[INFO] updating cached repository mgdm/med
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mgdm/med
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mgdm/med" "work/ex/beta-1.38-1/sources/1.37.0/gh/mgdm/med"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mgdm/med'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mgdm/med" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mgdm/med"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mgdm/med'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0694c96dd315d61da16b0836c12c5ed18af5815f
[INFO] sha for GitHub repo mgdm/med: 0694c96dd315d61da16b0836c12c5ed18af5815f
[INFO] validating manifest of mgdm/med on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mgdm/med on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mgdm/med
[INFO] finished frobbing mgdm/med
[INFO] frobbed toml for mgdm/med written to work/ex/beta-1.38-1/sources/1.37.0/gh/mgdm/med/Cargo.toml
[INFO] started frobbing mgdm/med
[INFO] finished frobbing mgdm/med
[INFO] frobbed toml for mgdm/med written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mgdm/med/Cargo.toml
[INFO] crate mgdm/med already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mgdm/med against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mgdm/med:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] aef52c77a4994f07ffc623a4bcd478a05f7092b1b7e1c3c74b017972bbcb7731
[INFO] running `"docker" "start" "-a" "aef52c77a4994f07ffc623a4bcd478a05f7092b1b7e1c3c74b017972bbcb7731"`
[INFO] [stderr]    Compiling text_io v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling med v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Stdin`
[INFO] [stderr]  --> src/input.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Stdin`, `Stdout`
[INFO] [stderr]  --> src/screen.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Stdin, Stdout};
[INFO] [stderr]   |               ^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `StdinLock`, `Stdin`, `StdoutLock`, `Stdout`
[INFO] [stderr]  --> src/cursor.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{ Stdin, StdinLock, Stdout, StdoutLock };
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^^  ^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/screen.rs:81:38
[INFO] [stderr]    |
[INFO] [stderr] 81 |             return String::from(rows.trim_right());
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/screen.rs:100:39
[INFO] [stderr]     |
[INFO] [stderr] 100 |         format!("{}{}{}{}{}{}", first.trim_right(), padding, WELCOME, VERSION, "\r\n", last)
[INFO] [stderr]     |                                       ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `remainder`
[INFO] [stderr]   --> src/screen.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let remainder = self.height - welcome_pos - 1;
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/cursor.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |             Ok(s) => {
[INFO] [stderr]    |                ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut stdio = Stdio::new(io::stdin(), io::stdout());
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `CLEAR_LINE`
[INFO] [stderr]   --> src/screen.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | static CLEAR_LINE: &'static str = "\x1b[K";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cursor_x`
[INFO] [stderr]   --> src/screen.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     cursor_x: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cursor_y`
[INFO] [stderr]   --> src/screen.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     cursor_y: usize
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/screen.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn clear(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `POSITION_REPORT`
[INFO] [stderr]  --> src/cursor.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | static POSITION_REPORT: &'static str = "\x1b[6n\r\n";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `SHOW_CURSOR`
[INFO] [stderr]  --> src/cursor.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | static SHOW_CURSOR: &'static str = "\x1b[?25h";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `HIDE_CURSOR`
[INFO] [stderr]  --> src/cursor.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | static HIDE_CURSOR: &'static str = "\x1b[?25l";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cursor`
[INFO] [stderr]   --> src/cursor.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Cursor {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cursor.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(x_limit: usize, y_limit: usize, stdio: Stdio) -> Cursor {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_position`
[INFO] [stderr]   --> src/cursor.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn get_position(&self) -> io::Result<(usize, usize)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `show`
[INFO] [stderr]   --> src/cursor.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn show(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hide`
[INFO] [stderr]   --> src/cursor.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn hide(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `move_to`
[INFO] [stderr]   --> src/cursor.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn move_to(&self, x: u8, y: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/cursor.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn write(&self, bytes: &[u8]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_ctrl`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn is_ctrl(c: u8) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "aef52c77a4994f07ffc623a4bcd478a05f7092b1b7e1c3c74b017972bbcb7731"`
[INFO] running `"docker" "rm" "-f" "aef52c77a4994f07ffc623a4bcd478a05f7092b1b7e1c3c74b017972bbcb7731"`
[INFO] [stdout] aef52c77a4994f07ffc623a4bcd478a05f7092b1b7e1c3c74b017972bbcb7731
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mgdm/med:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4d76ddbe5132a89c89618f39de67ed8fee85e98859076e7967fa706d99c95d3e
[INFO] running `"docker" "start" "-a" "4d76ddbe5132a89c89618f39de67ed8fee85e98859076e7967fa706d99c95d3e"`
[INFO] [stderr]    Compiling med v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Stdin`
[INFO] [stderr]  --> src/input.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::Stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Stdin`, `Stdout`
[INFO] [stderr]  --> src/screen.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Stdin, Stdout};
[INFO] [stderr]   |               ^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `StdinLock`, `Stdin`, `StdoutLock`, `Stdout`
[INFO] [stderr]  --> src/cursor.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{ Stdin, StdinLock, Stdout, StdoutLock };
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^^  ^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/screen.rs:81:38
[INFO] [stderr]    |
[INFO] [stderr] 81 |             return String::from(rows.trim_right());
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/screen.rs:100:39
[INFO] [stderr]     |
[INFO] [stderr] 100 |         format!("{}{}{}{}{}{}", first.trim_right(), padding, WELCOME, VERSION, "\r\n", last)
[INFO] [stderr]     |                                       ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `remainder`
[INFO] [stderr]   --> src/screen.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let remainder = self.height - welcome_pos - 1;
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/cursor.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |             Ok(s) => {
[INFO] [stderr]    |                ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut stdio = Stdio::new(io::stdin(), io::stdout());
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `CLEAR_LINE`
[INFO] [stderr]   --> src/screen.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | static CLEAR_LINE: &'static str = "\x1b[K";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cursor_x`
[INFO] [stderr]   --> src/screen.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     cursor_x: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cursor_y`
[INFO] [stderr]   --> src/screen.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     cursor_y: usize
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/screen.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn clear(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `POSITION_REPORT`
[INFO] [stderr]  --> src/cursor.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | static POSITION_REPORT: &'static str = "\x1b[6n\r\n";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `SHOW_CURSOR`
[INFO] [stderr]  --> src/cursor.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | static SHOW_CURSOR: &'static str = "\x1b[?25h";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `HIDE_CURSOR`
[INFO] [stderr]  --> src/cursor.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | static HIDE_CURSOR: &'static str = "\x1b[?25l";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cursor`
[INFO] [stderr]   --> src/cursor.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Cursor {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/cursor.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(x_limit: usize, y_limit: usize, stdio: Stdio) -> Cursor {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_position`
[INFO] [stderr]   --> src/cursor.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn get_position(&self) -> io::Result<(usize, usize)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `show`
[INFO] [stderr]   --> src/cursor.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn show(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hide`
[INFO] [stderr]   --> src/cursor.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn hide(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `move_to`
[INFO] [stderr]   --> src/cursor.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn move_to(&self, x: u8, y: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/cursor.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn write(&self, bytes: &[u8]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_ctrl`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn is_ctrl(c: u8) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "4d76ddbe5132a89c89618f39de67ed8fee85e98859076e7967fa706d99c95d3e"`
[INFO] running `"docker" "rm" "-f" "4d76ddbe5132a89c89618f39de67ed8fee85e98859076e7967fa706d99c95d3e"`
[INFO] [stdout] 4d76ddbe5132a89c89618f39de67ed8fee85e98859076e7967fa706d99c95d3e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mgdm/med:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 19622a8aa36d06caeaba9db91bae5c98d9bad62e88cb343825d32266598e94db
[INFO] running `"docker" "start" "-a" "19622a8aa36d06caeaba9db91bae5c98d9bad62e88cb343825d32266598e94db"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/med-7e65900cb961754b
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "19622a8aa36d06caeaba9db91bae5c98d9bad62e88cb343825d32266598e94db"`
[INFO] running `"docker" "rm" "-f" "19622a8aa36d06caeaba9db91bae5c98d9bad62e88cb343825d32266598e94db"`
[INFO] [stdout] 19622a8aa36d06caeaba9db91bae5c98d9bad62e88cb343825d32266598e94db