[INFO] cloning repository https://github.com/Metallifax/rust_course_http_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Metallifax/rust_course_http_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetallifax%2Frust_course_http_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetallifax%2Frust_course_http_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77b5f0d6bed63f9b7a3c207fe0c88a71e869d7e5
[INFO] checking Metallifax/rust_course_http_server against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMetallifax%2Frust_course_http_server" "/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/Metallifax/rust_course_http_server on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Metallifax/rust_course_http_server
[INFO] finished tweaking git repo https://github.com/Metallifax/rust_course_http_server
[INFO] tweaked toml for git repo https://github.com/Metallifax/rust_course_http_server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Metallifax/rust_course_http_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", 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] 4e08a4d0abbe1f131e6907b58a1c365be2b7d524cc8ff2730d4632fba75ac576
[INFO] running `Command { std: "docker" "start" "-a" "4e08a4d0abbe1f131e6907b58a1c365be2b7d524cc8ff2730d4632fba75ac576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e08a4d0abbe1f131e6907b58a1c365be2b7d524cc8ff2730d4632fba75ac576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e08a4d0abbe1f131e6907b58a1c365be2b7d524cc8ff2730d4632fba75ac576", kill_on_drop: false }`
[INFO] [stdout] 4e08a4d0abbe1f131e6907b58a1c365be2b7d524cc8ff2730d4632fba75ac576
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22ab7857c161fbce5b5b8b2b0a59a8e443e714be3debc60966f5e21c3c17366b
[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" "22ab7857c161fbce5b5b8b2b0a59a8e443e714be3debc60966f5e21c3c17366b", kill_on_drop: false }`
[INFO] [stderr]     Checking http_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/server.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/server.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 Ok(request) => {}
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/http/request.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |   fn try_from(buf: &[u8]) -> Result<Self, Self::Error> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GET`
[INFO] [stdout]  --> src/http/method.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 |   GET(String),
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DELETE`
[INFO] [stdout]  --> src/http/method.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   DELETE(u64),
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `POST`
[INFO] [stdout]  --> src/http/method.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   POST,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PUT`
[INFO] [stdout]  --> src/http/method.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   PUT,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HEAD`
[INFO] [stdout]  --> src/http/method.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   HEAD,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CONNECT`
[INFO] [stdout]  --> src/http/method.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   CONNECT,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OPTIONS`
[INFO] [stdout]  --> src/http/method.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   OPTIONS,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TRACE`
[INFO] [stdout]  --> src/http/method.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   TRACE,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PATCH`
[INFO] [stdout]   --> src/http/method.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   PATCH,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]  --> src/http/request.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   path: String,
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `query_string`
[INFO] [stdout]  --> src/http/request.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   query_string: Option<String>,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `method`
[INFO] [stdout]  --> src/http/request.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   method: Method,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/server.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/server.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 Ok(request) => {}
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/http/request.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |   fn try_from(buf: &[u8]) -> Result<Self, Self::Error> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GET`
[INFO] [stdout]  --> src/http/method.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 |   GET(String),
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DELETE`
[INFO] [stdout]  --> src/http/method.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   DELETE(u64),
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `POST`
[INFO] [stdout]  --> src/http/method.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   POST,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PUT`
[INFO] [stdout]  --> src/http/method.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   PUT,
[INFO] [stdout]   |   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HEAD`
[INFO] [stdout]  --> src/http/method.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   HEAD,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CONNECT`
[INFO] [stdout]  --> src/http/method.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   CONNECT,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OPTIONS`
[INFO] [stdout]  --> src/http/method.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   OPTIONS,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TRACE`
[INFO] [stdout]  --> src/http/method.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   TRACE,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PATCH`
[INFO] [stdout]   --> src/http/method.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   PATCH,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]  --> src/http/request.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   path: String,
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `query_string`
[INFO] [stdout]  --> src/http/request.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   query_string: Option<String>,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `method`
[INFO] [stdout]  --> src/http/request.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   method: Method,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "22ab7857c161fbce5b5b8b2b0a59a8e443e714be3debc60966f5e21c3c17366b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ab7857c161fbce5b5b8b2b0a59a8e443e714be3debc60966f5e21c3c17366b", kill_on_drop: false }`
[INFO] [stdout] 22ab7857c161fbce5b5b8b2b0a59a8e443e714be3debc60966f5e21c3c17366b