[INFO] fetching crate fg-uds 0.3.0...
[INFO] building fg-uds-0.3.0 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate fg-uds 0.3.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate fg-uds 0.3.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fg-uds 0.3.0
[INFO] finished tweaking crates.io crate fg-uds 0.3.0
[INFO] tweaked toml for crates.io crate fg-uds 0.3.0 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded glib-sys v0.6.0
[INFO] [stderr]   Downloaded nix v0.9.0
[INFO] [stderr]   Downloaded gobject-sys v0.6.0
[INFO] [stderr]   Downloaded futures-glib v0.4.0
[INFO] [stderr]   Downloaded gio-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f80898e4e85f620e06a607572cc376c4253ed43e4beda0b64ace01eb87e65e30
[INFO] running `Command { std: "docker" "start" "-a" "f80898e4e85f620e06a607572cc376c4253ed43e4beda0b64ace01eb87e65e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f80898e4e85f620e06a607572cc376c4253ed43e4beda0b64ace01eb87e65e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f80898e4e85f620e06a607572cc376c4253ed43e4beda0b64ace01eb87e65e30", kill_on_drop: false }`
[INFO] [stdout] f80898e4e85f620e06a607572cc376c4253ed43e4beda0b64ace01eb87e65e30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aacf93c5b2fdcb4022ed62fbb23b99076ed259dbc4ae6d60dbb616f24d944c0b
[INFO] running `Command { std: "docker" "start" "-a" "aacf93c5b2fdcb4022ed62fbb23b99076ed259dbc4ae6d60dbb616f24d944c0b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling glib-sys v0.6.0
[INFO] [stderr]    Compiling gobject-sys v0.6.0
[INFO] [stderr]    Compiling gio-sys v0.6.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling futures-glib v0.4.0
[INFO] [stderr]    Compiling fg-uds v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/socket.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             try!(cvt(libc::ioctl(fd.fd, libc::FIOCLEX)));
[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/socket.rs:43:35
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let fd = Socket { fd: try!(cvt(libc::socket(libc::AF_UNIX, ty, 0))) };
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:82:44
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let addr: libc::sockaddr_un = mem::uninitialized();
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fd`
[INFO] [stdout]   --> src/socket.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn fd(&self) -> c_int {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_fd`
[INFO] [stdout]   --> src/socket.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn into_fd(self) -> c_int {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     channel.set_encoding(None); // TODO: check error.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.06s
[INFO] running `Command { std: "docker" "inspect" "aacf93c5b2fdcb4022ed62fbb23b99076ed259dbc4ae6d60dbb616f24d944c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aacf93c5b2fdcb4022ed62fbb23b99076ed259dbc4ae6d60dbb616f24d944c0b", kill_on_drop: false }`
[INFO] [stdout] aacf93c5b2fdcb4022ed62fbb23b99076ed259dbc4ae6d60dbb616f24d944c0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c700f047badc8d691e6f4c4dcae494ec6c7f94838138bd3f9e0221f3edc42f91
[INFO] running `Command { std: "docker" "start" "-a" "c700f047badc8d691e6f4c4dcae494ec6c7f94838138bd3f9e0221f3edc42f91", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fg-uds v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/socket.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             try!(cvt(libc::ioctl(fd.fd, libc::FIOCLEX)));
[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/socket.rs:43:35
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let fd = Socket { fd: try!(cvt(libc::socket(libc::AF_UNIX, ty, 0))) };
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:82:44
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let addr: libc::sockaddr_un = mem::uninitialized();
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fd`
[INFO] [stdout]   --> src/socket.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn fd(&self) -> c_int {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_fd`
[INFO] [stdout]   --> src/socket.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn into_fd(self) -> c_int {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     channel.set_encoding(None); // TODO: check error.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedRead`: Moved to tokio-codec
[INFO] [stdout]   --> examples/abstract.rs:16:41
[INFO] [stdout]    |
[INFO] [stdout] 16 | use tokio_io::codec::{Decoder, Encoder, FramedRead, FramedWrite};
[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/socket.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             try!(cvt(libc::ioctl(fd.fd, libc::FIOCLEX)));
[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/socket.rs:43:35
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let fd = Socket { fd: try!(cvt(libc::socket(libc::AF_UNIX, ty, 0))) };
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]   --> examples/abstract.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 | use tokio_io::codec::{Decoder, Encoder, FramedRead, FramedWrite};
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]   --> examples/abstract.rs:73:37
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut framed_writer = FramedWrite::new(writer, LineCodec);
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedRead`: Moved to tokio-codec
[INFO] [stdout]   --> examples/abstract.rs:74:33
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let framed_reader = FramedRead::new(reader, LineCodec);
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]   --> examples/abstract.rs:97:37
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 let framed_writer = FramedWrite::new(writer, LineCodec);
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedRead`: Moved to tokio-codec
[INFO] [stdout]   --> examples/abstract.rs:98:37
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let framed_reader = FramedRead::new(reader, LineCodec);
[INFO] [stdout]    |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedRead`: Moved to tokio-codec
[INFO] [stdout]   --> examples/named-splitted.rs:17:41
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio_io::codec::{Decoder, Encoder, FramedRead, FramedWrite};
[INFO] [stdout]    |                                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]   --> examples/named-splitted.rs:17:53
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio_io::codec::{Decoder, Encoder, FramedRead, FramedWrite};
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]   --> examples/named-splitted.rs:75:37
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut framed_writer = FramedWrite::new(writer, LineCodec);
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedRead`: Moved to tokio-codec
[INFO] [stdout]   --> examples/named-splitted.rs:76:33
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let framed_reader = FramedRead::new(reader, LineCodec);
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedWrite`: Moved to tokio-codec
[INFO] [stdout]   --> examples/named-splitted.rs:99:37
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 let framed_writer = FramedWrite::new(writer, LineCodec);
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `tokio_io::codec::FramedRead`: Moved to tokio-codec
[INFO] [stdout]    --> examples/named-splitted.rs:100:37
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 let framed_reader = FramedRead::new(reader, LineCodec);
[INFO] [stdout]     |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tokio_io::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]   --> examples/named.rs:83:40
[INFO] [stdout]    |
[INFO] [stdout] 83 |                     let frame = stream.framed(LineCodec);
[INFO] [stdout]    |                                        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `tokio_io::AsyncRead::framed`: Use tokio_codec::Decoder::framed instead
[INFO] [stdout]    --> examples/named.rs:102:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |             Ok(stream2.framed(LineCodec))
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/lib.rs:82:44
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let addr: libc::sockaddr_un = mem::uninitialized();
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/named.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             sender.send(true);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fd`
[INFO] [stdout]   --> src/socket.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn fd(&self) -> c_int {
[INFO] [stdout]    |            ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_fd`
[INFO] [stdout]   --> src/socket.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn into_fd(self) -> c_int {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     channel.set_encoding(None); // TODO: check error.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "c700f047badc8d691e6f4c4dcae494ec6c7f94838138bd3f9e0221f3edc42f91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c700f047badc8d691e6f4c4dcae494ec6c7f94838138bd3f9e0221f3edc42f91", kill_on_drop: false }`
[INFO] [stdout] c700f047badc8d691e6f4c4dcae494ec6c7f94838138bd3f9e0221f3edc42f91