Dec 19 11:14:07.897 INFO checking paskvale/todo against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:14:07.897 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/paskvale/todo:/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=forbid" "-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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:14:08.381 INFO [stdout] a147901bba39fe6c23d08c316061bb33f0ce1ea7ab31f08044f741015a46bad4
Dec 19 11:14:08.383 INFO running `"docker" "start" "-a" "a147901bba39fe6c23d08c316061bb33f0ce1ea7ab31f08044f741015a46bad4"`
Dec 19 11:14:10.265 INFO [stderr]     Checking shared_library v0.1.8
Dec 19 11:14:10.265 INFO [stderr]    Compiling serde v1.0.64
Dec 19 11:14:10.265 INFO [stderr]    Compiling wayland-scanner v0.20.8
Dec 19 11:14:10.293 INFO [stderr]     Checking x11-dl v2.17.5
Dec 19 11:14:10.293 INFO [stderr]    Compiling syn v0.14.1
Dec 19 11:14:10.294 INFO [stderr]    Compiling glutin v0.14.0
Dec 19 11:14:10.294 INFO [stderr]    Compiling glium v0.21.0
Dec 19 11:14:10.294 INFO [stderr]     Checking wayland-sys v0.20.8
Dec 19 11:14:10.441 INFO [stderr]     Checking wayland-client v0.12.5
Dec 19 11:14:12.018 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 19 11:14:19.700 INFO [stderr]     Checking wayland-commons v0.20.8
Dec 19 11:14:19.820 INFO [stderr]     Checking wayland-protocols v0.12.5
Dec 19 11:14:19.988 INFO [stderr]     Checking wayland-kbd v0.13.1
Dec 19 11:14:20.616 INFO [stderr]    Compiling wayland-client v0.20.8
Dec 19 11:14:20.788 INFO [stderr]    Compiling wayland-protocols v0.20.8
Dec 19 11:14:35.859 INFO [stderr]     Checking wayland-window v0.13.3
Dec 19 11:14:36.088 INFO [stderr]    Compiling serde_derive v1.0.64
Dec 19 11:14:38.357 INFO [stderr]     Checking winit v0.12.0
Dec 19 11:14:50.512 INFO [stderr]     Checking smithay-client-toolkit v0.2.1
Dec 19 11:14:55.405 INFO [stderr]     Checking winit v0.15.0
Dec 19 11:14:55.476 INFO [stderr]     Checking serde_json v1.0.19
Dec 19 11:15:10.600 INFO [stderr]     Checking pistoncore-input v0.21.0
Dec 19 11:15:19.944 INFO [stderr]     Checking conrod v0.60.0
Dec 19 11:15:27.829 INFO [stderr]     Checking todo v0.1.0 (/opt/crater/workdir)
Dec 19 11:15:28.092 INFO [stderr] warning: unused import: `std::io`
Dec 19 11:15:28.092 INFO [stderr]  --> src/main.rs:7:5
Dec 19 11:15:28.092 INFO [stderr]   |
Dec 19 11:15:28.092 INFO [stderr] 7 | use std::io;
Dec 19 11:15:28.092 INFO [stderr]   |     ^^^^^^^
Dec 19 11:15:28.092 INFO [stderr]   |
Dec 19 11:15:28.092 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 11:15:28.092 INFO [stderr] 
Dec 19 11:15:28.092 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 19 11:15:28.092 INFO [stderr]    --> src/gui.rs:158:9
Dec 19 11:15:28.092 INFO [stderr]     |
Dec 19 11:15:28.092 INFO [stderr] 158 |     use std::collections::HashMap;
Dec 19 11:15:28.092 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:28.092 INFO [stderr] 
Dec 19 11:15:28.224 INFO [stderr] warning: unused import: `std::io`
Dec 19 11:15:28.224 INFO [stderr]  --> src/main.rs:7:5
Dec 19 11:15:28.224 INFO [stderr]   |
Dec 19 11:15:28.224 INFO [stderr] 7 | use std::io;
Dec 19 11:15:28.224 INFO [stderr]   |     ^^^^^^^
Dec 19 11:15:28.224 INFO [stderr]   |
Dec 19 11:15:28.224 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 11:15:28.224 INFO [stderr] 
Dec 19 11:15:28.224 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 19 11:15:28.224 INFO [stderr]    --> src/gui.rs:158:9
Dec 19 11:15:28.224 INFO [stderr]     |
Dec 19 11:15:28.224 INFO [stderr] 158 |     use std::collections::HashMap;
Dec 19 11:15:28.224 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:28.224 INFO [stderr] 
Dec 19 11:15:28.232 INFO [stderr] warning: value assigned to `json` is never read
Dec 19 11:15:28.232 INFO [stderr]   --> src/file_manipulation.rs:57:17
Dec 19 11:15:28.232 INFO [stderr]    |
Dec 19 11:15:28.232 INFO [stderr] 57 |         let mut json = String::new();
Dec 19 11:15:28.232 INFO [stderr]    |                 ^^^^
Dec 19 11:15:28.232 INFO [stderr]    |
Dec 19 11:15:28.232 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 11:15:28.232 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 11:15:28.232 INFO [stderr] 
Dec 19 11:15:28.277 INFO [stderr] warning: method is never used: `new_item`
Dec 19 11:15:28.278 INFO [stderr]   --> src/file_manipulation.rs:52:5
Dec 19 11:15:28.278 INFO [stderr]    |
Dec 19 11:15:28.278 INFO [stderr] 52 |     pub fn new_item(&mut self, s: String) -> Result<i32, String> {
Dec 19 11:15:28.278 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:28.278 INFO [stderr]    |
Dec 19 11:15:28.279 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 11:15:28.279 INFO [stderr] 
Dec 19 11:15:28.279 INFO [stderr] warning: function is never used: `generate_string`
Dec 19 11:15:28.279 INFO [stderr]   --> src/file_manipulation.rs:88:1
Dec 19 11:15:28.279 INFO [stderr]    |
Dec 19 11:15:28.279 INFO [stderr] 88 | fn generate_string(length: u8) -> String{
Dec 19 11:15:28.279 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:28.279 INFO [stderr] 
Dec 19 11:15:28.279 INFO [stderr] warning: function is never used: `start`
Dec 19 11:15:28.279 INFO [stderr]    --> src/counter.rs:109:5
Dec 19 11:15:28.279 INFO [stderr]     |
Dec 19 11:15:28.279 INFO [stderr] 109 |     pub fn start() {
Dec 19 11:15:28.279 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 11:15:28.279 INFO [stderr] 
Dec 19 11:15:28.336 INFO [stderr] warning: value assigned to `json` is never read
Dec 19 11:15:28.336 INFO [stderr]   --> src/file_manipulation.rs:57:17
Dec 19 11:15:28.336 INFO [stderr]    |
Dec 19 11:15:28.336 INFO [stderr] 57 |         let mut json = String::new();
Dec 19 11:15:28.336 INFO [stderr]    |                 ^^^^
Dec 19 11:15:28.336 INFO [stderr]    |
Dec 19 11:15:28.336 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 11:15:28.336 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 11:15:28.336 INFO [stderr] 
Dec 19 11:15:28.390 INFO [stderr] warning: method is never used: `new_item`
Dec 19 11:15:28.390 INFO [stderr]   --> src/file_manipulation.rs:52:5
Dec 19 11:15:28.390 INFO [stderr]    |
Dec 19 11:15:28.390 INFO [stderr] 52 |     pub fn new_item(&mut self, s: String) -> Result<i32, String> {
Dec 19 11:15:28.390 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:28.390 INFO [stderr]    |
Dec 19 11:15:28.390 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 11:15:28.390 INFO [stderr] 
Dec 19 11:15:28.390 INFO [stderr] warning: function is never used: `generate_string`
Dec 19 11:15:28.390 INFO [stderr]   --> src/file_manipulation.rs:88:1
Dec 19 11:15:28.390 INFO [stderr]    |
Dec 19 11:15:28.390 INFO [stderr] 88 | fn generate_string(length: u8) -> String{
Dec 19 11:15:28.390 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:15:28.390 INFO [stderr] 
Dec 19 11:15:28.390 INFO [stderr] warning: function is never used: `start`
Dec 19 11:15:28.390 INFO [stderr]    --> src/counter.rs:109:5
Dec 19 11:15:28.390 INFO [stderr]     |
Dec 19 11:15:28.390 INFO [stderr] 109 |     pub fn start() {
Dec 19 11:15:28.390 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 11:15:28.390 INFO [stderr] 
Dec 19 11:15:28.413 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
Dec 19 11:15:29.345 INFO running `"docker" "inspect" "a147901bba39fe6c23d08c316061bb33f0ce1ea7ab31f08044f741015a46bad4"`
Dec 19 11:15:29.570 INFO running `"docker" "rm" "-f" "a147901bba39fe6c23d08c316061bb33f0ce1ea7ab31f08044f741015a46bad4"`
Dec 19 11:15:29.767 INFO [stdout] a147901bba39fe6c23d08c316061bb33f0ce1ea7ab31f08044f741015a46bad4