[INFO] fetching crate wires 0.7.1...
[INFO] checking wires-0.7.1 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate wires 0.7.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate wires 0.7.1 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wires 0.7.1
[INFO] finished tweaking crates.io crate wires 0.7.1
[INFO] tweaked toml for crates.io crate wires 0.7.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.5.3 (available: v1.1.3)
[INFO] [stderr]       Adding bzip2 v0.3.3 (available: v0.4.4)
[INFO] [stderr]       Adding cookie v0.2.5 (available: v0.18.1)
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[INFO] [stderr]       Adding flate2 v0.2.20 (available: v1.0.34)
[INFO] [stderr]       Adding hpack v0.2.0 (available: v0.3.0)
[INFO] [stderr]       Adding hyper v0.8.1 (available: v1.4.1)
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[INFO] [stderr]       Adding language-tags v0.2.2 (available: v0.3.2)
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[INFO] [stderr]       Adding mime v0.2.6 (available: v0.3.17)
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[INFO] [stderr]       Adding mozrunner v0.2.0 (available: v0.15.3)
[INFO] [stderr]       Adding num_cpus v0.2.13 (available: v1.16.0)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (available: v2.3.1)
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[INFO] [stderr]       Adding traitobject v0.0.1 (available: v0.1.0)
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[INFO] [stderr]       Adding url v0.5.10 (available: v2.5.2)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded msdos_time v0.1.6
[INFO] [stderr]   Downloaded bzip2 v0.3.3
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[INFO] [stderr]   Downloaded webdriver v0.8.1
[INFO] [stderr]   Downloaded zip v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d44ad4f9cc8258daad8dae373a3343bdd32c5c40e32d301d6ca3afc96ef6c446
[INFO] running `Command { std: "docker" "start" "-a" "d44ad4f9cc8258daad8dae373a3343bdd32c5c40e32d301d6ca3afc96ef6c446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d44ad4f9cc8258daad8dae373a3343bdd32c5c40e32d301d6ca3afc96ef6c446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44ad4f9cc8258daad8dae373a3343bdd32c5c40e32d301d6ca3afc96ef6c446", kill_on_drop: false }`
[INFO] [stdout] d44ad4f9cc8258daad8dae373a3343bdd32c5c40e32d301d6ca3afc96ef6c446
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ee669acd51a56aeb931a24d39d090e2665de80c373d958a3db42c470d45328a
[INFO] running `Command { std: "docker" "start" "-a" "5ee669acd51a56aeb931a24d39d090e2665de80c373d958a3db42c470d45328a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking unicode-bidi v0.2.6
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking podio v0.1.7
[INFO] [stderr]     Checking mozprofile v0.2.1
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking mozrunner v0.2.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v0.5.10
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.1.19
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking hyper v0.8.1
[INFO] [stderr]     Checking webdriver v0.8.1
[INFO] [stderr]     Checking wires v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]    --> src/marionette.rs:942:10
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout]     = note: `#[deny(soft_unstable)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/marionette.rs:942:10
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]    --> src/marionette.rs:942:26
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/marionette.rs:942:26
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:144:58
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let parameters: GeckoContextParameters = try!(Parameters::from_json(&body_data));
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let data = try!(body.as_object().ok_or(
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:192:29
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let context_value = try!(data.get("context").ok_or(
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let value = try!(context_value.as_string().ok_or(
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:199:23
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let context = try!(match value {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |         try!(connection.connect());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]    --> src/marionette.rs:942:10
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout]     = note: `#[deny(soft_unstable)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:270:23
[INFO] [stdout]     |
[INFO] [stdout] 270 |         let profile = try!(self.load_profile(capabilities));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:293:17
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 try!(self.set_prefs(&mut runner.profile, custom_profile));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/marionette.rs:942:10
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[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/marionette.rs:294:17
[INFO] [stdout]     |
[INFO] [stdout] 294 |                 try!(runner.start());
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of unstable library feature 'rustc_encodable_decodable': derive macro for `rustc-serialize`; should not be used in new code
[INFO] [stdout]    --> src/marionette.rs:942:26
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:292:34
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 let mut runner = try!(FirefoxRunner::new(&binary, profile));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/marionette.rs:942:26
[INFO] [stdout]     |
[INFO] [stdout] 942 | #[derive(RustcEncodable, RustcDecodable)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |         try!(prefs.write());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:308:21
[INFO] [stdout]     |
[INFO] [stdout] 308 |         let prefs = try!(profile.user_prefs());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:144:58
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let parameters: GeckoContextParameters = try!(Parameters::from_json(&body_data));
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 339 |         try!(unzip_buffer(profile_zip,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:189:20
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let data = try!(body.as_object().ok_or(
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:192:29
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let context_value = try!(data.get("context").ok_or(
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:332:30
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let profile_base64 = try!(profile_json.as_string().ok_or(
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let value = try!(context_value.as_string().ok_or(
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:336:29
[INFO] [stdout]     |
[INFO] [stdout] 336 |         let profile_zip = &*try!(profile_base64.from_base64());
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:199:23
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let context = try!(match value {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:338:23
[INFO] [stdout]     |
[INFO] [stdout] 338 |         let profile = try!(Profile::new(None));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:281:9
[INFO] [stdout]     |
[INFO] [stdout] 281 |         try!(connection.connect());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:348:19
[INFO] [stdout]     |
[INFO] [stdout] 348 |     let mut zip = try!(zip::ZipArchive::new(reader).map_err(|_| {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:270:23
[INFO] [stdout]     |
[INFO] [stdout] 270 |         let profile = try!(self.load_profile(capabilities));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:371:9
[INFO] [stdout]     |
[INFO] [stdout] 371 |         try!(io::copy(&mut file, &mut writer));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:293:17
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 try!(self.set_prefs(&mut runner.profile, custom_profile));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:354:24
[INFO] [stdout]     |
[INFO] [stdout] 354 |         let mut file = try!(zip.by_index(i).map_err(|_| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:294:17
[INFO] [stdout]     |
[INFO] [stdout] 294 |                 try!(runner.start());
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:292:34
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 let mut runner = try!(FirefoxRunner::new(&binary, profile));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:364:21
[INFO] [stdout]     |
[INFO] [stdout] 364 |                     try!(fs::create_dir_all(dir));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |         try!(prefs.write());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:369:20
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let dest = try!(fs::File::create(unzip_path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:308:21
[INFO] [stdout]     |
[INFO] [stdout] 308 |         let prefs = try!(profile.user_prefs());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:402:13
[INFO] [stdout]     |
[INFO] [stdout] 402 |             try!(self.create_connection(&msg.session_id, &capabilities));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:339:9
[INFO] [stdout]     |
[INFO] [stdout] 339 |         try!(unzip_buffer(profile_zip,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:516:9
[INFO] [stdout]     |
[INFO] [stdout] 516 |         try!(self.update(message, &resp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:590:31
[INFO] [stdout]     |
[INFO] [stdout] 590 |                 let cookies = try!(self.process_cookies(&resp.result));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:594:35
[INFO] [stdout]     |
[INFO] [stdout] 594 |                 let mut cookies = try!(self.process_cookies(&resp.result));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:332:30
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let profile_base64 = try!(profile_json.as_string().ok_or(
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:599:31
[INFO] [stdout]     |
[INFO] [stdout] 599 |                 let element = try!(self.to_web_element(
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:336:29
[INFO] [stdout]     |
[INFO] [stdout] 336 |         let profile_zip = &*try!(profile_base64.from_base64());
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:338:23
[INFO] [stdout]     |
[INFO] [stdout] 338 |         let profile = try!(Profile::new(None));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:609:32
[INFO] [stdout]     |
[INFO] [stdout] 609 |                 let elements = try!(element_vec.iter().map(
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:348:19
[INFO] [stdout]     |
[INFO] [stdout] 348 |     let mut zip = try!(zip::ZipArchive::new(reader).map_err(|_| {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:617:31
[INFO] [stdout]     |
[INFO] [stdout] 617 |                 let element = try!(self.to_web_element(
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:371:9
[INFO] [stdout]     |
[INFO] [stdout] 371 |         try!(io::copy(&mut file, &mut writer));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:679:24
[INFO] [stdout]     |
[INFO] [stdout] 679 |             let path = try!(
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:354:24
[INFO] [stdout]     |
[INFO] [stdout] 354 |         let mut file = try!(zip.by_index(i).map_err(|_| {
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:686:26
[INFO] [stdout]     |
[INFO] [stdout] 686 |             let domain = try!(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:364:21
[INFO] [stdout]     |
[INFO] [stdout] 364 |                     try!(fs::create_dir_all(dir));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:693:26
[INFO] [stdout]     |
[INFO] [stdout] 693 |             let expiry = try!(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:369:20
[INFO] [stdout]     |
[INFO] [stdout] 369 |         let dest = try!(fs::File::create(unzip_path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:402:13
[INFO] [stdout]     |
[INFO] [stdout] 402 |             try!(self.create_connection(&msg.session_id, &capabilities));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:516:9
[INFO] [stdout]     |
[INFO] [stdout] 516 |         try!(self.update(message, &resp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/marionette.rs:696:54
[INFO] [stdout]     |
[INFO] [stdout] 696 | ...                   Ok(Date::new((try_opt!(
[INFO] [stdout]     |                                    ^
[INFO] [stdout] ...
[INFO] [stdout] 699 | ...                       "Failed to interpret domain as String"))))
[INFO] [stdout]     |                                                                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 696 ~                                         Ok(Date::new(try_opt!(
[INFO] [stdout] 697 |                                             x.as_u64(),
[INFO] [stdout] 698 |                                             ErrorStatus::UnknownError,
[INFO] [stdout] 699 ~                                             "Failed to interpret domain as String")))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:590:31
[INFO] [stdout]     |
[INFO] [stdout] 590 |                 let cookies = try!(self.process_cookies(&resp.result));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:701:27
[INFO] [stdout]     |
[INFO] [stdout] 701 |             let max_age = try!(
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:594:35
[INFO] [stdout]     |
[INFO] [stdout] 594 |                 let mut cookies = try!(self.process_cookies(&resp.result));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:599:31
[INFO] [stdout]     |
[INFO] [stdout] 599 |                 let element = try!(self.to_web_element(
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:609:32
[INFO] [stdout]     |
[INFO] [stdout] 609 |                 let elements = try!(element_vec.iter().map(
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:617:31
[INFO] [stdout]     |
[INFO] [stdout] 617 |                 let element = try!(self.to_web_element(
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/marionette.rs:704:54
[INFO] [stdout]     |
[INFO] [stdout] 704 | ...                   Ok(Date::new((try_opt!(
[INFO] [stdout]     |                                    ^
[INFO] [stdout] ...
[INFO] [stdout] 707 | ...                       "Failed to interpret domain as String"))))
[INFO] [stdout]     |                                                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 704 ~                                         Ok(Date::new(try_opt!(
[INFO] [stdout] 705 |                                             x.as_u64(),
[INFO] [stdout] 706 |                                             ErrorStatus::UnknownError,
[INFO] [stdout] 707 ~                                             "Failed to interpret domain as String")))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:679:24
[INFO] [stdout]     |
[INFO] [stdout] 679 |             let path = try!(
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:686:26
[INFO] [stdout]     |
[INFO] [stdout] 686 |             let domain = try!(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:796:32
[INFO] [stdout]     |
[INFO] [stdout] 796 |                 let mut data = try!(x.to_marionette());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:693:26
[INFO] [stdout]     |
[INFO] [stdout] 693 |             let expiry = try!(
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:801:32
[INFO] [stdout]     |
[INFO] [stdout] 801 |                 let mut data = try!(x.to_marionette());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:875:26
[INFO] [stdout]     |
[INFO] [stdout] 875 |         let parameters = try!(opt_parameters.unwrap_or(Ok(BTreeMap::new())));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:914:18
[INFO] [stdout]     |
[INFO] [stdout] 914 |             Some(try!(MarionetteError::from_json(&data[2])))
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1038:9
[INFO] [stdout]      |
[INFO] [stdout] 1038 |         try!(self.handshake());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/marionette.rs:696:54
[INFO] [stdout]     |
[INFO] [stdout] 696 | ...                   Ok(Date::new((try_opt!(
[INFO] [stdout]     |                                    ^
[INFO] [stdout] ...
[INFO] [stdout] 699 | ...                       "Failed to interpret domain as String"))))
[INFO] [stdout]     |                                                                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 696 ~                                         Ok(Date::new(try_opt!(
[INFO] [stdout] 697 |                                             x.as_u64(),
[INFO] [stdout] 698 |                                             ErrorStatus::UnknownError,
[INFO] [stdout] 699 ~                                             "Failed to interpret domain as String")))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1044:20
[INFO] [stdout]      |
[INFO] [stdout] 1044 |         let resp = try!(self.read_resp());
[INFO] [stdout]      |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:701:27
[INFO] [stdout]     |
[INFO] [stdout] 701 |             let max_age = try!(
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1045:30
[INFO] [stdout]      |
[INFO] [stdout] 1045 |         let handshake_data = try!(Json::from_str(&*resp));
[INFO] [stdout]      |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1078:23
[INFO] [stdout]      |
[INFO] [stdout] 1078 |         let command = try!(MarionetteCommand::from_webdriver_message(
[INFO] [stdout]      |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1081:25
[INFO] [stdout]      |
[INFO] [stdout] 1081 |         let resp_data = try!(self.send(command.to_json()));
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/marionette.rs:704:54
[INFO] [stdout]     |
[INFO] [stdout] 704 | ...                   Ok(Date::new((try_opt!(
[INFO] [stdout]     |                                    ^
[INFO] [stdout] ...
[INFO] [stdout] 707 | ...                       "Failed to interpret domain as String"))))
[INFO] [stdout]     |                                                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 704 ~                                         Ok(Date::new(try_opt!(
[INFO] [stdout] 705 |                                             x.as_u64(),
[INFO] [stdout] 706 |                                             ErrorStatus::UnknownError,
[INFO] [stdout] 707 ~                                             "Failed to interpret domain as String")))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1083:32
[INFO] [stdout]      |
[INFO] [stdout] 1083 |         let json_data : Json = try!(Json::from_str(&*resp_data));
[INFO] [stdout]      |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:796:32
[INFO] [stdout]     |
[INFO] [stdout] 796 |                 let mut data = try!(x.to_marionette());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1085:36
[INFO] [stdout]      |
[INFO] [stdout] 1085 |         self.session.response(msg, try!(MarionetteResponse::from_json(&json_data)))
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:801:32
[INFO] [stdout]     |
[INFO] [stdout] 801 |                 let mut data = try!(x.to_marionette());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1128:28
[INFO] [stdout]      |
[INFO] [stdout] 1128 |             let num_read = try!(stream.read(buf));
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:875:26
[INFO] [stdout]     |
[INFO] [stdout] 875 |         let parameters = try!(opt_parameters.unwrap_or(Ok(BTreeMap::new())));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/marionette.rs:914:18
[INFO] [stdout]     |
[INFO] [stdout] 914 |             Some(try!(MarionetteError::from_json(&data[2])))
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/marionette.rs:1139:20
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 '0'...'9' => {
[INFO] [stdout]      |                    ^^^ help: use `..=` for an inclusive range
[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(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1038:9
[INFO] [stdout]      |
[INFO] [stdout] 1038 |         try!(self.handshake());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1153:28
[INFO] [stdout]      |
[INFO] [stdout] 1153 |             let num_read = try!(stream.read(buf));
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1044:20
[INFO] [stdout]      |
[INFO] [stdout] 1044 |         let resp = try!(self.read_resp());
[INFO] [stdout]      |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1266:52
[INFO] [stdout]      |
[INFO] [stdout] 1266 |             Nullable::Value(ref x) => Json::Object(try!(x.to_marionette()))
[INFO] [stdout]      |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1045:30
[INFO] [stdout]      |
[INFO] [stdout] 1045 |         let handshake_data = try!(Json::from_str(&*resp));
[INFO] [stdout]      |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1296:65
[INFO] [stdout]      |
[INFO] [stdout] 1296 | ...                   Json::Object(try!(x.to_marionette()))),
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1078:23
[INFO] [stdout]      |
[INFO] [stdout] 1078 |         let command = try!(MarionetteCommand::from_webdriver_message(
[INFO] [stdout]      |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1081:25
[INFO] [stdout]      |
[INFO] [stdout] 1081 |         let resp_data = try!(self.send(command.to_json()));
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1083:32
[INFO] [stdout]      |
[INFO] [stdout] 1083 |         let json_data : Json = try!(Json::from_str(&*resp_data));
[INFO] [stdout]      |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1085:36
[INFO] [stdout]      |
[INFO] [stdout] 1085 |         self.session.response(msg, try!(MarionetteResponse::from_json(&json_data)))
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1128:28
[INFO] [stdout]      |
[INFO] [stdout] 1128 |             let num_read = try!(stream.read(buf));
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/marionette.rs:1139:20
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 '0'...'9' => {
[INFO] [stdout]      |                    ^^^ help: use `..=` for an inclusive range
[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(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1153:28
[INFO] [stdout]      |
[INFO] [stdout] 1153 |             let num_read = try!(stream.read(buf));
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1266:52
[INFO] [stdout]      |
[INFO] [stdout] 1266 |             Nullable::Value(ref x) => Json::Object(try!(x.to_marionette()))
[INFO] [stdout]      |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/marionette.rs:1296:65
[INFO] [stdout]      |
[INFO] [stdout] 1296 | ...                   Json::Object(try!(x.to_marionette()))),
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/marionette.rs:55:1
[INFO] [stdout]     |
[INFO] [stdout] 55  | / lazy_static! {
[INFO] [stdout] 56  | |     pub static ref E10S_PREFERENCES: [(&'static str, Pref); 1] = [
[INFO] [stdout] 57  | |         ("browser.tabs.remote.autostart", Pref::new(true)),
[INFO] [stdout] 58  | |     ];
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |     ];
[INFO] [stdout] 120 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/marionette.rs:274:50
[INFO] [stdout]     |
[INFO] [stdout] 274 | ...                   e.description().to_owned()));
[INFO] [stdout]     |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/marionette.rs:274:50
[INFO] [stdout]     |
[INFO] [stdout] 274 | ...                   e.description().to_owned()));
[INFO] [stdout]     |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/marionette.rs:1030:58
[INFO] [stdout]      |
[INFO] [stdout] 1030 | ...                   e.description().to_owned()));
[INFO] [stdout]      |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/marionette.rs:1030:58
[INFO] [stdout]      |
[INFO] [stdout] 1030 | ...                   e.description().to_owned()));
[INFO] [stdout]      |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/marionette.rs:1125:13
[INFO] [stdout]      |
[INFO] [stdout] 1125 |         let mut stream = self.stream.as_mut().unwrap();
[INFO] [stdout]      |             ----^^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/marionette.rs:1127:17
[INFO] [stdout]      |
[INFO] [stdout] 1127 |             let mut buf = &mut [0 as u8];
[INFO] [stdout]      |                 ----^^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/marionette.rs:1149:13
[INFO] [stdout]      |
[INFO] [stdout] 1149 |         let mut buf = &mut [0 as u8; 8192];
[INFO] [stdout]      |             ----^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/marionette.rs:1125:13
[INFO] [stdout]      |
[INFO] [stdout] 1125 |         let mut stream = self.stream.as_mut().unwrap();
[INFO] [stdout]      |             ----^^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/marionette.rs:1127:17
[INFO] [stdout]      |
[INFO] [stdout] 1127 |             let mut buf = &mut [0 as u8];
[INFO] [stdout]      |                 ----^^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/marionette.rs:1149:13
[INFO] [stdout]      |
[INFO] [stdout] 1149 |         let mut buf = &mut [0 as u8; 8192];
[INFO] [stdout]      |             ----^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 66 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 66 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wires` (bin "wires") due to 5 previous errors; 66 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `wires` (bin "wires" test) due to 5 previous errors; 66 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5ee669acd51a56aeb931a24d39d090e2665de80c373d958a3db42c470d45328a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ee669acd51a56aeb931a24d39d090e2665de80c373d958a3db42c470d45328a", kill_on_drop: false }`
[INFO] [stdout] 5ee669acd51a56aeb931a24d39d090e2665de80c373d958a3db42c470d45328a