[INFO] fetching crate http4r-core 0.0.6...
[INFO] checking http4r-core-0.0.6 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate http4r-core 0.0.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate http4r-core 0.0.6 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate http4r-core 0.0.6
[INFO] finished tweaking crates.io crate http4r-core 0.0.6
[INFO] tweaked toml for crates.io crate http4r-core 0.0.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate http4r-core 0.0.6 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded alloc-stdlib v0.2.1
[INFO] [stderr]   Downloaded alloc-no-stdlib v2.0.3
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.2
[INFO] [stderr]   Downloaded brotli v3.3.3
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 940d4f87d593a5bf5509faa62c0f38548456e8d55361dcbb78094f95d72a8dec
[INFO] running `Command { std: "docker" "start" "-a" "940d4f87d593a5bf5509faa62c0f38548456e8d55361dcbb78094f95d72a8dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "940d4f87d593a5bf5509faa62c0f38548456e8d55361dcbb78094f95d72a8dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "940d4f87d593a5bf5509faa62c0f38548456e8d55361dcbb78094f95d72a8dec", kill_on_drop: false }`
[INFO] [stdout] 940d4f87d593a5bf5509faa62c0f38548456e8d55361dcbb78094f95d72a8dec
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 695be3c52b196ea079c51737539a5b64ccd3d01a464d06080597f92635f1d94c
[INFO] running `Command { std: "docker" "start" "-a" "695be3c52b196ea079c51737539a5b64ccd3d01a464d06080597f92635f1d94c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking brotli v3.3.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking http4r-core v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `options` is never read
[INFO] [stdout]   --> src/client.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Client {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 65 |     options: ClientOptions,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `headers_size` and `trailers_size` are never read
[INFO] [stdout]   --> src/client.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct ClientOptions {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 70 |     headers_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 71 |     trailers_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Multipart` is never constructed
[INFO] [stdout]    --> src/http_message.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 173 | enum ReadMetadata {
[INFO] [stdout]     |      ------------ variant in this enum
[INFO] [stdout] 174 |     Chunked(ChunkedMetadata),
[INFO] [stdout] 175 |     Multipart(MultipartMetadata),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReadMetadata` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/http_message.rs:130:44
[INFO] [stdout]     |
[INFO] [stdout] 130 |     message(part1.to_string(), part2, part3.clone().to_string(), is_response, body, headers, trailers)
[INFO] [stdout]     |                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `(String, String)` instead of cloning the inner type
[INFO] [stdout]   --> src/query.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 55 |             q.clone().0 == p0
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `options` is never read
[INFO] [stdout]   --> src/client.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Client {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 65 |     options: ClientOptions,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `headers_size` and `trailers_size` are never read
[INFO] [stdout]   --> src/client.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct ClientOptions {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 70 |     headers_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 71 |     trailers_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Multipart` is never constructed
[INFO] [stdout]    --> src/http_message.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 173 | enum ReadMetadata {
[INFO] [stdout]     |      ------------ variant in this enum
[INFO] [stdout] 174 |     Chunked(ChunkedMetadata),
[INFO] [stdout] 175 |     Multipart(MultipartMetadata),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReadMetadata` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/http_message.rs:130:44
[INFO] [stdout]     |
[INFO] [stdout] 130 |     message(part1.to_string(), part2, part3.clone().to_string(), is_response, body, headers, trailers)
[INFO] [stdout]     |                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `(String, String)` instead of cloning the inner type
[INFO] [stdout]   --> src/query.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 55 |             q.clone().0 == p0
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "695be3c52b196ea079c51737539a5b64ccd3d01a464d06080597f92635f1d94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695be3c52b196ea079c51737539a5b64ccd3d01a464d06080597f92635f1d94c", kill_on_drop: false }`
[INFO] [stdout] 695be3c52b196ea079c51737539a5b64ccd3d01a464d06080597f92635f1d94c