[INFO] crate cobalt 0.22.0 is already in cache
[INFO] testing cobalt-0.22.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate cobalt 0.22.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cobalt 0.22.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cobalt 0.22.0
[INFO] finished tweaking crates.io crate cobalt 0.22.0
[INFO] tweaked toml for crates.io crate cobalt 0.22.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 660ba39c8fd265135998487a0e10056d50ab723bee014ecbe7184791a914b3cb
[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" "660ba39c8fd265135998487a0e10056d50ab723bee014ecbe7184791a914b3cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "660ba39c8fd265135998487a0e10056d50ab723bee014ecbe7184791a914b3cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660ba39c8fd265135998487a0e10056d50ab723bee014ecbe7184791a914b3cb", kill_on_drop: false }`
[INFO] [stdout] 660ba39c8fd265135998487a0e10056d50ab723bee014ecbe7184791a914b3cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 63f3862ac2c5692617d21ab114028f6837d7f4cd1871d0132e1a7a671061eda4
[INFO] running `Command { std: "docker" "start" "-a" "63f3862ac2c5692617d21ab114028f6837d7f4cd1871d0132e1a7a671061eda4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cobalt v0.22.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/shared/udp_socket.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let socket = try!(net::UdpSocket::bind(address));
[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/shared/udp_socket.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(socket.set_nonblocking(true));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:198:26
[INFO] [stdout]     |
[INFO] [stdout] 198 |             let socket = try!(S::new(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:203:29
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let peer_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:204:30
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let local_addr = try!(socket.local_addr());
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/server.rs:203:30
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let local_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/server.rs:204:26
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let socket = try!(S::new(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/shared/binary_rate_limiter.rs:165:45
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.last_bad_time = Instant::now();;
[INFO] [stdout]     |                                             ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/shared/connection.rs:129:59
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/shared/connection.rs:129:72
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/shared/connection.rs:425:25
[INFO] [stdout]     |
[INFO] [stdout] 425 |                         (cmp::max(self.last_receive_time - ack.time, tick_delay) - tick_delay)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits/packet_modifier.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl fmt::Debug for PacketModifier {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits/rate_limiter.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl fmt::Debug for RateLimiter {
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "63f3862ac2c5692617d21ab114028f6837d7f4cd1871d0132e1a7a671061eda4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f3862ac2c5692617d21ab114028f6837d7f4cd1871d0132e1a7a671061eda4", kill_on_drop: false }`
[INFO] [stdout] 63f3862ac2c5692617d21ab114028f6837d7f4cd1871d0132e1a7a671061eda4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d8f74a4addce998e54cf2b421461b0afa09a9adf838aecdc108ca485d69cf7
[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" "44d8f74a4addce998e54cf2b421461b0afa09a9adf838aecdc108ca485d69cf7", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/shared/udp_socket.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let socket = try!(net::UdpSocket::bind(address));
[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/shared/udp_socket.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(socket.set_nonblocking(true));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:198:26
[INFO] [stdout]     |
[INFO] [stdout] 198 |             let socket = try!(S::new(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:203:29
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let peer_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:204:30
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let local_addr = try!(socket.local_addr());
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/server.rs:203:30
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let local_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/server.rs:204:26
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let socket = try!(S::new(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/shared/binary_rate_limiter.rs:165:45
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.last_bad_time = Instant::now();;
[INFO] [stdout]     |                                             ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/shared/connection.rs:129:59
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/shared/connection.rs:129:72
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/shared/connection.rs:425:25
[INFO] [stdout]     |
[INFO] [stdout] 425 |                         (cmp::max(self.last_receive_time - ack.time, tick_delay) - tick_delay)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits/packet_modifier.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl fmt::Debug for PacketModifier {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits/rate_limiter.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl fmt::Debug for RateLimiter {
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cobalt v0.22.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> examples/server.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         server.send(true).is_ok();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> examples/client.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         client.send(true).is_ok();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/shared/udp_socket.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let socket = try!(net::UdpSocket::bind(address));
[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/shared/udp_socket.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(socket.set_nonblocking(true));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:198:26
[INFO] [stdout]     |
[INFO] [stdout] 198 |             let socket = try!(S::new(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:203:29
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let peer_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/client.rs:204:30
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let local_addr = try!(socket.local_addr());
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/server.rs:203:30
[INFO] [stdout]     |
[INFO] [stdout] 203 |             let local_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/server.rs:204:26
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let socket = try!(S::new(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/shared/binary_rate_limiter.rs:165:45
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.last_bad_time = Instant::now();;
[INFO] [stdout]     |                                             ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/shared/connection.rs:129:59
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/shared/connection.rs:129:72
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/shared/connection.rs:425:25
[INFO] [stdout]     |
[INFO] [stdout] 425 |                         (cmp::max(self.last_receive_time - ack.time, tick_delay) - tick_delay)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits/packet_modifier.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl fmt::Debug for PacketModifier {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits/rate_limiter.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl fmt::Debug for RateLimiter {
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "44d8f74a4addce998e54cf2b421461b0afa09a9adf838aecdc108ca485d69cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d8f74a4addce998e54cf2b421461b0afa09a9adf838aecdc108ca485d69cf7", kill_on_drop: false }`
[INFO] [stdout] 44d8f74a4addce998e54cf2b421461b0afa09a9adf838aecdc108ca485d69cf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57a93971d148777d90f9865ffdde31949d104458d35338b69225772b7600641f
[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" "57a93971d148777d90f9865ffdde31949d104458d35338b69225772b7600641f", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shared/udp_socket.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let socket = try!(net::UdpSocket::bind(address));
[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/shared/udp_socket.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         try!(socket.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/client.rs:198:26
[INFO] [stderr]     |
[INFO] [stderr] 198 |             let socket = try!(S::new(
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/client.rs:203:29
[INFO] [stderr]     |
[INFO] [stderr] 203 |             let peer_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/client.rs:204:30
[INFO] [stderr]     |
[INFO] [stderr] 204 |             let local_addr = try!(socket.local_addr());
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/server.rs:203:30
[INFO] [stderr]     |
[INFO] [stderr] 203 |             let local_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/server.rs:204:26
[INFO] [stderr]     |
[INFO] [stderr] 204 |             let socket = try!(S::new(
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/shared/binary_rate_limiter.rs:165:45
[INFO] [stderr]     |
[INFO] [stderr] 165 |         self.last_bad_time = Instant::now();;
[INFO] [stderr]     |                                             ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/shared/connection.rs:129:59
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/shared/connection.rs:129:72
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/shared/connection.rs:425:25
[INFO] [stderr]     |
[INFO] [stderr] 425 |                         (cmp::max(self.last_receive_time - ack.time, tick_delay) - tick_delay)
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits/packet_modifier.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl fmt::Debug for PacketModifier {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits/rate_limiter.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl fmt::Debug for RateLimiter {
[INFO] [stderr]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/shared/udp_socket.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let socket = try!(net::UdpSocket::bind(address));
[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/shared/udp_socket.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         try!(socket.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/client.rs:198:26
[INFO] [stderr]     |
[INFO] [stderr] 198 |             let socket = try!(S::new(
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/client.rs:203:29
[INFO] [stderr]     |
[INFO] [stderr] 203 |             let peer_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/client.rs:204:30
[INFO] [stderr]     |
[INFO] [stderr] 204 |             let local_addr = try!(socket.local_addr());
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/server.rs:203:30
[INFO] [stderr]     |
[INFO] [stderr] 203 |             let local_addr = try!(addr.to_socket_addrs()).nth(0).unwrap();
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/server.rs:204:26
[INFO] [stderr]     |
[INFO] [stderr] 204 |             let socket = try!(S::new(
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/shared/binary_rate_limiter.rs:165:45
[INFO] [stderr]     |
[INFO] [stderr] 165 |         self.last_bad_time = Instant::now();;
[INFO] [stderr]     |                                             ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/shared/connection.rs:129:59
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stderr]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/shared/connection.rs:129:72
[INFO] [stderr]     |
[INFO] [stderr] 129 | pub type ConnectionMap = HashMap<ConnectionID, Connection<RateLimiter, PacketModifier>>;
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/shared/connection.rs:425:25
[INFO] [stderr]     |
[INFO] [stderr] 425 |                         (cmp::max(self.last_receive_time - ack.time, tick_delay) - tick_delay)
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits/packet_modifier.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl fmt::Debug for PacketModifier {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PacketModifier`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits/rate_limiter.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl fmt::Debug for RateLimiter {
[INFO] [stderr]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn RateLimiter`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> examples/client.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         client.send(true).is_ok();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> examples/server.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         server.send(true).is_ok();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cobalt-be17ae9c3565e164
[INFO] [stdout] 
[INFO] [stdout] running 67 tests
[INFO] [stdout] test shared::binary_rate_limiter::test::test_reset ... ok
[INFO] [stdout] test test::client::test_client_configuration ... ok
[INFO] [stdout] test test::client::test_client_disconnected ... ok
[INFO] [stdout] test test::client::test_client_internals ... ok
[INFO] [stdout] test test::client::test_client_without_connection ... ok
[INFO] [stdout] test test::client::test_client_connect_reset_close ... ok
[INFO] [stdout] test test::client::test_client_close_by_remote ... ok
[INFO] [stdout] test test::client::test_client_connection_ignore_non_peer ... ok
[INFO] [stdout] test test::client::test_client_flush_without_delay ... ok
[INFO] [stdout] test test::client::test_client_send ... ok
[INFO] [stdout] test test::client::test_client_reset_events ... ok
[INFO] [stdout] test test::client::test_client_receive ... ok
[INFO] [stdout] test test::connection::test_packet_modification ... ok
[INFO] [stdout] test test::connection::test_receive_invalid_packets ... ok
[INFO] [stdout] test test::connection::test_receive_packet_ack_overflow ... ok
[INFO] [stdout] test test::connection::test_receive_packet ... ok
[INFO] [stdout] test test::connection::test_reset ... ok
[INFO] [stdout] test test::connection::test_id_from_packet ... ok
[INFO] [stdout] test test::connection::test_debug_fmt ... ok
[INFO] [stdout] test test::connection::test_close_remote ... ok
[INFO] [stdout] test test::connection::test_create ... ok
[INFO] [stdout] test test::connection::test_send_and_receive_messages ... ok
[INFO] [stdout] test test::connection::test_send_and_receive_packet ... ok
[INFO] [stdout] test test::connection::test_send_sequence_wrap_around ... ok
[INFO] [stdout] test test::message_queue::test_debug_fmt ... ok
[INFO] [stdout] test test::client::test_client_connection_success ... ok
[INFO] [stdout] test test::connection::test_set_config ... ok
[INFO] [stdout] test test::message_queue::test_in_order_duplicates ... ok
[INFO] [stdout] test test::message_queue::test_out_of_order_duplicates ... ok
[INFO] [stdout] test test::message_queue::test_packet_lost_write ... ok
[INFO] [stdout] test test::message_queue::test_receive_empty ... ok
[INFO] [stdout] test test::message_queue::test_receive_invalid ... ok
[INFO] [stdout] test test::connection::test_packet_loss ... ok
[INFO] [stdout] test test::message_queue::test_receive_read_long ... ok
[INFO] [stdout] test test::message_queue::test_receive_read ... ok
[INFO] [stdout] test test::message_queue::test_receive_read_out_of_order ... ok
[INFO] [stdout] test test::message_queue::test_reset ... ok
[INFO] [stdout] test test::message_queue::test_send_write ... ok
[INFO] [stdout] test test::message_queue::test_receive_ordered_decoding_wrap_around ... ok
[INFO] [stdout] test test::message_queue::test_receive_ordered_encoding_wrap_around ... ok
[INFO] [stdout] test test::client::test_client_close_by_local ... ok
[INFO] [stdout] test test::server::test_server_configuration ... ok
[INFO] [stdout] test test::message_queue::test_send_write_long ... ok
[INFO] [stdout] test test::server::test_server_disconnected ... ok
[INFO] [stdout] test test::server::test_server_flow_without_connections ... ok
[INFO] [stdout] test test::server::test_server_connection ... ok
[INFO] [stdout] test test::server::test_server_flush_without_delay ... ok
[INFO] [stdout] test test::client::test_client_connection_failure ... ok
[INFO] [stdout] test test::server::test_server_internals ... ok
[INFO] [stdout] test test::server::test_server_connection_address_remap ... ok
[INFO] [stdout] test test::server::test_server_receive ... ok
[INFO] [stdout] test test::server::test_server_listen_shutdown ... ok
[INFO] [stdout] test test::server::test_server_reset_events ... ok
[INFO] [stdout] test test::server::test_server_send ... ok
[INFO] [stdout] test test::client::test_client_flush_auto_delay ... ok
[INFO] [stdout] test test::connection::test_close_local ... ok
[INFO] [stdout] test test::client::test_client_connection_loss_and_reconnect ... ok
[INFO] [stdout] test test::server::test_server_flush_auto_delay ... ok
[INFO] [stdout] test test::server::test_server_connection_close ... ok
[INFO] [stdout] test test::server::test_server_connection_loss ... ok
[INFO] [stdout] test test::connection::test_rtt ... ok
[INFO] [stdout] test test::connection::test_rtt_tick_correction ... ok
[INFO] [stdout] test test::connection::test_connecting_failed ... ok
[INFO] [stdout] test test::client::test_client_auto_delay_with_load ... ok
[INFO] [stdout] test test::connection::test_send_failure ... ok
[INFO] [stdout] test test::server::test_server_auto_delay_with_load ... ok
[INFO] [stderr]    Doc-tests cobalt
[INFO] [stdout] test shared::binary_rate_limiter::test::test_modes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 67 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/shared/connection.rs - shared::connection::Connection<R, M>::id_from_packet (line 257) ... ok
[INFO] [stdout] test src/shared/connection.rs - shared::connection::Connection<R, M>::new (line 203) ... ok
[INFO] [stdout] test src/client.rs - client::Client (line 67) ... ok
[INFO] [stdout] test src/server.rs - server::Server (line 64) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "57a93971d148777d90f9865ffdde31949d104458d35338b69225772b7600641f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a93971d148777d90f9865ffdde31949d104458d35338b69225772b7600641f", kill_on_drop: false }`
[INFO] [stdout] 57a93971d148777d90f9865ffdde31949d104458d35338b69225772b7600641f