[INFO] fetching crate mai 0.1.0...
[INFO] testing mai-0.1.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate mai 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mai 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mai 0.1.0
[INFO] finished tweaking crates.io crate mai 0.1.0
[INFO] tweaked toml for crates.io crate mai 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slab v0.1.3
[INFO] [stderr]   Downloaded bytes v0.3.0
[INFO] [stderr]   Downloaded miow v0.1.5
[INFO] [stderr]   Downloaded mio v0.5.1
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded lifeguard v0.5.2
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83a3ecc804aa7d096a1cc3535f98918760132159f87dfdc19db16977e9422971
[INFO] running `Command { std: "docker" "start" "-a" "83a3ecc804aa7d096a1cc3535f98918760132159f87dfdc19db16977e9422971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83a3ecc804aa7d096a1cc3535f98918760132159f87dfdc19db16977e9422971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83a3ecc804aa7d096a1cc3535f98918760132159f87dfdc19db16977e9422971", kill_on_drop: false }`
[INFO] [stdout] 83a3ecc804aa7d096a1cc3535f98918760132159f87dfdc19db16977e9422971
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c06e621f8e0dabca482e697e878a5c542a9624b09031650ad0b255b860d28b
[INFO] running `Command { std: "docker" "start" "-a" "41c06e621f8e0dabca482e697e878a5c542a9624b09031650ad0b255b860d28b", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling lifeguard v0.5.2
[INFO] [stderr]    Compiling net2 v0.2.38
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling mai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/evented_frame_stream.rs:211:7
[INFO] [stdout]     |
[INFO] [stdout] 211 |       try!(self.register_interest_in_writing(event_loop, token))
[INFO] [stdout]     |       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/codec.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 |   fn encode(&mut self, frame: &F, &mut [u8]) -> EncodingResult;
[INFO] [stdout]    |                                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut [u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/codec.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |   fn decode(&mut self, &[u8]) -> DecodingResult<F>;
[INFO] [stdout]    |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/evented_byte_stream.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 |   fn read_into_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stdout]   |                                  ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/evented_byte_stream.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn write_from_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stdout]   |                                   ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/settings.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |   fn set_option(self, T) -> T;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/protocol_engine.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Recycleable`
[INFO] [stdout]  --> src/protocol_engine.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Evented`
[INFO] [stdout]  --> src/protocol_engine.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mio::{Evented, EventSet, PollOpt, Token};
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/protocol_engine.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/evented_frame_stream.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let mut outbox = self.outbox(outbox_pool);
[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/protocol_engine.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[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/protocol_engine.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |        let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:133:22
[INFO] [stdout]     |
[INFO] [stdout] 133 |        let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[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/protocol_engine.rs:216:18
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:216:27
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:531:26
[INFO] [stdout]     |
[INFO] [stdout] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
[INFO] [stdout]     |                          ----^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `Command { std: "docker" "inspect" "41c06e621f8e0dabca482e697e878a5c542a9624b09031650ad0b255b860d28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c06e621f8e0dabca482e697e878a5c542a9624b09031650ad0b255b860d28b", kill_on_drop: false }`
[INFO] [stdout] 41c06e621f8e0dabca482e697e878a5c542a9624b09031650ad0b255b860d28b
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f729a059e71d641390e185e3f4a479c256ae3addf4b64ab2ff9d472b72ea49ee
[INFO] running `Command { std: "docker" "start" "-a" "f729a059e71d641390e185e3f4a479c256ae3addf4b64ab2ff9d472b72ea49ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling mai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/evented_frame_stream.rs:211:7
[INFO] [stdout]     |
[INFO] [stdout] 211 |       try!(self.register_interest_in_writing(event_loop, token))
[INFO] [stdout]     |       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/codec.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 |   fn encode(&mut self, frame: &F, &mut [u8]) -> EncodingResult;
[INFO] [stdout]    |                                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut [u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/codec.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |   fn decode(&mut self, &[u8]) -> DecodingResult<F>;
[INFO] [stdout]    |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/evented_byte_stream.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 |   fn read_into_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stdout]   |                                  ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/evented_byte_stream.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn write_from_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stdout]   |                                   ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/settings.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |   fn set_option(self, T) -> T;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/protocol_engine.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Recycleable`
[INFO] [stdout]  --> src/protocol_engine.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Evented`
[INFO] [stdout]  --> src/protocol_engine.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mio::{Evented, EventSet, PollOpt, Token};
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/protocol_engine.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/evented_frame_stream.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let mut outbox = self.outbox(outbox_pool);
[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/protocol_engine.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[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/protocol_engine.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |        let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:133:22
[INFO] [stdout]     |
[INFO] [stdout] 133 |        let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[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/protocol_engine.rs:216:18
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:216:27
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:531:26
[INFO] [stdout]     |
[INFO] [stdout] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
[INFO] [stdout]     |                          ----^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/evented_frame_stream.rs:211:7
[INFO] [stdout]     |
[INFO] [stdout] 211 |       try!(self.register_interest_in_writing(event_loop, token))
[INFO] [stdout]     |       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/codec.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 |   fn encode(&mut self, frame: &F, &mut [u8]) -> EncodingResult;
[INFO] [stdout]    |                                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut [u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/codec.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |   fn decode(&mut self, &[u8]) -> DecodingResult<F>;
[INFO] [stdout]    |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/evented_byte_stream.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 |   fn read_into_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stdout]   |                                  ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/evented_byte_stream.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn write_from_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stdout]   |                                   ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/settings.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |   fn set_option(self, T) -> T;
[INFO] [stdout]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/protocol_engine.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Recycleable`
[INFO] [stdout]  --> src/protocol_engine.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Evented`
[INFO] [stdout]  --> src/protocol_engine.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use mio::{Evented, EventSet, PollOpt, Token};
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/protocol_engine.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/evented_frame_stream.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let mut outbox = self.outbox(outbox_pool);
[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/protocol_engine.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[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/protocol_engine.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |        let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:133:22
[INFO] [stdout]     |
[INFO] [stdout] 133 |        let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[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/protocol_engine.rs:216:18
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:216:27
[INFO] [stdout]     |
[INFO] [stdout] 216 |             let (mut efs, mut session) = stream_session.components();
[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/protocol_engine.rs:531:26
[INFO] [stdout]     |
[INFO] [stdout] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
[INFO] [stdout]     |                          ----^^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "f729a059e71d641390e185e3f4a479c256ae3addf4b64ab2ff9d472b72ea49ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f729a059e71d641390e185e3f4a479c256ae3addf4b64ab2ff9d472b72ea49ee", kill_on_drop: false }`
[INFO] [stdout] f729a059e71d641390e185e3f4a479c256ae3addf4b64ab2ff9d472b72ea49ee
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 159fec5cf9fc27ea7cd62e51041df3d0a76323bf471c8cd02f2ef72f9d4fc2f9
[INFO] running `Command { std: "docker" "start" "-a" "159fec5cf9fc27ea7cd62e51041df3d0a76323bf471c8cd02f2ef72f9d4fc2f9", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/evented_frame_stream.rs:211:7
[INFO] [stderr]     |
[INFO] [stderr] 211 |       try!(self.register_interest_in_writing(event_loop, token))
[INFO] [stderr]     |       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/codec.rs:54:35
[INFO] [stderr]    |
[INFO] [stderr] 54 |   fn encode(&mut self, frame: &F, &mut [u8]) -> EncodingResult;
[INFO] [stderr]    |                                   ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut [u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/codec.rs:55:24
[INFO] [stderr]    |
[INFO] [stderr] 55 |   fn decode(&mut self, &[u8]) -> DecodingResult<F>;
[INFO] [stderr]    |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/evented_byte_stream.rs:7:34
[INFO] [stderr]   |
[INFO] [stderr] 7 |   fn read_into_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stderr]   |                                  ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/evented_byte_stream.rs:8:35
[INFO] [stderr]   |
[INFO] [stderr] 8 |   fn write_from_buffer(&mut self, &mut Buffer) -> io::Result<usize>;
[INFO] [stderr]   |                                   ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Buffer`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/settings.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 |   fn set_option(self, T) -> T;
[INFO] [stderr]   |                       ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/protocol_engine.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{self, Read, Write};
[INFO] [stderr]   |                           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Recycleable`
[INFO] [stderr]  --> src/protocol_engine.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
[INFO] [stderr]   |                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Evented`
[INFO] [stderr]  --> src/protocol_engine.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/protocol_engine.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{self, Read, Write};
[INFO] [stderr]   |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/evented_frame_stream.rs:215:9
[INFO] [stderr]     |
[INFO] [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[INFO] [stderr]     |            ----^^^^^^^^^^^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:133:13
[INFO] [stderr]     |
[INFO] [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:133:22
[INFO] [stderr]     |
[INFO] [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
[INFO] [stderr]     |                      ----^^^^^^^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:215:17
[INFO] [stderr]     |
[INFO] [stderr] 215 |             let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:216:18
[INFO] [stderr]     |
[INFO] [stderr] 216 |             let (mut efs, mut session) = stream_session.components();
[INFO] [stderr]     |                  ----^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:216:27
[INFO] [stderr]     |
[INFO] [stderr] 216 |             let (mut efs, mut session) = stream_session.components();
[INFO] [stderr]     |                           ----^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol_engine.rs:531:26
[INFO] [stderr]     |
[INFO] [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
[INFO] [stderr]     |                          ----^^^^^^^^^^^^
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `mai` (lib) generated 18 warnings (run `cargo fix --lib -p mai` to apply 13 suggestions)
[INFO] [stderr] warning: `mai` (lib test) generated 18 warnings (18 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mai-f88ebf3d0ecca9ed)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-04f3646557bc4506)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_restack_everything_consumed ... ok
[INFO] [stdout] test tests::test_restack ... ok
[INFO] [stdout] test tests::test_restack_nothing_consumed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mai
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "159fec5cf9fc27ea7cd62e51041df3d0a76323bf471c8cd02f2ef72f9d4fc2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "159fec5cf9fc27ea7cd62e51041df3d0a76323bf471c8cd02f2ef72f9d4fc2f9", kill_on_drop: false }`
[INFO] [stdout] 159fec5cf9fc27ea7cd62e51041df3d0a76323bf471c8cd02f2ef72f9d4fc2f9
