[INFO] fetching crate timi 0.2.1...
[INFO] checking timi-0.2.1 against master#03c609abb6638f9d7f49f34326d4137d07f5cd61 for pr-155945
[INFO] extracting crate timi 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate timi 0.2.1
[INFO] finished tweaking crates.io crate timi 0.2.1
[INFO] tweaked toml for crates.io crate timi 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate timi 0.2.1 on toolchain 03c609abb6638f9d7f49f34326d4137d07f5cd61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding ansi_term v0.9.0 (available: v0.12.1)
[INFO] [stderr]       Adding prettytable-rs v0.6.7 (available: v0.10.0)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.1)
[INFO] [stderr]       Adding rustyline v1.0.0 (available: v18.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prettytable-rs v0.6.7
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded csv v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f266bd87f237bfc5bdeb6d759983c67b93a7dc8b9031f791a76a03dd8bd8754
[INFO] running `Command { std: "docker" "start" "-a" "7f266bd87f237bfc5bdeb6d759983c67b93a7dc8b9031f791a76a03dd8bd8754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f266bd87f237bfc5bdeb6d759983c67b93a7dc8b9031f791a76a03dd8bd8754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f266bd87f237bfc5bdeb6d759983c67b93a7dc8b9031f791a76a03dd8bd8754", kill_on_drop: false }`
[INFO] [stdout] 7f266bd87f237bfc5bdeb6d759983c67b93a7dc8b9031f791a76a03dd8bd8754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08a5fcd8ed82c3feaf62068f4315cfefd5723aee900e4100a668d40951bf81bd
[INFO] running `Command { std: "docker" "start" "-a" "08a5fcd8ed82c3feaf62068f4315cfefd5723aee900e4100a668d40951bf81bd", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking prettytable-rs v0.6.7
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking timi v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 try!(write!(fmt, "{}(tag: {:#?}",
[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/machine.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     try!(write!(fmt, ")"))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     try!(write!(fmt, " | data: "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     try!(write!(fmt, ")"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:188:25
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         try!(write!(fmt, "{} ", format_addr_string(addr)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             try!(write!(fmt, "\t{} => {:#?}\n", format_addr_string(key), val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |         try!(m.setup_supercombinator_execution("main"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |         let main_addr = try!(self.globals
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:582:31
[INFO] [stdout]     |
[INFO] [stdout] 582 |         let tos_addr : Addr = try!(self.stack.peek());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:617:17
[INFO] [stdout]     |
[INFO] [stdout] 617 |                 try!(self.stack.pop());
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:622:17
[INFO] [stdout]     |
[INFO] [stdout] 622 |                 try!(run_supercombinator(self, sc_defn));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |                 try!(run_primitive_negate(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:629:17
[INFO] [stdout]     |
[INFO] [stdout] 629 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:633:17
[INFO] [stdout]     |
[INFO] [stdout] 633 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:637:17
[INFO] [stdout]     |
[INFO] [stdout] 637 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:641:17
[INFO] [stdout]     |
[INFO] [stdout] 641 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:646:17
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 try!(run_constructor(self, tag, arity));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:650:17
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:654:17
[INFO] [stdout]     |
[INFO] [stdout] 654 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:658:17
[INFO] [stdout]     |
[INFO] [stdout] 658 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:670:17
[INFO] [stdout]     |
[INFO] [stdout] 670 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:675:17
[INFO] [stdout]     |
[INFO] [stdout] 675 |                 try!(run_primitive_if(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |                 try!(run_primitive_case_pair(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:681:17
[INFO] [stdout]     |
[INFO] [stdout] 681 |                 try!(run_primitive_case_list(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:697:31
[INFO] [stdout]     |
[INFO] [stdout] 697 |                 let let_env = try!(instantiate_let_bindings(self, env, bindings));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:702:31
[INFO] [stdout]     |
[INFO] [stdout] 702 |                 let fn_addr = try!(self.instantiate(*fn_expr, env));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:703:32
[INFO] [stdout]     |
[INFO] [stdout] 703 |                 let arg_addr = try!(self.instantiate(*arg_expr, env));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:721:30
[INFO] [stdout]     |
[INFO] [stdout] 721 |                         tag: try!(raw_tag_to_data_tag(tag)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:802:29
[INFO] [stdout]     |
[INFO] [stdout] 802 |             let inst_addr = try!(m.instantiate(*bind_expr.clone(), &env));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:803:29
[INFO] [stdout]     |
[INFO] [stdout] 803 |             let fake_addr = try!(env.get(&bind_name)
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:967:5
[INFO] [stdout]     |
[INFO] [stdout] 967 |     try!(m.stack.pop());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:971:23
[INFO] [stdout]     |
[INFO] [stdout] 971 |     let neg_ap_addr = try!(m.stack.peek());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:976:15
[INFO] [stdout]     |
[INFO] [stdout] 976 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1026:9
[INFO] [stdout]      |
[INFO] [stdout] 1026 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1027:9
[INFO] [stdout]      |
[INFO] [stdout] 1027 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1028:9
[INFO] [stdout]      |
[INFO] [stdout] 1028 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:997:26
[INFO] [stdout]     |
[INFO] [stdout] 997 |         let if_ap_addr = try!(m.stack
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |         let then_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1008:28
[INFO] [stdout]      |
[INFO] [stdout] 1008 |         let else_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1014:19
[INFO] [stdout]      |
[INFO] [stdout] 1014 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1031:34
[INFO] [stdout]      |
[INFO] [stdout] 1031 |             let (_, then_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&then_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1036:34
[INFO] [stdout]      |
[INFO] [stdout] 1036 |             let (_, else_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&else_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1094:9
[INFO] [stdout]      |
[INFO] [stdout] 1094 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1095:9
[INFO] [stdout]      |
[INFO] [stdout] 1095 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1052:28
[INFO] [stdout]      |
[INFO] [stdout] 1052 |         let pair_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1058:36
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         let case_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1064:38
[INFO] [stdout]      |
[INFO] [stdout] 1064 |         let (_, case_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&case_handler_ap_addr)));
[INFO] [stdout]      |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1066:19
[INFO] [stdout]      |
[INFO] [stdout] 1066 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1129:29
[INFO] [stdout]      |
[INFO] [stdout] 1129 |         let param_ap_addr = try!(m.stack
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1135:35
[INFO] [stdout]      |
[INFO] [stdout] 1135 |         let nil_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1141:36
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         let cons_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1149:19
[INFO] [stdout]      |
[INFO] [stdout] 1149 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1165:45
[INFO] [stdout]      |
[INFO] [stdout] 1165 |                 let (_, nil_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&nil_handler_ap_addr)));
[INFO] [stdout]      |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1172:46
[INFO] [stdout]      |
[INFO] [stdout] 1172 |                 let (_, cons_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&cons_handler_ap_addr)));
[INFO] [stdout]      |                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1200:5
[INFO] [stdout]      |
[INFO] [stdout] 1200 |     try!(m.stack.pop());
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1205:28
[INFO] [stdout]      |
[INFO] [stdout] 1205 |         let left_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1206:15
[INFO] [stdout]      |
[INFO] [stdout] 1206 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1220:25
[INFO] [stdout]      |
[INFO] [stdout] 1220 |     let binop_ap_addr = try!(m.stack.peek());
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1222:15
[INFO] [stdout]      |
[INFO] [stdout] 1222 |         match try!(setup_heap_node_access(m, 
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1265:28
[INFO] [stdout]      |
[INFO] [stdout] 1265 |     let mut rewrite_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1288:27
[INFO] [stdout]      |
[INFO] [stdout] 1288 |         let arg_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1290:29
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         let (_, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&arg_ap_addr)));
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1309:19
[INFO] [stdout]      |
[INFO] [stdout] 1309 |     let sc_addr = try!(m.stack.pop());
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1317:24
[INFO] [stdout]      |
[INFO] [stdout] 1317 |             addrs.push(try!(m.stack.pop()));
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1322:15
[INFO] [stdout]      |
[INFO] [stdout] 1322 |     let env = try!(make_supercombinator_env(&sc_defn,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1327:26
[INFO] [stdout]      |
[INFO] [stdout] 1327 |     let new_alloc_addr = try!(m.instantiate(sc_defn.body.clone(), &env));
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1383:35
[INFO] [stdout]      |
[INFO] [stdout] 1383 |             let (_, param_addr) = try!(unwrap_heap_node_to_ap(application));
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1420:31
[INFO] [stdout]      |
[INFO] [stdout] 1420 |     let (fn_addr, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&ap_addr))); 
[INFO] [stdout]      |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1445:25
[INFO] [stdout]      |
[INFO] [stdout] 1445 |     let access_result = try!(access_handler(arg));
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1478:24
[INFO] [stdout]      |
[INFO] [stdout] 1478 |             let left = try!(component_addrs.get(0).ok_or(format!(
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1480:25
[INFO] [stdout]      |
[INFO] [stdout] 1480 |             let right = try!(component_addrs.get(1).ok_or(format!(
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1502:26
[INFO] [stdout]      |
[INFO] [stdout] 1502 |             let x_addr = try!(component_addrs.get(0).cloned().ok_or(format!(
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1504:27
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             let xs_addr = try!(component_addrs.get(1).cloned().ok_or(format!(
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]     --> src/machine.rs:1507:16
[INFO] [stdout]      |
[INFO] [stdout] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout]      |                ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1507 -             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout] 1507 +             Ok(ListAccess::Cons(x_addr, xs_addr))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 392 |                     try!(self.consume(&format!("consuming matching token: {}", possible_match)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:526:27
[INFO] [stdout]     |
[INFO] [stdout] 526 |     let (range, op_str) = try!(cursor.consume_longest_match(keys));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:571:18
[INFO] [stdout]     |
[INFO] [stdout] 571 |     let (_, c) = try!(cursor.consume("consuming alphabet token"));
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |             tokens.push(try!(parse_identifier(&mut cursor)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:620:25
[INFO] [stdout]     |
[INFO] [stdout] 620 |             let symbol= try!(tokenize_symbol(&mut cursor));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:669:11
[INFO] [stdout]     |
[INFO] [stdout] 669 |     match try!(c.consume("parsing atomic expression")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:671:23
[INFO] [stdout]     |
[INFO] [stdout] 671 |             let num = try!(parse_string_as_int(range, num_str));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:680:13
[INFO] [stdout]     |
[INFO] [stdout] 680 |             try!(c.expect(CoreToken::CloseRoundBracket, "looking for ) for matching ("));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:678:30
[INFO] [stdout]     |
[INFO] [stdout] 678 |             let inner_expr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:697:11
[INFO] [stdout]     |
[INFO] [stdout] 697 |     match try!(c.consume("looking for identifier of let binding LHS")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             try!(c.expect(CoreToken::Assignment, "expected = after name in let bindings"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:700:34
[INFO] [stdout]     |
[INFO] [stdout] 700 |             let rhs : CoreExpr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:715:5
[INFO] [stdout]     |
[INFO] [stdout] 715 |     try!(c.expect(CoreToken::Let, "expected let"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:735:5
[INFO] [stdout]     |
[INFO] [stdout] 735 |     try!(c.expect(CoreToken::In, "expected <in> after let bindings"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:721:20
[INFO] [stdout]     |
[INFO] [stdout] 721 |         let defn = try!(parse_defn(&mut c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:727:13
[INFO] [stdout]     |
[INFO] [stdout] 727 |             try!(c.expect(CoreToken::Semicolon, "expected ; since peek() returned ;"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:738:20
[INFO] [stdout]     |
[INFO] [stdout] 738 |     let rhs_expr = try!(parse_expr(c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:752:5
[INFO] [stdout]     |
[INFO] [stdout] 752 |     try!(c.expect(CoreToken::Pack, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:753:5
[INFO] [stdout]     |
[INFO] [stdout] 753 |     try!(c.expect(CoreToken::OpenCurlyBracket, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:764:5
[INFO] [stdout]     |
[INFO] [stdout] 764 |     try!(c.expect(CoreToken::Comma, "expected , after <tag> in Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:776:5
[INFO] [stdout]     |
[INFO] [stdout] 776 |     try!(c.expect(CoreToken::CloseCurlyBracket, "expecting closing curly bracket for Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:755:27
[INFO] [stdout]     |
[INFO] [stdout] 755 |     let tag : u32 = match try!(c.consume(pack_grammar)) {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:757:13
[INFO] [stdout]     |
[INFO] [stdout] 757 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:766:29
[INFO] [stdout]     |
[INFO] [stdout] 766 |     let arity : u32 = match try!(c.consume("expected arity after , in Pack")) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:799:33
[INFO] [stdout]     |
[INFO] [stdout] 799 |                 let pack_expr = try!(parse_pack(&mut cursor));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:805:39
[INFO] [stdout]     |
[INFO] [stdout] 805 |                     let atomic_expr = try!(parse_atomic_expr(&mut cursor));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:858:31
[INFO] [stdout]     |
[INFO] [stdout] 858 |     let lhs_expr : CoreExpr = try!(lhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             try!(cursor.expect(c, &format!("parsing binary operator {:#?}", op_var)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:869:23
[INFO] [stdout]     |
[INFO] [stdout] 869 |             let rhs = try!(rhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:979:25
[INFO] [stdout]     |
[INFO] [stdout] 979 |     let sc_name = match try!(c.consume("parsing supercombinator, looking for name")) {
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:990:15
[INFO] [stdout]     |
[INFO] [stdout] 990 |         match try!(c.consume("looking for <args>* =")) {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1004:19
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     let sc_body = try!(parse_expr(&mut c));
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1016:44
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1024:44
[INFO] [stdout]      |
[INFO] [stdout] 1024 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1034:44
[INFO] [stdout]      |
[INFO] [stdout] 1034 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1048:18
[INFO] [stdout]      |
[INFO] [stdout] 1048 |         let sc = try!(parse_supercombinator(&mut cursor));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1057:17
[INFO] [stdout]      |
[INFO] [stdout] 1057 |                 try!(cursor.expect(CoreToken::Semicolon, "parsing supercombinator"));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 try!(write!(fmt, "let"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 try!(write!(fmt, " {{\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 try!(write!(fmt, "in\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(write!(fmt, "{:#?}", expr));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                     try!(write!(fmt, "{} = {:#?}\n", name, expr));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         try!(write!(fmt, "{} ", &self.name));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(fmt, "= {{ {:#?} }}", self.body));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             try!(write!(fmt, "{} ", &arg));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/pretty_print.rs:100:6
[INFO] [stdout]     |
[INFO] [stdout] 100 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/pretty_print.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 |     try!(m.is_final_state());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:567:21
[INFO] [stdout]     |
[INFO] [stdout] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:749:15
[INFO] [stdout]     |
[INFO] [stdout] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |               ----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:893:18
[INFO] [stdout]     |
[INFO] [stdout] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:906:18
[INFO] [stdout]     |
[INFO] [stdout] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:919:16
[INFO] [stdout]     |
[INFO] [stdout] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                ----^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:938:14
[INFO] [stdout]     |
[INFO] [stdout] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:950:13
[INFO] [stdout]     |
[INFO] [stdout] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   mut processed: &mut HashSet<Addr>,
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 | ...                   mut rec_stack: &mut HashSet<Addr>) -> bool {
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/machine.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<Addr>> {
[INFO] [stdout]     |                 ^^^^^                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<'_, Addr>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/frontend.rs:524:44
[INFO] [stdout]     |
[INFO] [stdout] 524 | ...                   .map(|&s| s.clone())
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 try!(write!(fmt, "{}(tag: {:#?}",
[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/machine.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     try!(write!(fmt, ")"))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     try!(write!(fmt, " | data: "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     try!(write!(fmt, ")"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:188:25
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         try!(write!(fmt, "{} ", format_addr_string(addr)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             try!(write!(fmt, "\t{} => {:#?}\n", format_addr_string(key), val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |         try!(m.setup_supercombinator_execution("main"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |         let main_addr = try!(self.globals
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:582:31
[INFO] [stdout]     |
[INFO] [stdout] 582 |         let tos_addr : Addr = try!(self.stack.peek());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:617:17
[INFO] [stdout]     |
[INFO] [stdout] 617 |                 try!(self.stack.pop());
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:622:17
[INFO] [stdout]     |
[INFO] [stdout] 622 |                 try!(run_supercombinator(self, sc_defn));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |                 try!(run_primitive_negate(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:629:17
[INFO] [stdout]     |
[INFO] [stdout] 629 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:633:17
[INFO] [stdout]     |
[INFO] [stdout] 633 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:637:17
[INFO] [stdout]     |
[INFO] [stdout] 637 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:641:17
[INFO] [stdout]     |
[INFO] [stdout] 641 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:646:17
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 try!(run_constructor(self, tag, arity));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:650:17
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:654:17
[INFO] [stdout]     |
[INFO] [stdout] 654 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:658:17
[INFO] [stdout]     |
[INFO] [stdout] 658 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:670:17
[INFO] [stdout]     |
[INFO] [stdout] 670 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:675:17
[INFO] [stdout]     |
[INFO] [stdout] 675 |                 try!(run_primitive_if(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |                 try!(run_primitive_case_pair(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:681:17
[INFO] [stdout]     |
[INFO] [stdout] 681 |                 try!(run_primitive_case_list(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:697:31
[INFO] [stdout]     |
[INFO] [stdout] 697 |                 let let_env = try!(instantiate_let_bindings(self, env, bindings));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:702:31
[INFO] [stdout]     |
[INFO] [stdout] 702 |                 let fn_addr = try!(self.instantiate(*fn_expr, env));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:703:32
[INFO] [stdout]     |
[INFO] [stdout] 703 |                 let arg_addr = try!(self.instantiate(*arg_expr, env));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:721:30
[INFO] [stdout]     |
[INFO] [stdout] 721 |                         tag: try!(raw_tag_to_data_tag(tag)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:802:29
[INFO] [stdout]     |
[INFO] [stdout] 802 |             let inst_addr = try!(m.instantiate(*bind_expr.clone(), &env));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:803:29
[INFO] [stdout]     |
[INFO] [stdout] 803 |             let fake_addr = try!(env.get(&bind_name)
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:967:5
[INFO] [stdout]     |
[INFO] [stdout] 967 |     try!(m.stack.pop());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:971:23
[INFO] [stdout]     |
[INFO] [stdout] 971 |     let neg_ap_addr = try!(m.stack.peek());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:976:15
[INFO] [stdout]     |
[INFO] [stdout] 976 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1026:9
[INFO] [stdout]      |
[INFO] [stdout] 1026 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1027:9
[INFO] [stdout]      |
[INFO] [stdout] 1027 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1028:9
[INFO] [stdout]      |
[INFO] [stdout] 1028 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:997:26
[INFO] [stdout]     |
[INFO] [stdout] 997 |         let if_ap_addr = try!(m.stack
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |         let then_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1008:28
[INFO] [stdout]      |
[INFO] [stdout] 1008 |         let else_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1014:19
[INFO] [stdout]      |
[INFO] [stdout] 1014 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1031:34
[INFO] [stdout]      |
[INFO] [stdout] 1031 |             let (_, then_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&then_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1036:34
[INFO] [stdout]      |
[INFO] [stdout] 1036 |             let (_, else_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&else_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1094:9
[INFO] [stdout]      |
[INFO] [stdout] 1094 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1095:9
[INFO] [stdout]      |
[INFO] [stdout] 1095 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1052:28
[INFO] [stdout]      |
[INFO] [stdout] 1052 |         let pair_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1058:36
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         let case_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1064:38
[INFO] [stdout]      |
[INFO] [stdout] 1064 |         let (_, case_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&case_handler_ap_addr)));
[INFO] [stdout]      |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1066:19
[INFO] [stdout]      |
[INFO] [stdout] 1066 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1129:29
[INFO] [stdout]      |
[INFO] [stdout] 1129 |         let param_ap_addr = try!(m.stack
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1135:35
[INFO] [stdout]      |
[INFO] [stdout] 1135 |         let nil_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1141:36
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         let cons_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1149:19
[INFO] [stdout]      |
[INFO] [stdout] 1149 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1165:45
[INFO] [stdout]      |
[INFO] [stdout] 1165 |                 let (_, nil_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&nil_handler_ap_addr)));
[INFO] [stdout]      |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1172:46
[INFO] [stdout]      |
[INFO] [stdout] 1172 |                 let (_, cons_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&cons_handler_ap_addr)));
[INFO] [stdout]      |                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1200:5
[INFO] [stdout]      |
[INFO] [stdout] 1200 |     try!(m.stack.pop());
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1205:28
[INFO] [stdout]      |
[INFO] [stdout] 1205 |         let left_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1206:15
[INFO] [stdout]      |
[INFO] [stdout] 1206 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1220:25
[INFO] [stdout]      |
[INFO] [stdout] 1220 |     let binop_ap_addr = try!(m.stack.peek());
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1222:15
[INFO] [stdout]      |
[INFO] [stdout] 1222 |         match try!(setup_heap_node_access(m, 
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1265:28
[INFO] [stdout]      |
[INFO] [stdout] 1265 |     let mut rewrite_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1288:27
[INFO] [stdout]      |
[INFO] [stdout] 1288 |         let arg_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1290:29
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         let (_, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&arg_ap_addr)));
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1309:19
[INFO] [stdout]      |
[INFO] [stdout] 1309 |     let sc_addr = try!(m.stack.pop());
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1317:24
[INFO] [stdout]      |
[INFO] [stdout] 1317 |             addrs.push(try!(m.stack.pop()));
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1322:15
[INFO] [stdout]      |
[INFO] [stdout] 1322 |     let env = try!(make_supercombinator_env(&sc_defn,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1327:26
[INFO] [stdout]      |
[INFO] [stdout] 1327 |     let new_alloc_addr = try!(m.instantiate(sc_defn.body.clone(), &env));
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1383:35
[INFO] [stdout]      |
[INFO] [stdout] 1383 |             let (_, param_addr) = try!(unwrap_heap_node_to_ap(application));
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1420:31
[INFO] [stdout]      |
[INFO] [stdout] 1420 |     let (fn_addr, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&ap_addr))); 
[INFO] [stdout]      |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1445:25
[INFO] [stdout]      |
[INFO] [stdout] 1445 |     let access_result = try!(access_handler(arg));
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1478:24
[INFO] [stdout]      |
[INFO] [stdout] 1478 |             let left = try!(component_addrs.get(0).ok_or(format!(
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1480:25
[INFO] [stdout]      |
[INFO] [stdout] 1480 |             let right = try!(component_addrs.get(1).ok_or(format!(
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1502:26
[INFO] [stdout]      |
[INFO] [stdout] 1502 |             let x_addr = try!(component_addrs.get(0).cloned().ok_or(format!(
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1504:27
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             let xs_addr = try!(component_addrs.get(1).cloned().ok_or(format!(
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]     --> src/machine.rs:1507:16
[INFO] [stdout]      |
[INFO] [stdout] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout]      |                ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1507 -             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout] 1507 +             Ok(ListAccess::Cons(x_addr, xs_addr))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 392 |                     try!(self.consume(&format!("consuming matching token: {}", possible_match)));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:526:27
[INFO] [stdout]     |
[INFO] [stdout] 526 |     let (range, op_str) = try!(cursor.consume_longest_match(keys));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:571:18
[INFO] [stdout]     |
[INFO] [stdout] 571 |     let (_, c) = try!(cursor.consume("consuming alphabet token"));
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |             tokens.push(try!(parse_identifier(&mut cursor)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:620:25
[INFO] [stdout]     |
[INFO] [stdout] 620 |             let symbol= try!(tokenize_symbol(&mut cursor));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:669:11
[INFO] [stdout]     |
[INFO] [stdout] 669 |     match try!(c.consume("parsing atomic expression")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:671:23
[INFO] [stdout]     |
[INFO] [stdout] 671 |             let num = try!(parse_string_as_int(range, num_str));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:680:13
[INFO] [stdout]     |
[INFO] [stdout] 680 |             try!(c.expect(CoreToken::CloseRoundBracket, "looking for ) for matching ("));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:678:30
[INFO] [stdout]     |
[INFO] [stdout] 678 |             let inner_expr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:697:11
[INFO] [stdout]     |
[INFO] [stdout] 697 |     match try!(c.consume("looking for identifier of let binding LHS")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             try!(c.expect(CoreToken::Assignment, "expected = after name in let bindings"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:700:34
[INFO] [stdout]     |
[INFO] [stdout] 700 |             let rhs : CoreExpr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:715:5
[INFO] [stdout]     |
[INFO] [stdout] 715 |     try!(c.expect(CoreToken::Let, "expected let"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:735:5
[INFO] [stdout]     |
[INFO] [stdout] 735 |     try!(c.expect(CoreToken::In, "expected <in> after let bindings"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:721:20
[INFO] [stdout]     |
[INFO] [stdout] 721 |         let defn = try!(parse_defn(&mut c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:727:13
[INFO] [stdout]     |
[INFO] [stdout] 727 |             try!(c.expect(CoreToken::Semicolon, "expected ; since peek() returned ;"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:738:20
[INFO] [stdout]     |
[INFO] [stdout] 738 |     let rhs_expr = try!(parse_expr(c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:752:5
[INFO] [stdout]     |
[INFO] [stdout] 752 |     try!(c.expect(CoreToken::Pack, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:753:5
[INFO] [stdout]     |
[INFO] [stdout] 753 |     try!(c.expect(CoreToken::OpenCurlyBracket, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:764:5
[INFO] [stdout]     |
[INFO] [stdout] 764 |     try!(c.expect(CoreToken::Comma, "expected , after <tag> in Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:776:5
[INFO] [stdout]     |
[INFO] [stdout] 776 |     try!(c.expect(CoreToken::CloseCurlyBracket, "expecting closing curly bracket for Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:755:27
[INFO] [stdout]     |
[INFO] [stdout] 755 |     let tag : u32 = match try!(c.consume(pack_grammar)) {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:757:13
[INFO] [stdout]     |
[INFO] [stdout] 757 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:766:29
[INFO] [stdout]     |
[INFO] [stdout] 766 |     let arity : u32 = match try!(c.consume("expected arity after , in Pack")) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:799:33
[INFO] [stdout]     |
[INFO] [stdout] 799 |                 let pack_expr = try!(parse_pack(&mut cursor));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:805:39
[INFO] [stdout]     |
[INFO] [stdout] 805 |                     let atomic_expr = try!(parse_atomic_expr(&mut cursor));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:858:31
[INFO] [stdout]     |
[INFO] [stdout] 858 |     let lhs_expr : CoreExpr = try!(lhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             try!(cursor.expect(c, &format!("parsing binary operator {:#?}", op_var)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:869:23
[INFO] [stdout]     |
[INFO] [stdout] 869 |             let rhs = try!(rhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:979:25
[INFO] [stdout]     |
[INFO] [stdout] 979 |     let sc_name = match try!(c.consume("parsing supercombinator, looking for name")) {
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:990:15
[INFO] [stdout]     |
[INFO] [stdout] 990 |         match try!(c.consume("looking for <args>* =")) {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1004:19
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     let sc_body = try!(parse_expr(&mut c));
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1016:44
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1024:44
[INFO] [stdout]      |
[INFO] [stdout] 1024 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1034:44
[INFO] [stdout]      |
[INFO] [stdout] 1034 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1048:18
[INFO] [stdout]      |
[INFO] [stdout] 1048 |         let sc = try!(parse_supercombinator(&mut cursor));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1057:17
[INFO] [stdout]      |
[INFO] [stdout] 1057 |                 try!(cursor.expect(CoreToken::Semicolon, "parsing supercombinator"));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 try!(write!(fmt, "let"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 try!(write!(fmt, " {{\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 try!(write!(fmt, "in\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(write!(fmt, "{:#?}", expr));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                     try!(write!(fmt, "{} = {:#?}\n", name, expr));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         try!(write!(fmt, "{} ", &self.name));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(fmt, "= {{ {:#?} }}", self.body));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             try!(write!(fmt, "{} ", &arg));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/pretty_print.rs:100:6
[INFO] [stdout]     |
[INFO] [stdout] 100 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/pretty_print.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 |     try!(m.is_final_state());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:567:21
[INFO] [stdout]     |
[INFO] [stdout] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:749:15
[INFO] [stdout]     |
[INFO] [stdout] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |               ----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:893:18
[INFO] [stdout]     |
[INFO] [stdout] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:906:18
[INFO] [stdout]     |
[INFO] [stdout] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:919:16
[INFO] [stdout]     |
[INFO] [stdout] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                ----^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:938:14
[INFO] [stdout]     |
[INFO] [stdout] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:950:13
[INFO] [stdout]     |
[INFO] [stdout] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   mut processed: &mut HashSet<Addr>,
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 | ...                   mut rec_stack: &mut HashSet<Addr>) -> bool {
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/machine.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<Addr>> {
[INFO] [stdout]     |                 ^^^^^                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<'_, Addr>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/frontend.rs:524:44
[INFO] [stdout]     |
[INFO] [stdout] 524 | ...                   .map(|&s| s.clone())
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 392 |                     try!(self.consume(&format!("consuming matching token: {}", possible_match)));
[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/frontend.rs:526:27
[INFO] [stdout]     |
[INFO] [stdout] 526 |     let (range, op_str) = try!(cursor.consume_longest_match(keys));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:571:18
[INFO] [stdout]     |
[INFO] [stdout] 571 |     let (_, c) = try!(cursor.consume("consuming alphabet token"));
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |             tokens.push(try!(parse_identifier(&mut cursor)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:620:25
[INFO] [stdout]     |
[INFO] [stdout] 620 |             let symbol= try!(tokenize_symbol(&mut cursor));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:669:11
[INFO] [stdout]     |
[INFO] [stdout] 669 |     match try!(c.consume("parsing atomic expression")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:671:23
[INFO] [stdout]     |
[INFO] [stdout] 671 |             let num = try!(parse_string_as_int(range, num_str));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:680:13
[INFO] [stdout]     |
[INFO] [stdout] 680 |             try!(c.expect(CoreToken::CloseRoundBracket, "looking for ) for matching ("));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:678:30
[INFO] [stdout]     |
[INFO] [stdout] 678 |             let inner_expr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:697:11
[INFO] [stdout]     |
[INFO] [stdout] 697 |     match try!(c.consume("looking for identifier of let binding LHS")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             try!(c.expect(CoreToken::Assignment, "expected = after name in let bindings"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:700:34
[INFO] [stdout]     |
[INFO] [stdout] 700 |             let rhs : CoreExpr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:715:5
[INFO] [stdout]     |
[INFO] [stdout] 715 |     try!(c.expect(CoreToken::Let, "expected let"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:735:5
[INFO] [stdout]     |
[INFO] [stdout] 735 |     try!(c.expect(CoreToken::In, "expected <in> after let bindings"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:721:20
[INFO] [stdout]     |
[INFO] [stdout] 721 |         let defn = try!(parse_defn(&mut c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:727:13
[INFO] [stdout]     |
[INFO] [stdout] 727 |             try!(c.expect(CoreToken::Semicolon, "expected ; since peek() returned ;"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:738:20
[INFO] [stdout]     |
[INFO] [stdout] 738 |     let rhs_expr = try!(parse_expr(c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:752:5
[INFO] [stdout]     |
[INFO] [stdout] 752 |     try!(c.expect(CoreToken::Pack, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:753:5
[INFO] [stdout]     |
[INFO] [stdout] 753 |     try!(c.expect(CoreToken::OpenCurlyBracket, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:764:5
[INFO] [stdout]     |
[INFO] [stdout] 764 |     try!(c.expect(CoreToken::Comma, "expected , after <tag> in Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:776:5
[INFO] [stdout]     |
[INFO] [stdout] 776 |     try!(c.expect(CoreToken::CloseCurlyBracket, "expecting closing curly bracket for Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:755:27
[INFO] [stdout]     |
[INFO] [stdout] 755 |     let tag : u32 = match try!(c.consume(pack_grammar)) {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:757:13
[INFO] [stdout]     |
[INFO] [stdout] 757 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:766:29
[INFO] [stdout]     |
[INFO] [stdout] 766 |     let arity : u32 = match try!(c.consume("expected arity after , in Pack")) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:799:33
[INFO] [stdout]     |
[INFO] [stdout] 799 |                 let pack_expr = try!(parse_pack(&mut cursor));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:805:39
[INFO] [stdout]     |
[INFO] [stdout] 805 |                     let atomic_expr = try!(parse_atomic_expr(&mut cursor));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:858:31
[INFO] [stdout]     |
[INFO] [stdout] 858 |     let lhs_expr : CoreExpr = try!(lhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             try!(cursor.expect(c, &format!("parsing binary operator {:#?}", op_var)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:869:23
[INFO] [stdout]     |
[INFO] [stdout] 869 |             let rhs = try!(rhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:979:25
[INFO] [stdout]     |
[INFO] [stdout] 979 |     let sc_name = match try!(c.consume("parsing supercombinator, looking for name")) {
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:990:15
[INFO] [stdout]     |
[INFO] [stdout] 990 |         match try!(c.consume("looking for <args>* =")) {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1004:19
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     let sc_body = try!(parse_expr(&mut c));
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1016:44
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1024:44
[INFO] [stdout]      |
[INFO] [stdout] 1024 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1034:44
[INFO] [stdout]      |
[INFO] [stdout] 1034 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1048:18
[INFO] [stdout]      |
[INFO] [stdout] 1048 |         let sc = try!(parse_supercombinator(&mut cursor));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1057:17
[INFO] [stdout]      |
[INFO] [stdout] 1057 |                 try!(cursor.expect(CoreToken::Semicolon, "parsing supercombinator"));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 try!(write!(fmt, "let"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 try!(write!(fmt, " {{\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 try!(write!(fmt, "in\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(write!(fmt, "{:#?}", expr));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                     try!(write!(fmt, "{} = {:#?}\n", name, expr));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         try!(write!(fmt, "{} ", &self.name));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(fmt, "= {{ {:#?} }}", self.body));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             try!(write!(fmt, "{} ", &arg));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 try!(write!(fmt, "{}(tag: {:#?}",
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:392:21
[INFO] [stdout]     |
[INFO] [stdout] 392 |                     try!(self.consume(&format!("consuming matching token: {}", possible_match)));
[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/machine.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     try!(write!(fmt, ")"))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     try!(write!(fmt, " | data: "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     try!(write!(fmt, ")"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:188:25
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         try!(write!(fmt, "{} ", format_addr_string(addr)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             try!(write!(fmt, "\t{} => {:#?}\n", format_addr_string(key), val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |         try!(m.setup_supercombinator_execution("main"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |         let main_addr = try!(self.globals
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:582:31
[INFO] [stdout]     |
[INFO] [stdout] 582 |         let tos_addr : Addr = try!(self.stack.peek());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:617:17
[INFO] [stdout]     |
[INFO] [stdout] 617 |                 try!(self.stack.pop());
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:622:17
[INFO] [stdout]     |
[INFO] [stdout] 622 |                 try!(run_supercombinator(self, sc_defn));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |                 try!(run_primitive_negate(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:629:17
[INFO] [stdout]     |
[INFO] [stdout] 629 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:633:17
[INFO] [stdout]     |
[INFO] [stdout] 633 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:637:17
[INFO] [stdout]     |
[INFO] [stdout] 637 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:641:17
[INFO] [stdout]     |
[INFO] [stdout] 641 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:646:17
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 try!(run_constructor(self, tag, arity));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:650:17
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:654:17
[INFO] [stdout]     |
[INFO] [stdout] 654 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:526:27
[INFO] [stdout]     |
[INFO] [stdout] 526 |     let (range, op_str) = try!(cursor.consume_longest_match(keys));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:571:18
[INFO] [stdout]     |
[INFO] [stdout] 571 |     let (_, c) = try!(cursor.consume("consuming alphabet token"));
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:609:25
[INFO] [stdout]     |
[INFO] [stdout] 609 |             tokens.push(try!(parse_identifier(&mut cursor)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:620:25
[INFO] [stdout]     |
[INFO] [stdout] 620 |             let symbol= try!(tokenize_symbol(&mut cursor));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:669:11
[INFO] [stdout]     |
[INFO] [stdout] 669 |     match try!(c.consume("parsing atomic expression")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:671:23
[INFO] [stdout]     |
[INFO] [stdout] 671 |             let num = try!(parse_string_as_int(range, num_str));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:680:13
[INFO] [stdout]     |
[INFO] [stdout] 680 |             try!(c.expect(CoreToken::CloseRoundBracket, "looking for ) for matching ("));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:678:30
[INFO] [stdout]     |
[INFO] [stdout] 678 |             let inner_expr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:697:11
[INFO] [stdout]     |
[INFO] [stdout] 697 |     match try!(c.consume("looking for identifier of let binding LHS")) {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             try!(c.expect(CoreToken::Assignment, "expected = after name in let bindings"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:700:34
[INFO] [stdout]     |
[INFO] [stdout] 700 |             let rhs : CoreExpr = try!(parse_expr(&mut c));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:715:5
[INFO] [stdout]     |
[INFO] [stdout] 715 |     try!(c.expect(CoreToken::Let, "expected let"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:735:5
[INFO] [stdout]     |
[INFO] [stdout] 735 |     try!(c.expect(CoreToken::In, "expected <in> after let bindings"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:658:17
[INFO] [stdout]     |
[INFO] [stdout] 658 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:670:17
[INFO] [stdout]     |
[INFO] [stdout] 670 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:675:17
[INFO] [stdout]     |
[INFO] [stdout] 675 |                 try!(run_primitive_if(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |                 try!(run_primitive_case_pair(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:681:17
[INFO] [stdout]     |
[INFO] [stdout] 681 |                 try!(run_primitive_case_list(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:697:31
[INFO] [stdout]     |
[INFO] [stdout] 697 |                 let let_env = try!(instantiate_let_bindings(self, env, bindings));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:702:31
[INFO] [stdout]     |
[INFO] [stdout] 702 |                 let fn_addr = try!(self.instantiate(*fn_expr, env));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:703:32
[INFO] [stdout]     |
[INFO] [stdout] 703 |                 let arg_addr = try!(self.instantiate(*arg_expr, env));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:721:30
[INFO] [stdout]     |
[INFO] [stdout] 721 |                         tag: try!(raw_tag_to_data_tag(tag)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:802:29
[INFO] [stdout]     |
[INFO] [stdout] 802 |             let inst_addr = try!(m.instantiate(*bind_expr.clone(), &env));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:803:29
[INFO] [stdout]     |
[INFO] [stdout] 803 |             let fake_addr = try!(env.get(&bind_name)
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:967:5
[INFO] [stdout]     |
[INFO] [stdout] 967 |     try!(m.stack.pop());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:971:23
[INFO] [stdout]     |
[INFO] [stdout] 971 |     let neg_ap_addr = try!(m.stack.peek());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:976:15
[INFO] [stdout]     |
[INFO] [stdout] 976 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1026:9
[INFO] [stdout]      |
[INFO] [stdout] 1026 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1027:9
[INFO] [stdout]      |
[INFO] [stdout] 1027 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1028:9
[INFO] [stdout]      |
[INFO] [stdout] 1028 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:997:26
[INFO] [stdout]     |
[INFO] [stdout] 997 |         let if_ap_addr = try!(m.stack
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |         let then_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1008:28
[INFO] [stdout]      |
[INFO] [stdout] 1008 |         let else_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1014:19
[INFO] [stdout]      |
[INFO] [stdout] 1014 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1031:34
[INFO] [stdout]      |
[INFO] [stdout] 1031 |             let (_, then_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&then_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1036:34
[INFO] [stdout]      |
[INFO] [stdout] 1036 |             let (_, else_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&else_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1094:9
[INFO] [stdout]      |
[INFO] [stdout] 1094 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1095:9
[INFO] [stdout]      |
[INFO] [stdout] 1095 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1052:28
[INFO] [stdout]      |
[INFO] [stdout] 1052 |         let pair_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1058:36
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         let case_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1064:38
[INFO] [stdout]      |
[INFO] [stdout] 1064 |         let (_, case_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&case_handler_ap_addr)));
[INFO] [stdout]      |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1066:19
[INFO] [stdout]      |
[INFO] [stdout] 1066 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1129:29
[INFO] [stdout]      |
[INFO] [stdout] 1129 |         let param_ap_addr = try!(m.stack
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1135:35
[INFO] [stdout]      |
[INFO] [stdout] 1135 |         let nil_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1141:36
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         let cons_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:721:20
[INFO] [stdout]     |
[INFO] [stdout] 721 |         let defn = try!(parse_defn(&mut c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:727:13
[INFO] [stdout]     |
[INFO] [stdout] 727 |             try!(c.expect(CoreToken::Semicolon, "expected ; since peek() returned ;"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:738:20
[INFO] [stdout]     |
[INFO] [stdout] 738 |     let rhs_expr = try!(parse_expr(c));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:752:5
[INFO] [stdout]     |
[INFO] [stdout] 752 |     try!(c.expect(CoreToken::Pack, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:753:5
[INFO] [stdout]     |
[INFO] [stdout] 753 |     try!(c.expect(CoreToken::OpenCurlyBracket, pack_grammar));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:764:5
[INFO] [stdout]     |
[INFO] [stdout] 764 |     try!(c.expect(CoreToken::Comma, "expected , after <tag> in Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:776:5
[INFO] [stdout]     |
[INFO] [stdout] 776 |     try!(c.expect(CoreToken::CloseCurlyBracket, "expecting closing curly bracket for Pack"));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:755:27
[INFO] [stdout]     |
[INFO] [stdout] 755 |     let tag : u32 = match try!(c.consume(pack_grammar)) {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:757:13
[INFO] [stdout]     |
[INFO] [stdout] 757 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:766:29
[INFO] [stdout]     |
[INFO] [stdout] 766 |     let arity : u32 = match try!(c.consume("expected arity after , in Pack")) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:799:33
[INFO] [stdout]     |
[INFO] [stdout] 799 |                 let pack_expr = try!(parse_pack(&mut cursor));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:805:39
[INFO] [stdout]     |
[INFO] [stdout] 805 |                     let atomic_expr = try!(parse_atomic_expr(&mut cursor));
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:858:31
[INFO] [stdout]     |
[INFO] [stdout] 858 |     let lhs_expr : CoreExpr = try!(lhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             try!(cursor.expect(c, &format!("parsing binary operator {:#?}", op_var)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:869:23
[INFO] [stdout]     |
[INFO] [stdout] 869 |             let rhs = try!(rhs_parse_fn(&mut cursor));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:979:25
[INFO] [stdout]     |
[INFO] [stdout] 979 |     let sc_name = match try!(c.consume("parsing supercombinator, looking for name")) {
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/frontend.rs:990:15
[INFO] [stdout]     |
[INFO] [stdout] 990 |         match try!(c.consume("looking for <args>* =")) {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1004:19
[INFO] [stdout]      |
[INFO] [stdout] 1004 |     let sc_body = try!(parse_expr(&mut c));
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1016:44
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1024:44
[INFO] [stdout]      |
[INFO] [stdout] 1024 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1034:44
[INFO] [stdout]      |
[INFO] [stdout] 1034 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stdout]      |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1048:18
[INFO] [stdout]      |
[INFO] [stdout] 1048 |         let sc = try!(parse_supercombinator(&mut cursor));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/frontend.rs:1057:17
[INFO] [stdout]      |
[INFO] [stdout] 1057 |                 try!(cursor.expect(CoreToken::Semicolon, "parsing supercombinator"));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 try!(write!(fmt, "let"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 try!(write!(fmt, " {{\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 try!(write!(fmt, "in\n"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 try!(write!(fmt, "{:#?}", expr));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                     try!(write!(fmt, "{} = {:#?}\n", name, expr));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         try!(write!(fmt, "{} ", &self.name));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(fmt, "= {{ {:#?} }}", self.body));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ir.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             try!(write!(fmt, "{} ", &arg));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 try!(write!(fmt, "{}(tag: {:#?}",
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |                     try!(write!(fmt, ")"))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     try!(write!(fmt, " | data: "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     try!(write!(fmt, ")"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:188:25
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         try!(write!(fmt, "{} ", format_addr_string(addr)));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             try!(write!(fmt, "\t{} => {:#?}\n", format_addr_string(key), val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1149:19
[INFO] [stdout]      |
[INFO] [stdout] 1149 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1165:45
[INFO] [stdout]      |
[INFO] [stdout] 1165 |                 let (_, nil_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&nil_handler_ap_addr)));
[INFO] [stdout]      |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1172:46
[INFO] [stdout]      |
[INFO] [stdout] 1172 |                 let (_, cons_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&cons_handler_ap_addr)));
[INFO] [stdout]      |                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1200:5
[INFO] [stdout]      |
[INFO] [stdout] 1200 |     try!(m.stack.pop());
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1205:28
[INFO] [stdout]      |
[INFO] [stdout] 1205 |         let left_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1206:15
[INFO] [stdout]      |
[INFO] [stdout] 1206 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1220:25
[INFO] [stdout]      |
[INFO] [stdout] 1220 |     let binop_ap_addr = try!(m.stack.peek());
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1222:15
[INFO] [stdout]      |
[INFO] [stdout] 1222 |         match try!(setup_heap_node_access(m, 
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1265:28
[INFO] [stdout]      |
[INFO] [stdout] 1265 |     let mut rewrite_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1288:27
[INFO] [stdout]      |
[INFO] [stdout] 1288 |         let arg_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1290:29
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         let (_, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&arg_ap_addr)));
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1309:19
[INFO] [stdout]      |
[INFO] [stdout] 1309 |     let sc_addr = try!(m.stack.pop());
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:517:9
[INFO] [stdout]     |
[INFO] [stdout] 517 |         try!(m.setup_supercombinator_execution("main"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |         let main_addr = try!(self.globals
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:582:31
[INFO] [stdout]     |
[INFO] [stdout] 582 |         let tos_addr : Addr = try!(self.stack.peek());
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:617:17
[INFO] [stdout]     |
[INFO] [stdout] 617 |                 try!(self.stack.pop());
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:622:17
[INFO] [stdout]     |
[INFO] [stdout] 622 |                 try!(run_supercombinator(self, sc_defn));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |                 try!(run_primitive_negate(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:629:17
[INFO] [stdout]     |
[INFO] [stdout] 629 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:633:17
[INFO] [stdout]     |
[INFO] [stdout] 633 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:637:17
[INFO] [stdout]     |
[INFO] [stdout] 637 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:641:17
[INFO] [stdout]     |
[INFO] [stdout] 641 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:646:17
[INFO] [stdout]     |
[INFO] [stdout] 646 |                 try!(run_constructor(self, tag, arity));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:650:17
[INFO] [stdout]     |
[INFO] [stdout] 650 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:654:17
[INFO] [stdout]     |
[INFO] [stdout] 654 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:658:17
[INFO] [stdout]     |
[INFO] [stdout] 658 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:670:17
[INFO] [stdout]     |
[INFO] [stdout] 670 |                 try!(run_primitive_num_binop(self,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:675:17
[INFO] [stdout]     |
[INFO] [stdout] 675 |                 try!(run_primitive_if(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |                 try!(run_primitive_case_pair(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:681:17
[INFO] [stdout]     |
[INFO] [stdout] 681 |                 try!(run_primitive_case_list(self));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:697:31
[INFO] [stdout]     |
[INFO] [stdout] 697 |                 let let_env = try!(instantiate_let_bindings(self, env, bindings));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:702:31
[INFO] [stdout]     |
[INFO] [stdout] 702 |                 let fn_addr = try!(self.instantiate(*fn_expr, env));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:703:32
[INFO] [stdout]     |
[INFO] [stdout] 703 |                 let arg_addr = try!(self.instantiate(*arg_expr, env));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:721:30
[INFO] [stdout]     |
[INFO] [stdout] 721 |                         tag: try!(raw_tag_to_data_tag(tag)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:802:29
[INFO] [stdout]     |
[INFO] [stdout] 802 |             let inst_addr = try!(m.instantiate(*bind_expr.clone(), &env));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:803:29
[INFO] [stdout]     |
[INFO] [stdout] 803 |             let fake_addr = try!(env.get(&bind_name)
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1317:24
[INFO] [stdout]      |
[INFO] [stdout] 1317 |             addrs.push(try!(m.stack.pop()));
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:967:5
[INFO] [stdout]     |
[INFO] [stdout] 967 |     try!(m.stack.pop());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1322:15
[INFO] [stdout]      |
[INFO] [stdout] 1322 |     let env = try!(make_supercombinator_env(&sc_defn,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:971:23
[INFO] [stdout]     |
[INFO] [stdout] 971 |     let neg_ap_addr = try!(m.stack.peek());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1327:26
[INFO] [stdout]      |
[INFO] [stdout] 1327 |     let new_alloc_addr = try!(m.instantiate(sc_defn.body.clone(), &env));
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:976:15
[INFO] [stdout]     |
[INFO] [stdout] 976 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1383:35
[INFO] [stdout]      |
[INFO] [stdout] 1383 |             let (_, param_addr) = try!(unwrap_heap_node_to_ap(application));
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1026:9
[INFO] [stdout]      |
[INFO] [stdout] 1026 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1420:31
[INFO] [stdout]      |
[INFO] [stdout] 1420 |     let (fn_addr, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&ap_addr))); 
[INFO] [stdout]      |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1027:9
[INFO] [stdout]      |
[INFO] [stdout] 1027 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1445:25
[INFO] [stdout]      |
[INFO] [stdout] 1445 |     let access_result = try!(access_handler(arg));
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1028:9
[INFO] [stdout]      |
[INFO] [stdout] 1028 |         try!(m.stack.pop()); 
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1478:24
[INFO] [stdout]      |
[INFO] [stdout] 1478 |             let left = try!(component_addrs.get(0).ok_or(format!(
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/machine.rs:997:26
[INFO] [stdout]     |
[INFO] [stdout] 997 |         let if_ap_addr = try!(m.stack
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1480:25
[INFO] [stdout]      |
[INFO] [stdout] 1480 |             let right = try!(component_addrs.get(1).ok_or(format!(
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1003:28
[INFO] [stdout]      |
[INFO] [stdout] 1003 |         let then_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1502:26
[INFO] [stdout]      |
[INFO] [stdout] 1502 |             let x_addr = try!(component_addrs.get(0).cloned().ok_or(format!(
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1008:28
[INFO] [stdout]      |
[INFO] [stdout] 1008 |         let else_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1504:27
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             let xs_addr = try!(component_addrs.get(1).cloned().ok_or(format!(
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1014:19
[INFO] [stdout]      |
[INFO] [stdout] 1014 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1031:34
[INFO] [stdout]      |
[INFO] [stdout] 1031 |             let (_, then_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&then_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1036:34
[INFO] [stdout]      |
[INFO] [stdout] 1036 |             let (_, else_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&else_ap_addr)));
[INFO] [stdout]      |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1094:9
[INFO] [stdout]      |
[INFO] [stdout] 1094 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1095:9
[INFO] [stdout]      |
[INFO] [stdout] 1095 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]     --> src/machine.rs:1507:16
[INFO] [stdout]      |
[INFO] [stdout] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout]      |                ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1507 -             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout] 1507 +             Ok(ListAccess::Cons(x_addr, xs_addr))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1052:28
[INFO] [stdout]      |
[INFO] [stdout] 1052 |         let pair_ap_addr = try!(m.stack
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/pretty_print.rs:100:6
[INFO] [stdout]     |
[INFO] [stdout] 100 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1058:36
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         let case_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/pretty_print.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 |     try!(m.is_final_state());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1064:38
[INFO] [stdout]      |
[INFO] [stdout] 1064 |         let (_, case_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&case_handler_ap_addr)));
[INFO] [stdout]      |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1066:19
[INFO] [stdout]      |
[INFO] [stdout] 1066 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bin.rs:30:38
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let raw_input : String = try!(rl.readline(&prompt));
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bin.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     try!(m.step());
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bin.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             try!(run_step_interaction(rl, iteration, pause_per_step));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         try!(m.stack.pop());
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1129:29
[INFO] [stdout]      |
[INFO] [stdout] 1129 |         let param_ap_addr = try!(m.stack
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1135:35
[INFO] [stdout]      |
[INFO] [stdout] 1135 |         let nil_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1141:36
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         let cons_handler_ap_addr = try!(m.stack
[INFO] [stdout]      |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1149:19
[INFO] [stdout]      |
[INFO] [stdout] 1149 |             match try!(setup_heap_node_access(m,
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1165:45
[INFO] [stdout]      |
[INFO] [stdout] 1165 |                 let (_, nil_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&nil_handler_ap_addr)));
[INFO] [stdout]      |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1172:46
[INFO] [stdout]      |
[INFO] [stdout] 1172 |                 let (_, cons_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&cons_handler_ap_addr)));
[INFO] [stdout]      |                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1200:5
[INFO] [stdout]      |
[INFO] [stdout] 1200 |     try!(m.stack.pop());
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1205:28
[INFO] [stdout]      |
[INFO] [stdout] 1205 |         let left_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1206:15
[INFO] [stdout]      |
[INFO] [stdout] 1206 |         match try!(setup_heap_node_access(m,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1220:25
[INFO] [stdout]      |
[INFO] [stdout] 1220 |     let binop_ap_addr = try!(m.stack.peek());
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1222:15
[INFO] [stdout]      |
[INFO] [stdout] 1222 |         match try!(setup_heap_node_access(m, 
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1265:28
[INFO] [stdout]      |
[INFO] [stdout] 1265 |     let mut rewrite_addr = try!(m.stack.pop());
[INFO] [stdout]      |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1288:27
[INFO] [stdout]      |
[INFO] [stdout] 1288 |         let arg_ap_addr = try!(m.stack.pop());
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1290:29
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         let (_, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&arg_ap_addr)));
[INFO] [stdout]      |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1309:19
[INFO] [stdout]      |
[INFO] [stdout] 1309 |     let sc_addr = try!(m.stack.pop());
[INFO] [stdout]      |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1317:24
[INFO] [stdout]      |
[INFO] [stdout] 1317 |             addrs.push(try!(m.stack.pop()));
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1322:15
[INFO] [stdout]      |
[INFO] [stdout] 1322 |     let env = try!(make_supercombinator_env(&sc_defn,
[INFO] [stdout]      |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1327:26
[INFO] [stdout]      |
[INFO] [stdout] 1327 |     let new_alloc_addr = try!(m.instantiate(sc_defn.body.clone(), &env));
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1383:35
[INFO] [stdout]      |
[INFO] [stdout] 1383 |             let (_, param_addr) = try!(unwrap_heap_node_to_ap(application));
[INFO] [stdout]      |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1420:31
[INFO] [stdout]      |
[INFO] [stdout] 1420 |     let (fn_addr, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&ap_addr))); 
[INFO] [stdout]      |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1445:25
[INFO] [stdout]      |
[INFO] [stdout] 1445 |     let access_result = try!(access_handler(arg));
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1478:24
[INFO] [stdout]      |
[INFO] [stdout] 1478 |             let left = try!(component_addrs.get(0).ok_or(format!(
[INFO] [stdout]      |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1480:25
[INFO] [stdout]      |
[INFO] [stdout] 1480 |             let right = try!(component_addrs.get(1).ok_or(format!(
[INFO] [stdout]      |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1502:26
[INFO] [stdout]      |
[INFO] [stdout] 1502 |             let x_addr = try!(component_addrs.get(0).cloned().ok_or(format!(
[INFO] [stdout]      |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/machine.rs:1504:27
[INFO] [stdout]      |
[INFO] [stdout] 1504 |             let xs_addr = try!(component_addrs.get(1).cloned().ok_or(format!(
[INFO] [stdout]      |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]     --> src/machine.rs:1507:16
[INFO] [stdout]      |
[INFO] [stdout] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout]      |                ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1507 -             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stdout] 1507 +             Ok(ListAccess::Cons(x_addr, xs_addr))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/pretty_print.rs:100:6
[INFO] [stdout]     |
[INFO] [stdout] 100 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/pretty_print.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 |     try!(m.is_final_state());
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bin.rs:30:38
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let raw_input : String = try!(rl.readline(&prompt));
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bin.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     try!(m.step());
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bin.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             try!(run_step_interaction(rl, iteration, pause_per_step));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/bin.rs:144:37
[INFO] [stdout]     |
[INFO] [stdout] 144 |             let sc_defn_str = input.trim_left_matches("define ").to_string();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 144 -             let sc_defn_str = input.trim_left_matches("define ").to_string();
[INFO] [stdout] 144 +             let sc_defn_str = input.trim_start_matches("define ").to_string();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:567:21
[INFO] [stdout]     |
[INFO] [stdout] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:749:15
[INFO] [stdout]     |
[INFO] [stdout] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |               ----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:893:18
[INFO] [stdout]     |
[INFO] [stdout] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:906:18
[INFO] [stdout]     |
[INFO] [stdout] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:919:16
[INFO] [stdout]     |
[INFO] [stdout] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                ----^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:938:14
[INFO] [stdout]     |
[INFO] [stdout] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:950:13
[INFO] [stdout]     |
[INFO] [stdout] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   mut processed: &mut HashSet<Addr>,
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 | ...                   mut rec_stack: &mut HashSet<Addr>) -> bool {
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]   --> src/frontend.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Point {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 16 |     /// Raw seek index. This point is the `index` element of the file as a stream. 0 indexed
[INFO] [stdout] 17 |     pub index: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/frontend.rs:524:44
[INFO] [stdout]     |
[INFO] [stdout] 524 | ...                   .map(|&s| s.clone())
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/machine.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<Addr>> {
[INFO] [stdout]     |                 ^^^^^                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<'_, Addr>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/bin.rs:144:37
[INFO] [stdout]     |
[INFO] [stdout] 144 |             let sc_defn_str = input.trim_left_matches("define ").to_string();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 144 -             let sc_defn_str = input.trim_left_matches("define ").to_string();
[INFO] [stdout] 144 +             let sc_defn_str = input.trim_start_matches("define ").to_string();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:567:21
[INFO] [stdout]     |
[INFO] [stdout] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:749:15
[INFO] [stdout]     |
[INFO] [stdout] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |               ----^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:893:18
[INFO] [stdout]     |
[INFO] [stdout] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:906:18
[INFO] [stdout]     |
[INFO] [stdout] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                  ----^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:919:16
[INFO] [stdout]     |
[INFO] [stdout] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |                ----^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:938:14
[INFO] [stdout]     |
[INFO] [stdout] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend.rs:950:13
[INFO] [stdout]     |
[INFO] [stdout] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   mut processed: &mut HashSet<Addr>,
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pretty_print.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 | ...                   mut rec_stack: &mut HashSet<Addr>) -> bool {
[INFO] [stdout]    |                       ----^^^^^^^^^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]   --> src/frontend.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Point {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 16 |     /// Raw seek index. This point is the `index` element of the file as a stream. 0 indexed
[INFO] [stdout] 17 |     pub index: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/frontend.rs:524:44
[INFO] [stdout]     |
[INFO] [stdout] 524 | ...                   .map(|&s| s.clone())
[INFO] [stdout]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/machine.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<Addr>> {
[INFO] [stdout]     |                 ^^^^^                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<'_, Addr>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.91s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "08a5fcd8ed82c3feaf62068f4315cfefd5723aee900e4100a668d40951bf81bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08a5fcd8ed82c3feaf62068f4315cfefd5723aee900e4100a668d40951bf81bd", kill_on_drop: false }`
[INFO] [stdout] 08a5fcd8ed82c3feaf62068f4315cfefd5723aee900e4100a668d40951bf81bd
