[INFO] crate perlin 0.1.0 is already in cache
[INFO] testing perlin-0.1.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate perlin 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate perlin 0.1.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate perlin 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate perlin 0.1.0
[INFO] tweaked toml for crates.io crate perlin 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bfdb3d219f41adc0fbaa38fd0cf1a283609bfb3acab9680cf1212ab810efd4e4
[INFO] running `"docker" "start" "-a" "bfdb3d219f41adc0fbaa38fd0cf1a283609bfb3acab9680cf1212ab810efd4e4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling perlin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |         try!(index.save_vocabulary());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         try!(index.save_statistics());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stderr]     |
[INFO] [stderr] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stderr]     |
[INFO] [stderr] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stderr]    |
[INFO] [stderr] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stderr]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:55:23
[INFO] [stderr]     |
[INFO] [stderr] 55  | #![deny(missing_docs, warnings)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:55:51
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/mod.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "bfdb3d219f41adc0fbaa38fd0cf1a283609bfb3acab9680cf1212ab810efd4e4"`
[INFO] running `"docker" "rm" "-f" "bfdb3d219f41adc0fbaa38fd0cf1a283609bfb3acab9680cf1212ab810efd4e4"`
[INFO] [stdout] bfdb3d219f41adc0fbaa38fd0cf1a283609bfb3acab9680cf1212ab810efd4e4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 852d5b50ef664ffd673715c6d10261b2060c89653baa4dabb4b9c566e7751d5a
[INFO] running `"docker" "start" "-a" "852d5b50ef664ffd673715c6d10261b2060c89653baa4dabb4b9c566e7751d5a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |         try!(index.save_vocabulary());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         try!(index.save_statistics());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stderr]     |
[INFO] [stderr] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stderr]     |
[INFO] [stderr] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stderr]    |
[INFO] [stderr] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stderr]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:55:23
[INFO] [stderr]     |
[INFO] [stderr] 55  | #![deny(missing_docs, warnings)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:55:51
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/mod.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling perlin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |         try!(index.save_vocabulary());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         try!(index.save_statistics());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stderr]     |
[INFO] [stderr] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stderr]     |
[INFO] [stderr] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stderr]    |
[INFO] [stderr] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stderr]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:55:23
[INFO] [stderr]     |
[INFO] [stderr] 55  | #![deny(missing_docs, warnings)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:365:9
[INFO] [stderr]     |
[INFO] [stderr] 365 |     use index::boolean_index::boolean_query::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:55:51
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/mod.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `"docker" "inspect" "852d5b50ef664ffd673715c6d10261b2060c89653baa4dabb4b9c566e7751d5a"`
[INFO] running `"docker" "rm" "-f" "852d5b50ef664ffd673715c6d10261b2060c89653baa4dabb4b9c566e7751d5a"`
[INFO] [stdout] 852d5b50ef664ffd673715c6d10261b2060c89653baa4dabb4b9c566e7751d5a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 32882e6a6d18cea561667fc055a3294c5014bc55e4f5c6cfa1500d39fad2ebfa
[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" "32882e6a6d18cea561667fc055a3294c5014bc55e4f5c6cfa1500d39fad2ebfa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |         try!(index.save_vocabulary());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         try!(index.save_statistics());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stderr]     |
[INFO] [stderr] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stderr]     |
[INFO] [stderr] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stderr]    |
[INFO] [stderr] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |         try!(index.save_vocabulary());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         try!(index.save_statistics());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stderr]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:55:23
[INFO] [stderr]     |
[INFO] [stderr] 55  | #![deny(missing_docs, warnings)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stderr]     |
[INFO] [stderr] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:55:51
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/mod.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stderr]     |
[INFO] [stderr] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         try!(index.index_documents(documents));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stderr]     |
[INFO] [stderr] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stderr]    |
[INFO] [stderr] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 | #![deny(missing_docs, warnings)]
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stderr]    |
[INFO] [stderr] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stderr]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:55:23
[INFO] [stderr]     |
[INFO] [stderr] 55  | #![deny(missing_docs, warnings)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stderr]    --> src/index/boolean_index/mod.rs:365:9
[INFO] [stderr]     |
[INFO] [stderr] 365 |     use index::boolean_index::boolean_query::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:41:16
[INFO] [stderr]    |
[INFO] [stderr] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/compression.rs:55:51
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/storage/mod.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/perlin-4cadfe1f48e15290
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test index::boolean_index::query_builder::tests::and_query ... ok
[INFO] [stdout] test index::boolean_index::query_builder::tests::nested_and ... ok
[INFO] [stdout] test index::boolean_index::query_builder::tests::in_order ... ok
[INFO] [stdout] test index::boolean_index::query_builder::tests::not ... ok
[INFO] [stdout] test index::boolean_index::query_result_iterator::tests::estimate_length ... ok
[INFO] [stdout] test index::boolean_index::tests::empty_query ... ok
[INFO] [stdout] test language::tests::non_alphanum ... ok
[INFO] [stdout] test index::boolean_index::tests::query_atom ... ok
[INFO] [stdout] test index::boolean_index::tests::query_filter ... ok
[INFO] [stdout] test language::tests::tokenization ... ok
[INFO] [stdout] test index::boolean_index::tests::indexing ... ok
[INFO] [stdout] test language::tests::lowercase ... ok
[INFO] [stdout] test storage::compression::tests::test_vbyte_decode ... ok
[INFO] [stdout] test index::boolean_index::tests::or_query ... ok
[INFO] [stdout] test index::boolean_index::tests::nary_query ... ok
[INFO] [stdout] test storage::fs_storage::tests::basic ... ok
[INFO] [stdout] test storage::compression::tests::test_vbyte_encode ... ok
[INFO] [stdout] test storage::fs_storage::tests::persistence ... ok
[INFO] [stdout] test storage::ram_storage::tests::basic ... ok
[INFO] [stdout] test index::boolean_index::tests::persistence ... ok
[INFO] [stdout] test storage::ram_storage::tests::not_found ... ok
[INFO] [stdout] test storage::fs_storage::tests::not_found ... ok
[INFO] [stdout] test index::boolean_index::tests::inorder_query ... ok
[INFO] [stdout] test index::boolean_index::tests::and_query ... ok
[INFO] [stdout] test index::boolean_index::query_result_iterator::tests::peek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/boolean_index-ca856a16b4251673
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test build_and_query_volatile_index ... ok
[INFO] [stdout] test build_and_query_persistent_index ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/readme_usage-b37aeccd984251e3
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests perlin
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/storage/compression.rs - storage::compression (line 12) ... ignored
[INFO] [stdout] test src/index/boolean_index/query_builder.rs - index::boolean_index::query_builder::QueryBuilder (line 9) ... ok
[INFO] [stdout] test src/index/boolean_index/query_builder.rs - index::boolean_index::query_builder::QueryBuilder (line 45) ... ok
[INFO] [stdout] test src/lib.rs -  (line 21) ... ok
[INFO] [stdout] test src/index/boolean_index/query_builder.rs - index::boolean_index::query_builder::QueryBuilder (line 29) ... ok
[INFO] [stdout] test src/index/boolean_index/query_builder.rs - index::boolean_index::query_builder::QueryBuilder (line 17) ... ok
[INFO] [stdout] test src/index/boolean_index/query_builder.rs - index::boolean_index::query_builder::QueryBuilder (line 56) ... ok
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "32882e6a6d18cea561667fc055a3294c5014bc55e4f5c6cfa1500d39fad2ebfa"`
[INFO] running `"docker" "rm" "-f" "32882e6a6d18cea561667fc055a3294c5014bc55e4f5c6cfa1500d39fad2ebfa"`
[INFO] [stdout] 32882e6a6d18cea561667fc055a3294c5014bc55e4f5c6cfa1500d39fad2ebfa