[INFO] crate truecase 0.2.0 is already in cache
[INFO] extracting crate truecase 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/truecase/0.2.0
[INFO] extracting crate truecase 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/truecase/0.2.0
[INFO] validating manifest of truecase-0.2.0 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 truecase-0.2.0 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 truecase-0.2.0
[INFO] finished frobbing truecase-0.2.0
[INFO] frobbed toml for truecase-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/truecase/0.2.0/Cargo.toml
[INFO] started frobbing truecase-0.2.0
[INFO] finished frobbing truecase-0.2.0
[INFO] frobbed toml for truecase-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/truecase/0.2.0/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 truecase-0.2.0 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/truecase/0.2.0:/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] d00582ff5cf0131bc035bb9e31a0742b86796cdc2cb00ccc678d8cd2b002562a
[INFO] running `"docker" "start" "-a" "d00582ff5cf0131bc035bb9e31a0742b86796cdc2cb00ccc678d8cd2b002562a"`
[INFO] [stderr]     Checking criterion v0.2.9
[INFO] [stderr]     Checking truecase v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]   --> src/trainer.rs:99:59
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 .map(|whatever| join_with_spaces(whatever.into_iter()));
[INFO] [stderr]    |                                                           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]    --> src/trainer.rs:102:59
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 .map(|whatever| join_with_spaces(whatever.into_iter()));
[INFO] [stderr]     |                                                           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/trainer.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 .any(|(k, v)| *bigrams.get(&k).unwrap() != v)
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&bigrams[&k]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/trainer.rs:114:31
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 .any(|(k, v)| unigrams.get(k).unwrap() != v)
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&unigrams[k]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/trainer.rs:210:23
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn to_string_from(self, normalized: &str) -> String {
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/trainer.rs:220:12
[INFO] [stderr]     |
[INFO] [stderr] 220 |         && sentence.trim().len() > 0
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!sentence.trim().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 deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]    --> src/main.rs:149:26
[INFO] [stderr]     |
[INFO] [stderr] 149 |     for failure in error.causes() {
[INFO] [stderr]     |                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[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/main.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 | /         match do_train(input_filenames, output_filename) {
[INFO] [stderr] 76 | |             Err(error) => print_error(error),
[INFO] [stderr] 77 | |             Ok(_) => {}
[INFO] [stderr] 78 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(error) = do_train(input_filenames, output_filename) { print_error(error) }`
[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/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 | /         match do_truecase(model_filename, input_filename, output_filename) {
[INFO] [stderr] 88 | |             Err(error) => print_error(error),
[INFO] [stderr] 89 | |             Ok(_) => {}
[INFO] [stderr] 90 | |         };
[INFO] [stderr]    | |_________^ help: try this: `if let Err(error) = do_truecase(model_filename, input_filename, output_filename) { print_error(error) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]   --> src/trainer.rs:99:59
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 .map(|whatever| join_with_spaces(whatever.into_iter()));
[INFO] [stderr]    |                                                           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]    --> src/trainer.rs:102:59
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 .map(|whatever| join_with_spaces(whatever.into_iter()));
[INFO] [stderr]     |                                                           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/trainer.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 .any(|(k, v)| *bigrams.get(&k).unwrap() != v)
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&bigrams[&k]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/trainer.rs:114:31
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 .any(|(k, v)| unigrams.get(k).unwrap() != v)
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&unigrams[k]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/trainer.rs:210:23
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn to_string_from(self, normalized: &str) -> String {
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/trainer.rs:220:12
[INFO] [stderr]     |
[INFO] [stderr] 220 |         && sentence.trim().len() > 0
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!sentence.trim().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 deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]    --> src/main.rs:149:26
[INFO] [stderr]     |
[INFO] [stderr] 149 |     for failure in error.causes() {
[INFO] [stderr]     |                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[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/main.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 | /         match do_train(input_filenames, output_filename) {
[INFO] [stderr] 76 | |             Err(error) => print_error(error),
[INFO] [stderr] 77 | |             Ok(_) => {}
[INFO] [stderr] 78 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(error) = do_train(input_filenames, output_filename) { print_error(error) }`
[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/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 | /         match do_truecase(model_filename, input_filename, output_filename) {
[INFO] [stderr] 88 | |             Err(error) => print_error(error),
[INFO] [stderr] 89 | |             Ok(_) => {}
[INFO] [stderr] 90 | |         };
[INFO] [stderr]    | |_________^ help: try this: `if let Err(error) = do_truecase(model_filename, input_filename, output_filename) { print_error(error) }`
[INFO] [stderr]    |
[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 12.10s
[INFO] running `"docker" "inspect" "d00582ff5cf0131bc035bb9e31a0742b86796cdc2cb00ccc678d8cd2b002562a"`
[INFO] running `"docker" "rm" "-f" "d00582ff5cf0131bc035bb9e31a0742b86796cdc2cb00ccc678d8cd2b002562a"`
[INFO] [stdout] d00582ff5cf0131bc035bb9e31a0742b86796cdc2cb00ccc678d8cd2b002562a