[INFO] crate net-utils 0.0.5 is already in cache
[INFO] checking net-utils-0.0.5 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate net-utils 0.0.5 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate net-utils 0.0.5 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate net-utils 0.0.5
[INFO] finished tweaking crates.io crate net-utils 0.0.5
[INFO] tweaked toml for crates.io crate net-utils 0.0.5 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 75b19989ea8c5978cf4ee88dd27276796aa84d885d8852025efcd686336547f4
[INFO] running `"docker" "start" "-a" "75b19989ea8c5978cf4ee88dd27276796aa84d885d8852025efcd686336547f4"`
[INFO] [stderr]     Checking net-utils v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/net/conn.rs:151:22
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let server = try!(Connection::host_to_sock_address(host, port));
[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/net/conn.rs:154:29
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stream_socket = try!(TcpStream::connect_timeout(
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/net/conn.rs:159:29
[INFO] [stderr]     |
[INFO] [stderr] 159 |             stream_socket = try!(TcpStream::connect(server));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/net/conn.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let writer_socket = try!(stream_socket.try_clone());
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/net/config.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]   --> src/net/conn.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use std::str::FromStr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/net/conn.rs:361:47
[INFO] [stderr]     |
[INFO] [stderr] 361 |     fn write(&mut self, buf: &[u8]) -> Result<(usize)> {
[INFO] [stderr]     |                                               ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/net/conn.rs:151:22
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let server = try!(Connection::host_to_sock_address(host, port));
[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/net/conn.rs:154:29
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stream_socket = try!(TcpStream::connect_timeout(
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/net/conn.rs:159:29
[INFO] [stderr]     |
[INFO] [stderr] 159 |             stream_socket = try!(TcpStream::connect(server));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/net/conn.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let writer_socket = try!(stream_socket.try_clone());
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/net/config.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/net/config.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     use std::time::Duration;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]   --> src/net/conn.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use std::str::FromStr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/net/conn.rs:361:47
[INFO] [stderr]     |
[INFO] [stderr] 361 |     fn write(&mut self, buf: &[u8]) -> Result<(usize)> {
[INFO] [stderr]     |                                               ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/net/poolmgr.rs:296:46
[INFO] [stderr]     |
[INFO] [stderr] 296 |         use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/net/poolmgr.rs:297:43
[INFO] [stderr]     |
[INFO] [stderr] 297 |         static NEXT_OFFSET: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/net/conn.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |           let server = match (host, port).to_socket_addrs() {
[INFO] [stderr]     |  ______________________-
[INFO] [stderr] 121 | |             Ok(mut host_iter) => {
[INFO] [stderr] 122 | |                 match host_iter.next() {
[INFO] [stderr] 123 | |                     Some(mut host_addr) => return Ok(host_addr),
[INFO] [stderr] ...   |
[INFO] [stderr] 135 | |             }
[INFO] [stderr] 136 | |         };
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 137 |           let err_str = format!("Failed to parse {}:{}. ", host, port);
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/net/conn.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |           let server = match (host, port).to_socket_addrs() {
[INFO] [stderr]     |  ______________________-
[INFO] [stderr] 121 | |             Ok(mut host_iter) => {
[INFO] [stderr] 122 | |                 match host_iter.next() {
[INFO] [stderr] 123 | |                     Some(mut host_addr) => return Ok(host_addr),
[INFO] [stderr] ...   |
[INFO] [stderr] 135 | |             }
[INFO] [stderr] 136 | |         };
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 137 |           let err_str = format!("Failed to parse {}:{}. ", host, port);
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `server`
[INFO] [stderr]    --> src/net/conn.rs:120:13
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let server = match (host, port).to_socket_addrs() {
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/net/conn.rs:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |                     Some(mut host_addr) => return Ok(host_addr),
[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/net/conn.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut stream_socket;
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_file`
[INFO] [stderr]   --> src/net/config.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn from_file(file: &str) -> Config {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for an associated function
[INFO] [stderr]   --> src/net/conn.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn get_peer_address(&self) -> &String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![warn(missing_docs)]
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for an associated function
[INFO] [stderr]   --> src/net/conn.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn get_local_address(&self) -> &String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `server`
[INFO] [stderr]    --> src/net/conn.rs:120:13
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let server = match (host, port).to_socket_addrs() {
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/net/conn.rs:123:26
[INFO] [stderr]     |
[INFO] [stderr] 123 |                     Some(mut host_addr) => return Ok(host_addr),
[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/net/conn.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut stream_socket;
[INFO] [stderr]     |             ----^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_file`
[INFO] [stderr]   --> src/net/config.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn from_file(file: &str) -> Config {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `"docker" "inspect" "75b19989ea8c5978cf4ee88dd27276796aa84d885d8852025efcd686336547f4"`
[INFO] running `"docker" "rm" "-f" "75b19989ea8c5978cf4ee88dd27276796aa84d885d8852025efcd686336547f4"`
[INFO] [stdout] 75b19989ea8c5978cf4ee88dd27276796aa84d885d8852025efcd686336547f4
