[INFO] fetching crate http4r-core 0.0.6...
[INFO] testing http4r-core-0.0.6 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate http4r-core 0.0.6 into /workspace/builds/worker-7-tc1/source
[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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate http4r-core 0.0.6 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded alloc-no-stdlib v2.0.3
[INFO] [stderr]   Downloaded adler v1.0.2
[INFO] [stderr]   Downloaded alloc-stdlib v0.2.1
[INFO] [stderr]   Downloaded flate2 v1.0.22
[INFO] [stderr]   Downloaded crc32fast v1.3.2
[INFO] [stderr]   Downloaded miniz_oxide v0.4.4
[INFO] [stderr]   Downloaded aho-corasick v0.7.18
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.2
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] [stderr]   Downloaded brotli v3.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8038e19a2e6bb5cf72d7f404a98c403710d96f5141b7fbe57e7946115e45f30e
[INFO] running `Command { std: "docker" "start" "-a" "8038e19a2e6bb5cf72d7f404a98c403710d96f5141b7fbe57e7946115e45f30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8038e19a2e6bb5cf72d7f404a98c403710d96f5141b7fbe57e7946115e45f30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8038e19a2e6bb5cf72d7f404a98c403710d96f5141b7fbe57e7946115e45f30e", kill_on_drop: false }`
[INFO] [stdout] 8038e19a2e6bb5cf72d7f404a98c403710d96f5141b7fbe57e7946115e45f30e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95e663f32994f271638e17c92ed6f458009c90e5ee8d94e3b4623eeb8dfe8f2d
[INFO] running `Command { std: "docker" "start" "-a" "95e663f32994f271638e17c92ed6f458009c90e5ee8d94e3b4623eeb8dfe8f2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling brotli-decompressor v2.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling brotli v3.3.3
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.29s
[INFO] running `Command { std: "docker" "inspect" "95e663f32994f271638e17c92ed6f458009c90e5ee8d94e3b4623eeb8dfe8f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e663f32994f271638e17c92ed6f458009c90e5ee8d94e3b4623eeb8dfe8f2d", kill_on_drop: false }`
[INFO] [stdout] 95e663f32994f271638e17c92ed6f458009c90e5ee8d94e3b4623eeb8dfe8f2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea070369d8e2e4f21ed69edb18e52aeb7cb92d963c8a670950e5efe0f752aceb
[INFO] running `Command { std: "docker" "start" "-a" "ea070369d8e2e4f21ed69edb18e52aeb7cb92d963c8a670950e5efe0f752aceb", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) 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] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "ea070369d8e2e4f21ed69edb18e52aeb7cb92d963c8a670950e5efe0f752aceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea070369d8e2e4f21ed69edb18e52aeb7cb92d963c8a670950e5efe0f752aceb", kill_on_drop: false }`
[INFO] [stdout] ea070369d8e2e4f21ed69edb18e52aeb7cb92d963c8a670950e5efe0f752aceb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21ce3de89b0365c2fa506a005bb2cc48ca0cfe178b48d89cf815d5093e2445e6
[INFO] running `Command { std: "docker" "start" "-a" "21ce3de89b0365c2fa506a005bb2cc48ca0cfe178b48d89cf815d5093e2445e6", kill_on_drop: false }`
[INFO] [stderr] warning: field `options` is never read
[INFO] [stderr]   --> src/client.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub struct Client {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 65 |     options: ClientOptions,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `headers_size` and `trailers_size` are never read
[INFO] [stderr]   --> src/client.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub struct ClientOptions {
[INFO] [stderr]    |            ------------- fields in this struct
[INFO] [stderr] 70 |     headers_size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 71 |     trailers_size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Multipart` is never constructed
[INFO] [stderr]    --> src/http_message.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 173 | enum ReadMetadata {
[INFO] [stderr]     |      ------------ variant in this enum
[INFO] [stderr] 174 |     Chunked(ChunkedMetadata),
[INFO] [stderr] 175 |     Multipart(MultipartMetadata),
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ReadMetadata` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/http_message.rs:130:44
[INFO] [stderr]     |
[INFO] [stderr] 130 |     message(part1.to_string(), part2, part3.clone().to_string(), is_response, body, headers, trailers)
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `(String, String)` instead of cloning the inner type
[INFO] [stderr]   --> src/query.rs:55:14
[INFO] [stderr]    |
[INFO] [stderr] 55 |             q.clone().0 == p0
[INFO] [stderr]    |              ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `http4r-core` (lib) generated 5 warnings (run `cargo fix --lib -p http4r-core` to apply 1 suggestion)
[INFO] [stderr] warning: `http4r-core` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/http4r_core-29b4e11429955439)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/http4r_core-9ef41d9a5e5c8fd2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests http4r_core
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "21ce3de89b0365c2fa506a005bb2cc48ca0cfe178b48d89cf815d5093e2445e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ce3de89b0365c2fa506a005bb2cc48ca0cfe178b48d89cf815d5093e2445e6", kill_on_drop: false }`
[INFO] [stdout] 21ce3de89b0365c2fa506a005bb2cc48ca0cfe178b48d89cf815d5093e2445e6