[INFO] fetching crate WebServer_kevin 0.1.0...
[INFO] checking WebServer_kevin-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate WebServer_kevin 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate WebServer_kevin 0.1.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate WebServer_kevin 0.1.0
[INFO] finished tweaking crates.io crate WebServer_kevin 0.1.0
[INFO] tweaked toml for crates.io crate WebServer_kevin 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate WebServer_kevin 0.1.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a0c66f6b9cf01c091dae47c8946458b013ab1b68c42d008afbbbe272f856add
[INFO] running `Command { std: "docker" "start" "-a" "5a0c66f6b9cf01c091dae47c8946458b013ab1b68c42d008afbbbe272f856add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a0c66f6b9cf01c091dae47c8946458b013ab1b68c42d008afbbbe272f856add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a0c66f6b9cf01c091dae47c8946458b013ab1b68c42d008afbbbe272f856add", kill_on_drop: false }`
[INFO] [stdout] 5a0c66f6b9cf01c091dae47c8946458b013ab1b68c42d008afbbbe272f856add
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40d3be94721350d035b07d628fb28d662c0cb42040a4faa34b927b8499a164f0
[INFO] running `Command { std: "docker" "start" "-a" "40d3be94721350d035b07d628fb28d662c0cb42040a4faa34b927b8499a164f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking WebServer_kevin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Thread`
[INFO] [stdout]  --> src/lib.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::{JoinHandle, Thread};
[INFO] [stdout]   |                               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Thread`
[INFO] [stdout]  --> src/lib.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread::{JoinHandle, Thread};
[INFO] [stdout]   |                               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `WebServer_kevin` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `web_server_kevin`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/bin/main.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let (status_line,filename) = if buffer.starts_with(get){
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/bin/main.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let (status_line,filename) = if buffer.starts_with(get){
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "40d3be94721350d035b07d628fb28d662c0cb42040a4faa34b927b8499a164f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d3be94721350d035b07d628fb28d662c0cb42040a4faa34b927b8499a164f0", kill_on_drop: false }`
[INFO] [stdout] 40d3be94721350d035b07d628fb28d662c0cb42040a4faa34b927b8499a164f0