[INFO] fetching crate condure 1.3.1...
[INFO] checking condure-1.3.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate condure 1.3.1 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate condure 1.3.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate condure 1.3.1
[INFO] finished tweaking crates.io crate condure 1.3.1
[INFO] tweaked toml for crates.io crate condure 1.3.1 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate condure 1.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c9053e8b8e836a2cd93e621d89364254ffdc0f4ae8436f0e9690ee55afa5a9d
[INFO] running `Command { std: "docker" "start" "-a" "4c9053e8b8e836a2cd93e621d89364254ffdc0f4ae8436f0e9690ee55afa5a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c9053e8b8e836a2cd93e621d89364254ffdc0f4ae8436f0e9690ee55afa5a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9053e8b8e836a2cd93e621d89364254ffdc0f4ae8436f0e9690ee55afa5a9d", kill_on_drop: false }`
[INFO] [stdout] 4c9053e8b8e836a2cd93e621d89364254ffdc0f4ae8436f0e9690ee55afa5a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a4758de768bd6cf4fd9122a79a077ce33faf8bc8d4d36db9e818b0d8120881c
[INFO] running `Command { std: "docker" "start" "-a" "5a4758de768bd6cf4fd9122a79a077ce33faf8bc8d4d36db9e818b0d8120881c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling semver v1.0.3
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[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking plotters-backend v0.3.2
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[INFO] [stderr]    Compiling metadeps v1.1.2
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[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling zmq-sys v0.11.0
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[INFO] [stderr]     Checking csv-core v0.1.10
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[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_cbor v0.11.1
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[INFO] [stderr]     Checking condure v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         &dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 216 |         let _ = &dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             &mut tmp[..lsize].copy_from_slice(&self.buf[lsrc..(lsrc + lsize)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 383 |             let _ = &mut tmp[..lsize].copy_from_slice(&self.buf[lsrc..(lsrc + lsize)]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |             &mut self.buf[ldest..(ldest + lsize)].copy_from_slice(&mut tmp[..lsize]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 385 |             let _ = &mut self.buf[ldest..(ldest + lsize)].copy_from_slice(&mut tmp[..lsize]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:427:13
[INFO] [stdout]     |
[INFO] [stdout] 427 |             &dest[..size].copy_from_slice(&buf[pos..(pos + size)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 427 |             let _ = &dest[..size].copy_from_slice(&buf[pos..(pos + size)]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:1658:25
[INFO] [stdout]      |
[INFO] [stdout] 1658 |                         &mut input[..ws_key.len()].copy_from_slice(ws_key);
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1658 |                         let _ = &mut input[..ws_key.len()].copy_from_slice(ws_key);
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:1659:25
[INFO] [stdout]      |
[INFO] [stdout] 1659 | /                         &mut input[ws_key.len()..input_len]
[INFO] [stdout] 1660 | |                             .copy_from_slice(&websocket::WS_GUID.as_bytes());
[INFO] [stdout]      | |____________________________________________________________________________^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1659 |                         let _ = &mut input[ws_key.len()..input_len]
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:2018:29
[INFO] [stdout]      |
[INFO] [stdout] 2018 | ...                   &mut arr[..].copy_from_slice(&body[..2]);
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 2018 |                             let _ = &mut arr[..].copy_from_slice(&body[..2]);
[INFO] [stdout]      |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         &buf[2..4].copy_from_slice(&arr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = &buf[2..4].copy_from_slice(&arr);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         &buf[2..10].copy_from_slice(&arr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let _ = &buf[2..10].copy_from_slice(&arr);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         &buf[hsize..hsize + 4].copy_from_slice(&mask);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let _ = &buf[hsize..hsize + 4].copy_from_slice(&mask);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 481 |         &mut dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 481 |         let _ = &mut dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         &dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 216 |         let _ = &dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             &mut tmp[..lsize].copy_from_slice(&self.buf[lsrc..(lsrc + lsize)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 383 |             let _ = &mut tmp[..lsize].copy_from_slice(&self.buf[lsrc..(lsrc + lsize)]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |             &mut self.buf[ldest..(ldest + lsize)].copy_from_slice(&mut tmp[..lsize]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 385 |             let _ = &mut self.buf[ldest..(ldest + lsize)].copy_from_slice(&mut tmp[..lsize]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:427:13
[INFO] [stdout]     |
[INFO] [stdout] 427 |             &dest[..size].copy_from_slice(&buf[pos..(pos + size)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 427 |             let _ = &dest[..size].copy_from_slice(&buf[pos..(pos + size)]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:1658:25
[INFO] [stdout]      |
[INFO] [stdout] 1658 |                         &mut input[..ws_key.len()].copy_from_slice(ws_key);
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1658 |                         let _ = &mut input[..ws_key.len()].copy_from_slice(ws_key);
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:1659:25
[INFO] [stdout]      |
[INFO] [stdout] 1659 | /                         &mut input[ws_key.len()..input_len]
[INFO] [stdout] 1660 | |                             .copy_from_slice(&websocket::WS_GUID.as_bytes());
[INFO] [stdout]      | |____________________________________________________________________________^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1659 |                         let _ = &mut input[ws_key.len()..input_len]
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:2018:29
[INFO] [stdout]      |
[INFO] [stdout] 2018 | ...                   &mut arr[..].copy_from_slice(&body[..2]);
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 2018 |                             let _ = &mut arr[..].copy_from_slice(&body[..2]);
[INFO] [stdout]      |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         &buf[2..4].copy_from_slice(&arr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = &buf[2..4].copy_from_slice(&arr);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         &buf[2..10].copy_from_slice(&arr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let _ = &buf[2..10].copy_from_slice(&arr);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         &buf[hsize..hsize + 4].copy_from_slice(&mask);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let _ = &buf[hsize..hsize + 4].copy_from_slice(&mask);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 481 |         &mut dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 481 |         let _ = &mut dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: field is never read: `trailing_headers`
[INFO] [stdout]    --> src/http1.rs:745:9
[INFO] [stdout]     |
[INFO] [stdout] 745 |         pub trailing_headers: Vec<(String, Vec<u8>)>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/arena.rs:536:9
[INFO] [stdout]     |
[INFO] [stdout] 536 |         &mut buf1[..5].copy_from_slice(b"hello");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 536 |         let _ = &mut buf1[..5].copy_from_slice(b"hello");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/arena.rs:537:9
[INFO] [stdout]     |
[INFO] [stdout] 537 |         &mut buf2[..5].copy_from_slice(b"world");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 537 |         let _ = &mut buf2[..5].copy_from_slice(b"world");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         &buf[..size].copy_from_slice(&src[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let _ = &buf[..size].copy_from_slice(&src[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         &dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 216 |         let _ = &dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             &mut tmp[..lsize].copy_from_slice(&self.buf[lsrc..(lsrc + lsize)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 383 |             let _ = &mut tmp[..lsize].copy_from_slice(&self.buf[lsrc..(lsrc + lsize)]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |             &mut self.buf[ldest..(ldest + lsize)].copy_from_slice(&mut tmp[..lsize]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 385 |             let _ = &mut self.buf[ldest..(ldest + lsize)].copy_from_slice(&mut tmp[..lsize]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:404:13
[INFO] [stdout]     |
[INFO] [stdout] 404 |             &buf[pos..(pos + size)].copy_from_slice(&src[..size]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 404 |             let _ = &buf[pos..(pos + size)].copy_from_slice(&src[..size]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/buffer.rs:427:13
[INFO] [stdout]     |
[INFO] [stdout] 427 |             &dest[..size].copy_from_slice(&buf[pos..(pos + size)]);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 427 |             let _ = &dest[..size].copy_from_slice(&buf[pos..(pos + size)]);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:1658:25
[INFO] [stdout]      |
[INFO] [stdout] 1658 |                         &mut input[..ws_key.len()].copy_from_slice(ws_key);
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1658 |                         let _ = &mut input[..ws_key.len()].copy_from_slice(ws_key);
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:1659:25
[INFO] [stdout]      |
[INFO] [stdout] 1659 | /                         &mut input[ws_key.len()..input_len]
[INFO] [stdout] 1660 | |                             .copy_from_slice(&websocket::WS_GUID.as_bytes());
[INFO] [stdout]      | |____________________________________________________________________________^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1659 |                         let _ = &mut input[ws_key.len()..input_len]
[INFO] [stdout]      |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:2018:29
[INFO] [stdout]      |
[INFO] [stdout] 2018 | ...                   &mut arr[..].copy_from_slice(&body[..2]);
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 2018 |                             let _ = &mut arr[..].copy_from_slice(&body[..2]);
[INFO] [stdout]      |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/connection.rs:2546:13
[INFO] [stdout]      |
[INFO] [stdout] 2546 |             &mut buf[..size].copy_from_slice(&self.inbuf[..size]);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 2546 |             let _ = &mut buf[..size].copy_from_slice(&self.inbuf[..size]);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/server.rs:3025:9
[INFO] [stdout]      |
[INFO] [stdout] 3025 |         &mut data[size..(size + body.len())].copy_from_slice(body);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 3025 |         let _ = &mut data[size..(size + body.len())].copy_from_slice(body);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/server.rs:3110:9
[INFO] [stdout]      |
[INFO] [stdout] 3110 |         &mut data[size..(size + body.len())].copy_from_slice(body);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 3110 |         let _ = &mut data[size..(size + body.len())].copy_from_slice(body);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]     --> src/server.rs:3185:9
[INFO] [stdout]      |
[INFO] [stdout] 3185 |         &mut data[size..(size + body.len())].copy_from_slice(body);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 3185 |         let _ = &mut data[size..(size + body.len())].copy_from_slice(body);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         &buf[2..4].copy_from_slice(&arr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = &buf[2..4].copy_from_slice(&arr);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         &buf[2..10].copy_from_slice(&arr);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let _ = &buf[2..10].copy_from_slice(&arr);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         &buf[hsize..hsize + 4].copy_from_slice(&mask);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let _ = &buf[hsize..hsize + 4].copy_from_slice(&mask);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 481 |         &mut dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 481 |         let _ = &mut dest[..size].copy_from_slice(&buf[..size]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/websocket.rs:600:9
[INFO] [stdout]     |
[INFO] [stdout] 600 |         &buf2[offset..offset + payload.len()].copy_from_slice(payload);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 600 |         let _ = &buf2[offset..offset + payload.len()].copy_from_slice(payload);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.44s
[INFO] running `Command { std: "docker" "inspect" "5a4758de768bd6cf4fd9122a79a077ce33faf8bc8d4d36db9e818b0d8120881c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a4758de768bd6cf4fd9122a79a077ce33faf8bc8d4d36db9e818b0d8120881c", kill_on_drop: false }`
[INFO] [stdout] 5a4758de768bd6cf4fd9122a79a077ce33faf8bc8d4d36db9e818b0d8120881c
