[INFO] fetching crate hiirc 0.5.0...
[INFO] testing hiirc-0.5.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate hiirc 0.5.0 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate hiirc 0.5.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hiirc 0.5.0
[INFO] finished tweaking crates.io crate hiirc 0.5.0
[INFO] tweaked toml for crates.io crate hiirc 0.5.0 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef5a3aeefe2886b2bc6af708b45a3e5375da1f22bad15bfb86cdbda1bdff0ebc
[INFO] running `Command { std: "docker" "start" "-a" "ef5a3aeefe2886b2bc6af708b45a3e5375da1f22bad15bfb86cdbda1bdff0ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef5a3aeefe2886b2bc6af708b45a3e5375da1f22bad15bfb86cdbda1bdff0ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef5a3aeefe2886b2bc6af708b45a3e5375da1f22bad15bfb86cdbda1bdff0ebc", kill_on_drop: false }`
[INFO] [stdout] ef5a3aeefe2886b2bc6af708b45a3e5375da1f22bad15bfb86cdbda1bdff0ebc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d98abf3d301834edb4ce167b0e8a0beb4804967cad1d4b0e84c8acb6de294bae
[INFO] running `Command { std: "docker" "start" "-a" "d98abf3d301834edb4ce167b0e8a0beb4804967cad1d4b0e84c8acb6de294bae", kill_on_drop: false }`
[INFO] [stderr]    Compiling loirc v0.2.0
[INFO] [stderr]    Compiling hiirc v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:360:9
[INFO] [stdout]     |
[INFO] [stdout] 360 |         try!(self.writer.close());
[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/core.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         try!(self.writer.raw(format!("{}\n", raw)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:465:28
[INFO] [stdout]     |
[INFO] [stdout] 465 |     let (writer, reader) = try!(connect(settings.addr, settings.reconnection, settings.encoding));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |         try!(irc.pass(settings.password));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     try!(irc.nick(settings.nickname));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:472:5
[INFO] [stdout]     |
[INFO] [stdout] 472 |     try!(irc.user(settings.username, settings.realname));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:490:19
[INFO] [stdout]     |
[INFO] [stdout] 490 |     listener: Box<Listener + 'a>,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Listener + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/core.rs:69:44
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Error::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "d98abf3d301834edb4ce167b0e8a0beb4804967cad1d4b0e84c8acb6de294bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98abf3d301834edb4ce167b0e8a0beb4804967cad1d4b0e84c8acb6de294bae", kill_on_drop: false }`
[INFO] [stdout] d98abf3d301834edb4ce167b0e8a0beb4804967cad1d4b0e84c8acb6de294bae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b654d3d4650d200a5b3d4528b8762c82783eeadb53ea29313718e14456dcef7a
[INFO] running `Command { std: "docker" "start" "-a" "b654d3d4650d200a5b3d4528b8762c82783eeadb53ea29313718e14456dcef7a", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:360:9
[INFO] [stdout]     |
[INFO] [stdout] 360 |         try!(self.writer.close());
[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/core.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         try!(self.writer.raw(format!("{}\n", raw)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:465:28
[INFO] [stdout]     |
[INFO] [stdout] 465 |     let (writer, reader) = try!(connect(settings.addr, settings.reconnection, settings.encoding));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |         try!(irc.pass(settings.password));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     try!(irc.nick(settings.nickname));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:472:5
[INFO] [stdout]     |
[INFO] [stdout] 472 |     try!(irc.user(settings.username, settings.realname));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:490:19
[INFO] [stdout]     |
[INFO] [stdout] 490 |     listener: Box<Listener + 'a>,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Listener + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/core.rs:69:44
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Error::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hiirc v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:74:32
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:360:9
[INFO] [stdout]     |
[INFO] [stdout] 360 |         try!(self.writer.close());
[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/core.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         try!(self.writer.raw(format!("{}\n", raw)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:465:28
[INFO] [stdout]     |
[INFO] [stdout] 465 |     let (writer, reader) = try!(connect(settings.addr, settings.reconnection, settings.encoding));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |         try!(irc.pass(settings.password));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     try!(irc.nick(settings.nickname));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core.rs:472:5
[INFO] [stdout]     |
[INFO] [stdout] 472 |     try!(irc.user(settings.username, settings.realname));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/core.rs:490:19
[INFO] [stdout]     |
[INFO] [stdout] 490 |     listener: Box<Listener + 'a>,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Listener + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/core.rs:69:44
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Error::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "b654d3d4650d200a5b3d4528b8762c82783eeadb53ea29313718e14456dcef7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b654d3d4650d200a5b3d4528b8762c82783eeadb53ea29313718e14456dcef7a", kill_on_drop: false }`
[INFO] [stdout] b654d3d4650d200a5b3d4528b8762c82783eeadb53ea29313718e14456dcef7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 257dd9c7724a3090bb58f6657103d4ebf62f107fcc015a34353dab6855325319
[INFO] running `Command { std: "docker" "start" "-a" "257dd9c7724a3090bb58f6657103d4ebf62f107fcc015a34353dab6855325319", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core.rs:74:32
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:360:9
[INFO] [stderr]     |
[INFO] [stderr] 360 |         try!(self.writer.close());
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |         try!(self.writer.raw(format!("{}\n", raw)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:465:28
[INFO] [stderr]     |
[INFO] [stderr] 465 |     let (writer, reader) = try!(connect(settings.addr, settings.reconnection, settings.encoding));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 |         try!(irc.pass(settings.password));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:471:5
[INFO] [stderr]     |
[INFO] [stderr] 471 |     try!(irc.nick(settings.nickname));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:472:5
[INFO] [stderr]     |
[INFO] [stderr] 472 |     try!(irc.user(settings.username, settings.realname));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core.rs:490:19
[INFO] [stderr]     |
[INFO] [stderr] 490 |     listener: Box<Listener + 'a>,
[INFO] [stderr]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Listener + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/core.rs:69:44
[INFO] [stderr]    |
[INFO] [stderr] 69 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core.rs:74:32
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:360:9
[INFO] [stderr]     |
[INFO] [stderr] 360 |         try!(self.writer.close());
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |         try!(self.writer.raw(format!("{}\n", raw)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:465:28
[INFO] [stderr]     |
[INFO] [stderr] 465 |     let (writer, reader) = try!(connect(settings.addr, settings.reconnection, settings.encoding));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 |         try!(irc.pass(settings.password));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:471:5
[INFO] [stderr]     |
[INFO] [stderr] 471 |     try!(irc.nick(settings.nickname));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core.rs:472:5
[INFO] [stderr]     |
[INFO] [stderr] 472 |     try!(irc.user(settings.username, settings.realname));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core.rs:490:19
[INFO] [stderr]     |
[INFO] [stderr] 490 |     listener: Box<Listener + 'a>,
[INFO] [stderr]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Listener + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/core.rs:69:44
[INFO] [stderr]    |
[INFO] [stderr] 69 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hiirc-cc6856416f241a93)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test core::test_channel ... ok
[INFO] [stdout] test core::test_user_from_raw_norm ... ok
[INFO] [stdout] test core::test_user_from_raw_op ... ok
[INFO] [stdout] test core::test_user_from_raw_owner ... ok
[INFO] [stdout] test core::test_user_from_raw_voice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hiirc
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/settings.rs - settings::Settings::new (line 37) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "257dd9c7724a3090bb58f6657103d4ebf62f107fcc015a34353dab6855325319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "257dd9c7724a3090bb58f6657103d4ebf62f107fcc015a34353dab6855325319", kill_on_drop: false }`
[INFO] [stdout] 257dd9c7724a3090bb58f6657103d4ebf62f107fcc015a34353dab6855325319
