[INFO] crate hyper-zipkin 0.4.0 is already in cache
[INFO] extracting crate hyper-zipkin 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/hyper-zipkin/0.4.0
[INFO] extracting crate hyper-zipkin 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hyper-zipkin/0.4.0
[INFO] validating manifest of hyper-zipkin-0.4.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hyper-zipkin-0.4.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hyper-zipkin-0.4.0
[INFO] finished frobbing hyper-zipkin-0.4.0
[INFO] frobbed toml for hyper-zipkin-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/hyper-zipkin/0.4.0/Cargo.toml
[INFO] started frobbing hyper-zipkin-0.4.0
[INFO] finished frobbing hyper-zipkin-0.4.0
[INFO] frobbed toml for hyper-zipkin-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hyper-zipkin/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting hyper-zipkin-0.4.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/hyper-zipkin/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ccd02954f140015015fb5dd703b8b0f01322513ca8edf2440768d8a2d93798b8
[INFO] running `"docker" "start" "-a" "ccd02954f140015015fb5dd703b8b0f01322513ca8edf2440768d8a2d93798b8"`
[INFO] [stderr]     Checking zipkin-types v0.1.0
[INFO] [stderr]     Checking thread-local-object v0.1.0
[INFO] [stderr]     Checking zipkin v0.3.4
[INFO] [stderr]     Checking hyper-zipkin v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 | /                 match byte {
[INFO] [stderr] 69 | |                     b'1' => return Ok(XB3Flags),
[INFO] [stderr] 70 | |                     _ => {}
[INFO] [stderr] 71 | |                 }
[INFO] [stderr]    | |_________________^ help: try this: `if let b'1' = byte { return Ok(XB3Flags) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 | /                 match byte {
[INFO] [stderr] 69 | |                     b'1' => return Ok(XB3Flags),
[INFO] [stderr] 70 | |                     _ => {}
[INFO] [stderr] 71 | |                 }
[INFO] [stderr]    | |_________________^ help: try this: `if let b'1' = byte { return Ok(XB3Flags) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.96s
[INFO] running `"docker" "inspect" "ccd02954f140015015fb5dd703b8b0f01322513ca8edf2440768d8a2d93798b8"`
[INFO] running `"docker" "rm" "-f" "ccd02954f140015015fb5dd703b8b0f01322513ca8edf2440768d8a2d93798b8"`
[INFO] [stdout] ccd02954f140015015fb5dd703b8b0f01322513ca8edf2440768d8a2d93798b8