[INFO] fetching crate hawk-ws 0.1.1...
[INFO] checking hawk-ws-0.1.1 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate hawk-ws 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate hawk-ws 0.1.1 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hawk-ws 0.1.1
[INFO] finished tweaking crates.io crate hawk-ws 0.1.1
[INFO] tweaked toml for crates.io crate hawk-ws 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.6.10 (available: v1.1.3)
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[INFO] [stderr]       Adding foreign-types v0.3.2 (available: v0.5.0)
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[INFO] [stderr]       Adding thread_local v0.3.6 (available: v1.1.8)
[INFO] [stderr]       Adding time v0.1.45 (available: v0.3.36)
[INFO] [stderr]       Adding ucd-util v0.1.10 (available: v0.2.1)
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[INFO] [stderr]       Adding url v1.7.2 (available: v2.5.2)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding winapi v0.2.8 (available: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cc99288d11af167f1a187dcfcf7da102b564caf350fb8b6f12d876fe0e4ed1f
[INFO] running `Command { std: "docker" "start" "-a" "4cc99288d11af167f1a187dcfcf7da102b564caf350fb8b6f12d876fe0e4ed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cc99288d11af167f1a187dcfcf7da102b564caf350fb8b6f12d876fe0e4ed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cc99288d11af167f1a187dcfcf7da102b564caf350fb8b6f12d876fe0e4ed1f", kill_on_drop: false }`
[INFO] [stdout] 4cc99288d11af167f1a187dcfcf7da102b564caf350fb8b6f12d876fe0e4ed1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7652f0f479c2042b180b2ff292eaa81cc038cfd21cf5ef4e2416d3b77b08ce6f
[INFO] running `Command { std: "docker" "start" "-a" "7652f0f479c2042b180b2ff292eaa81cc038cfd21cf5ef4e2416d3b77b08ce6f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking hawk-ws v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/result.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Custom(Box<StdError + Send + Sync>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Custom(Box<dyn StdError + Send + Sync>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/result.rs:131:32
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/result.rs:84:34
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn into_box(self) -> Box<StdError> {
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn into_box(self) -> Box<dyn StdError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stdout] error[E0463]: can't find crate for `ws`
[INFO] [stdout]  --> examples/unsafe-ssl-client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate ws;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `ws`
[INFO] [stdout]   --> examples/peer2peer.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | extern crate ws;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `ws`
[INFO] [stdout]  --> examples/router.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate ws;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `ws`
[INFO] [stdout]  --> examples/autobahn-client.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate ws;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/router.rs:13:63
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn on_request(&mut self, req: &ws::Request) -> ws::Result<(ws::Response)> {
[INFO] [stdout]    |                                                               ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -     fn on_request(&mut self, req: &ws::Request) -> ws::Result<(ws::Response)> {
[INFO] [stdout] 13 +     fn on_request(&mut self, req: &ws::Request) -> ws::Result<ws::Response> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/router.rs:82:63
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn on_request(&mut self, req: &ws::Request) -> ws::Result<(ws::Response)> {
[INFO] [stdout]    |                                                               ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -     fn on_request(&mut self, req: &ws::Request) -> ws::Result<(ws::Response)> {
[INFO] [stdout] 82 +     fn on_request(&mut self, req: &ws::Request) -> ws::Result<ws::Response> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/router.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let mut res = try!(ws::Response::from_request(req));
[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]    --> examples/router.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             try!(self.ws.send(*msg))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hawk-ws` (example "unsafe-ssl-client") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/autobahn-client.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     try!(connect("ws://127.0.0.1:9001/getCaseCount", |out| {
[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]   --> examples/autobahn-client.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let count = try!(msg.as_text());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hawk-ws` (example "router") due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] error[E0463]: can't find crate for `ws`
[INFO] [stdout]  --> examples/threaded.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate ws;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `ws`
[INFO] [stdout]  --> examples/pong.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate ws;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/pong.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         try!(self.out.timeout(5_000, PING));
[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]   --> examples/pong.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 try!(self.out.ping(time::precise_time_ns().to_string().into()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/pong.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 try!(self.out.cancel(t))
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/pong.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 try!(self.out.cancel(t))
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> examples/pong.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         try!(self.out.timeout(30_000, EXPIRE));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> examples/pong.rs:110:31
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if let Ok(pong) = try!(from_utf8(frame.payload())).parse::<u64>() {
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hawk-ws` (example "threaded") due to 2 previous errors
[INFO] [stderr] error: could not compile `hawk-ws` (example "peer2peer") due to 2 previous errors
[INFO] [stderr] error: could not compile `hawk-ws` (example "pong") due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] error: could not compile `hawk-ws` (example "autobahn-client") due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/result.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Custom(Box<StdError + Send + Sync>),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Custom(Box<dyn StdError + Send + Sync>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/result.rs:131:32
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/result.rs:84:34
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn into_box(self) -> Box<StdError> {
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn into_box(self) -> Box<dyn StdError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused closure that must be used
[INFO] [stdout]   --> src/factory.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         factory.connection_made(Sender::new(mio::Token(0), chn, 0));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7652f0f479c2042b180b2ff292eaa81cc038cfd21cf5ef4e2416d3b77b08ce6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7652f0f479c2042b180b2ff292eaa81cc038cfd21cf5ef4e2416d3b77b08ce6f", kill_on_drop: false }`
[INFO] [stdout] 7652f0f479c2042b180b2ff292eaa81cc038cfd21cf5ef4e2416d3b77b08ce6f
