[INFO] cloning repository https://github.com/samdoiron/lithp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samdoiron/lithp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2Flithp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2Flithp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3230eaacd3a82327960d1a244213fa1535f9dc7
[INFO] checking samdoiron/lithp against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamdoiron%2Flithp" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samdoiron/lithp on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samdoiron/lithp
[INFO] finished tweaking git repo https://github.com/samdoiron/lithp
[INFO] tweaked toml for git repo https://github.com/samdoiron/lithp written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/samdoiron/lithp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7165ac0f5ae7cf02f897fa333f202c26f9d14bfdf988e222369ecea1beaaa1c5
[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" "7165ac0f5ae7cf02f897fa333f202c26f9d14bfdf988e222369ecea1beaaa1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7165ac0f5ae7cf02f897fa333f202c26f9d14bfdf988e222369ecea1beaaa1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7165ac0f5ae7cf02f897fa333f202c26f9d14bfdf988e222369ecea1beaaa1c5", kill_on_drop: false }`
[INFO] [stdout] 7165ac0f5ae7cf02f897fa333f202c26f9d14bfdf988e222369ecea1beaaa1c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTUP_TOOLCHAIN=3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/tmp/crater-runner-fifo/jobserver-crater-fwd" "/opt/rustwide/cargo-home/bin/cargo" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be556569367dc75c98ad0d50e507df504b59fc69e3752ce773b86128b07eabc0
[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" "be556569367dc75c98ad0d50e507df504b59fc69e3752ce773b86128b07eabc0", kill_on_drop: false }`
[INFO] [stderr]     Checking lithp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:31:32
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 evaluated.push(try!(eval_atom(scope.clone(), atom)));
[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/eval.rs:64:40
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         evaluated.push(try!(eval_atom(scope.clone(), atom)));
[INFO] [stdout]    |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:82:39
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let value = try!(eval_atom(scope.clone(), expression));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:96:39
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let value = try!(eval_atom(new_scope.clone(), expression));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:129:37
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:188:43
[INFO] [stdout]     |
[INFO] [stdout] 188 |                 let evaluated_condition = try!(eval_atom(scope.clone(),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn math(start: i64, reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom])
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:302:24
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn math_first(reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom]) 
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:325:45
[INFO] [stdout]     |
[INFO] [stdout] 325 | fn binary_int_predicate(args: &[Atom], op: &Fn(i64, i64) -> bool) -> BasicResult<Atom> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:359:23
[INFO] [stdout]     |
[INFO] [stdout] 359 |         bindings.push(try!(extract_binding(atom)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/tokenizer.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let token = try!(match_token(token));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 try!(fmt.write_str("( "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |                     try!(atom.fmt(fmt));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     try!(fmt.write_char(' '));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(fmt.write_str(")"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 try!(fmt.write_str("' "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let atoms = try!(self.parse_atoms());
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:102:20
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let body = try!(self.parse_list_body());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:31:32
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 evaluated.push(try!(eval_atom(scope.clone(), atom)));
[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/eval.rs:64:40
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         evaluated.push(try!(eval_atom(scope.clone(), atom)));
[INFO] [stdout]    |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:82:39
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let value = try!(eval_atom(scope.clone(), expression));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:96:39
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let (binding_list, expressions) = try!(split_let_body(cdr));
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/eval.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let bindings = try!(extract_bindings(binding_list.clone()));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let value = try!(eval_atom(new_scope.clone(), expression));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:129:37
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let evaluated = try!(eval_atom(scope.clone(), cdr[1].clone()));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:188:43
[INFO] [stdout]     |
[INFO] [stdout] 188 |                 let evaluated_condition = try!(eval_atom(scope.clone(),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let evaluated = try!(eval_atom(scope.clone(), arg.clone()));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn math(start: i64, reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom])
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:302:24
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn math_first(reduce: &Fn(i64, &i64) -> i64, cdr: &[Atom]) 
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, &i64) -> i64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/eval.rs:325:45
[INFO] [stdout]     |
[INFO] [stdout] 325 | fn binary_int_predicate(args: &[Atom], op: &Fn(i64, i64) -> bool) -> BasicResult<Atom> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(i64, i64) -> bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/eval.rs:359:23
[INFO] [stdout]     |
[INFO] [stdout] 359 |         bindings.push(try!(extract_binding(atom)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/tokenizer.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let token = try!(match_token(token));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 try!(fmt.write_str("( "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |                     try!(atom.fmt(fmt));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 |                     try!(fmt.write_char(' '));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(fmt.write_str(")"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 try!(fmt.write_str("' "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:76:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let atoms = try!(self.parse_atoms());
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let atom = try!(self.parse_atom());
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parser.rs:102:20
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let body = try!(self.parse_list_body());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "be556569367dc75c98ad0d50e507df504b59fc69e3752ce773b86128b07eabc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be556569367dc75c98ad0d50e507df504b59fc69e3752ce773b86128b07eabc0", kill_on_drop: false }`
[INFO] [stdout] be556569367dc75c98ad0d50e507df504b59fc69e3752ce773b86128b07eabc0