[INFO] fetching crate perlin 0.1.0...
[INFO] testing perlin-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate perlin 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate perlin 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17b5469d2a19e15df18b73c5283ccc41a57e87298975aea2d55033af91bbb6f0
[INFO] running `Command { std: "docker" "start" "-a" "17b5469d2a19e15df18b73c5283ccc41a57e87298975aea2d55033af91bbb6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17b5469d2a19e15df18b73c5283ccc41a57e87298975aea2d55033af91bbb6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b5469d2a19e15df18b73c5283ccc41a57e87298975aea2d55033af91bbb6f0", kill_on_drop: false }`
[INFO] [stdout] 17b5469d2a19e15df18b73c5283ccc41a57e87298975aea2d55033af91bbb6f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfb0cc44006a00e990a602f41ac7e5f261dc4d660326238e9f0470b7c9043a3c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cfb0cc44006a00e990a602f41ac7e5f261dc4d660326238e9f0470b7c9043a3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling perlin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stdout]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         try!(index.index_documents(documents));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         try!(index.save_vocabulary());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         try!(index.save_statistics());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stdout]     |
[INFO] [stdout] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stdout]     |
[INFO] [stdout] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |         try!(index.index_documents(documents));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stdout]     |
[INFO] [stdout] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stdout]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:55:23
[INFO] [stdout]     |
[INFO] [stdout] 55  | #![deny(missing_docs, warnings)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/compression.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/compression.rs:55:51
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/mod.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "cfb0cc44006a00e990a602f41ac7e5f261dc4d660326238e9f0470b7c9043a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb0cc44006a00e990a602f41ac7e5f261dc4d660326238e9f0470b7c9043a3c", kill_on_drop: false }`
[INFO] [stdout] cfb0cc44006a00e990a602f41ac7e5f261dc4d660326238e9f0470b7c9043a3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 54ce9706b20a435e4eef6faf2219e99e19d15f4d624cfcfd46d45defe304e4ad
[INFO] running `Command { std: "docker" "start" "-a" "54ce9706b20a435e4eef6faf2219e99e19d15f4d624cfcfd46d45defe304e4ad", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stdout]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         try!(index.index_documents(documents));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         try!(index.save_vocabulary());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         try!(index.save_statistics());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stdout]     |
[INFO] [stdout] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stdout]     |
[INFO] [stdout] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |         try!(index.index_documents(documents));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stdout]     |
[INFO] [stdout] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stdout]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:55:23
[INFO] [stdout]     |
[INFO] [stdout] 55  | #![deny(missing_docs, warnings)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/compression.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/compression.rs:55:51
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/mod.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling perlin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stdout]   --> src/index/boolean_index/query_result_iterator/nary_query_iterator.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use index::boolean_index::boolean_query::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 |     postings: Box<Storage<Listing>>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type QueryResult = Box<Iterator<Item = u64>>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let vocab = try!(Self::load_vocabulary(path));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/index/boolean_index/mod.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let doc_count = try!(Self::load_statistics(path));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         try!(index.index_documents(documents));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         try!(index.save_vocabulary());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         try!(index.save_statistics());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:129:34
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let mut vocab_file = try!(OpenOptions::new()
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:150:21
[INFO] [stdout]     |
[INFO] [stdout] 150 |                     try!(vocab_file.write(&byte_buffer));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 try!(vocab_file.write(&byte_buffer));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:166:30
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut vocab_file = try!(OpenOptions::new().read(true).open(path.join(VOCAB_FILENAME)));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:167:24
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let metadata = try!(vocab_file.metadata());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(vocab_file.read_to_end(&mut bytes));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:191:39
[INFO] [stdout]     |
[INFO] [stdout] 191 |             let mut statistics_file = try!(OpenOptions::new()
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |             try!(statistics_file.write(&vbyte_encode(self.document_count)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:204:35
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut statistics_file = try!(OpenOptions::new().read(true).open(path.join(STATISTICS_FILENAME)));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         try!(statistics_file.read_to_end(&mut bytes));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |         try!(index.index_documents(documents));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:234:39
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn from_parts(inverted_index: Box<Storage<Listing>>,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage<Listing>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:294:13
[INFO] [stdout]     |
[INFO] [stdout] 294 |             try!(self.postings.store(term_id, listing));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:249:100
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn index_documents<TDocsIterator, TDocIterator>(&mut self, documents: TDocsIterator) -> Result<(usize)>
[INFO] [stdout]     |                                                                                                    ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:55:23
[INFO] [stdout]     |
[INFO] [stdout] 55  | #![deny(missing_docs, warnings)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `index::boolean_index::boolean_query::*`
[INFO] [stdout]    --> src/index/boolean_index/mod.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |     use index::boolean_index::boolean_query::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/compression.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     bytes: Box<Iterator<Item = u8> + 'a>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/compression.rs:55:51
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn underlying_iterator(&mut self) -> &mut Iterator<Item = u8> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/storage/mod.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "54ce9706b20a435e4eef6faf2219e99e19d15f4d624cfcfd46d45defe304e4ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54ce9706b20a435e4eef6faf2219e99e19d15f4d624cfcfd46d45defe304e4ad", kill_on_drop: false }`
[INFO] [stdout] 54ce9706b20a435e4eef6faf2219e99e19d15f4d624cfcfd46d45defe304e4ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38624c176bb6115d614cd3a1f50e504f1ae1ade86425bcb4f4b9d90134d80fcb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "38624c176bb6115d614cd3a1f50e504f1ae1ade86425bcb4f4b9d90134d80fcb", kill_on_drop: false }`
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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: 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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `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: 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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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 macro `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: 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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `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: 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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/perlin-4fb0b9a2884280fb)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test index::boolean_index::query_builder::tests::in_order ... ok
[INFO] [stdout] test index::boolean_index::query_result_iterator::tests::peek ... ok
[INFO] [stdout] test index::boolean_index::query_result_iterator::tests::estimate_length ... ok
[INFO] [stdout] test index::boolean_index::tests::and_query ... ok
[INFO] [stdout] test index::boolean_index::tests::indexing ... ok
[INFO] [stdout] test index::boolean_index::tests::empty_query ... ok
[INFO] [stdout] test language::tests::tokenization ... ok
[INFO] [stdout] test storage::compression::tests::test_vbyte_decode ... ok
[INFO] [stdout] test storage::fs_storage::tests::basic ... ok
[INFO] [stdout] test index::boolean_index::query_builder::tests::nested_and ... ok
[INFO] [stdout] test storage::ram_storage::tests::basic ... ok
[INFO] [stdout] test index::boolean_index::tests::inorder_query ... ok
[INFO] [stdout] test storage::fs_storage::tests::not_found ... ok
[INFO] [stdout] test storage::ram_storage::tests::not_found ... ok
[INFO] [stdout] test storage::fs_storage::tests::persistence ... ok
[INFO] [stdout] test index::boolean_index::tests::nary_query ... ok
[INFO] [stdout] test index::boolean_index::query_builder::tests::and_query ... ok
[INFO] [stdout] test index::boolean_index::tests::or_query ... ok
[INFO] [stdout] test index::boolean_index::tests::query_atom ... ok
[INFO] [stdout] test storage::compression::tests::test_vbyte_encode ... ok
[INFO] [stdout] test index::boolean_index::query_builder::tests::not ... ok
[INFO] [stdout] test index::boolean_index::tests::persistence ... ok
[INFO] [stderr]      Running tests/boolean_index.rs (/opt/rustwide/target/debug/deps/boolean_index-322b49453594ff9e)
[INFO] [stdout] test index::boolean_index::tests::query_filter ... ok
[INFO] [stdout] test language::tests::lowercase ... ok
[INFO] [stdout] test language::tests::non_alphanum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/readme_usage.rs (/opt/rustwide/target/debug/deps/readme_usage-e53656275f680cb1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests perlin
[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; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/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]    --> /opt/rustwide/workdir/src/lib.rs:55:23
[INFO] [stderr]     |
[INFO] [stderr] 55  | #![deny(missing_docs, warnings)]
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     = note: `#[deny(unused_parens)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "38624c176bb6115d614cd3a1f50e504f1ae1ade86425bcb4f4b9d90134d80fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38624c176bb6115d614cd3a1f50e504f1ae1ade86425bcb4f4b9d90134d80fcb", kill_on_drop: false }`
[INFO] [stdout] 38624c176bb6115d614cd3a1f50e504f1ae1ade86425bcb4f4b9d90134d80fcb
