[INFO] fetching crate anneal 0.3.4...
[INFO] checking anneal-0.3.4 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate anneal 0.3.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate anneal 0.3.4 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "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-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 322daf537e364077416395fd15eed46c9d202cb287c4a61d671c114bd0fd3165
[INFO] running `Command { std: "docker" "start" "-a" "322daf537e364077416395fd15eed46c9d202cb287c4a61d671c114bd0fd3165", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "322daf537e364077416395fd15eed46c9d202cb287c4a61d671c114bd0fd3165", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36edb0dad49f034b80c1eb3c35f035e192ee8170c6e0ae1857b0c03830f4d13b
[INFO] running `Command { std: "docker" "start" "-a" "36edb0dad49f034b80c1eb3c35f035e192ee8170c6e0ae1857b0c03830f4d13b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rand_os v0.1.3
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[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
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[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking anneal v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     self,
[INFO] [stdout]    |     ^^^^ the item `hyper` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[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] 
[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: 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]     |                                                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let mut buff_read = BufReader::new(&mut serv_stream as &mut dyn NetworkStream);
[INFO] [stdout]     |                                                                     +++
[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: 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]     |                                                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let mut buff_read = BufReader::new(&mut serv_stream as &mut dyn NetworkStream);
[INFO] [stdout]     |                                                                     +++
[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: field `client_address` is never read
[INFO] [stdout]   --> src/lib.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct RequestBuilder {
[INFO] [stdout]    |            -------------- field in this struct
[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: struct `TestExtension` is never constructed
[INFO] [stdout]    --> src/response_examine.rs:262:16
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub struct TestExtension;
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[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: 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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let _ = rb.send(); 
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[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] 
[INFO] [stdout] warning: field `client_address` is never read
[INFO] [stdout]   --> src/lib.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct RequestBuilder {
[INFO] [stdout]    |            -------------- field in this struct
[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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |         let _ = rb.send(); 
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "36edb0dad49f034b80c1eb3c35f035e192ee8170c6e0ae1857b0c03830f4d13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36edb0dad49f034b80c1eb3c35f035e192ee8170c6e0ae1857b0c03830f4d13b", kill_on_drop: false }`
[INFO] [stdout] 36edb0dad49f034b80c1eb3c35f035e192ee8170c6e0ae1857b0c03830f4d13b
