[INFO] fetching crate anneal 0.3.4...
[INFO] building anneal-0.3.4 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate anneal 0.3.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate anneal 0.3.4 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate anneal 0.3.4
[INFO] finished tweaking crates.io crate anneal 0.3.4
[INFO] tweaked toml for crates.io crate anneal 0.3.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded japi v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dca3f4c3f4afdad16e013356387a79a8cb1b2aeec7db7cd079834cbf571b14de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dca3f4c3f4afdad16e013356387a79a8cb1b2aeec7db7cd079834cbf571b14de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dca3f4c3f4afdad16e013356387a79a8cb1b2aeec7db7cd079834cbf571b14de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dca3f4c3f4afdad16e013356387a79a8cb1b2aeec7db7cd079834cbf571b14de", kill_on_drop: false }`
[INFO] [stdout] dca3f4c3f4afdad16e013356387a79a8cb1b2aeec7db7cd079834cbf571b14de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fbb65216d20bd8187033f5ba70be5c4c2316fa8767ad5569a1eb3a3e2daf1d8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7fbb65216d20bd8187033f5ba70be5c4c2316fa8767ad5569a1eb3a3e2daf1d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.18
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling iron v0.6.1
[INFO] [stderr]    Compiling anneal v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IpAddr`, `Ipv4Addr`, `io::Cursor`
[INFO] [stdout]   --> src/lib.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     io::Cursor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 72 |     net::{
[INFO] [stdout] 73 |         IpAddr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 74 |         Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `url::Host`
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | use url::Host;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shutdown`
[INFO] [stdout]   --> src/transfer_connector.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         Shutdown,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ContentType`, `Cookie`, `Mime`, `SubLevel`, `TopLevel`
[INFO] [stdout]  --> src/response_examine.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |     headers::{Header, HeaderFormat, ContentType, Cookie},
[INFO] [stdout]   |                                     ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 4 |     mime::{Mime, TopLevel, SubLevel},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::RequestBuilder`
[INFO] [stdout]    --> src/response_examine.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |     use crate::RequestBuilder;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `headers::Expect`, `method::Method`, `modifiers::Header as ModHead`, `prelude::*`
[INFO] [stdout]    --> src/response_examine.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         method::Method,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 256 |         headers::Expect,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 257 |         prelude::*,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 258 |         modifiers::Header as ModHead,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:309:69
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let mut buff_read = BufReader::new(&mut serv_stream as &mut NetworkStream);
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[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: unused import: `WriteBody`
[INFO] [stdout]  --> src/response_examine.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     response::{Response, WriteBody},
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/transfer_connector.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/response_examine.rs:28:48
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let body = response.body.as_mut().map(|mut body| {
[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: field is never read: `client_address`
[INFO] [stdout]   --> src/lib.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 |     client_address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |         rb.send(); 
[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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.79s
[INFO] running `Command { std: "docker" "inspect" "7fbb65216d20bd8187033f5ba70be5c4c2316fa8767ad5569a1eb3a3e2daf1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fbb65216d20bd8187033f5ba70be5c4c2316fa8767ad5569a1eb3a3e2daf1d8", kill_on_drop: false }`
[INFO] [stdout] 7fbb65216d20bd8187033f5ba70be5c4c2316fa8767ad5569a1eb3a3e2daf1d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c37c8e51f3e49650c94eb3953d594bf01c1675e1f4e99df3ffb9d3c2f927badc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c37c8e51f3e49650c94eb3953d594bf01c1675e1f4e99df3ffb9d3c2f927badc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling anneal v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IpAddr`, `Ipv4Addr`, `io::Cursor`
[INFO] [stdout]   --> src/lib.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     io::Cursor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 72 |     net::{
[INFO] [stdout] 73 |         IpAddr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 74 |         Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `url::Host`
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | use url::Host;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shutdown`
[INFO] [stdout]   --> src/transfer_connector.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         Shutdown,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ContentType`, `Cookie`, `Mime`, `SubLevel`, `TopLevel`
[INFO] [stdout]  --> src/response_examine.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |     headers::{Header, HeaderFormat, ContentType, Cookie},
[INFO] [stdout]   |                                     ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 4 |     mime::{Mime, TopLevel, SubLevel},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::RequestBuilder`
[INFO] [stdout]    --> src/response_examine.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |     use crate::RequestBuilder;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `headers::Expect`, `method::Method`, `modifiers::Header as ModHead`, `prelude::*`
[INFO] [stdout]    --> src/response_examine.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         method::Method,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 256 |         headers::Expect,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 257 |         prelude::*,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 258 |         modifiers::Header as ModHead,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:309:69
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let mut buff_read = BufReader::new(&mut serv_stream as &mut NetworkStream);
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[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: unused import: `WriteBody`
[INFO] [stdout]  --> src/response_examine.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     response::{Response, WriteBody},
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/transfer_connector.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/response_examine.rs:28:48
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let body = response.body.as_mut().map(|mut body| {
[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: field is never read: `client_address`
[INFO] [stdout]   --> src/lib.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 |     client_address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |         rb.send(); 
[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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IpAddr`, `Ipv4Addr`, `io::Cursor`
[INFO] [stdout]   --> src/lib.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     io::Cursor,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 72 |     net::{
[INFO] [stdout] 73 |         IpAddr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 74 |         Ipv4Addr,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `url::Host`
[INFO] [stdout]   --> src/lib.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | use url::Host;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Shutdown`
[INFO] [stdout]   --> src/transfer_connector.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         Shutdown,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ContentType`, `Cookie`, `Mime`, `SubLevel`, `TopLevel`
[INFO] [stdout]  --> src/response_examine.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |     headers::{Header, HeaderFormat, ContentType, Cookie},
[INFO] [stdout]   |                                     ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 4 |     mime::{Mime, TopLevel, SubLevel},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:309:69
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let mut buff_read = BufReader::new(&mut serv_stream as &mut NetworkStream);
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[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: unused import: `WriteBody`
[INFO] [stdout]  --> src/response_examine.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 |     response::{Response, WriteBody},
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/transfer_connector.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:405:29
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 if let Some(mut tm) = req.extensions.get_mut::<TestMiddleware>() {
[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/response_examine.rs:28:48
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let body = response.body.as_mut().map(|mut body| {
[INFO] [stdout]    |                                                ----^^^^
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `client_address`
[INFO] [stdout]   --> src/lib.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 |     client_address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |         rb.send(); 
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "c37c8e51f3e49650c94eb3953d594bf01c1675e1f4e99df3ffb9d3c2f927badc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c37c8e51f3e49650c94eb3953d594bf01c1675e1f4e99df3ffb9d3c2f927badc", kill_on_drop: false }`
[INFO] [stdout] c37c8e51f3e49650c94eb3953d594bf01c1675e1f4e99df3ffb9d3c2f927badc
