[INFO] cloning repository https://github.com/dusxmt/trs80m1-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dusxmt/trs80m1-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusxmt%2Ftrs80m1-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusxmt%2Ftrs80m1-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68ed1562df0e35982eaa80ee4a86061b6d286a32
[INFO] checking dusxmt/trs80m1-rs against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusxmt%2Ftrs80m1-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dusxmt/trs80m1-rs on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dusxmt/trs80m1-rs
[INFO] finished tweaking git repo https://github.com/dusxmt/trs80m1-rs
[INFO] tweaked toml for git repo https://github.com/dusxmt/trs80m1-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dusxmt/trs80m1-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07e34f83218a12b4ff4a0568e823832da72354c2ec157105d90b39776cc66b7f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07e34f83218a12b4ff4a0568e823832da72354c2ec157105d90b39776cc66b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07e34f83218a12b4ff4a0568e823832da72354c2ec157105d90b39776cc66b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e34f83218a12b4ff4a0568e823832da72354c2ec157105d90b39776cc66b7f", kill_on_drop: false }`
[INFO] [stdout] 07e34f83218a12b4ff4a0568e823832da72354c2ec157105d90b39776cc66b7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bdb3669f889a3fa349c1d303757bd65ffa6a4849c2629a7a68eef91d316cb9b8
[INFO] running `Command { std: "docker" "start" "-a" "bdb3669f889a3fa349c1d303757bd65ffa6a4849c2629a7a68eef91d316cb9b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling cc v1.0.19
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling ncurses v5.94.0
[INFO] [stderr]     Checking pancurses v0.16.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking trs80m1-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/keyboard.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 | /             (0 | if (specifier & 0x01) != 0 { self.key_matrix[0] } else { 0 }
[INFO] [stdout] 42 | |                | if (specifier & 0x02) != 0 { self.key_matrix[1] } else { 0 }
[INFO] [stdout] 43 | |                | if (specifier & 0x04) != 0 { self.key_matrix[2] } else { 0 }
[INFO] [stdout] 44 | |                | if (specifier & 0x08) != 0 { self.key_matrix[3] } else { 0 }
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |                | if (specifier & 0x40) != 0 { self.key_matrix[6] } else { 0 }
[INFO] [stdout] 48 | |                | if (specifier & 0x80) != 0 { self.key_matrix[7] } else { 0 })
[INFO] [stdout]    | |______________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 41 |             0 | if (specifier & 0x01) != 0 { self.key_matrix[0] } else { 0 }
[INFO] [stdout] 42 |                | if (specifier & 0x02) != 0 { self.key_matrix[1] } else { 0 }
[INFO] [stdout] 43 |                | if (specifier & 0x04) != 0 { self.key_matrix[2] } else { 0 }
[INFO] [stdout] 44 |                | if (specifier & 0x08) != 0 { self.key_matrix[3] } else { 0 }
[INFO] [stdout] 45 |                | if (specifier & 0x10) != 0 { self.key_matrix[4] } else { 0 }
[INFO] [stdout] 46 |                | if (specifier & 0x20) != 0 { self.key_matrix[5] } else { 0 }
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:205:17
[INFO] [stdout]     |
[INFO] [stdout] 205 |                 try!(info_source.error_prefix(f));
[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/proj_config.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:217:17
[INFO] [stdout]     |
[INFO] [stdout] 217 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:233:17
[INFO] [stdout]     |
[INFO] [stdout] 233 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:253:17
[INFO] [stdout]     |
[INFO] [stdout] 253 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:261:17
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:555:19
[INFO] [stdout]     |
[INFO] [stdout] 555 |             match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:576:39
[INFO] [stdout]     |
[INFO] [stdout] 576 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:588:25
[INFO] [stdout]     |
[INFO] [stdout] 588 | ...   try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].entries[entry_iter].entr...
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:591:17
[INFO] [stdout]     |
[INFO] [stdout] 591 | ...   try!((self.config_sections[section_iter].entries[entry_iter].parse_entry)(ConfigInfoSource::from_config_file(entry_loc, &self.conf_...
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:678:19
[INFO] [stdout]     |
[INFO] [stdout] 678 |             match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:682:31
[INFO] [stdout]     |
[INFO] [stdout] 682 | ...   match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].obsolete_entries[e...
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:703:28
[INFO] [stdout]     |
[INFO] [stdout] 703 |         let mut out_file = try!(fs::File::create(&self.config_file_path));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:705:13
[INFO] [stdout]     |
[INFO] [stdout] 705 |             try!(out_file.write_all(line.as_bytes()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:706:13
[INFO] [stdout]     |
[INFO] [stdout] 706 |             try!(out_file.write_all(eol_mark.as_bytes()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:742:52
[INFO] [stdout]     |
[INFO] [stdout] 742 |         let (requested_section, requested_entry) = try!(ConfigSystem::parse_entry_specifier(entry_specifier));
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:748:54
[INFO] [stdout]     |
[INFO] [stdout] 748 |                 let (start_index, end_index) = match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:758:47
[INFO] [stdout]     |
[INFO] [stdout] 758 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:778:50
[INFO] [stdout]     |
[INFO] [stdout] 778 |             let (start_index, end_index) = match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:787:39
[INFO] [stdout]     |
[INFO] [stdout] 787 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:802:52
[INFO] [stdout]     |
[INFO] [stdout] 802 |         let (requested_section, requested_entry) = try!(ConfigSystem::parse_entry_specifier(entry_specifier));
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:808:54
[INFO] [stdout]     |
[INFO] [stdout] 808 |                 let (start_index, end_index) = match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:818:47
[INFO] [stdout]     |
[INFO] [stdout] 818 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:824:25
[INFO] [stdout]     |
[INFO] [stdout] 824 | ...   try!((self.config_sections[section_iter].entries[entry_iter].parse_entry)(ConfigInfoSource::from_external_source(&self.config_secti...
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:828:33
[INFO] [stdout]     |
[INFO] [stdout] 828 | ...                   try!(self.write_config_file());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:941:31
[INFO] [stdout]     |
[INFO] [stdout] 941 |         let mut config_file = try!(fs::File::open(config_file_path));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:943:9
[INFO] [stdout]     |
[INFO] [stdout] 943 |         try!(config_file.read_to_string(&mut buffer));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:971:9
[INFO] [stdout]     |
[INFO] [stdout] 971 |         try!(fs::File::create(config_file_path));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/user_interface.rs:1230:10
[INFO] [stdout]      |
[INFO] [stdout] 1230 |         };
[INFO] [stdout]      |          ^ help: remove this semicolon
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/keyboard.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 | /             (0 | if (specifier & 0x01) != 0 { self.key_matrix[0] } else { 0 }
[INFO] [stdout] 42 | |                | if (specifier & 0x02) != 0 { self.key_matrix[1] } else { 0 }
[INFO] [stdout] 43 | |                | if (specifier & 0x04) != 0 { self.key_matrix[2] } else { 0 }
[INFO] [stdout] 44 | |                | if (specifier & 0x08) != 0 { self.key_matrix[3] } else { 0 }
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |                | if (specifier & 0x40) != 0 { self.key_matrix[6] } else { 0 }
[INFO] [stdout] 48 | |                | if (specifier & 0x80) != 0 { self.key_matrix[7] } else { 0 })
[INFO] [stdout]    | |______________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 41 |             0 | if (specifier & 0x01) != 0 { self.key_matrix[0] } else { 0 }
[INFO] [stdout] 42 |                | if (specifier & 0x02) != 0 { self.key_matrix[1] } else { 0 }
[INFO] [stdout] 43 |                | if (specifier & 0x04) != 0 { self.key_matrix[2] } else { 0 }
[INFO] [stdout] 44 |                | if (specifier & 0x08) != 0 { self.key_matrix[3] } else { 0 }
[INFO] [stdout] 45 |                | if (specifier & 0x10) != 0 { self.key_matrix[4] } else { 0 }
[INFO] [stdout] 46 |                | if (specifier & 0x20) != 0 { self.key_matrix[5] } else { 0 }
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:205:17
[INFO] [stdout]     |
[INFO] [stdout] 205 |                 try!(info_source.error_prefix(f));
[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/proj_config.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:217:17
[INFO] [stdout]     |
[INFO] [stdout] 217 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:225:17
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:233:17
[INFO] [stdout]     |
[INFO] [stdout] 233 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:253:17
[INFO] [stdout]     |
[INFO] [stdout] 253 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:261:17
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 try!(info_source.error_prefix(f));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:555:19
[INFO] [stdout]     |
[INFO] [stdout] 555 |             match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:576:39
[INFO] [stdout]     |
[INFO] [stdout] 576 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:588:25
[INFO] [stdout]     |
[INFO] [stdout] 588 | ...   try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].entries[entry_iter].entr...
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:591:17
[INFO] [stdout]     |
[INFO] [stdout] 591 | ...   try!((self.config_sections[section_iter].entries[entry_iter].parse_entry)(ConfigInfoSource::from_config_file(entry_loc, &self.conf_...
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:678:19
[INFO] [stdout]     |
[INFO] [stdout] 678 |             match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:682:31
[INFO] [stdout]     |
[INFO] [stdout] 682 | ...   match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].obsolete_entries[e...
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:703:28
[INFO] [stdout]     |
[INFO] [stdout] 703 |         let mut out_file = try!(fs::File::create(&self.config_file_path));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:705:13
[INFO] [stdout]     |
[INFO] [stdout] 705 |             try!(out_file.write_all(line.as_bytes()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:706:13
[INFO] [stdout]     |
[INFO] [stdout] 706 |             try!(out_file.write_all(eol_mark.as_bytes()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:742:52
[INFO] [stdout]     |
[INFO] [stdout] 742 |         let (requested_section, requested_entry) = try!(ConfigSystem::parse_entry_specifier(entry_specifier));
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:748:54
[INFO] [stdout]     |
[INFO] [stdout] 748 |                 let (start_index, end_index) = match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:758:47
[INFO] [stdout]     |
[INFO] [stdout] 758 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:778:50
[INFO] [stdout]     |
[INFO] [stdout] 778 |             let (start_index, end_index) = match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:787:39
[INFO] [stdout]     |
[INFO] [stdout] 787 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:802:52
[INFO] [stdout]     |
[INFO] [stdout] 802 |         let (requested_section, requested_entry) = try!(ConfigSystem::parse_entry_specifier(entry_specifier));
[INFO] [stdout]     |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:808:54
[INFO] [stdout]     |
[INFO] [stdout] 808 |                 let (start_index, end_index) = match try!(self.find_section(&self.config_sections[section_iter].section_name)) {
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:818:47
[INFO] [stdout]     |
[INFO] [stdout] 818 | ...   let entry_loc = match try!(self.find_entry(&self.config_sections[section_iter].section_name, &self.config_sections[section_iter].en...
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:824:25
[INFO] [stdout]     |
[INFO] [stdout] 824 | ...   try!((self.config_sections[section_iter].entries[entry_iter].parse_entry)(ConfigInfoSource::from_external_source(&self.config_secti...
[INFO] [stdout]     |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:828:33
[INFO] [stdout]     |
[INFO] [stdout] 828 | ...                   try!(self.write_config_file());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:941:31
[INFO] [stdout]     |
[INFO] [stdout] 941 |         let mut config_file = try!(fs::File::open(config_file_path));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:943:9
[INFO] [stdout]     |
[INFO] [stdout] 943 |         try!(config_file.read_to_string(&mut buffer));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proj_config.rs:971:9
[INFO] [stdout]     |
[INFO] [stdout] 971 |         try!(fs::File::create(config_file_path));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/user_interface.rs:1230:10
[INFO] [stdout]      |
[INFO] [stdout] 1230 |         };
[INFO] [stdout]      |          ^ help: remove this semicolon
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/proj_config.rs:896:35
[INFO] [stdout]     |
[INFO] [stdout] 896 |         let mut config_dir_path = env::home_dir().expect(".expect() call: Failed to find the home directory");
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/proj_config.rs:896:35
[INFO] [stdout]     |
[INFO] [stdout] 896 |         let mut config_dir_path = env::home_dir().expect(".expect() call: Failed to find the home directory");
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/proj_config.rs:322:76
[INFO] [stdout]     |
[INFO] [stdout] 322 |             ConfigError::IoError(ref io_error)               => { io_error.description() },
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/proj_config.rs:322:76
[INFO] [stdout]     |
[INFO] [stdout] 322 |             ConfigError::IoError(ref io_error)               => { io_error.description() },
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `avg`
[INFO] [stdout]    --> src/cassette.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     avg:             f32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `env`
[INFO] [stdout]    --> src/cassette.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     env:             f32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `noise_floor`
[INFO] [stdout]    --> src/cassette.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     noise_floor:     i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sample_rate`
[INFO] [stdout]    --> src/cassette.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     sample_rate:     i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_sound`
[INFO] [stdout]    --> src/cassette.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     last_sound:      u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MachineMessage`
[INFO] [stdout]   --> src/user_interface.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     MachineMessage { complete: bool },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_physical_line_len`
[INFO] [stdout]   --> src/user_interface.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn last_physical_line_len(&self, screen_width: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `machine_line_add_char`
[INFO] [stdout]     --> src/user_interface.rs:1316:12
[INFO] [stdout]      |
[INFO] [stdout] 1316 |     pub fn machine_line_add_char(&mut self, char_to_add: char) {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `machine_line_finalize`
[INFO] [stdout]     --> src/user_interface.rs:1319:12
[INFO] [stdout]      |
[INFO] [stdout] 1319 |     pub fn machine_line_finalize(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `needs_update`
[INFO] [stdout]   --> src/video.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     needs_update:  bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `avg`
[INFO] [stdout]    --> src/cassette.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 |     avg:             f32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `env`
[INFO] [stdout]    --> src/cassette.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     env:             f32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `noise_floor`
[INFO] [stdout]    --> src/cassette.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     noise_floor:     i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sample_rate`
[INFO] [stdout]    --> src/cassette.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     sample_rate:     i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_sound`
[INFO] [stdout]    --> src/cassette.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     last_sound:      u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MachineMessage`
[INFO] [stdout]   --> src/user_interface.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     MachineMessage { complete: bool },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_physical_line_len`
[INFO] [stdout]   --> src/user_interface.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn last_physical_line_len(&self, screen_width: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `machine_line_add_char`
[INFO] [stdout]     --> src/user_interface.rs:1316:12
[INFO] [stdout]      |
[INFO] [stdout] 1316 |     pub fn machine_line_add_char(&mut self, char_to_add: char) {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `machine_line_finalize`
[INFO] [stdout]     --> src/user_interface.rs:1319:12
[INFO] [stdout]      |
[INFO] [stdout] 1319 |     pub fn machine_line_finalize(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `needs_update`
[INFO] [stdout]   --> src/video.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     needs_update:  bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 54 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 54 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.57s
[INFO] running `Command { std: "docker" "inspect" "bdb3669f889a3fa349c1d303757bd65ffa6a4849c2629a7a68eef91d316cb9b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb3669f889a3fa349c1d303757bd65ffa6a4849c2629a7a68eef91d316cb9b8", kill_on_drop: false }`
[INFO] [stdout] bdb3669f889a3fa349c1d303757bd65ffa6a4849c2629a7a68eef91d316cb9b8