[INFO] updating cached repository https://github.com/Peter-JanGootzen/tcp_http_server
[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] 46bf870053b4c3e7cc4515805a722df7159a5172
[INFO] checking Peter-JanGootzen/tcp_http_server against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeter-JanGootzen%2Ftcp_http_server" "/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/Peter-JanGootzen/tcp_http_server on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Peter-JanGootzen/tcp_http_server
[INFO] finished tweaking git repo https://github.com/Peter-JanGootzen/tcp_http_server
[INFO] tweaked toml for git repo https://github.com/Peter-JanGootzen/tcp_http_server written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Peter-JanGootzen/tcp_http_server already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 3089ac0bbcfb533009ee7fe599fa34b125006be109ca936bc7659a355b9e3cbc
[INFO] running `"docker" "start" "-a" "3089ac0bbcfb533009ee7fe599fa34b125006be109ca936bc7659a355b9e3cbc"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking dotenv v0.14.1
[INFO] [stderr]     Checking tcp_http_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/server/threadpool.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]  --> src/server/worker.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     id: usize,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/server/worker.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     thread: JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/server/threadpool.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]  --> src/server/worker.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     id: usize,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/server/worker.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     thread: JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> tests/models/middleware_test.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 |         |req, res| {
[INFO] [stderr]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> tests/models/middleware_test.rs:22:14
[INFO] [stderr]    |
[INFO] [stderr] 22 |             |req, res| {
[INFO] [stderr]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.20s
[INFO] running `"docker" "inspect" "3089ac0bbcfb533009ee7fe599fa34b125006be109ca936bc7659a355b9e3cbc"`
[INFO] running `"docker" "rm" "-f" "3089ac0bbcfb533009ee7fe599fa34b125006be109ca936bc7659a355b9e3cbc"`
[INFO] [stdout] 3089ac0bbcfb533009ee7fe599fa34b125006be109ca936bc7659a355b9e3cbc