[INFO] updating cached repository https://github.com/shqld/rust-http-etude
[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] b634f402f253dad9bd2b6772b906a891a863684c
[INFO] checking shqld/rust-http-etude against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshqld%2Frust-http-etude" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shqld/rust-http-etude on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shqld/rust-http-etude
[INFO] finished tweaking git repo https://github.com/shqld/rust-http-etude
[INFO] tweaked toml for git repo https://github.com/shqld/rust-http-etude written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/shqld/rust-http-etude already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 64a1d4a29f34b90d46aeeb2f2137dfdfbdb18c98c9154a946d949af0111f6e53
[INFO] running `"docker" "start" "-a" "64a1d4a29f34b90d46aeeb2f2137dfdfbdb18c98c9154a946d949af0111f6e53"`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking lazy_static v1.3.0
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[INFO] [stderr]    Compiling byteorder v1.3.1
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[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`, `Take`
[INFO] [stderr]  --> src/main.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{BufRead, BufReader, Read, Take};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^  ^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HttpRequest`
[INFO] [stderr]  --> src/http/req.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct HttpRequest<'a, T> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/http/req.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn new(uri: &'a str, method: HttpMethod, headers: HttpHeaderMap, body: T) -> HttpRequest<T> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `uri`
[INFO] [stderr]   --> src/http/req.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn uri(&self) -> &str {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `method`
[INFO] [stderr]   --> src/http/req.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   pub fn method(&self) -> &HttpMethod {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `headers`
[INFO] [stderr]   --> src/http/req.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn headers(&self) -> &HttpHeaderMap {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `body`
[INFO] [stderr]   --> src/http/req.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   pub fn body(&self) -> &T {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `body_mut`
[INFO] [stderr]   --> src/http/req.rs:41:3
[INFO] [stderr]    |
[INFO] [stderr] 41 |   pub fn body_mut(&mut self) -> &mut T {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `into_body`
[INFO] [stderr]   --> src/http/req.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn into_body(self) -> T {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `body`
[INFO] [stderr]   --> src/message.rs:79:3
[INFO] [stderr]    |
[INFO] [stderr] 79 |   pub fn body(&self) -> &Option<Take<BufReader<&'a TcpStream>>> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`, `Take`
[INFO] [stderr]  --> src/main.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{BufRead, BufReader, Read, Take};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^  ^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HttpRequest`
[INFO] [stderr]  --> src/http/req.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct HttpRequest<'a, T> {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/http/req.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn new(uri: &'a str, method: HttpMethod, headers: HttpHeaderMap, body: T) -> HttpRequest<T> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `uri`
[INFO] [stderr]   --> src/http/req.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn uri(&self) -> &str {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `method`
[INFO] [stderr]   --> src/http/req.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   pub fn method(&self) -> &HttpMethod {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `headers`
[INFO] [stderr]   --> src/http/req.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn headers(&self) -> &HttpHeaderMap {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `body`
[INFO] [stderr]   --> src/http/req.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   pub fn body(&self) -> &T {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `body_mut`
[INFO] [stderr]   --> src/http/req.rs:41:3
[INFO] [stderr]    |
[INFO] [stderr] 41 |   pub fn body_mut(&mut self) -> &mut T {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `into_body`
[INFO] [stderr]   --> src/http/req.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn into_body(self) -> T {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `body`
[INFO] [stderr]   --> src/message.rs:79:3
[INFO] [stderr]    |
[INFO] [stderr] 79 |   pub fn body(&self) -> &Option<Take<BufReader<&'a TcpStream>>> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.86s
[INFO] running `"docker" "inspect" "64a1d4a29f34b90d46aeeb2f2137dfdfbdb18c98c9154a946d949af0111f6e53"`
[INFO] running `"docker" "rm" "-f" "64a1d4a29f34b90d46aeeb2f2137dfdfbdb18c98c9154a946d949af0111f6e53"`
[INFO] [stdout] 64a1d4a29f34b90d46aeeb2f2137dfdfbdb18c98c9154a946d949af0111f6e53