[INFO] crate mio-uds 0.6.7 is already in cache
[INFO] checking mio-uds-0.6.7 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate mio-uds 0.6.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mio-uds 0.6.7 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mio-uds 0.6.7
[INFO] finished tweaking crates.io crate mio-uds 0.6.7
[INFO] tweaked toml for crates.io crate mio-uds 0.6.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c968f10bd1d97e85f942148ead9731396e99c23b2d505fe8f5a1d274fe8b7f90
[INFO] running `"docker" "start" "-a" "c968f10bd1d97e85f942148ead9731396e99c23b2d505fe8f5a1d274fe8b7f90"`
[INFO] [stderr]     Checking mio-uds v0.6.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:29:31
[INFO] [stderr]    |
[INFO] [stderr] 29 |             let (addr, len) = try!(sockaddr_un(path));
[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/datagram.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let fd = try!(Socket::new(libc::SOCK_DGRAM));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             try!(cvt(libc::bind(fd.fd(), addr, len)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let (a, b) = try!(Socket::pair(libc::SOCK_DGRAM));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:62:22
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let stream = try!(net::UnixDatagram::unbound());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let (addr, len) = try!(sockaddr_un(path));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let fd = try!(Socket::new(libc::SOCK_STREAM));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             try!(cvt(libc::bind(fd.fd(), addr, len)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             try!(cvt(libc::listen(fd.fd(), 128)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:62:15
[INFO] [stderr]    |
[INFO] [stderr] 62 |         match try!(self.accept_std()) {
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 |             let fd = Socket { fd: try!(cvt(libc::socket(libc::AF_UNIX, ty, 0))) };
[INFO] [stderr]    |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             try!(cvt(libc::ioctl(fd.fd, libc::FIOCLEX)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |             try!(cvt(libc::ioctl(fd.fd, libc::FIONBIO, &mut nonblocking)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |             try!(cvt(libc::socketpair(libc::AF_UNIX, ty, 0, fds.as_mut_ptr())));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             try!(cvt(libc::ioctl(a.fd, libc::FIOCLEX)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             try!(cvt(libc::ioctl(b.fd, libc::FIOCLEX)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             try!(cvt(libc::ioctl(a.fd, libc::FIONBIO, &mut nonblocking)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             try!(cvt(libc::ioctl(b.fd, libc::FIONBIO, &mut nonblocking)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/stream.rs:52:31
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let (addr, len) = try!(sockaddr_un(path));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/stream.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let socket = try!(Socket::new(libc::SOCK_STREAM));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/stream.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/socket.rs:135:39
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let addr: libc::sockaddr_un = mem::uninitialized();
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:29:31
[INFO] [stderr]    |
[INFO] [stderr] 29 |             let (addr, len) = try!(sockaddr_un(path));
[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/datagram.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let fd = try!(Socket::new(libc::SOCK_DGRAM));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             try!(cvt(libc::bind(fd.fd(), addr, len)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let (a, b) = try!(Socket::pair(libc::SOCK_DGRAM));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:62:22
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let stream = try!(net::UnixDatagram::unbound());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/datagram.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:33:31
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let (addr, len) = try!(sockaddr_un(path));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let fd = try!(Socket::new(libc::SOCK_STREAM));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             try!(cvt(libc::bind(fd.fd(), addr, len)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             try!(cvt(libc::listen(fd.fd(), 128)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/listener.rs:62:15
[INFO] [stderr]    |
[INFO] [stderr] 62 |         match try!(self.accept_std()) {
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:44:35
[INFO] [stderr]    |
[INFO] [stderr] 44 |             let fd = Socket { fd: try!(cvt(libc::socket(libc::AF_UNIX, ty, 0))) };
[INFO] [stderr]    |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             try!(cvt(libc::ioctl(fd.fd, libc::FIOCLEX)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |             try!(cvt(libc::ioctl(fd.fd, libc::FIONBIO, &mut nonblocking)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |             try!(cvt(libc::socketpair(libc::AF_UNIX, ty, 0, fds.as_mut_ptr())));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             try!(cvt(libc::ioctl(a.fd, libc::FIOCLEX)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             try!(cvt(libc::ioctl(b.fd, libc::FIOCLEX)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             try!(cvt(libc::ioctl(a.fd, libc::FIONBIO, &mut nonblocking)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             try!(cvt(libc::ioctl(b.fd, libc::FIONBIO, &mut nonblocking)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/stream.rs:52:31
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let (addr, len) = try!(sockaddr_un(path));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/stream.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let socket = try!(Socket::new(libc::SOCK_STREAM));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/stream.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         try!(stream.set_nonblocking(true));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/socket.rs:135:39
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let addr: libc::sockaddr_un = mem::uninitialized();
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> tests/echo.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |             try!(poll.reregister(&self.sock, self.token, self.interest,
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::len': Index access removed in favor of iterator only API.
[INFO] [stderr]    --> tests/echo.rs:271:28
[INFO] [stderr]     |
[INFO] [stderr] 271 |         for i in 0..events.len() {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:58:23
[INFO] [stderr]    |
[INFO] [stderr] 58 |     assert_eq!(events.get(0).unwrap().readiness(), Ready::writable());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]    --> tests/echo.rs:272:32
[INFO] [stderr]     |
[INFO] [stderr] 272 |             let event = events.get(i).unwrap();
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:59:23
[INFO] [stderr]    |
[INFO] [stderr] 59 |     assert_eq!(events.get(1).unwrap().readiness(), Ready::writable());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:64:20
[INFO] [stderr]    |
[INFO] [stderr] 64 |     assert!(events.get(0).unwrap().readiness().is_readable());
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:65:23
[INFO] [stderr]    |
[INFO] [stderr] 65 |     assert_eq!(events.get(0).unwrap().token(), Token(2));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:81:23
[INFO] [stderr]    |
[INFO] [stderr] 81 |     assert_eq!(events.get(0).unwrap().readiness(), Ready::writable());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:82:23
[INFO] [stderr]    |
[INFO] [stderr] 82 |     assert_eq!(events.get(1).unwrap().readiness(), Ready::writable());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:91:20
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert!(events.get(0).unwrap().readiness().is_readable());
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mio::Events::get': Index access removed in favor of iterator only API.
[INFO] [stderr]   --> tests/smoke.rs:92:23
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assert_eq!(events.get(0).unwrap().token(), Token(2));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/smoke.rs:96:14
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let (mut first, mut last) = recv.split_at_mut(6);
[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: variable does not need to be mutable
[INFO] [stderr]   --> tests/smoke.rs:96:25
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let (mut first, mut last) = recv.split_at_mut(6);
[INFO] [stderr]    |                         ----^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "c968f10bd1d97e85f942148ead9731396e99c23b2d505fe8f5a1d274fe8b7f90"`
[INFO] running `"docker" "rm" "-f" "c968f10bd1d97e85f942148ead9731396e99c23b2d505fe8f5a1d274fe8b7f90"`
[INFO] [stdout] c968f10bd1d97e85f942148ead9731396e99c23b2d505fe8f5a1d274fe8b7f90
