[INFO] crate cmail 0.3.0 is already in cache
[INFO] extracting crate cmail 0.3.0 into work/ex/clippy-test-run/sources/stable/reg/cmail/0.3.0
[INFO] extracting crate cmail 0.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cmail/0.3.0
[INFO] validating manifest of cmail-0.3.0 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 cmail-0.3.0 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 cmail-0.3.0
[INFO] finished frobbing cmail-0.3.0
[INFO] frobbed toml for cmail-0.3.0 written to work/ex/clippy-test-run/sources/stable/reg/cmail/0.3.0/Cargo.toml
[INFO] started frobbing cmail-0.3.0
[INFO] finished frobbing cmail-0.3.0
[INFO] frobbed toml for cmail-0.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cmail/0.3.0/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 cmail-0.3.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cmail/0.3.0:/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] de390cef42b16753a2ec79769b1e931955e603ffb694ab0f1a2dcf60ab9d0acc
[INFO] running `"docker" "start" "-a" "de390cef42b16753a2ec79769b1e931955e603ffb694ab0f1a2dcf60ab9d0acc"`
[INFO] [stderr]     Checking cmail v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |             send_lines: send_lines,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `send_lines`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 |             recv_result: recv_result,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `recv_result`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:218:13
[INFO] [stderr]     |
[INFO] [stderr] 218 |             recv_done: recv_done,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `recv_done`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:310:19
[INFO] [stderr]     |
[INFO] [stderr] 310 |         Ok((Cmd { child: child }, muxer(vec![stdout, stderr])))
[INFO] [stderr]     |                   ^^^^^^^^^^^^ help: replace it with: `child`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |             send_lines: send_lines,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `send_lines`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 |             recv_result: recv_result,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `recv_result`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:218:13
[INFO] [stderr]     |
[INFO] [stderr] 218 |             recv_done: recv_done,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `recv_done`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> cmail.rs:310:19
[INFO] [stderr]     |
[INFO] [stderr] 310 |         Ok((Cmd { child: child }, muxer(vec![stdout, stderr])))
[INFO] [stderr]     |                   ^^^^^^^^^^^^ help: replace it with: `child`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> cmail.rs:193:24
[INFO] [stderr]     |
[INFO] [stderr] 193 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 194 | |                     if lines.len() == 0 {
[INFO] [stderr] 195 | |                         to_send = vec!["No output.".to_owned()];
[INFO] [stderr] 196 | |                     } else {
[INFO] [stderr] 197 | |                         to_send = lines;
[INFO] [stderr] 198 | |                     }
[INFO] [stderr] 199 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 193 |                 } else if lines.len() == 0 {
[INFO] [stderr] 194 |     to_send = vec!["No output.".to_owned()];
[INFO] [stderr] 195 | } else {
[INFO] [stderr] 196 |     to_send = lines;
[INFO] [stderr] 197 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> cmail.rs:193:24
[INFO] [stderr]     |
[INFO] [stderr] 193 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 194 | |                     if lines.len() == 0 {
[INFO] [stderr] 195 | |                         to_send = vec!["No output.".to_owned()];
[INFO] [stderr] 196 | |                     } else {
[INFO] [stderr] 197 | |                         to_send = lines;
[INFO] [stderr] 198 | |                     }
[INFO] [stderr] 199 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 193 |                 } else if lines.len() == 0 {
[INFO] [stderr] 194 |     to_send = vec!["No output.".to_owned()];
[INFO] [stderr] 195 | } else {
[INFO] [stderr] 196 |     to_send = lines;
[INFO] [stderr] 197 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> cmail.rs:89:35
[INFO] [stderr]    |
[INFO] [stderr] 89 |         None => env::var("EMAIL").unwrap_or("".to_owned()),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "".to_owned())`
[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: length comparison to zero
[INFO] [stderr]    --> cmail.rs:194:24
[INFO] [stderr]     |
[INFO] [stderr] 194 |                     if lines.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `lines.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> cmail.rs:89:35
[INFO] [stderr]    |
[INFO] [stderr] 89 |         None => env::var("EMAIL").unwrap_or("".to_owned()),
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "".to_owned())`
[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: length comparison to zero
[INFO] [stderr]    --> cmail.rs:194:24
[INFO] [stderr]     |
[INFO] [stderr] 194 |                     if lines.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `lines.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.26s
[INFO] running `"docker" "inspect" "de390cef42b16753a2ec79769b1e931955e603ffb694ab0f1a2dcf60ab9d0acc"`
[INFO] running `"docker" "rm" "-f" "de390cef42b16753a2ec79769b1e931955e603ffb694ab0f1a2dcf60ab9d0acc"`
[INFO] [stdout] de390cef42b16753a2ec79769b1e931955e603ffb694ab0f1a2dcf60ab9d0acc