[INFO] updating cached repository https://github.com/nilq/helix
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 28e40d3292f5d8292e115f56ef0fe86f5a3d2d77
[INFO] testing nilq/helix against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Fhelix" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilq/helix on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nilq/helix
[INFO] finished tweaking git repo https://github.com/nilq/helix
[INFO] tweaked toml for git repo https://github.com/nilq/helix written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/nilq/helix already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+beta-2020-06-03" "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] a30b13832ab198d083b83364acbbe424e46e63cd3f762672c45ff0bb93f8a5d4
[INFO] running `"docker" "start" "-a" "a30b13832ab198d083b83364acbbe424e46e63cd3f762672c45ff0bb93f8a5d4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.23
[INFO] [stderr]    Compiling lazy_static v0.2.6
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling helix-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:98:22
[INFO] [stderr]    |
[INFO] [stderr] 98 |                    e.description())
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 39 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.65s
[INFO] running `"docker" "inspect" "a30b13832ab198d083b83364acbbe424e46e63cd3f762672c45ff0bb93f8a5d4"`
[INFO] running `"docker" "rm" "-f" "a30b13832ab198d083b83364acbbe424e46e63cd3f762672c45ff0bb93f8a5d4"`
[INFO] [stdout] a30b13832ab198d083b83364acbbe424e46e63cd3f762672c45ff0bb93f8a5d4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+beta-2020-06-03" "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] b2cf488f4adb1a111dc9f4e4e47d5a9839d74b0d96c9ad68cfa44c540b236412
[INFO] running `"docker" "start" "-a" "b2cf488f4adb1a111dc9f4e4e47d5a9839d74b0d96c9ad68cfa44c540b236412"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling helix-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:98:22
[INFO] [stderr]    |
[INFO] [stderr] 98 |                    e.description())
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 39 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "b2cf488f4adb1a111dc9f4e4e47d5a9839d74b0d96c9ad68cfa44c540b236412"`
[INFO] running `"docker" "rm" "-f" "b2cf488f4adb1a111dc9f4e4e47d5a9839d74b0d96c9ad68cfa44c540b236412"`
[INFO] [stdout] b2cf488f4adb1a111dc9f4e4e47d5a9839d74b0d96c9ad68cfa44c540b236412
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f755a8beff9b7488023672f02d5a23f45e8aed01f5efbd7478345bf9c57839dc
[INFO] running `"docker" "start" "-a" "f755a8beff9b7488023672f02d5a23f45e8aed01f5efbd7478345bf9c57839dc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:81:24
[INFO] [stderr]    |
[INFO] [stderr] 81 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/ast.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:125:35
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:154:24
[INFO] [stderr]     |
[INFO] [stderr] 154 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:171:21
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 |         try!(self.tokenizer.match_current(TokenType::Ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:181:21
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:189:21
[INFO] [stderr]     |
[INFO] [stderr] 189 |         let index = try!(self.expression());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         try!(self.tokenizer.match_current(TokenType::RBracket));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 |             TokenType::Period => Ok(try!(self.dot(expression))),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             TokenType::LParen => Ok(try!(self.call(expression))),            
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let ident = try!(self.term());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:278:34
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:302:28
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:319:44
[INFO] [stderr]     |
[INFO] [stderr] 319 |                     parent = Some(Box::new(try!(self.term())));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:324:28
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:336:28
[INFO] [stderr]     |
[INFO] [stderr] 336 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:348:28
[INFO] [stderr]     |
[INFO] [stderr] 348 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 try!(self.tokenizer.match_current(TokenType::Text));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:374:45
[INFO] [stderr]     |
[INFO] [stderr] 374 |                 Ok(Expression::Use(Box::new(try!(self.term()))))
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                         try!(self.tokenizer.match_current(TokenType::Colon));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     try!(self.tokenizer.match_current(TokenType::RParen));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:416:36
[INFO] [stderr]     |
[INFO] [stderr] 416 |                         let body = try!(self.block());
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:423:41
[INFO] [stderr]     |
[INFO] [stderr] 423 | ...                   let retty = try!(self.term());
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:429:48
[INFO] [stderr]     |
[INFO] [stderr] 429 | ...                   let body = try!(self.block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:449:48
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 Ok(Expression::Return(Box::new(try!(self.expression()))))
[INFO] [stderr]     |                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:482:38
[INFO] [stderr]     |
[INFO] [stderr] 482 |                     let expression = try!(self.expression());
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:489:34
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:501:17
[INFO] [stderr]     |
[INFO] [stderr] 501 |                 try!(self.tokenizer.match_current(TokenType::Assign));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:513:33
[INFO] [stderr]     |
[INFO] [stderr] 513 |                 let condition = try!(self.expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:517:28
[INFO] [stderr]     |
[INFO] [stderr] 517 |                 let body = try!(self.block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:524:37
[INFO] [stderr]     |
[INFO] [stderr] 524 |                     let else_body = try!(self.block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:539:34
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 let expression = try!(self.expression());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/ast.rs:547:20
[INFO] [stderr]     |
[INFO] [stderr] 547 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:98:22
[INFO] [stderr]    |
[INFO] [stderr] 98 |                    e.description())
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 39 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/helix_lang-2d0d9814d260fe39
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/helix_lang-610de1b928dfd650
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests helix-lang
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f755a8beff9b7488023672f02d5a23f45e8aed01f5efbd7478345bf9c57839dc"`
[INFO] running `"docker" "rm" "-f" "f755a8beff9b7488023672f02d5a23f45e8aed01f5efbd7478345bf9c57839dc"`
[INFO] [stdout] f755a8beff9b7488023672f02d5a23f45e8aed01f5efbd7478345bf9c57839dc