[INFO] fetching crate tower-http-cache 0.4.3...
[INFO] checking tower-http-cache-0.4.3 against master#61cc47e367d7be91e13bcd01e4e96e0e233d4f6d for pr-133502-20
[INFO] extracting crate tower-http-cache 0.4.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate tower-http-cache 0.4.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tower-http-cache 0.4.3
[INFO] tweaked toml for crates.io crate tower-http-cache 0.4.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-http-cache 0.4.3 on toolchain 61cc47e367d7be91e13bcd01e4e96e0e233d4f6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tower-http-cache 0.4.3 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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "a33f1291de61db56f7cd1c01f3062876220cacbaff02508949f8233ae45ee3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a33f1291de61db56f7cd1c01f3062876220cacbaff02508949f8233ae45ee3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a33f1291de61db56f7cd1c01f3062876220cacbaff02508949f8233ae45ee3f4", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "289ea9681279e672200a033e5996d31ede2293fb9842e7bb98d742b3296efee7", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Uri`
[INFO] [stdout]  --> examples/chunk_cache_demo.rs:9:51
[INFO] [stdout]   |
[INFO] [stdout] 9 | use http::{Method, Request, Response, StatusCode, Uri};
[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 import: `Service`
[INFO] [stdout]   --> examples/chunk_cache_demo.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tower::{Service, ServiceBuilder, ServiceExt};
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layer`
[INFO] [stdout]    --> examples/v0_3_features.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |     let layer = CacheLayer::builder(backend)
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_layer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]    --> examples/v0_3_features.rs:309:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |     let stats = backend.stats();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 54.86s
[INFO] running `Command { std: "docker" "inspect" "289ea9681279e672200a033e5996d31ede2293fb9842e7bb98d742b3296efee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289ea9681279e672200a033e5996d31ede2293fb9842e7bb98d742b3296efee7", kill_on_drop: false }`
[INFO] [stdout] 289ea9681279e672200a033e5996d31ede2293fb9842e7bb98d742b3296efee7