[INFO] updating cached repository https://github.com/mklf/word2vec-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d36231eb0f17b404dc414840d016738bd713995c
[INFO] checking mklf/word2vec-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmklf%2Fword2vec-rs" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mklf/word2vec-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mklf/word2vec-rs
[INFO] finished tweaking git repo https://github.com/mklf/word2vec-rs
[INFO] tweaked toml for git repo https://github.com/mklf/word2vec-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mklf/word2vec-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 173175ba8e865469c7f649e0c51e321024b1f226aa1a55b08e689b3d1b82083c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "173175ba8e865469c7f649e0c51e321024b1f226aa1a55b08e689b3d1b82083c"`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]    Compiling word2vec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking clap v2.20.5
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/dictionary.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let input_file = try!(File::open(filename));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:256:21
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let input = try!(train_info.value_of("input")
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:258:22
[INFO] [stderr]     |
[INFO] [stderr] 258 |         let output = try!(train_info.value_of("output")
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let win = try!(train_info.value_of("win").unwrap_or("5").parse::<usize>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:261:19
[INFO] [stderr]     |
[INFO] [stderr] 261 |         let neg = try!(train_info.value_of("neg").unwrap_or("5").parse::<usize>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:262:18
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let lr = try!(train_info.value_of("lr").unwrap_or("0.05").parse::<f32>());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:263:25
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let lr_update = try!(train_info.value_of("lr_update").unwrap_or("5000").parse::<u32>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:264:27
[INFO] [stderr]     |
[INFO] [stderr] 264 |         let vector_size = try!(train_info.value_of("dim").unwrap_or("100").parse::<usize>());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:265:21
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let epoch = try!(train_info.value_of("epoch").unwrap_or("5").parse::<u32>());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:266:25
[INFO] [stderr]     |
[INFO] [stderr] 266 |         let min_count = try!(train_info.value_of("min_count").unwrap_or("5").parse::<u32>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:267:24
[INFO] [stderr]     |
[INFO] [stderr] 267 |         let nthreads = try!(train_info.value_of("nthreads").unwrap_or("12").parse::<u32>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:268:25
[INFO] [stderr]     |
[INFO] [stderr] 268 |         let threshold = try!(train_info.value_of("threshold").unwrap_or("1e-4").parse::<f32>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:285:21
[INFO] [stderr]     |
[INFO] [stderr] 285 |         let input = try!(test_info.value_of("input")
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/train.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let input_file = try!(File::open(arg.input.clone()));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/train.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let input_file = try!(File::open(filename));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/train.rs:116:16
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let dict = try!(Dict::new_from_file(&args.input, args.min_count,
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/train.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(h.join().unwrap());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut file = try!(File::create(filename));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         try!(write!(&mut meta, "{} {}\n", size, self.dim));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(file.write_all(&meta));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |             try!(file.write(&word.into_bytes()[..]));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             try!(file.write(&s.into_bytes()[..]));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:57:28
[INFO] [stderr]    |
[INFO] [stderr] 57 |             let mut file = try!(File::create(filename.to_owned()+".vec"));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             try!(file.write(u8data));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/train.rs:6:38
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stderr]   |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/train.rs:12:33
[INFO] [stderr]    |
[INFO] [stderr] 12 | static ALL_WORDS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/dictionary.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let input_file = try!(File::open(filename));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:256:21
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let input = try!(train_info.value_of("input")
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:258:22
[INFO] [stderr]     |
[INFO] [stderr] 258 |         let output = try!(train_info.value_of("output")
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let win = try!(train_info.value_of("win").unwrap_or("5").parse::<usize>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:261:19
[INFO] [stderr]     |
[INFO] [stderr] 261 |         let neg = try!(train_info.value_of("neg").unwrap_or("5").parse::<usize>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:262:18
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let lr = try!(train_info.value_of("lr").unwrap_or("0.05").parse::<f32>());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:263:25
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let lr_update = try!(train_info.value_of("lr_update").unwrap_or("5000").parse::<u32>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:264:27
[INFO] [stderr]     |
[INFO] [stderr] 264 |         let vector_size = try!(train_info.value_of("dim").unwrap_or("100").parse::<usize>());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:265:21
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let epoch = try!(train_info.value_of("epoch").unwrap_or("5").parse::<u32>());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:266:25
[INFO] [stderr]     |
[INFO] [stderr] 266 |         let min_count = try!(train_info.value_of("min_count").unwrap_or("5").parse::<u32>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:267:24
[INFO] [stderr]     |
[INFO] [stderr] 267 |         let nthreads = try!(train_info.value_of("nthreads").unwrap_or("12").parse::<u32>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:268:25
[INFO] [stderr]     |
[INFO] [stderr] 268 |         let threshold = try!(train_info.value_of("threshold").unwrap_or("1e-4").parse::<f32>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/utils.rs:285:21
[INFO] [stderr]     |
[INFO] [stderr] 285 |         let input = try!(test_info.value_of("input")
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/train.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let input_file = try!(File::open(arg.input.clone()));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/train.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let input_file = try!(File::open(filename));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/train.rs:116:16
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let dict = try!(Dict::new_from_file(&args.input, args.min_count,
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/train.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(h.join().unwrap());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut file = try!(File::create(filename));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         try!(write!(&mut meta, "{} {}\n", size, self.dim));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(file.write_all(&meta));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |             try!(file.write(&word.into_bytes()[..]));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             try!(file.write(&s.into_bytes()[..]));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:57:28
[INFO] [stderr]    |
[INFO] [stderr] 57 |             let mut file = try!(File::create(filename.to_owned()+".vec"));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/w2v.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             try!(file.write(u8data));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/train.rs:6:38
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stderr]   |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/train.rs:12:33
[INFO] [stderr]    |
[INFO] [stderr] 12 | static ALL_WORDS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |             W2vError::File(ref err) => err.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:78:53
[INFO] [stderr]    |
[INFO] [stderr] 78 |             ArgumentError::ParseArg(ref err) => err.description(),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:79:55
[INFO] [stderr]    |
[INFO] [stderr] 79 |             ArgumentError::ParseFloat(ref err) => err.description(),
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:80:53
[INFO] [stderr]    |
[INFO] [stderr] 80 |             ArgumentError::ParseInt(ref err) => err.description(),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:30:44
[INFO] [stderr]    |
[INFO] [stderr] 30 |             W2vError::File(ref err) => err.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:78:53
[INFO] [stderr]    |
[INFO] [stderr] 78 |             ArgumentError::ParseArg(ref err) => err.description(),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:79:55
[INFO] [stderr]    |
[INFO] [stderr] 79 |             ArgumentError::ParseFloat(ref err) => err.description(),
[INFO] [stderr]    |                                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/utils.rs:80:53
[INFO] [stderr]    |
[INFO] [stderr] 80 |             ArgumentError::ParseInt(ref err) => err.description(),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/ffi.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 |                         e.description().as_bytes().to_vec()
[INFO] [stderr]    |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/ffi.rs:41:31
[INFO] [stderr]    |
[INFO] [stderr] 41 | ...                   e.description().as_bytes().to_vec()
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/ffi.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 |                         e.description().as_bytes().to_vec()
[INFO] [stderr]    |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/ffi.rs:41:31
[INFO] [stderr]    |
[INFO] [stderr] 41 | ...                   e.description().as_bytes().to_vec()
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/train.rs:155:29
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let w2v = Word2vec::new(unsafe { input.inner.into_inner() },
[INFO] [stderr]     |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/train.rs:156:29
[INFO] [stderr]     |
[INFO] [stderr] 156 | ...                   unsafe { output.inner.into_inner() },
[INFO] [stderr]     |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `syn1neg`
[INFO] [stderr]  --> src/w2v.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     syn1neg: Matrix,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/train.rs:155:29
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let w2v = Word2vec::new(unsafe { input.inner.into_inner() },
[INFO] [stderr]     |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/train.rs:156:29
[INFO] [stderr]     |
[INFO] [stderr] 156 | ...                   unsafe { output.inner.into_inner() },
[INFO] [stderr]     |                       ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `syn1neg`
[INFO] [stderr]  --> src/w2v.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     syn1neg: Matrix,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.35s
[INFO] running `"docker" "inspect" "173175ba8e865469c7f649e0c51e321024b1f226aa1a55b08e689b3d1b82083c"`
[INFO] running `"docker" "rm" "-f" "173175ba8e865469c7f649e0c51e321024b1f226aa1a55b08e689b3d1b82083c"`
[INFO] [stdout] 173175ba8e865469c7f649e0c51e321024b1f226aa1a55b08e689b3d1b82083c