[INFO] fetching crate timi 0.2.1...
[INFO] testing timi-0.2.1 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate timi 0.2.1 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate timi 0.2.1 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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: v0.9.2)
[INFO] [stderr]       Adding rustyline v1.0.0 (available: v17.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded prettytable-rs v0.6.7
[INFO] [stderr]   Downloaded csv v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7846556b0aa1b869131ee92c0b81ed974ed0379584828e4a84aba792226bcaf8
[INFO] running `Command { std: "docker" "start" "-a" "7846556b0aa1b869131ee92c0b81ed974ed0379584828e4a84aba792226bcaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7846556b0aa1b869131ee92c0b81ed974ed0379584828e4a84aba792226bcaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7846556b0aa1b869131ee92c0b81ed974ed0379584828e4a84aba792226bcaf8", kill_on_drop: false }`
[INFO] [stdout] 7846556b0aa1b869131ee92c0b81ed974ed0379584828e4a84aba792226bcaf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 162057e721b3a58a1438fe72415633a0414bc201f923fbd3b191e6a19c019634
[INFO] running `Command { std: "docker" "start" "-a" "162057e721b3a58a1438fe72415633a0414bc201f923fbd3b191e6a19c019634", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling 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/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/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: 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.91s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "162057e721b3a58a1438fe72415633a0414bc201f923fbd3b191e6a19c019634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "162057e721b3a58a1438fe72415633a0414bc201f923fbd3b191e6a19c019634", kill_on_drop: false }`
[INFO] [stdout] 162057e721b3a58a1438fe72415633a0414bc201f923fbd3b191e6a19c019634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 998d0b16feef74fe1dfff633c6f244f1d3f0b3848a250b643b04986b024e509c
[INFO] running `Command { std: "docker" "start" "-a" "998d0b16feef74fe1dfff633c6f244f1d3f0b3848a250b643b04986b024e509c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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] [stderr]    Compiling timi v0.2.1 (/opt/rustwide/workdir)
[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/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: 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 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/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: 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 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: 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: 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "998d0b16feef74fe1dfff633c6f244f1d3f0b3848a250b643b04986b024e509c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998d0b16feef74fe1dfff633c6f244f1d3f0b3848a250b643b04986b024e509c", kill_on_drop: false }`
[INFO] [stdout] 998d0b16feef74fe1dfff633c6f244f1d3f0b3848a250b643b04986b024e509c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f8cc1c58fee81ee3e92d148378a315c44ee14a0307c76f49468dbe2a832423eb
[INFO] running `Command { std: "docker" "start" "-a" "f8cc1c58fee81ee3e92d148378a315c44ee14a0307c76f49468dbe2a832423eb", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 178 |                 try!(write!(fmt, "{}(tag: {:#?}",
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:183:21
[INFO] [stderr]     |
[INFO] [stderr] 183 |                     try!(write!(fmt, ")"))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:186:21
[INFO] [stderr]     |
[INFO] [stderr] 186 |                     try!(write!(fmt, " | data: "));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:190:21
[INFO] [stderr]     |
[INFO] [stderr] 190 |                     try!(write!(fmt, ")"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:188:25
[INFO] [stderr]     |
[INFO] [stderr] 188 |                         try!(write!(fmt, "{} ", format_addr_string(addr)));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:306:13
[INFO] [stderr]     |
[INFO] [stderr] 306 |             try!(write!(fmt, "\t{} => {:#?}\n", format_addr_string(key), val));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:517:9
[INFO] [stderr]     |
[INFO] [stderr] 517 |         try!(m.setup_supercombinator_execution("main"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:544:25
[INFO] [stderr]     |
[INFO] [stderr] 544 |         let main_addr = try!(self.globals
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:582:31
[INFO] [stderr]     |
[INFO] [stderr] 582 |         let tos_addr : Addr = try!(self.stack.peek());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:617:17
[INFO] [stderr]     |
[INFO] [stderr] 617 |                 try!(self.stack.pop());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:622:17
[INFO] [stderr]     |
[INFO] [stderr] 622 |                 try!(run_supercombinator(self, sc_defn));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:626:17
[INFO] [stderr]     |
[INFO] [stderr] 626 |                 try!(run_primitive_negate(self));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:629:17
[INFO] [stderr]     |
[INFO] [stderr] 629 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:633:17
[INFO] [stderr]     |
[INFO] [stderr] 633 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:637:17
[INFO] [stderr]     |
[INFO] [stderr] 637 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:641:17
[INFO] [stderr]     |
[INFO] [stderr] 641 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:646:17
[INFO] [stderr]     |
[INFO] [stderr] 646 |                 try!(run_constructor(self, tag, arity));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:650:17
[INFO] [stderr]     |
[INFO] [stderr] 650 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:654:17
[INFO] [stderr]     |
[INFO] [stderr] 654 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:658:17
[INFO] [stderr]     |
[INFO] [stderr] 658 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:662:17
[INFO] [stderr]     |
[INFO] [stderr] 662 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:666:17
[INFO] [stderr]     |
[INFO] [stderr] 666 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:670:17
[INFO] [stderr]     |
[INFO] [stderr] 670 |                 try!(run_primitive_num_binop(self,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:675:17
[INFO] [stderr]     |
[INFO] [stderr] 675 |                 try!(run_primitive_if(self));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:678:17
[INFO] [stderr]     |
[INFO] [stderr] 678 |                 try!(run_primitive_case_pair(self));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:681:17
[INFO] [stderr]     |
[INFO] [stderr] 681 |                 try!(run_primitive_case_list(self));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:697:31
[INFO] [stderr]     |
[INFO] [stderr] 697 |                 let let_env = try!(instantiate_let_bindings(self, env, bindings));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:702:31
[INFO] [stderr]     |
[INFO] [stderr] 702 |                 let fn_addr = try!(self.instantiate(*fn_expr, env));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:703:32
[INFO] [stderr]     |
[INFO] [stderr] 703 |                 let arg_addr = try!(self.instantiate(*arg_expr, env));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:721:30
[INFO] [stderr]     |
[INFO] [stderr] 721 |                         tag: try!(raw_tag_to_data_tag(tag)),
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:802:29
[INFO] [stderr]     |
[INFO] [stderr] 802 |             let inst_addr = try!(m.instantiate(*bind_expr.clone(), &env));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:803:29
[INFO] [stderr]     |
[INFO] [stderr] 803 |             let fake_addr = try!(env.get(&bind_name)
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:967:5
[INFO] [stderr]     |
[INFO] [stderr] 967 |     try!(m.stack.pop());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:971:23
[INFO] [stderr]     |
[INFO] [stderr] 971 |     let neg_ap_addr = try!(m.stack.peek());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:976:15
[INFO] [stderr]     |
[INFO] [stderr] 976 |         match try!(setup_heap_node_access(m,
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1026:9
[INFO] [stderr]      |
[INFO] [stderr] 1026 |         try!(m.stack.pop()); 
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1027:9
[INFO] [stderr]      |
[INFO] [stderr] 1027 |         try!(m.stack.pop()); 
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1028:9
[INFO] [stderr]      |
[INFO] [stderr] 1028 |         try!(m.stack.pop()); 
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:997:26
[INFO] [stderr]     |
[INFO] [stderr] 997 |         let if_ap_addr = try!(m.stack
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1003:28
[INFO] [stderr]      |
[INFO] [stderr] 1003 |         let then_ap_addr = try!(m.stack
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1008:28
[INFO] [stderr]      |
[INFO] [stderr] 1008 |         let else_ap_addr = try!(m.stack
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1014:19
[INFO] [stderr]      |
[INFO] [stderr] 1014 |             match try!(setup_heap_node_access(m,
[INFO] [stderr]      |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1031:34
[INFO] [stderr]      |
[INFO] [stderr] 1031 |             let (_, then_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&then_ap_addr)));
[INFO] [stderr]      |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1036:34
[INFO] [stderr]      |
[INFO] [stderr] 1036 |             let (_, else_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&else_ap_addr)));
[INFO] [stderr]      |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1094:9
[INFO] [stderr]      |
[INFO] [stderr] 1094 |         try!(m.stack.pop());
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1095:9
[INFO] [stderr]      |
[INFO] [stderr] 1095 |         try!(m.stack.pop());
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1052:28
[INFO] [stderr]      |
[INFO] [stderr] 1052 |         let pair_ap_addr = try!(m.stack
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1058:36
[INFO] [stderr]      |
[INFO] [stderr] 1058 |         let case_handler_ap_addr = try!(m.stack
[INFO] [stderr]      |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1064:38
[INFO] [stderr]      |
[INFO] [stderr] 1064 |         let (_, case_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&case_handler_ap_addr)));
[INFO] [stderr]      |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1066:19
[INFO] [stderr]      |
[INFO] [stderr] 1066 |             match try!(setup_heap_node_access(m,
[INFO] [stderr]      |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1159:9
[INFO] [stderr]      |
[INFO] [stderr] 1159 |         try!(m.stack.pop());
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1160:9
[INFO] [stderr]      |
[INFO] [stderr] 1160 |         try!(m.stack.pop());
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1161:9
[INFO] [stderr]      |
[INFO] [stderr] 1161 |         try!(m.stack.pop());
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1129:29
[INFO] [stderr]      |
[INFO] [stderr] 1129 |         let param_ap_addr = try!(m.stack
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1135:35
[INFO] [stderr]      |
[INFO] [stderr] 1135 |         let nil_handler_ap_addr = try!(m.stack
[INFO] [stderr]      |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1141:36
[INFO] [stderr]      |
[INFO] [stderr] 1141 |         let cons_handler_ap_addr = try!(m.stack
[INFO] [stderr]      |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1149:19
[INFO] [stderr]      |
[INFO] [stderr] 1149 |             match try!(setup_heap_node_access(m,
[INFO] [stderr]      |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1165:45
[INFO] [stderr]      |
[INFO] [stderr] 1165 |                 let (_, nil_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&nil_handler_ap_addr)));
[INFO] [stderr]      |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1172:46
[INFO] [stderr]      |
[INFO] [stderr] 1172 |                 let (_, cons_handler_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&cons_handler_ap_addr)));
[INFO] [stderr]      |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1200:5
[INFO] [stderr]      |
[INFO] [stderr] 1200 |     try!(m.stack.pop());
[INFO] [stderr]      |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1205:28
[INFO] [stderr]      |
[INFO] [stderr] 1205 |         let left_ap_addr = try!(m.stack.pop());
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1206:15
[INFO] [stderr]      |
[INFO] [stderr] 1206 |         match try!(setup_heap_node_access(m,
[INFO] [stderr]      |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1220:25
[INFO] [stderr]      |
[INFO] [stderr] 1220 |     let binop_ap_addr = try!(m.stack.peek());
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1222:15
[INFO] [stderr]      |
[INFO] [stderr] 1222 |         match try!(setup_heap_node_access(m, 
[INFO] [stderr]      |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1265:28
[INFO] [stderr]      |
[INFO] [stderr] 1265 |     let mut rewrite_addr = try!(m.stack.pop());
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1288:27
[INFO] [stderr]      |
[INFO] [stderr] 1288 |         let arg_ap_addr = try!(m.stack.pop());
[INFO] [stderr]      |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1290:29
[INFO] [stderr]      |
[INFO] [stderr] 1290 |         let (_, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&arg_ap_addr)));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1309:19
[INFO] [stderr]      |
[INFO] [stderr] 1309 |     let sc_addr = try!(m.stack.pop());
[INFO] [stderr]      |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1317:24
[INFO] [stderr]      |
[INFO] [stderr] 1317 |             addrs.push(try!(m.stack.pop()));
[INFO] [stderr]      |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1322:15
[INFO] [stderr]      |
[INFO] [stderr] 1322 |     let env = try!(make_supercombinator_env(&sc_defn,
[INFO] [stderr]      |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1327:26
[INFO] [stderr]      |
[INFO] [stderr] 1327 |     let new_alloc_addr = try!(m.instantiate(sc_defn.body.clone(), &env));
[INFO] [stderr]      |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1383:35
[INFO] [stderr]      |
[INFO] [stderr] 1383 |             let (_, param_addr) = try!(unwrap_heap_node_to_ap(application));
[INFO] [stderr]      |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1420:31
[INFO] [stderr]      |
[INFO] [stderr] 1420 |     let (fn_addr, arg_addr) = try!(unwrap_heap_node_to_ap(m.heap.get(&ap_addr))); 
[INFO] [stderr]      |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1445:25
[INFO] [stderr]      |
[INFO] [stderr] 1445 |     let access_result = try!(access_handler(arg));
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1478:24
[INFO] [stderr]      |
[INFO] [stderr] 1478 |             let left = try!(component_addrs.get(0).ok_or(format!(
[INFO] [stderr]      |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1480:25
[INFO] [stderr]      |
[INFO] [stderr] 1480 |             let right = try!(component_addrs.get(1).ok_or(format!(
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1502:26
[INFO] [stderr]      |
[INFO] [stderr] 1502 |             let x_addr = try!(component_addrs.get(0).cloned().ok_or(format!(
[INFO] [stderr]      |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/machine.rs:1504:27
[INFO] [stderr]      |
[INFO] [stderr] 1504 |             let xs_addr = try!(component_addrs.get(1).cloned().ok_or(format!(
[INFO] [stderr]      |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]     --> src/machine.rs:1507:16
[INFO] [stderr]      |
[INFO] [stderr] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stderr]      |                ^                                 ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 1507 -             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stderr] 1507 +             Ok(ListAccess::Cons(x_addr, xs_addr))
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:392:21
[INFO] [stderr]     |
[INFO] [stderr] 392 |                     try!(self.consume(&format!("consuming matching token: {}", possible_match)));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:526:27
[INFO] [stderr]     |
[INFO] [stderr] 526 |     let (range, op_str) = try!(cursor.consume_longest_match(keys));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:571:18
[INFO] [stderr]     |
[INFO] [stderr] 571 |     let (_, c) = try!(cursor.consume("consuming alphabet token"));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:609:25
[INFO] [stderr]     |
[INFO] [stderr] 609 |             tokens.push(try!(parse_identifier(&mut cursor)));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:620:25
[INFO] [stderr]     |
[INFO] [stderr] 620 |             let symbol= try!(tokenize_symbol(&mut cursor));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:669:11
[INFO] [stderr]     |
[INFO] [stderr] 669 |     match try!(c.consume("parsing atomic expression")) {
[INFO] [stderr]     |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:671:23
[INFO] [stderr]     |
[INFO] [stderr] 671 |             let num = try!(parse_string_as_int(range, num_str));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:680:13
[INFO] [stderr]     |
[INFO] [stderr] 680 |             try!(c.expect(CoreToken::CloseRoundBracket, "looking for ) for matching ("));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:678:30
[INFO] [stderr]     |
[INFO] [stderr] 678 |             let inner_expr = try!(parse_expr(&mut c));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:697:11
[INFO] [stderr]     |
[INFO] [stderr] 697 |     match try!(c.consume("looking for identifier of let binding LHS")) {
[INFO] [stderr]     |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:699:13
[INFO] [stderr]     |
[INFO] [stderr] 699 |             try!(c.expect(CoreToken::Assignment, "expected = after name in let bindings"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:700:34
[INFO] [stderr]     |
[INFO] [stderr] 700 |             let rhs : CoreExpr = try!(parse_expr(&mut c));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:715:5
[INFO] [stderr]     |
[INFO] [stderr] 715 |     try!(c.expect(CoreToken::Let, "expected let"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:735:5
[INFO] [stderr]     |
[INFO] [stderr] 735 |     try!(c.expect(CoreToken::In, "expected <in> after let bindings"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:721:20
[INFO] [stderr]     |
[INFO] [stderr] 721 |         let defn = try!(parse_defn(&mut c));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:727:13
[INFO] [stderr]     |
[INFO] [stderr] 727 |             try!(c.expect(CoreToken::Semicolon, "expected ; since peek() returned ;"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:738:20
[INFO] [stderr]     |
[INFO] [stderr] 738 |     let rhs_expr = try!(parse_expr(c));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:752:5
[INFO] [stderr]     |
[INFO] [stderr] 752 |     try!(c.expect(CoreToken::Pack, pack_grammar));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:753:5
[INFO] [stderr]     |
[INFO] [stderr] 753 |     try!(c.expect(CoreToken::OpenCurlyBracket, pack_grammar));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:764:5
[INFO] [stderr]     |
[INFO] [stderr] 764 |     try!(c.expect(CoreToken::Comma, "expected , after <tag> in Pack"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:776:5
[INFO] [stderr]     |
[INFO] [stderr] 776 |     try!(c.expect(CoreToken::CloseCurlyBracket, "expecting closing curly bracket for Pack"));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:755:27
[INFO] [stderr]     |
[INFO] [stderr] 755 |     let tag : u32 = match try!(c.consume(pack_grammar)) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:757:13
[INFO] [stderr]     |
[INFO] [stderr] 757 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:766:29
[INFO] [stderr]     |
[INFO] [stderr] 766 |     let arity : u32 = match try!(c.consume("expected arity after , in Pack")) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:768:13
[INFO] [stderr]     |
[INFO] [stderr] 768 |             try!(parse_string_as_int(range, s)) as u32
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:799:33
[INFO] [stderr]     |
[INFO] [stderr] 799 |                 let pack_expr = try!(parse_pack(&mut cursor));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:805:39
[INFO] [stderr]     |
[INFO] [stderr] 805 |                     let atomic_expr = try!(parse_atomic_expr(&mut cursor));
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:858:31
[INFO] [stderr]     |
[INFO] [stderr] 858 |     let lhs_expr : CoreExpr = try!(lhs_parse_fn(&mut cursor));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:868:13
[INFO] [stderr]     |
[INFO] [stderr] 868 |             try!(cursor.expect(c, &format!("parsing binary operator {:#?}", op_var)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:869:23
[INFO] [stderr]     |
[INFO] [stderr] 869 |             let rhs = try!(rhs_parse_fn(&mut cursor));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:979:25
[INFO] [stderr]     |
[INFO] [stderr] 979 |     let sc_name = match try!(c.consume("parsing supercombinator, looking for name")) {
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:990:15
[INFO] [stderr]     |
[INFO] [stderr] 990 |         match try!(c.consume("looking for <args>* =")) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/frontend.rs:1004:19
[INFO] [stderr]      |
[INFO] [stderr] 1004 |     let sc_body = try!(parse_expr(&mut c));
[INFO] [stderr]      |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/frontend.rs:1016:44
[INFO] [stderr]      |
[INFO] [stderr] 1016 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stderr]      |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/frontend.rs:1024:44
[INFO] [stderr]      |
[INFO] [stderr] 1024 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stderr]      |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/frontend.rs:1034:44
[INFO] [stderr]      |
[INFO] [stderr] 1034 |     let tokens : Vec<(Range, CoreToken)> = try!(tokenize(string));
[INFO] [stderr]      |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/frontend.rs:1048:18
[INFO] [stderr]      |
[INFO] [stderr] 1048 |         let sc = try!(parse_supercombinator(&mut cursor));
[INFO] [stderr]      |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/frontend.rs:1057:17
[INFO] [stderr]      |
[INFO] [stderr] 1057 |                 try!(cursor.expect(CoreToken::Semicolon, "parsing supercombinator"));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 try!(write!(fmt, "let"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |                 try!(write!(fmt, " {{\n"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 try!(write!(fmt, "in\n"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 try!(write!(fmt, "{:#?}", expr));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 |                     try!(write!(fmt, "{} = {:#?}\n", name, expr));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         try!(write!(fmt, "{} ", &self.name));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         try!(write!(fmt, "= {{ {:#?} }}", self.body));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ir.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |             try!(write!(fmt, "{} ", &arg));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/pretty_print.rs:100:6
[INFO] [stderr]     |
[INFO] [stderr] 100 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/pretty_print.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     try!(m.is_final_state());
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:567:21
[INFO] [stderr]     |
[INFO] [stderr] 567 | fn parse_identifier(mut cursor: &mut TokenizerCursor) -> Result<(Range, CoreToken), ParseError> {
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:749:15
[INFO] [stderr]     |
[INFO] [stderr] 749 | fn parse_pack(mut c: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stderr]     |               ----^
[INFO] [stderr]     |               |
[INFO] [stderr]     |               help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:893:18
[INFO] [stderr]     |
[INFO] [stderr] 893 | fn parse_mul_div(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stderr]     |                  ----^^^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:906:18
[INFO] [stderr]     |
[INFO] [stderr] 906 | fn parse_add_sub(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stderr]     |                  ----^^^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:919:16
[INFO] [stderr]     |
[INFO] [stderr] 919 | fn parse_relop(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stderr]     |                ----^^^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:938:14
[INFO] [stderr]     |
[INFO] [stderr] 938 | fn parse_and(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stderr]     |              ----^^^^^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend.rs:950:13
[INFO] [stderr]     |
[INFO] [stderr] 950 | fn parse_or(mut cursor: &mut ParserCursor) -> Result<CoreExpr, ParseError> {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/pretty_print.rs:82:32
[INFO] [stderr]    |
[INFO] [stderr] 82 | ...                   mut processed: &mut HashSet<Addr>,
[INFO] [stderr]    |                       ----^^^^^^^^^
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/pretty_print.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 | ...                   mut rec_stack: &mut HashSet<Addr>) -> bool {
[INFO] [stderr]    |                       ----^^^^^^^^^
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/machine.rs:283:17
[INFO] [stderr]     |
[INFO] [stderr] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<Addr>> {
[INFO] [stderr]     |                 ^^^^^                    ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 283 |     pub fn iter(&self) -> std::iter::Rev<std::slice::Iter<'_, Addr>> {
[INFO] [stderr]     |                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/frontend.rs:524:44
[INFO] [stderr]     |
[INFO] [stderr] 524 | ...                   .map(|&s| s.clone())
[INFO] [stderr]     |                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `timi` (lib) generated 138 warnings (run `cargo fix --lib -p timi` to apply 12 suggestions)
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/frontend.rs:392:21
[INFO] [stderr]     |
[INFO] [stderr] 392 |                     try!(self.consume(&format!("consuming matching token: {}", possible_match)));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/machine.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 178 |                 try!(write!(fmt, "{}(tag: {:#?}",
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/bin.rs:30:38
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let raw_input : String = try!(rl.readline(&prompt));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/bin.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     try!(m.step());
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/bin.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(run_step_interaction(rl, iteration, pause_per_step));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stderr]    --> src/bin.rs:144:37
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let sc_defn_str = input.trim_left_matches("define ").to_string();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: replace the use of the deprecated method
[INFO] [stderr]     |
[INFO] [stderr] 144 -             let sc_defn_str = input.trim_left_matches("define ").to_string();
[INFO] [stderr] 144 +             let sc_defn_str = input.trim_start_matches("define ").to_string();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `index` is never read
[INFO] [stderr]   --> src/frontend.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Point {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 16 |     /// Raw seek index. This point is the `index` element of the file as a stream. 0 indexed
[INFO] [stderr] 17 |     pub index: usize,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Point` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `timi` (bin "timi") generated 143 warnings (136 duplicates) (run `cargo fix --bin "timi" -p timi` to apply 1 suggestion)
[INFO] [stderr] warning: `timi` (bin "timi" test) generated 143 warnings (143 duplicates)
[INFO] [stderr] warning: `timi` (lib test) generated 138 warnings (138 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[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 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/timi-0b4dbe4c8f38ecb9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin.rs (/opt/rustwide/target/debug/deps/timi-2090f808c4afc9d5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_machine.rs (/opt/rustwide/target/debug/deps/test_machine-c6ef47e32f692a83)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test test::test_add_lhs_ap ... ok
[INFO] [stdout] test test::test_comments_folow_whitespace ... ok
[INFO] [stdout] test test::test_add_lhs_rhs_ap ... ok
[INFO] [stdout] test test::test_comments_simple ... ok
[INFO] [stdout] test test::test_add_simple ... ok
[INFO] [stdout] test test::test_complex_arith ... ok
[INFO] [stdout] test test::test_add_rhs_ap ... ok
[INFO] [stdout] test test::test_case_pair_simple_left_access ... ok
[INFO] [stdout] test test::test_let_forward_dependency ... ok
[INFO] [stdout] test test::test_let_mutual_rec2 ... ok
[INFO] [stdout] test test::test_let_simple ... ok
[INFO] [stdout] test test::test_if_true_branch ... ok
[INFO] [stdout] test test::test_let_back_dependency ... ok
[INFO] [stdout] test test::test_if_cond_complex_result ... ok
[INFO] [stdout] test test::test_let_mutual_rec ... ok
[INFO] [stdout] test test::test_list_cons_complex ... ok
[INFO] [stdout] test test::test_list_cons_simple ... ok
[INFO] [stdout] test test::test_negate_inner_ap ... ok
[INFO] [stdout] test test::test_list_nil_simple ... ok
[INFO] [stdout] test test::test_case_pair_simple_right_access ... ok
[INFO] [stdout] test test::test_if_false_branch ... ok
[INFO] [stderr]    Doc-tests timi
[INFO] [stdout] test test::test_case_pair_complex_access_function ... ok
[INFO] [stdout] test test::test_foldr ... ok
[INFO] [stdout] test test::test_negate_simple ... ok
[INFO] [stdout] test test::test_skk3 ... ok
[INFO] [stdout] test test::test_if_cond_complex_branch ... ok
[INFO] [stdout] test test::test_nil_complex ... ok
[INFO] [stdout] test test::test_let_uninstantiatable - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]     --> src/machine.rs:1507:16
[INFO] [stderr]      |
[INFO] [stderr] 1507 |             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stderr]      |                ^                                 ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 1507 -             Ok((ListAccess::Cons(x_addr, xs_addr)))
[INFO] [stderr] 1507 +             Ok(ListAccess::Cons(x_addr, xs_addr))
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/pretty_print.rs:100:6
[INFO] [stderr]     |
[INFO] [stderr] 100 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/frontend.rs - frontend::parse_identifier (line 563) ... FAILED
[INFO] [stdout] test src/machine.rs - machine::instantiate_let_bindings (line 780) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/frontend.rs - frontend::parse_identifier (line 563) stdout ----
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/frontend.rs:566:36
[INFO] [stdout]     |
[INFO] [stdout] 566 | any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout]     |                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 566 - any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout] 566 + any number of characters, numbers, '_`, `-` and `?`
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/frontend.rs:566:38
[INFO] [stdout]     |
[INFO] [stdout] 566 | any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout]     |                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 566 - any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout] 566 + any number of characters, numbers, `_', `-` and `?`
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/frontend.rs:566:41
[INFO] [stdout]     |
[INFO] [stdout] 566 | any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout]     |                                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 566 - any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout] 566 + any number of characters, numbers, `_`, '-` and `?`
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/frontend.rs:566:43
[INFO] [stdout]     |
[INFO] [stdout] 566 | any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout]     |                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 566 - any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout] 566 + any number of characters, numbers, `_`, `-' and `?`
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/frontend.rs:566:49
[INFO] [stdout]     |
[INFO] [stdout] 566 | any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout]     |                                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 566 - any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout] 566 + any number of characters, numbers, `_`, `-` and '?`
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]    --> src/frontend.rs:566:51
[INFO] [stdout]     |
[INFO] [stdout] 566 | any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout]     |                                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]     |
[INFO] [stdout] 566 - any number of characters, numbers, `_`, `-` and `?`
[INFO] [stdout] 566 + any number of characters, numbers, `_`, `-` and `?'
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found `identifier`
[INFO] [stdout]    --> src/frontend.rs:565:4
[INFO] [stdout]     |
[INFO] [stdout] 565 | An identifier must start with a character, and can then contain
[INFO] [stdout]     |    ^^^^^^^^^^ expected one of `!` or `::`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a keyword `fn` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 565 - An identifier must start with a character, and can then contain
[INFO] [stdout] 565 + fn identifier must start with a character, and can then contain
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/machine.rs - machine::instantiate_let_bindings (line 780) stdout ----
[INFO] [stdout] error: expected item, found keyword `let`
[INFO] [stdout]    --> src/machine.rs:781:1
[INFO] [stdout]     |
[INFO] [stdout] 781 | let y = x; x = 10 in y + y
[INFO] [stdout]     | ^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | `let` cannot be used for global variables
[INFO] [stdout]     | help: consider using `static` or `const` instead of `let`
[INFO] [stdout]     |
[INFO] [stdout]     = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/frontend.rs - frontend::parse_identifier (line 563)
[INFO] [stdout]     src/machine.rs - machine::instantiate_let_bindings (line 780)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f8cc1c58fee81ee3e92d148378a315c44ee14a0307c76f49468dbe2a832423eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8cc1c58fee81ee3e92d148378a315c44ee14a0307c76f49468dbe2a832423eb", kill_on_drop: false }`
[INFO] [stdout] f8cc1c58fee81ee3e92d148378a315c44ee14a0307c76f49468dbe2a832423eb
