[INFO] updating cached repository https://github.com/thelink2012/tupi
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 390b67fcc04324d98156223e0b391f6c8436f6ed
[INFO] checking thelink2012/tupi against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelink2012%2Ftupi" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thelink2012/tupi on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/thelink2012/tupi
[INFO] finished tweaking git repo https://github.com/thelink2012/tupi
[INFO] tweaked toml for git repo https://github.com/thelink2012/tupi written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/thelink2012/tupi already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d348d30e8a75eefac49cfa7b678cc8d780b4b4db24e4df08dbd1abd3deab7878
[INFO] running `"docker" "start" "-a" "d348d30e8a75eefac49cfa7b678cc8d780b4b4db24e4df08dbd1abd3deab7878"`
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking tupi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/http.rs:14:29
[INFO] [stderr]    |
[INFO] [stderr] 14 |     InternalServerError(Box<Error>),
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/http.rs:104:32
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:33:21
[INFO] [stderr]    |
[INFO] [stderr] 33 |     write_body: Box<Fn(&mut Write) -> io::Result<()>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write) -> io::Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |     write_body: Box<Fn(&mut Write) -> io::Result<()>>,
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:42:67
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn handle_connection(mut stream: TcpStream) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |         .map_err(Box::<Error>::from)
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:63:57
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn speak_http(mut stream: &TcpStream) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:68:54
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let clone = stream.try_clone().map_err(Box::<Error>::from)?;
[INFO] [stderr]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:98:30
[INFO] [stderr]    |
[INFO] [stderr] 98 |         .map_err(|err| Box::<Error>::from(err)) // still could not reply a error page
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:124:44
[INFO] [stderr]     |
[INFO] [stderr] 124 |         write_body: Box::new(|writer: &mut Write| writer.write(b"a").map(|_| ())),
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:170:48
[INFO] [stderr]     |
[INFO] [stderr] 170 |             write_body: Box::new(|writer: &mut Write| writer.write(b"a").map(|_| ())),
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]    --> src/lib.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     reader: &mut R,
[INFO] [stderr]     |     ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     writer: &mut W,
[INFO] [stderr]     |     ^^^^^^ help: consider prefixing with an underscore: `_writer`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:30:39
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn parse_request_line<R: BufRead>(mut reader: &mut R) -> HttpResult<HttpRequestLine> {
[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: method is never used: `query_raw`
[INFO] [stderr]   --> src/http.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn query_raw(&self, key: &str) -> Option<&[u8]> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `headers`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     headers: HttpHeaders,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test.rs:35:30
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn request(message: &mut Read) -> Option<Response> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/http.rs:14:29
[INFO] [stderr]    |
[INFO] [stderr] 14 |     InternalServerError(Box<Error>),
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/http.rs:104:32
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:33:21
[INFO] [stderr]    |
[INFO] [stderr] 33 |     write_body: Box<Fn(&mut Write) -> io::Result<()>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write) -> io::Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |     write_body: Box<Fn(&mut Write) -> io::Result<()>>,
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:42:67
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn handle_connection(mut stream: TcpStream) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |         .map_err(Box::<Error>::from)
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:63:57
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn speak_http(mut stream: &TcpStream) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test.rs:35:30
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn request(message: &mut Read) -> Option<Response> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> tests/version.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:68:54
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let clone = stream.try_clone().map_err(Box::<Error>::from)?;
[INFO] [stderr]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:98:30
[INFO] [stderr]    |
[INFO] [stderr] 98 |         .map_err(|err| Box::<Error>::from(err)) // still could not reply a error page
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:124:44
[INFO] [stderr]     |
[INFO] [stderr] 124 |         write_body: Box::new(|writer: &mut Write| writer.write(b"a").map(|_| ())),
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:170:48
[INFO] [stderr]     |
[INFO] [stderr] 170 |             write_body: Box::new(|writer: &mut Write| writer.write(b"a").map(|_| ())),
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/test.rs:35:30
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn request(message: &mut Read) -> Option<Response> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> tests/length.rs:102:18
[INFO] [stderr]     |
[INFO] [stderr] 102 |         for _ in (1..3000) {
[INFO] [stderr]     |                  ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/test.rs:11:48
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/test.rs:13:35
[INFO] [stderr]    |
[INFO] [stderr] 13 | static ATOMIC_PORT: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/test.rs:11:48
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/test.rs:13:35
[INFO] [stderr]    |
[INFO] [stderr] 13 | static ATOMIC_PORT: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/test.rs:11:48
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/test.rs:13:35
[INFO] [stderr]    |
[INFO] [stderr] 13 | static ATOMIC_PORT: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut payload = {
[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]   --> tests/test.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut mut_slice = message.as_mut_slice();
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             let mut linestr = str::from_utf8(&line).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]   --> tests/test.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut payload = {
[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]   --> tests/test.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut mut_slice = message.as_mut_slice();
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             let mut linestr = str::from_utf8(&line).unwrap();
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]    --> src/lib.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     reader: &mut R,
[INFO] [stderr]     |     ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `writer`
[INFO] [stderr]    --> src/lib.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     writer: &mut W,
[INFO] [stderr]     |     ^^^^^^ help: consider prefixing with an underscore: `_writer`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut payload = {
[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]   --> tests/test.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut mut_slice = message.as_mut_slice();
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/test.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             let mut linestr = str::from_utf8(&line).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/parser.rs:30:39
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn parse_request_line<R: BufRead>(mut reader: &mut R) -> HttpResult<HttpRequestLine> {
[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: method is never used: `query_raw`
[INFO] [stderr]   --> src/http.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn query_raw(&self, key: &str) -> Option<&[u8]> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `headers`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     headers: HttpHeaders,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `"docker" "inspect" "d348d30e8a75eefac49cfa7b678cc8d780b4b4db24e4df08dbd1abd3deab7878"`
[INFO] running `"docker" "rm" "-f" "d348d30e8a75eefac49cfa7b678cc8d780b4b4db24e4df08dbd1abd3deab7878"`
[INFO] [stdout] d348d30e8a75eefac49cfa7b678cc8d780b4b4db24e4df08dbd1abd3deab7878