(stream));
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:88:17
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 try!(stream.send_message(connection_message));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         try!(self.stream.send_message(TcpMessage::Publish(event)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:84:34
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let mut stream = try!(TcpMessageStream::new(stream));
[INFO] [stderr]    |                                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:88:17
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 try!(stream.send_message(connection_message));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         try!(self.stream.send_message(TcpMessage::Publish(event)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:58:14
[INFO] [stderr]    |
[INFO] [stderr] 58 | #[cfg(test)] #[macro_use]
[INFO] [stderr]    |              ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/exar_client-aa5091454b0bdbab
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_connect ... ok
[INFO] [stdout] test tests::test_connect_failure ... ok
[INFO] [stdout] test tests::test_connect_with_authentication ... ok
[INFO] [stdout] test tests::test_publish ... ok
[INFO] [stdout] test tests::test_subscribe_failure ... ok
[INFO] [stdout] test tests::test_publish_failure ... ok
[INFO] [stdout] test tests::test_subscribe ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exar-client
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7dfe334d59bf38bf9567e8630a5203055becc59d3fb1051a4ce6a21e56875509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dfe334d59bf38bf9567e8630a5203055becc59d3fb1051a4ce6a21e56875509", kill_on_drop: false }`
[INFO] [stdout] 7dfe334d59bf38bf9567e8630a5203055becc59d3fb1051a4ce6a21e56875509