[INFO] updating cached repository hemnet/http-hello-world
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hemnet/http-hello-world
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hemnet/http-hello-world" "work/ex/clippy-test-run/sources/stable/gh/hemnet/http-hello-world"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/hemnet/http-hello-world'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hemnet/http-hello-world" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hemnet/http-hello-world"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hemnet/http-hello-world'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c18d4563b771c173636602022c6ab03a327a929e
[INFO] sha for GitHub repo hemnet/http-hello-world: c18d4563b771c173636602022c6ab03a327a929e
[INFO] validating manifest of hemnet/http-hello-world 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 hemnet/http-hello-world 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 hemnet/http-hello-world
[INFO] finished frobbing hemnet/http-hello-world
[INFO] frobbed toml for hemnet/http-hello-world written to work/ex/clippy-test-run/sources/stable/gh/hemnet/http-hello-world/Cargo.toml
[INFO] started frobbing hemnet/http-hello-world
[INFO] finished frobbing hemnet/http-hello-world
[INFO] frobbed toml for hemnet/http-hello-world written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hemnet/http-hello-world/Cargo.toml
[INFO] crate hemnet/http-hello-world has a lockfile. skipping
[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 hemnet/http-hello-world against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/hemnet/http-hello-world:/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] 7ec0fa380334427701cab03c880a8df038be7c9f32e9923a3ea28bb153b43fec
[INFO] running `"docker" "start" "-a" "7ec0fa380334427701cab03c880a8df038be7c9f32e9923a3ea28bb153b43fec"`
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]     Checking hyper v0.10.5
[INFO] [stderr]     Checking chan-signal v0.2.0
[INFO] [stderr]     Checking http-hello-world v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]  --> src/main.rs:8:46
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let receiver = std::env::var("RECEIVER").unwrap_or(String::from("World"));
[INFO] [stderr]   |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from("World"))`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/main.rs:14:38
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let port = std::env::var("PORT").unwrap_or(String::from("80"));
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from("80"))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]  --> src/main.rs:8:46
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let receiver = std::env::var("RECEIVER").unwrap_or(String::from("World"));
[INFO] [stderr]   |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from("World"))`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/main.rs:14:38
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let port = std::env::var("PORT").unwrap_or(String::from("80"));
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from("80"))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.63s
[INFO] running `"docker" "inspect" "7ec0fa380334427701cab03c880a8df038be7c9f32e9923a3ea28bb153b43fec"`
[INFO] running `"docker" "rm" "-f" "7ec0fa380334427701cab03c880a8df038be7c9f32e9923a3ea28bb153b43fec"`
[INFO] [stdout] 7ec0fa380334427701cab03c880a8df038be7c9f32e9923a3ea28bb153b43fec