[INFO] fetching crate hd44780 0.2.2...
[INFO] testing hd44780-0.2.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate hd44780 0.2.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate hd44780 0.2.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hd44780 0.2.2
[INFO] finished tweaking crates.io crate hd44780 0.2.2
[INFO] tweaked toml for crates.io crate hd44780 0.2.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00480fbdc5fa60d68e658765530e3992937e58e1e95638d8524ed32b64fcd21f
[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" "00480fbdc5fa60d68e658765530e3992937e58e1e95638d8524ed32b64fcd21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00480fbdc5fa60d68e658765530e3992937e58e1e95638d8524ed32b64fcd21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00480fbdc5fa60d68e658765530e3992937e58e1e95638d8524ed32b64fcd21f", kill_on_drop: false }`
[INFO] [stdout] 00480fbdc5fa60d68e658765530e3992937e58e1e95638d8524ed32b64fcd21f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41297fddc392b60b24692f78d17a3f65ae944e2896097e98b717e92c713b8f98
[INFO] running `Command { std: "docker" "start" "-a" "41297fddc392b60b24692f78d17a3f65ae944e2896097e98b717e92c713b8f98", kill_on_drop: false }`
[INFO] [stderr]    Compiling hd44780 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     host: Box<HD44780Host>
[INFO] [stdout]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(h: Box<HD44780Host>) -> HD44780 {
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/core.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         try!(self.host.init());
[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/hosts.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(export.flush());
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut export = try!(fso.open("/sys/class/gpio/export"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             try!(export.write_all(b"7"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             try!(export.write_all(b"8"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             try!(export.write_all(b"25"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             try!(export.write_all(b"24"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             try!(export.write_all(b"23"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try!(export.write_all(b"18"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 |             self.rs = Some(try!(fso.open(gpio7)));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 |             self.enable = Some(try!(fso.open(gpio8)));
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             self.data4 = Some(try!(fso.open(gpio25)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:80:31
[INFO] [stdout]    |
[INFO] [stdout] 80 |             self.data5 = Some(try!(fso.open(gpio24)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:84:31
[INFO] [stdout]    |
[INFO] [stdout] 84 |             self.data6 = Some(try!(fso.open(gpio23)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:88:31
[INFO] [stdout]    |
[INFO] [stdout] 88 |             self.data7 = Some(try!(fso.open(gpio18)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         try!(file.write_all(b"out"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         try!(file.flush());
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:105:29
[INFO] [stdout]     |
[INFO] [stdout] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         try!(self.try_open_io());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         try!(self.init_gpio());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         try!(self.try_open_io());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         try!(self.init_out_dir());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "41297fddc392b60b24692f78d17a3f65ae944e2896097e98b717e92c713b8f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41297fddc392b60b24692f78d17a3f65ae944e2896097e98b717e92c713b8f98", kill_on_drop: false }`
[INFO] [stdout] 41297fddc392b60b24692f78d17a3f65ae944e2896097e98b717e92c713b8f98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f3ef56a26830a75b816cb9e5dc47b4a2588de96cceb3a2ba619201c54dfd6e2
[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" "7f3ef56a26830a75b816cb9e5dc47b4a2588de96cceb3a2ba619201c54dfd6e2", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     host: Box<HD44780Host>
[INFO] [stdout]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hd44780 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(h: Box<HD44780Host>) -> HD44780 {
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/core.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         try!(self.host.init());
[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/hosts.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(export.flush());
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut export = try!(fso.open("/sys/class/gpio/export"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             try!(export.write_all(b"7"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             try!(export.write_all(b"8"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             try!(export.write_all(b"25"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             try!(export.write_all(b"24"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             try!(export.write_all(b"23"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try!(export.write_all(b"18"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 |             self.rs = Some(try!(fso.open(gpio7)));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 |             self.enable = Some(try!(fso.open(gpio8)));
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             self.data4 = Some(try!(fso.open(gpio25)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:80:31
[INFO] [stdout]    |
[INFO] [stdout] 80 |             self.data5 = Some(try!(fso.open(gpio24)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:84:31
[INFO] [stdout]    |
[INFO] [stdout] 84 |             self.data6 = Some(try!(fso.open(gpio23)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:88:31
[INFO] [stdout]    |
[INFO] [stdout] 88 |             self.data7 = Some(try!(fso.open(gpio18)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         try!(file.write_all(b"out"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         try!(file.flush());
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:105:29
[INFO] [stdout]     |
[INFO] [stdout] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         try!(self.try_open_io());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         try!(self.init_gpio());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         try!(self.try_open_io());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         try!(self.init_out_dir());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     host: Box<HD44780Host>
[INFO] [stdout]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/core.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(h: Box<HD44780Host>) -> HD44780 {
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/core.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         try!(self.host.init());
[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/hosts.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(export.flush());
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut export = try!(fso.open("/sys/class/gpio/export"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             try!(export.write_all(b"7"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             try!(export.write_all(b"8"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             try!(export.write_all(b"25"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             try!(export.write_all(b"24"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             try!(export.write_all(b"23"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try!(export.write_all(b"18"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:68:28
[INFO] [stdout]    |
[INFO] [stdout] 68 |             self.rs = Some(try!(fso.open(gpio7)));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:72:32
[INFO] [stdout]    |
[INFO] [stdout] 72 |             self.enable = Some(try!(fso.open(gpio8)));
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             self.data4 = Some(try!(fso.open(gpio25)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:80:31
[INFO] [stdout]    |
[INFO] [stdout] 80 |             self.data5 = Some(try!(fso.open(gpio24)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:84:31
[INFO] [stdout]    |
[INFO] [stdout] 84 |             self.data6 = Some(try!(fso.open(gpio23)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:88:31
[INFO] [stdout]    |
[INFO] [stdout] 88 |             self.data7 = Some(try!(fso.open(gpio18)));
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         try!(file.write_all(b"out"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/hosts.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         try!(file.flush());
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:105:29
[INFO] [stdout]     |
[INFO] [stdout] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         try!(self.try_open_io());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         try!(self.init_gpio());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         try!(self.try_open_io());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/hosts.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         try!(self.init_out_dir());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "7f3ef56a26830a75b816cb9e5dc47b4a2588de96cceb3a2ba619201c54dfd6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f3ef56a26830a75b816cb9e5dc47b4a2588de96cceb3a2ba619201c54dfd6e2", kill_on_drop: false }`
[INFO] [stdout] 7f3ef56a26830a75b816cb9e5dc47b4a2588de96cceb3a2ba619201c54dfd6e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50d62fbaf6cc26793228dd31f7b0333ab87006e7b7e6a37eb73cbc537f949832
[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" "50d62fbaf6cc26793228dd31f7b0333ab87006e7b7e6a37eb73cbc537f949832", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 |     host: Box<HD44780Host>
[INFO] [stderr]    |               ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(h: Box<HD44780Host>) -> HD44780 {
[INFO] [stderr]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn HD44780Host`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/core.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         try!(self.host.init());
[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/hosts.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         try!(export.flush());
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let mut export = try!(fso.open("/sys/class/gpio/export"));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             try!(export.write_all(b"7"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             try!(export.write_all(b"8"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |             try!(export.write_all(b"25"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             try!(export.write_all(b"24"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             try!(export.write_all(b"23"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             try!(export.write_all(b"18"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:68:28
[INFO] [stderr]    |
[INFO] [stderr] 68 |             self.rs = Some(try!(fso.open(gpio7)));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:72:32
[INFO] [stderr]    |
[INFO] [stderr] 72 |             self.enable = Some(try!(fso.open(gpio8)));
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:76:31
[INFO] [stderr]    |
[INFO] [stderr] 76 |             self.data4 = Some(try!(fso.open(gpio25)));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:80:31
[INFO] [stderr]    |
[INFO] [stderr] 80 |             self.data5 = Some(try!(fso.open(gpio24)));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:84:31
[INFO] [stderr]    |
[INFO] [stderr] 84 |             self.data6 = Some(try!(fso.open(gpio23)));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:88:31
[INFO] [stderr]    |
[INFO] [stderr] 88 |             self.data7 = Some(try!(fso.open(gpio18)));
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         try!(file.write_all(b"out"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/hosts.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         try!(file.flush());
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:102:29
[INFO] [stderr]     |
[INFO] [stderr] 102 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio7/direction"))));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:103:29
[INFO] [stderr]     |
[INFO] [stderr] 103 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio8/direction"))));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:104:29
[INFO] [stderr]     |
[INFO] [stderr] 104 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio25/direction"))));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:105:29
[INFO] [stderr]     |
[INFO] [stderr] 105 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio24/direction"))));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:106:29
[INFO] [stderr]     |
[INFO] [stderr] 106 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio23/direction"))));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:107:29
[INFO] [stderr]     |
[INFO] [stderr] 107 |         try!(self.write_out(try!(fso.open("/sys/class/gpio/gpio18/direction"))));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         try!(self.try_open_io());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         try!(self.init_gpio());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         try!(self.try_open_io());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/hosts.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         try!(self.init_out_dir());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hd44780` (lib) generated 35 warnings
[INFO] [stderr] warning: `hd44780` (lib test) generated 35 warnings (35 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hd44780-2d8f36cb01b5e9d6)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hd44780-d1bbf44cfa80d3b0)
[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]    Doc-tests hd44780
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "50d62fbaf6cc26793228dd31f7b0333ab87006e7b7e6a37eb73cbc537f949832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d62fbaf6cc26793228dd31f7b0333ab87006e7b7e6a37eb73cbc537f949832", kill_on_drop: false }`
[INFO] [stdout] 50d62fbaf6cc26793228dd31f7b0333ab87006e7b7e6a37eb73cbc537f949832