[INFO] updating cached repository https://github.com/mardiros/janeiro
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3cb0ae52e329046acb75c58a3713cc363adeedbe
[INFO] testing mardiros/janeiro against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmardiros%2Fjaneiro" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mardiros/janeiro on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mardiros/janeiro
[INFO] finished tweaking git repo https://github.com/mardiros/janeiro
[INFO] tweaked toml for git repo https://github.com/mardiros/janeiro written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mardiros/janeiro already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97a5a3f47ed0023bc361e004e9d0698d590845bfc27f342d19dda43058331e3b
[INFO] running `"docker" "start" "-a" "97a5a3f47ed0023bc361e004e9d0698d590845bfc27f342d19dda43058331e3b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lazycell v0.4.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling mio v0.6.1
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling janeiro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rio.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let read_len = try!(self.socket.read(&mut buf[..]));
[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/rio.rs:298:32
[INFO] [stderr]     |
[INFO] [stderr] 298 |             let (sock, addr) = try!(self.connections[token].server_ref().socket.accept());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     try!(self.poll.register(&client.socket,
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:364:21
[INFO] [stderr]     |
[INFO] [stderr] 364 |                     try!(client.handle_read());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:386:17
[INFO] [stderr]     |
[INFO] [stderr] 386 |                 try!(self.poll.deregister(&client.socket));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:390:17
[INFO] [stderr]     |
[INFO] [stderr] 390 |                 try!(self.poll.reregister(&client.socket, token, client.interest, PollOpt::edge()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |     server: Box<ServerFactory>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[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/rio.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     protocol: Box<Protocol>,
[INFO] [stderr]    |                   ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn new(protocol: Box<Protocol>, socket: TcpStream) -> ClientConnection {
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn new_server(server: Box<ServerFactory>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn new_client(protocol: Box<Protocol>, peer_addr: SocketAddr, socket: TcpStream) -> Connection {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:214:54
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn listen(&mut self, addr: &str, server: Box<ServerFactory>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:238:55
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn connect(&mut self, addr: &str, client: Box<Protocol>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:267:43
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub fn run_until(&mut self, is_done: &Fn(&Rio) -> bool) {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Rio) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interface.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_protocol(&self) -> Box<Protocol>;
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rio.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 |                     let mut client = self.connections[client_token].client_mut();
[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]    --> src/rio.rs:353:17
[INFO] [stderr]     |
[INFO] [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.24s
[INFO] running `"docker" "inspect" "97a5a3f47ed0023bc361e004e9d0698d590845bfc27f342d19dda43058331e3b"`
[INFO] running `"docker" "rm" "-f" "97a5a3f47ed0023bc361e004e9d0698d590845bfc27f342d19dda43058331e3b"`
[INFO] [stdout] 97a5a3f47ed0023bc361e004e9d0698d590845bfc27f342d19dda43058331e3b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 135c381b6ca43f9b6b97e51105dd3818e1778937a8f6d27bb777d1cdb73f5969
[INFO] running `"docker" "start" "-a" "135c381b6ca43f9b6b97e51105dd3818e1778937a8f6d27bb777d1cdb73f5969"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling janeiro v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rio.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let read_len = try!(self.socket.read(&mut buf[..]));
[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/rio.rs:298:32
[INFO] [stderr]     |
[INFO] [stderr] 298 |             let (sock, addr) = try!(self.connections[token].server_ref().socket.accept());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     try!(self.poll.register(&client.socket,
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:364:21
[INFO] [stderr]     |
[INFO] [stderr] 364 |                     try!(client.handle_read());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:386:17
[INFO] [stderr]     |
[INFO] [stderr] 386 |                 try!(self.poll.deregister(&client.socket));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:390:17
[INFO] [stderr]     |
[INFO] [stderr] 390 |                 try!(self.poll.reregister(&client.socket, token, client.interest, PollOpt::edge()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |     server: Box<ServerFactory>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[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/rio.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     protocol: Box<Protocol>,
[INFO] [stderr]    |                   ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn new(protocol: Box<Protocol>, socket: TcpStream) -> ClientConnection {
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn new_server(server: Box<ServerFactory>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn new_client(protocol: Box<Protocol>, peer_addr: SocketAddr, socket: TcpStream) -> Connection {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:214:54
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn listen(&mut self, addr: &str, server: Box<ServerFactory>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:238:55
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn connect(&mut self, addr: &str, client: Box<Protocol>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:267:43
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub fn run_until(&mut self, is_done: &Fn(&Rio) -> bool) {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Rio) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interface.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_protocol(&self) -> Box<Protocol>;
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rio.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 |                     let mut client = self.connections[client_token].client_mut();
[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]    --> src/rio.rs:353:17
[INFO] [stderr]     |
[INFO] [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/echo_server.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn build_protocol(&self) -> Box<Protocol> {
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> tests/test_echo_server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rio.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let read_len = try!(self.socket.read(&mut buf[..]));
[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/rio.rs:298:32
[INFO] [stderr]     |
[INFO] [stderr] 298 |             let (sock, addr) = try!(self.connections[token].server_ref().socket.accept());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     try!(self.poll.register(&client.socket,
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:364:21
[INFO] [stderr]     |
[INFO] [stderr] 364 |                     try!(client.handle_read());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:386:17
[INFO] [stderr]     |
[INFO] [stderr] 386 |                 try!(self.poll.deregister(&client.socket));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:390:17
[INFO] [stderr]     |
[INFO] [stderr] 390 |                 try!(self.poll.reregister(&client.socket, token, client.interest, PollOpt::edge()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |     server: Box<ServerFactory>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[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/rio.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     protocol: Box<Protocol>,
[INFO] [stderr]    |                   ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn new(protocol: Box<Protocol>, socket: TcpStream) -> ClientConnection {
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn new_server(server: Box<ServerFactory>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn new_client(protocol: Box<Protocol>, peer_addr: SocketAddr, socket: TcpStream) -> Connection {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:214:54
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn listen(&mut self, addr: &str, server: Box<ServerFactory>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:238:55
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn connect(&mut self, addr: &str, client: Box<Protocol>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:267:43
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub fn run_until(&mut self, is_done: &Fn(&Rio) -> bool) {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Rio) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interface.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_protocol(&self) -> Box<Protocol>;
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rio.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 |                     let mut client = self.connections[client_token].client_mut();
[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]    --> src/rio.rs:353:17
[INFO] [stderr]     |
[INFO] [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `"docker" "inspect" "135c381b6ca43f9b6b97e51105dd3818e1778937a8f6d27bb777d1cdb73f5969"`
[INFO] running `"docker" "rm" "-f" "135c381b6ca43f9b6b97e51105dd3818e1778937a8f6d27bb777d1cdb73f5969"`
[INFO] [stdout] 135c381b6ca43f9b6b97e51105dd3818e1778937a8f6d27bb777d1cdb73f5969
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ca3d6f84886ba6929b22ec93eca1ec5dbeffbfe5b44dbe1878c4c5d678e82a3a
[INFO] running `"docker" "start" "-a" "ca3d6f84886ba6929b22ec93eca1ec5dbeffbfe5b44dbe1878c4c5d678e82a3a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rio.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let read_len = try!(self.socket.read(&mut buf[..]));
[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/rio.rs:298:32
[INFO] [stderr]     |
[INFO] [stderr] 298 |             let (sock, addr) = try!(self.connections[token].server_ref().socket.accept());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     try!(self.poll.register(&client.socket,
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:364:21
[INFO] [stderr]     |
[INFO] [stderr] 364 |                     try!(client.handle_read());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:386:17
[INFO] [stderr]     |
[INFO] [stderr] 386 |                 try!(self.poll.deregister(&client.socket));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:390:17
[INFO] [stderr]     |
[INFO] [stderr] 390 |                 try!(self.poll.reregister(&client.socket, token, client.interest, PollOpt::edge()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |     server: Box<ServerFactory>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/rio.rs:67:32
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let read_len = try!(self.socket.read(&mut buf[..]));
[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/rio.rs:298:32
[INFO] [stderr]     |
[INFO] [stderr] 298 |             let (sock, addr) = try!(self.connections[token].server_ref().socket.accept());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:315:21
[INFO] [stderr]     |
[INFO] [stderr] 315 |                     try!(self.poll.register(&client.socket,
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:364:21
[INFO] [stderr]     |
[INFO] [stderr] 364 |                     try!(client.handle_read());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:386:17
[INFO] [stderr]     |
[INFO] [stderr] 386 |                 try!(self.poll.deregister(&client.socket));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/rio.rs:390:17
[INFO] [stderr]     |
[INFO] [stderr] 390 |                 try!(self.poll.reregister(&client.socket, token, client.interest, PollOpt::edge()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |     server: Box<ServerFactory>,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[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/rio.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     protocol: Box<Protocol>,
[INFO] [stderr]    |                   ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn new(protocol: Box<Protocol>, socket: TcpStream) -> ClientConnection {
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn new_server(server: Box<ServerFactory>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |     protocol: Box<Protocol>,
[INFO] [stderr]    |                   ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rio.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn new(protocol: Box<Protocol>, socket: TcpStream) -> ClientConnection {
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:141:31
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn new_server(server: Box<ServerFactory>,
[INFO] [stderr]     |                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn new_client(protocol: Box<Protocol>, peer_addr: SocketAddr, socket: TcpStream) -> Connection {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:214:54
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn listen(&mut self, addr: &str, server: Box<ServerFactory>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:238:55
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn connect(&mut self, addr: &str, client: Box<Protocol>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:267:43
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub fn run_until(&mut self, is_done: &Fn(&Rio) -> bool) {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Rio) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:156:33
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn new_client(protocol: Box<Protocol>, peer_addr: SocketAddr, socket: TcpStream) -> Connection {
[INFO] [stderr]     |                                 ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:214:54
[INFO] [stderr]     |
[INFO] [stderr] 214 |     pub fn listen(&mut self, addr: &str, server: Box<ServerFactory>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn ServerFactory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:238:55
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn connect(&mut self, addr: &str, client: Box<Protocol>) -> Result<Token, io::Error> {
[INFO] [stderr]     |                                                       ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/rio.rs:267:43
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub fn run_until(&mut self, is_done: &Fn(&Rio) -> bool) {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Rio) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interface.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_protocol(&self) -> Box<Protocol>;
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rio.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 |                     let mut client = self.connections[client_token].client_mut();
[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]    --> src/rio.rs:353:17
[INFO] [stderr]     |
[INFO] [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interface.rs:36:37
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_protocol(&self) -> Box<Protocol>;
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rio.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 |                     let mut client = self.connections[client_token].client_mut();
[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]    --> src/rio.rs:353:17
[INFO] [stderr]     |
[INFO] [stderr] 353 |             let mut client = &mut self.connections[token].client_mut();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/echo_server.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn build_protocol(&self) -> Box<Protocol> {
[INFO] [stderr]    |                                     ^^^^^^^^ help: use `dyn`: `dyn Protocol`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> tests/test_echo_server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[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/janeiro-095bcc1253ce5a39
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_echo_server-11b30415efc5810d
[INFO] [stdout] test transport::test::test_transport ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_echo_server ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests janeiro
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ca3d6f84886ba6929b22ec93eca1ec5dbeffbfe5b44dbe1878c4c5d678e82a3a"`
[INFO] running `"docker" "rm" "-f" "ca3d6f84886ba6929b22ec93eca1ec5dbeffbfe5b44dbe1878c4c5d678e82a3a"`
[INFO] [stdout] ca3d6f84886ba6929b22ec93eca1ec5dbeffbfe5b44dbe1878c4c5d678e82a3a