[INFO] cloning repository https://github.com/meneriaz/palaver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meneriaz/palaver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeneriaz%2Fpalaver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeneriaz%2Fpalaver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa78e2d7fd787d142b1d9ef8cd9302d631eae53b
[INFO] checking meneriaz/palaver against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeneriaz%2Fpalaver" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meneriaz/palaver on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/meneriaz/palaver
[INFO] finished tweaking git repo https://github.com/meneriaz/palaver
[INFO] tweaked toml for git repo https://github.com/meneriaz/palaver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/meneriaz/palaver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7a144b4608a086292bbfe0df29e045832175441b1fadb9d184cba52f6efb294
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7a144b4608a086292bbfe0df29e045832175441b1fadb9d184cba52f6efb294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7a144b4608a086292bbfe0df29e045832175441b1fadb9d184cba52f6efb294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a144b4608a086292bbfe0df29e045832175441b1fadb9d184cba52f6efb294", kill_on_drop: false }`
[INFO] [stdout] d7a144b4608a086292bbfe0df29e045832175441b1fadb9d184cba52f6efb294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac880618f253b5dff971ebf6f4ab33d011abc98e45e0253dbdcc7e8c63bf2417
[INFO] running `Command { std: "docker" "start" "-a" "ac880618f253b5dff971ebf6f4ab33d011abc98e45e0253dbdcc7e8c63bf2417", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking palaver v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{`
[INFO] [stdout]   --> src/connection.rs:37:39
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let future = Future::spawn(proc() {
[INFO] [stdout]    |                                      -^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::BufferedReader`, `std::io::BufferedWriter`
[INFO] [stdout]  --> src/connection.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufferedReader, BufferedWriter};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^ no `BufferedWriter` in `io`
[INFO] [stdout]   |               |
[INFO] [stdout]   |               no `BufferedReader` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::IoResult`, `std::io::TcpStream`
[INFO] [stdout]  --> src/connection.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{IoResult, TcpStream};
[INFO] [stdout]   |               ^^^^^^^^  ^^^^^^^^^ no `TcpStream` in `io`
[INFO] [stdout]   |               |
[INFO] [stdout]   |               no `IoResult` in `io`
[INFO] [stdout]   |               help: a similar name exists in the module: `Result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::sync::Future`
[INFO] [stdout]  --> src/connection.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `Future` in `sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `{`
[INFO] [stdout]   --> src/connection.rs:37:39
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let future = Future::spawn(proc() {
[INFO] [stdout]    |                                      -^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::BufferedReader`, `std::io::BufferedWriter`
[INFO] [stdout]  --> src/connection.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufferedReader, BufferedWriter};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^ no `BufferedWriter` in `io`
[INFO] [stdout]   |               |
[INFO] [stdout]   |               no `BufferedReader` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::IoResult`, `std::io::TcpStream`
[INFO] [stdout]  --> src/connection.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{IoResult, TcpStream};
[INFO] [stdout]   |               ^^^^^^^^  ^^^^^^^^^ no `TcpStream` in `io`
[INFO] [stdout]   |               |
[INFO] [stdout]   |               no `IoResult` in `io`
[INFO] [stdout]   |               help: a similar name exists in the module: `Result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::sync::Future`
[INFO] [stdout]  --> src/connection.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `Future` in `sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![experimental]
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `select` in this scope
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         select! {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![experimental]
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `select` in this scope
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         select! {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in this scope
[INFO] [stdout]  --> src/connection.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Connection = (Receiver<Vec<u8>>,
[INFO] [stdout]   |                    ^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Receiver;
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Writer` in this scope
[INFO] [stdout]   --> src/connection.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn send<T: Writer>(w: &mut T, messages: &[Message]) -> IoResult<()> {
[INFO] [stdout]    |                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in this scope
[INFO] [stdout]   --> src/connection.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let (tx, rx) = channel();
[INFO] [stdout]    |                    ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::sync::mpsc::channel;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `proc` in this scope
[INFO] [stdout]   --> src/connection.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let future = Future::spawn(proc() {
[INFO] [stdout]    |                                ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Writer` in this scope
[INFO] [stdout]   --> src/connection.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn buffer_message<T: Writer>(w: &mut T, prefix: Option<&[u8]>, command: &[u8],
[INFO] [stdout]    |                      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]   --> src/main.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let args = os::args();
[INFO] [stdout]    |                    ^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::env::args;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(buffer_message(w, prefix, command, params));
[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/connection.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let stream = try!(TcpStream::connect(host, port));
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |         loop { tx.send(try!(reader.read_until(b'\n'))); }
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     try!(send(&mut stream_writer,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             try!(w.write(p));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             try!(w.write(b" "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     try!(w.write(command));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(w.write(b" "));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         try!(w.write(*param));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             try!(w.write(b" :"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             try!(w.write(*param));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in this scope
[INFO] [stdout]  --> src/connection.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Connection = (Receiver<Vec<u8>>,
[INFO] [stdout]   |                    ^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Receiver;
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Writer` in this scope
[INFO] [stdout]   --> src/connection.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn send<T: Writer>(w: &mut T, messages: &[Message]) -> IoResult<()> {
[INFO] [stdout]    |                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `channel` in this scope
[INFO] [stdout]   --> src/connection.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let (tx, rx) = channel();
[INFO] [stdout]    |                    ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::sync::mpsc::channel;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `proc` in this scope
[INFO] [stdout]   --> src/connection.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let future = Future::spawn(proc() {
[INFO] [stdout]    |                                ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Writer` in this scope
[INFO] [stdout]   --> src/connection.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn buffer_message<T: Writer>(w: &mut T, prefix: Option<&[u8]>, command: &[u8],
[INFO] [stdout]    |                      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]   --> src/main.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let args = os::args();
[INFO] [stdout]    |                    ^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::env::args;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(buffer_message(w, prefix, command, params));
[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/connection.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let stream = try!(TcpStream::connect(host, port));
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |         loop { tx.send(try!(reader.read_until(b'\n'))); }
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     try!(send(&mut stream_writer,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             try!(w.write(p));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             try!(w.write(b" "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     try!(w.write(command));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(w.write(b" "));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         try!(w.write(*param));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             try!(w.write(b" :"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/connection.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             try!(w.write(*param));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `palaver`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ac880618f253b5dff971ebf6f4ab33d011abc98e45e0253dbdcc7e8c63bf2417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac880618f253b5dff971ebf6f4ab33d011abc98e45e0253dbdcc7e8c63bf2417", kill_on_drop: false }`
[INFO] [stdout] ac880618f253b5dff971ebf6f4ab33d011abc98e45e0253dbdcc7e8c63bf2417