[INFO] fetching crate fp_server 2.0.5...
[INFO] checking fp_server-2.0.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate fp_server 2.0.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate fp_server 2.0.5 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fp_server 2.0.5
[INFO] finished tweaking crates.io crate fp_server 2.0.5
[INFO] tweaked toml for crates.io crate fp_server 2.0.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28da5072aef76144cb17022adc466a3a080fa1512c254f08e4f2c846fe0a4d27
[INFO] running `Command { std: "docker" "start" "-a" "28da5072aef76144cb17022adc466a3a080fa1512c254f08e4f2c846fe0a4d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28da5072aef76144cb17022adc466a3a080fa1512c254f08e4f2c846fe0a4d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28da5072aef76144cb17022adc466a3a080fa1512c254f08e4f2c846fe0a4d27", kill_on_drop: false }`
[INFO] [stdout] 28da5072aef76144cb17022adc466a3a080fa1512c254f08e4f2c846fe0a4d27
[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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3513d44a1dc46b941ec52b93d604f533b43dd9aef28427e8089efa1963b8fd56
[INFO] running `Command { std: "docker" "start" "-a" "3513d44a1dc46b941ec52b93d604f533b43dd9aef28427e8089efa1963b8fd56", kill_on_drop: false }`
[INFO] [stderr]     Checking fp_server v2.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `clear`, `add_query`, and `add_header` are never used
[INFO] [stdout]   --> src/request_builder.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl HTTPRequestBuilder {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn clear(&mut self) -> &mut Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn add_query(&mut self, key: &str, value: &str) -> &mut Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn add_header(&mut self, key: &str, value: &str) -> &mut Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `clear`, `add_query`, and `add_header` are never used
[INFO] [stdout]   --> src/request_builder.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl HTTPRequestBuilder {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn clear(&mut self) -> &mut Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn add_query(&mut self, key: &str, value: &str) -> &mut Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn add_header(&mut self, key: &str, value: &str) -> &mut Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 0.21s
[INFO] running `Command { std: "docker" "inspect" "3513d44a1dc46b941ec52b93d604f533b43dd9aef28427e8089efa1963b8fd56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3513d44a1dc46b941ec52b93d604f533b43dd9aef28427e8089efa1963b8fd56", kill_on_drop: false }`
[INFO] [stdout] 3513d44a1dc46b941ec52b93d604f533b43dd9aef28427e8089efa1963b8fd56