[INFO] fetching crate kravl-parser 0.3.3...
[INFO] testing kravl-parser-0.3.3 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate kravl-parser 0.3.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate kravl-parser 0.3.3 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kravl-parser 0.3.3
[INFO] finished tweaking crates.io crate kravl-parser 0.3.3
[INFO] tweaked toml for crates.io crate kravl-parser 0.3.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21631e7ad1b99e8537364ad7a3aeb9fefc8f8d3343e8ac012030428742c691c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "21631e7ad1b99e8537364ad7a3aeb9fefc8f8d3343e8ac012030428742c691c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21631e7ad1b99e8537364ad7a3aeb9fefc8f8d3343e8ac012030428742c691c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21631e7ad1b99e8537364ad7a3aeb9fefc8f8d3343e8ac012030428742c691c2", kill_on_drop: false }`
[INFO] [stdout] 21631e7ad1b99e8537364ad7a3aeb9fefc8f8d3343e8ac012030428742c691c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 090ae7adfb6146b0d99241f6cdac852528ab07b1627c44bd7e3e29c4bd1ba431
[INFO] running `Command { std: "docker" "start" "-a" "090ae7adfb6146b0d99241f6cdac852528ab07b1627c44bd7e3e29c4bd1ba431", kill_on_drop: false }`
[INFO] [stderr]    Compiling kravl-parser v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/syntax/ast.rs:70:24
[INFO] [stdout]    |
[INFO] [stdout] 70 |         expr_list.push(try!(self.parse_word()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/syntax/ast.rs:99:36
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     expr_list.push(try!(self.parse_word()));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:106:32
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 expr_list.push(try!(self.parse_word()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:156:28
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:226:17
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 try!(self.lexer.match_current_token(TokenType::Colon));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:230:34
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let block_stmt = try!(self.parse_statement());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 try!(self.lexer.match_current_token(TokenType::LParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:267:17
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:288:34
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 let block_body = try!(self.parse_block());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:301:28
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:322:32
[INFO] [stdout]     |
[INFO] [stdout] 322 |                     let expr = try!(self.parse_expression());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:329:28
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:337:33
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 let condition = try!(self.parse_expression());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:341:28
[INFO] [stdout]     |
[INFO] [stdout] 341 |                 let body = try!(self.parse_block());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:348:37
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     let else_body = try!(self.parse_block());
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:364:28
[INFO] [stdout]     |
[INFO] [stdout] 364 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:378:34
[INFO] [stdout]     |
[INFO] [stdout] 378 |             statement_stack.push(try!(self.parse_statement()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         try!(self.lexer.match_current_token(TokenType::Do));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         try!(self.lexer.match_current_token(TokenType::End));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:412:20
[INFO] [stdout]     |
[INFO] [stdout] 412 |         let expr = try!(self.parse_word());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:434:24
[INFO] [stdout]     |
[INFO] [stdout] 434 |             stack.push(try!(self.parse_expression()));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "090ae7adfb6146b0d99241f6cdac852528ab07b1627c44bd7e3e29c4bd1ba431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "090ae7adfb6146b0d99241f6cdac852528ab07b1627c44bd7e3e29c4bd1ba431", kill_on_drop: false }`
[INFO] [stdout] 090ae7adfb6146b0d99241f6cdac852528ab07b1627c44bd7e3e29c4bd1ba431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4852217ecb896501419fe422025f9be9111a176681a1729dcc93a1b2114600f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4852217ecb896501419fe422025f9be9111a176681a1729dcc93a1b2114600f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling kravl-parser v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/syntax/ast.rs:70:24
[INFO] [stdout]    |
[INFO] [stdout] 70 |         expr_list.push(try!(self.parse_word()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/syntax/ast.rs:99:36
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     expr_list.push(try!(self.parse_word()));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:106:32
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 expr_list.push(try!(self.parse_word()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:156:28
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:226:17
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 try!(self.lexer.match_current_token(TokenType::Colon));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:230:34
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let block_stmt = try!(self.parse_statement());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 try!(self.lexer.match_current_token(TokenType::LParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:267:17
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:288:34
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 let block_body = try!(self.parse_block());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:301:28
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:322:32
[INFO] [stdout]     |
[INFO] [stdout] 322 |                     let expr = try!(self.parse_expression());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:329:28
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:337:33
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 let condition = try!(self.parse_expression());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:341:28
[INFO] [stdout]     |
[INFO] [stdout] 341 |                 let body = try!(self.parse_block());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:348:37
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     let else_body = try!(self.parse_block());
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:364:28
[INFO] [stdout]     |
[INFO] [stdout] 364 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:378:34
[INFO] [stdout]     |
[INFO] [stdout] 378 |             statement_stack.push(try!(self.parse_statement()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         try!(self.lexer.match_current_token(TokenType::Do));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         try!(self.lexer.match_current_token(TokenType::End));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:412:20
[INFO] [stdout]     |
[INFO] [stdout] 412 |         let expr = try!(self.parse_word());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:434:24
[INFO] [stdout]     |
[INFO] [stdout] 434 |             stack.push(try!(self.parse_expression()));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/syntax/ast.rs:70:24
[INFO] [stdout]    |
[INFO] [stdout] 70 |         expr_list.push(try!(self.parse_word()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/syntax/ast.rs:99:36
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     expr_list.push(try!(self.parse_word()));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:106:32
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 expr_list.push(try!(self.parse_word()));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:156:28
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:226:17
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 try!(self.lexer.match_current_token(TokenType::Colon));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:230:34
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let block_stmt = try!(self.parse_statement());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 try!(self.lexer.match_current_token(TokenType::LParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:267:17
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:288:34
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 let block_body = try!(self.parse_block());
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:301:28
[INFO] [stdout]     |
[INFO] [stdout] 301 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:322:32
[INFO] [stdout]     |
[INFO] [stdout] 322 |                     let expr = try!(self.parse_expression());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:329:28
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:337:33
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 let condition = try!(self.parse_expression());
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:341:28
[INFO] [stdout]     |
[INFO] [stdout] 341 |                 let body = try!(self.parse_block());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:348:37
[INFO] [stdout]     |
[INFO] [stdout] 348 |                     let else_body = try!(self.parse_block());
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:364:28
[INFO] [stdout]     |
[INFO] [stdout] 364 |                 let expr = try!(self.parse_expression());
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:378:34
[INFO] [stdout]     |
[INFO] [stdout] 378 |             statement_stack.push(try!(self.parse_statement()));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |         try!(self.lexer.match_current_token(TokenType::Do));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         try!(self.lexer.match_current_token(TokenType::End));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:412:20
[INFO] [stdout]     |
[INFO] [stdout] 412 |         let expr = try!(self.parse_word());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/syntax/ast.rs:434:24
[INFO] [stdout]     |
[INFO] [stdout] 434 |             stack.push(try!(self.parse_expression()));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]   --> src/syntax/mod.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let stack = parser.parse_full();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/syntax/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | /         lexer.tokenize(String::from("
[INFO] [stdout] 14 | |             define fib_sum(a -> int, b -> int) -> int
[INFO] [stdout] 15 | |                 if a + b <= 2
[INFO] [stdout] 16 | |                     return c
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |             end
[INFO] [stdout] 21 | |         "));
[INFO] [stdout]    | |____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/syntax/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         lexer.tokenize(String::from("
[INFO] [stdout] 34 | |             foo = \"hey aywa\"
[INFO] [stdout] 35 | |             foo = 22.2
[INFO] [stdout] 36 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |             sum = 1337 - 2 - 10.2 * 100
[INFO] [stdout] 42 | |         "));
[INFO] [stdout]    | |____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "4852217ecb896501419fe422025f9be9111a176681a1729dcc93a1b2114600f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4852217ecb896501419fe422025f9be9111a176681a1729dcc93a1b2114600f1", kill_on_drop: false }`
[INFO] [stdout] 4852217ecb896501419fe422025f9be9111a176681a1729dcc93a1b2114600f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ad16f2371faad11297696a38c018495fc2326962094dcc4bc8f778f6054f9e8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1ad16f2371faad11297696a38c018495fc2326962094dcc4bc8f778f6054f9e8", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/syntax/ast.rs:70:24
[INFO] [stderr]    |
[INFO] [stderr] 70 |         expr_list.push(try!(self.parse_word()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/syntax/ast.rs:99:36
[INFO] [stderr]    |
[INFO] [stderr] 99 |                     expr_list.push(try!(self.parse_word()));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 expr_list.push(try!(self.parse_word()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:156:28
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:226:17
[INFO] [stderr]     |
[INFO] [stderr] 226 |                 try!(self.lexer.match_current_token(TokenType::Colon));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:230:34
[INFO] [stderr]     |
[INFO] [stderr] 230 |                 let block_stmt = try!(self.parse_statement());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 251 |                 try!(self.lexer.match_current_token(TokenType::LParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:267:17
[INFO] [stderr]     |
[INFO] [stderr] 267 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:288:34
[INFO] [stderr]     |
[INFO] [stderr] 288 |                 let block_body = try!(self.parse_block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:301:28
[INFO] [stderr]     |
[INFO] [stderr] 301 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:322:32
[INFO] [stderr]     |
[INFO] [stderr] 322 |                     let expr = try!(self.parse_expression());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:329:28
[INFO] [stderr]     |
[INFO] [stderr] 329 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:337:33
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 let condition = try!(self.parse_expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:341:28
[INFO] [stderr]     |
[INFO] [stderr] 341 |                 let body = try!(self.parse_block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:348:37
[INFO] [stderr]     |
[INFO] [stderr] 348 |                     let else_body = try!(self.parse_block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:364:28
[INFO] [stderr]     |
[INFO] [stderr] 364 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:378:34
[INFO] [stderr]     |
[INFO] [stderr] 378 |             statement_stack.push(try!(self.parse_statement()));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 |         try!(self.lexer.match_current_token(TokenType::Do));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:406:9
[INFO] [stderr]     |
[INFO] [stderr] 406 |         try!(self.lexer.match_current_token(TokenType::End));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:412:20
[INFO] [stderr]     |
[INFO] [stderr] 412 |         let expr = try!(self.parse_word());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:434:24
[INFO] [stderr]     |
[INFO] [stderr] 434 |             stack.push(try!(self.parse_expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/syntax/ast.rs:70:24
[INFO] [stderr]    |
[INFO] [stderr] 70 |         expr_list.push(try!(self.parse_word()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/syntax/ast.rs:99:36
[INFO] [stderr]    |
[INFO] [stderr] 99 |                     expr_list.push(try!(self.parse_word()));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 expr_list.push(try!(self.parse_word()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:156:28
[INFO] [stderr]     |
[INFO] [stderr] 156 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:226:17
[INFO] [stderr]     |
[INFO] [stderr] 226 |                 try!(self.lexer.match_current_token(TokenType::Colon));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:230:34
[INFO] [stderr]     |
[INFO] [stderr] 230 |                 let block_stmt = try!(self.parse_statement());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 251 |                 try!(self.lexer.match_current_token(TokenType::LParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:267:17
[INFO] [stderr]     |
[INFO] [stderr] 267 |                 try!(self.lexer.match_current_token(TokenType::RParen));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:288:34
[INFO] [stderr]     |
[INFO] [stderr] 288 |                 let block_body = try!(self.parse_block());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:301:28
[INFO] [stderr]     |
[INFO] [stderr] 301 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:322:32
[INFO] [stderr]     |
[INFO] [stderr] 322 |                     let expr = try!(self.parse_expression());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:329:28
[INFO] [stderr]     |
[INFO] [stderr] 329 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:337:33
[INFO] [stderr]     |
[INFO] [stderr] 337 |                 let condition = try!(self.parse_expression());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:341:28
[INFO] [stderr]     |
[INFO] [stderr] 341 |                 let body = try!(self.parse_block());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:348:37
[INFO] [stderr]     |
[INFO] [stderr] 348 |                     let else_body = try!(self.parse_block());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:364:28
[INFO] [stderr]     |
[INFO] [stderr] 364 |                 let expr = try!(self.parse_expression());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:378:34
[INFO] [stderr]     |
[INFO] [stderr] 378 |             statement_stack.push(try!(self.parse_statement()));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 |         try!(self.lexer.match_current_token(TokenType::Do));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:406:9
[INFO] [stderr]     |
[INFO] [stderr] 406 |         try!(self.lexer.match_current_token(TokenType::End));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:412:20
[INFO] [stderr]     |
[INFO] [stderr] 412 |         let expr = try!(self.parse_word());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/syntax/ast.rs:434:24
[INFO] [stderr]     |
[INFO] [stderr] 434 |             stack.push(try!(self.parse_expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/syntax/mod.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let stack = parser.parse_full();
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/syntax/mod.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | /         lexer.tokenize(String::from("
[INFO] [stderr] 14 | |             define fib_sum(a -> int, b -> int) -> int
[INFO] [stderr] 15 | |                 if a + b <= 2
[INFO] [stderr] 16 | |                     return c
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |             end
[INFO] [stderr] 21 | |         "));
[INFO] [stderr]    | |____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/syntax/mod.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 | /         lexer.tokenize(String::from("
[INFO] [stderr] 34 | |             foo = \"hey aywa\"
[INFO] [stderr] 35 | |             foo = 22.2
[INFO] [stderr] 36 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |             sum = 1337 - 2 - 10.2 * 100
[INFO] [stderr] 42 | |         "));
[INFO] [stderr]    | |____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kravl_parser-d4052b85e16ab8d6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kravl_parser
[INFO] [stdout] running 2 tests
[INFO] [stdout] test syntax::tests::parser_tokenize ... ok
[INFO] [stdout] test syntax::tests::lexer_tokenize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1ad16f2371faad11297696a38c018495fc2326962094dcc4bc8f778f6054f9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad16f2371faad11297696a38c018495fc2326962094dcc4bc8f778f6054f9e8", kill_on_drop: false }`
[INFO] [stdout] 1ad16f2371faad11297696a38c018495fc2326962094dcc4bc8f778f6054f9e8