[INFO] fetching crate ping 0.2.0...
[INFO] testing ping-0.2.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate ping 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ping 0.2.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ping 0.2.0
[INFO] finished tweaking crates.io crate ping 0.2.0
[INFO] tweaked toml for crates.io crate ping 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56aa1645bd6b867605a1bb9e32ee7dc8ddb4226b6db0528d4f16c3c9967a9874
[INFO] running `Command { std: "docker" "start" "-a" "56aa1645bd6b867605a1bb9e32ee7dc8ddb4226b6db0528d4f16c3c9967a9874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56aa1645bd6b867605a1bb9e32ee7dc8ddb4226b6db0528d4f16c3c9967a9874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56aa1645bd6b867605a1bb9e32ee7dc8ddb4226b6db0528d4f16c3c9967a9874", kill_on_drop: false }`
[INFO] [stdout] 56aa1645bd6b867605a1bb9e32ee7dc8ddb4226b6db0528d4f16c3c9967a9874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45aa43dfc626f0a6c52f49abd24e6fb382e08215e0a4d3277216ca41292a1c2a
[INFO] running `Command { std: "docker" "start" "-a" "45aa43dfc626f0a6c52f49abd24e6fb382e08215e0a4d3277216ca41292a1c2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling ping v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(Socket::new(Domain::ipv4(), Type::raw(), Some(Protocol::icmpv4())))
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(Socket::new(Domain::ipv6(), Type::raw(), Some(Protocol::icmpv6())))
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     try!(socket.send_to(&mut buffer, &dest.into()));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     try!(socket.recv_from(&mut buffer));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reply`
[INFO] [stdout]   --> src/ping.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let reply = if dest.is_ipv4() {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_reply`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.99s
[INFO] running `Command { std: "docker" "inspect" "45aa43dfc626f0a6c52f49abd24e6fb382e08215e0a4d3277216ca41292a1c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45aa43dfc626f0a6c52f49abd24e6fb382e08215e0a4d3277216ca41292a1c2a", kill_on_drop: false }`
[INFO] [stdout] 45aa43dfc626f0a6c52f49abd24e6fb382e08215e0a4d3277216ca41292a1c2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1ba4fecda267e78ba3529986254b41dbf499d4b6cf7c46fb53133fda0263c80
[INFO] running `Command { std: "docker" "start" "-a" "b1ba4fecda267e78ba3529986254b41dbf499d4b6cf7c46fb53133fda0263c80", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(Socket::new(Domain::ipv4(), Type::raw(), Some(Protocol::icmpv4())))
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(Socket::new(Domain::ipv6(), Type::raw(), Some(Protocol::icmpv6())))
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     try!(socket.send_to(&mut buffer, &dest.into()));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     try!(socket.recv_from(&mut buffer));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ping v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `reply`
[INFO] [stdout]   --> src/ping.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let reply = if dest.is_ipv4() {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_reply`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:11:32
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         try!(Socket::new(Domain::ipv4(), Type::raw(), Some(Protocol::icmpv4())))
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         try!(Socket::new(Domain::ipv6(), Type::raw(), Some(Protocol::icmpv6())))
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     try!(socket.send_to(&mut buffer, &dest.into()));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ping.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     try!(socket.recv_from(&mut buffer));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reply`
[INFO] [stdout]   --> src/ping.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let reply = if dest.is_ipv4() {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_reply`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "b1ba4fecda267e78ba3529986254b41dbf499d4b6cf7c46fb53133fda0263c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ba4fecda267e78ba3529986254b41dbf499d4b6cf7c46fb53133fda0263c80", kill_on_drop: false }`
[INFO] [stdout] b1ba4fecda267e78ba3529986254b41dbf499d4b6cf7c46fb53133fda0263c80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 59c2c28ce343eb4d9370a3fdc8db1d5494d8e544165fa10f2261b2a9ef2e3796
[INFO] running `Command { std: "docker" "start" "-a" "59c2c28ce343eb4d9370a3fdc8db1d5494d8e544165fa10f2261b2a9ef2e3796", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:11:32
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         try!(Socket::new(Domain::ipv4(), Type::raw(), Some(Protocol::icmpv4())))
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         try!(Socket::new(Domain::ipv6(), Type::raw(), Some(Protocol::icmpv6())))
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     try!(socket.send_to(&mut buffer, &dest.into()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     try!(socket.recv_from(&mut buffer));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reply`
[INFO] [stderr]   --> src/ping.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let reply = if dest.is_ipv4() {
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_reply`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:11:32
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         try!(Socket::new(Domain::ipv4(), Type::raw(), Some(Protocol::icmpv4())))
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         try!(Socket::new(Domain::ipv6(), Type::raw(), Some(Protocol::icmpv6())))
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     try!(socket.send_to(&mut buffer, &dest.into()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ping.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     try!(socket.recv_from(&mut buffer));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reply`
[INFO] [stderr]   --> src/ping.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let reply = if dest.is_ipv4() {
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_reply`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ping-6e1d5e3ea5c633e4)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-f3688f5200873c42)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ping
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "59c2c28ce343eb4d9370a3fdc8db1d5494d8e544165fa10f2261b2a9ef2e3796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c2c28ce343eb4d9370a3fdc8db1d5494d8e544165fa10f2261b2a9ef2e3796", kill_on_drop: false }`
[INFO] [stdout] 59c2c28ce343eb4d9370a3fdc8db1d5494d8e544165fa10f2261b2a9ef2e3796