[INFO] fetching crate flags-rs 0.1.12...
[INFO] checking flags-rs-0.1.12 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate flags-rs 0.1.12 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate flags-rs 0.1.12
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate flags-rs 0.1.12
[INFO] tweaked toml for crates.io crate flags-rs 0.1.12 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flags-rs 0.1.12 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flags-rs 0.1.12 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deadpool v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89ee259e22de6b79b919aebd79d360ccc0c880df7b205768cf2f92c57b5d05a3
[INFO] running `Command { std: "docker" "start" "-a" "89ee259e22de6b79b919aebd79d360ccc0c880df7b205768cf2f92c57b5d05a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89ee259e22de6b79b919aebd79d360ccc0c880df7b205768cf2f92c57b5d05a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ee259e22de6b79b919aebd79d360ccc0c880df7b205768cf2f92c57b5d05a3", kill_on_drop: false }`
[INFO] [stdout] 89ee259e22de6b79b919aebd79d360ccc0c880df7b205768cf2f92c57b5d05a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84de5df1fda270dd45b8ad5577fe5ca98bfcf0e1413f8b2fb5c666784fd83233
[INFO] running `Command { std: "docker" "start" "-a" "84de5df1fda270dd45b8ad5577fe5ca98bfcf0e1413f8b2fb5c666784fd83233", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Request`, `Response`, and `StatusCode`
[INFO] [stdout]  --> examples/tower_middleware.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use http::{Request, Response, StatusCode};
[INFO] [stdout]   |            ^^^^^^^  ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BodyExt`, `Empty`, and `Full`
[INFO] [stdout]  --> examples/tower_middleware.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use http_body_util::{BodyExt, Empty, Full};
[INFO] [stdout]   |                      ^^^^^^^  ^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::Infallible`
[INFO] [stdout]  --> examples/tower_middleware.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::Infallible;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ServiceBuilder` and `ServiceExt`
[INFO] [stdout]  --> examples/tower_middleware.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tower::{ServiceBuilder, ServiceExt};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> examples/tower_middleware.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.88s
[INFO] running `Command { std: "docker" "inspect" "84de5df1fda270dd45b8ad5577fe5ca98bfcf0e1413f8b2fb5c666784fd83233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84de5df1fda270dd45b8ad5577fe5ca98bfcf0e1413f8b2fb5c666784fd83233", kill_on_drop: false }`
[INFO] [stdout] 84de5df1fda270dd45b8ad5577fe5ca98bfcf0e1413f8b2fb5c666784fd83233