[INFO] cloning repository https://github.com/goldencm/rust-TypeSpeed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/goldencm/rust-TypeSpeed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoldencm%2Frust-TypeSpeed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoldencm%2Frust-TypeSpeed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1af30332f14bac404cfa74f3427b02e16c85e94
[INFO] checking goldencm/rust-TypeSpeed against try#14e4661efa5acbf985e4fe564baae04683366cc1 for pr-157696
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoldencm%2Frust-TypeSpeed" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/goldencm/rust-TypeSpeed
[INFO] finished tweaking git repo https://github.com/goldencm/rust-TypeSpeed
[INFO] tweaked toml for git repo https://github.com/goldencm/rust-TypeSpeed written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/goldencm/rust-TypeSpeed on toolchain 14e4661efa5acbf985e4fe564baae04683366cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/goldencm/rust-TypeSpeed already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0
[INFO] running `Command { std: "docker" "start" "6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/app.rs:7:56
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader, Seek,Read, SeekFrom, Write};
[INFO] [stdout]   |                                                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/app.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/app.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `conrod_core::widget::range_slider`
[INFO] [stdout]  --> src/logic.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     use conrod_core::widget::range_slider;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Button` and `RangeSlider`
[INFO] [stdout]  --> src/logic.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use conrod_core::widget::{Button, Canvas, RangeSlider, Text, TextBox};
[INFO] [stdout]   |                               ^^^^^^          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Labelable`
[INFO] [stdout]   --> src/logic.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use conrod_core::{color, Colorable, Labelable, Positionable, Sizeable};
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/app.rs:7:56
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader, Seek,Read, SeekFrom, Write};
[INFO] [stdout]   |                                                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/app.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> src/app.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `conrod_core::widget::range_slider`
[INFO] [stdout]  --> src/logic.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     use conrod_core::widget::range_slider;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Button` and `RangeSlider`
[INFO] [stdout]  --> src/logic.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use conrod_core::widget::{Button, Canvas, RangeSlider, Text, TextBox};
[INFO] [stdout]   |                               ^^^^^^          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Labelable`
[INFO] [stdout]   --> src/logic.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use conrod_core::{color, Colorable, Labelable, Positionable, Sizeable};
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/app.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader, Seek,Read, SeekFrom, Write};
[INFO] [stdout]   |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut indexed_line_reader = IndexedLineReader::new(BufReader::new(file_reader), 100);
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `caption`
[INFO] [stdout]   --> src/logic.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let caption = format!("Hello World!");
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_caption`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> src/logic.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multi`
[INFO] [stdout]   --> src/logic.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_multi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xpos`
[INFO] [stdout]   --> src/logic.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_xpos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]    --> src/logic.rs:106:34
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multi`
[INFO] [stdout]    --> src/logic.rs:106:40
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_multi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xpos`
[INFO] [stdout]    --> src/logic.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_xpos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `speedMultiplier` should have a snake case name
[INFO] [stdout]   --> src/app.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub speedMultiplier : i32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `speed_multiplier`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.indexed_line_reader.seek(SeekFrom::Start(rand::thread_rng().gen_range(0, self.num_words as u64)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let _ = self.indexed_line_reader.seek(SeekFrom::Start(rand::thread_rng().gen_range(0, self.num_words as u64)));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/app.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader, Seek,Read, SeekFrom, Write};
[INFO] [stdout]   |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut indexed_line_reader = IndexedLineReader::new(BufReader::new(file_reader), 100);
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `caption`
[INFO] [stdout]   --> src/logic.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let caption = format!("Hello World!");
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_caption`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> src/logic.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multi`
[INFO] [stdout]   --> src/logic.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_multi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xpos`
[INFO] [stdout]   --> src/logic.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_xpos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]    --> src/logic.rs:106:34
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multi`
[INFO] [stdout]    --> src/logic.rs:106:40
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_multi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xpos`
[INFO] [stdout]    --> src/logic.rs:106:47
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   let (word, multi, xpos) = game.strings.get(&key).unwrap();
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_xpos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `speedMultiplier` should have a snake case name
[INFO] [stdout]   --> src/app.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub speedMultiplier : i32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `speed_multiplier`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         self.indexed_line_reader.seek(SeekFrom::Start(rand::thread_rng().gen_range(0, self.num_words as u64)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let _ = self.indexed_line_reader.seek(SeekFrom::Start(rand::thread_rng().gen_range(0, self.num_words as u64)));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: glutin v0.19.0, winit v0.18.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0", kill_on_drop: false }`
[INFO] [stdout] 6eed727948b0b38c8be059c20319fba5424f58d8f358e98cdcc8a7beb3670ff0
