[INFO] updating cached repository TechnoCrunch/huffman-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/TechnoCrunch/huffman-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/TechnoCrunch/huffman-rs" "work/ex/clippy-test-run/sources/stable/gh/TechnoCrunch/huffman-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/TechnoCrunch/huffman-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/TechnoCrunch/huffman-rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/TechnoCrunch/huffman-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/TechnoCrunch/huffman-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9873df86b7f1175b7797e634811ed0887fa53532
[INFO] sha for GitHub repo TechnoCrunch/huffman-rs: 9873df86b7f1175b7797e634811ed0887fa53532
[INFO] validating manifest of TechnoCrunch/huffman-rs 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 TechnoCrunch/huffman-rs 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 TechnoCrunch/huffman-rs
[INFO] finished frobbing TechnoCrunch/huffman-rs
[INFO] frobbed toml for TechnoCrunch/huffman-rs written to work/ex/clippy-test-run/sources/stable/gh/TechnoCrunch/huffman-rs/Cargo.toml
[INFO] started frobbing TechnoCrunch/huffman-rs
[INFO] finished frobbing TechnoCrunch/huffman-rs
[INFO] frobbed toml for TechnoCrunch/huffman-rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/TechnoCrunch/huffman-rs/Cargo.toml
[INFO] crate TechnoCrunch/huffman-rs 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 TechnoCrunch/huffman-rs against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/TechnoCrunch/huffman-rs:/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] 7c14fc489804cfa4ab2015916411e8a1625b7d4198ef0ae1357c4e6dcebd93d9
[INFO] running `"docker" "start" "-a" "7c14fc489804cfa4ab2015916411e8a1625b7d4198ef0ae1357c4e6dcebd93d9"`
[INFO] [stderr]     Checking huffman v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 126 |             ch: ch,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `ch`
[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]    --> src/main.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             frequency: frequency,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `frequency`
[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]    --> src/main.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             left: left,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `left`
[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]    --> src/main.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             right: right,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `right`
[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]    --> src/main.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 126 |             ch: ch,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `ch`
[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]    --> src/main.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             frequency: frequency,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `frequency`
[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]    --> src/main.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             left: left,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `left`
[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]    --> src/main.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             right: right,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `right`
[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: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:65:43
[INFO] [stderr]    |
[INFO] [stderr] 65 |             generate_code(l, huffman_map, (s.clone() + "0"));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:68:43
[INFO] [stderr]    |
[INFO] [stderr] 68 |             generate_code(r, huffman_map, (s.clone() + "1"));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/main.rs:95:16
[INFO] [stderr]    |
[INFO] [stderr] 95 |           } else {
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 96 | |             if let Some(ref r) = node_ptr.right {
[INFO] [stderr] 97 | |                 node_ptr = r;
[INFO] [stderr] 98 | |             }
[INFO] [stderr] 99 | |         }
[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] 95 |         } else if let Some(ref r) = node_ptr.right {
[INFO] [stderr] 96 |     node_ptr = r;
[INFO] [stderr] 97 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:65:43
[INFO] [stderr]    |
[INFO] [stderr] 65 |             generate_code(l, huffman_map, (s.clone() + "0"));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:68:43
[INFO] [stderr]    |
[INFO] [stderr] 68 |             generate_code(r, huffman_map, (s.clone() + "1"));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/main.rs:95:16
[INFO] [stderr]    |
[INFO] [stderr] 95 |           } else {
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 96 | |             if let Some(ref r) = node_ptr.right {
[INFO] [stderr] 97 | |                 node_ptr = r;
[INFO] [stderr] 98 | |             }
[INFO] [stderr] 99 | |         }
[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] 95 |         } else if let Some(ref r) = node_ptr.right {
[INFO] [stderr] 96 |     node_ptr = r;
[INFO] [stderr] 97 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "7c14fc489804cfa4ab2015916411e8a1625b7d4198ef0ae1357c4e6dcebd93d9"`
[INFO] running `"docker" "rm" "-f" "7c14fc489804cfa4ab2015916411e8a1625b7d4198ef0ae1357c4e6dcebd93d9"`
[INFO] [stdout] 7c14fc489804cfa4ab2015916411e8a1625b7d4198ef0ae1357c4e6dcebd93d9