[INFO] crate nickel_cors 0.2.3 is already in cache
[INFO] extracting crate nickel_cors 0.2.3 into work/ex/clippy-test-run/sources/stable/reg/nickel_cors/0.2.3
[INFO] extracting crate nickel_cors 0.2.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/nickel_cors/0.2.3
[INFO] validating manifest of nickel_cors-0.2.3 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 nickel_cors-0.2.3 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 nickel_cors-0.2.3
[INFO] finished frobbing nickel_cors-0.2.3
[INFO] frobbed toml for nickel_cors-0.2.3 written to work/ex/clippy-test-run/sources/stable/reg/nickel_cors/0.2.3/Cargo.toml
[INFO] started frobbing nickel_cors-0.2.3
[INFO] finished frobbing nickel_cors-0.2.3
[INFO] frobbed toml for nickel_cors-0.2.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/nickel_cors/0.2.3/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 nickel_cors-0.2.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/nickel_cors/0.2.3:/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] 877342d751874b7e6e0aef392c7ad1765342e2607950a8f91d35ceaa1d066a82
[INFO] running `"docker" "start" "-a" "877342d751874b7e6e0aef392c7ad1765342e2607950a8f91d35ceaa1d066a82"`
[INFO] [stderr]     Checking nickel v0.10.2
[INFO] [stderr]     Checking nickel_cors v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/lib.rs:16:48
[INFO] [stderr]    |
[INFO] [stderr] 16 |         env::var(NICKEL_ORS_ALLOW_CREDENTIALS).unwrap_or(String::from(DEFAULT_ALLOW_CREDENTIALS));
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_CREDENTIALS))`
[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/lib.rs:23:43
[INFO] [stderr]    |
[INFO] [stderr] 23 |         env::var(NICKEL_ORS_ALLOW_ORIGIN).unwrap_or(String::from(DEFAULT_ALLOW_ORIGIN));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_ORIGIN))`
[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/lib.rs:28:44
[INFO] [stderr]    |
[INFO] [stderr] 28 |         env::var(NICKEL_ORS_ALLOW_METHODS).unwrap_or(String::from(DEFAULT_ALLOW_METHODS));
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_METHODS))`
[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/lib.rs:35:44
[INFO] [stderr]    |
[INFO] [stderr] 35 |         env::var(NICKEL_ORS_ALLOW_HEADERS).unwrap_or(String::from(DEFAULT_ALLOW_HEADERS));
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_HEADERS))`
[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/lib.rs:41:48
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let max_age = env::var(NICKEL_ORS_MAX_AGE).unwrap_or(String::from(DEFAULT_MAX_AGE));
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_MAX_AGE))`
[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/lib.rs:16:48
[INFO] [stderr]    |
[INFO] [stderr] 16 |         env::var(NICKEL_ORS_ALLOW_CREDENTIALS).unwrap_or(String::from(DEFAULT_ALLOW_CREDENTIALS));
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_CREDENTIALS))`
[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/lib.rs:23:43
[INFO] [stderr]    |
[INFO] [stderr] 23 |         env::var(NICKEL_ORS_ALLOW_ORIGIN).unwrap_or(String::from(DEFAULT_ALLOW_ORIGIN));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_ORIGIN))`
[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/lib.rs:28:44
[INFO] [stderr]    |
[INFO] [stderr] 28 |         env::var(NICKEL_ORS_ALLOW_METHODS).unwrap_or(String::from(DEFAULT_ALLOW_METHODS));
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_METHODS))`
[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/lib.rs:35:44
[INFO] [stderr]    |
[INFO] [stderr] 35 |         env::var(NICKEL_ORS_ALLOW_HEADERS).unwrap_or(String::from(DEFAULT_ALLOW_HEADERS));
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_ALLOW_HEADERS))`
[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/lib.rs:41:48
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let max_age = env::var(NICKEL_ORS_MAX_AGE).unwrap_or(String::from(DEFAULT_MAX_AGE));
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from(DEFAULT_MAX_AGE))`
[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 13.99s
[INFO] running `"docker" "inspect" "877342d751874b7e6e0aef392c7ad1765342e2607950a8f91d35ceaa1d066a82"`
[INFO] running `"docker" "rm" "-f" "877342d751874b7e6e0aef392c7ad1765342e2607950a8f91d35ceaa1d066a82"`
[INFO] [stdout] 877342d751874b7e6e0aef392c7ad1765342e2607950a8f91d35ceaa1d066a82