[INFO] cloning repository https://github.com/Lulzmatt27/simple_http_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lulzmatt27/simple_http_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLulzmatt27%2Fsimple_http_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLulzmatt27%2Fsimple_http_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90b2dac0c00d3753b193d561ad5d49dd510e396c
[INFO] checking Lulzmatt27/simple_http_rust against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLulzmatt27%2Fsimple_http_rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lulzmatt27/simple_http_rust on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lulzmatt27/simple_http_rust
[INFO] finished tweaking git repo https://github.com/Lulzmatt27/simple_http_rust
[INFO] tweaked toml for git repo https://github.com/Lulzmatt27/simple_http_rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Lulzmatt27/simple_http_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a4220d28a19dbb54335d109c4bf21273fc26890b72af2fd36638401738f8ab0
[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" "3a4220d28a19dbb54335d109c4bf21273fc26890b72af2fd36638401738f8ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a4220d28a19dbb54335d109c4bf21273fc26890b72af2fd36638401738f8ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a4220d28a19dbb54335d109c4bf21273fc26890b72af2fd36638401738f8ab0", kill_on_drop: false }`
[INFO] [stdout] 3a4220d28a19dbb54335d109c4bf21273fc26890b72af2fd36638401738f8ab0
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bcc74ccb19f6800612daf82c4263198e91f70aabf95aae07804ca6c59acc736a
[INFO] running `Command { std: "docker" "start" "-a" "bcc74ccb19f6800612daf82c4263198e91f70aabf95aae07804ca6c59acc736a", kill_on_drop: false }`
[INFO] [stderr]     Checking http_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `http::Request`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use http::Request;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `http::Method`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use http::Method;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/server.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `http::Request`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use http::Request;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `http::Method`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use http::Method;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/server.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/server.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Ok((mut stream, addr)) => {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/server.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |       let (stream, addr) = res.unwrap();
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/server.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |       let (stream, addr) = res.unwrap();
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/server.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Ok((mut stream, addr)) => {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/server.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |       let (stream, addr) = res.unwrap();
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/server.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |       let (stream, addr) = res.unwrap();
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "bcc74ccb19f6800612daf82c4263198e91f70aabf95aae07804ca6c59acc736a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcc74ccb19f6800612daf82c4263198e91f70aabf95aae07804ca6c59acc736a", kill_on_drop: false }`
[INFO] [stdout] bcc74ccb19f6800612daf82c4263198e91f70aabf95aae07804ca6c59acc736a