[INFO] cloning repository https://github.com/gbc-collib/rust-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/gbc-collib/rust-http-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbc-collib%2Frust-http-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbc-collib%2Frust-http-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16095358897100d32274d8ce121edc02b1c2acb9
[INFO] checking gbc-collib/rust-http-server against try#26ad8a85dc4eed299af809e52f278da81e284602 for pr-138458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbc-collib%2Frust-http-server" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gbc-collib/rust-http-server on toolchain 26ad8a85dc4eed299af809e52f278da81e284602
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+26ad8a85dc4eed299af809e52f278da81e284602" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gbc-collib/rust-http-server
[INFO] finished tweaking git repo https://github.com/gbc-collib/rust-http-server
[INFO] tweaked toml for git repo https://github.com/gbc-collib/rust-http-server written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gbc-collib/rust-http-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+26ad8a85dc4eed299af809e52f278da81e284602" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking gbc-collib/rust-http-server against try#26ad8a85dc4eed299af809e52f278da81e284602 for pr-138458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbc-collib%2Frust-http-server" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gbc-collib/rust-http-server on toolchain 26ad8a85dc4eed299af809e52f278da81e284602
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+26ad8a85dc4eed299af809e52f278da81e284602" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gbc-collib/rust-http-server
[INFO] finished tweaking git repo https://github.com/gbc-collib/rust-http-server
[INFO] tweaked toml for git repo https://github.com/gbc-collib/rust-http-server written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gbc-collib/rust-http-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+26ad8a85dc4eed299af809e52f278da81e284602" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+26ad8a85dc4eed299af809e52f278da81e284602" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee0b552edf3741501e47707ed98bf2ecc5d9f9f57b9d8a7fb20af37630b9e07f
[INFO] running `Command { std: "docker" "start" "-a" "ee0b552edf3741501e47707ed98bf2ecc5d9f9f57b9d8a7fb20af37630b9e07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0b552edf3741501e47707ed98bf2ecc5d9f9f57b9d8a7fb20af37630b9e07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0b552edf3741501e47707ed98bf2ecc5d9f9f57b9d8a7fb20af37630b9e07f", kill_on_drop: false }`
[INFO] [stdout] ee0b552edf3741501e47707ed98bf2ecc5d9f9f57b9d8a7fb20af37630b9e07f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+26ad8a85dc4eed299af809e52f278da81e284602" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5e190461bab263f94f12096c2bc3e91a29691433ee8f231827681074b6bb521
[INFO] running `Command { std: "docker" "start" "-a" "b5e190461bab263f94f12096c2bc3e91a29691433ee8f231827681074b6bb521", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/main.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn parse(request: &[&u8]) -> Self {
[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: `request`
[INFO] [stdout]   --> src/main.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn parse(request: &[&u8]) -> Self {
[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: struct `HTTPRequest` is never constructed
[INFO] [stdout]   --> src/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct HTTPRequest {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse` is never used
[INFO] [stdout]   --> src/main.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl HTTPRequest {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 90 |     fn parse(request: &[&u8]) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HTTPRequest` is never constructed
[INFO] [stdout]   --> src/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct HTTPRequest {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse` is never used
[INFO] [stdout]   --> src/main.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl HTTPRequest {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 90 |     fn parse(request: &[&u8]) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "b5e190461bab263f94f12096c2bc3e91a29691433ee8f231827681074b6bb521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5e190461bab263f94f12096c2bc3e91a29691433ee8f231827681074b6bb521", kill_on_drop: false }`
[INFO] [stdout] b5e190461bab263f94f12096c2bc3e91a29691433ee8f231827681074b6bb521