[INFO] cloning repository https://github.com/dominikabobik/guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dominikabobik/guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominikabobik%2Fguessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominikabobik%2Fguessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e9a9f18bf58579f1800858081af931ab27366fb
[INFO] checking dominikabobik/guessing-game/1e9a9f18bf58579f1800858081af931ab27366fb against try#9a6ce9bcee4fff9f2010ea88aaa7654cc4d95132 for pr-133274
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominikabobik%2Fguessing-game" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dominikabobik/guessing-game on toolchain 9a6ce9bcee4fff9f2010ea88aaa7654cc4d95132
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a6ce9bcee4fff9f2010ea88aaa7654cc4d95132" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dominikabobik/guessing-game
[INFO] finished tweaking git repo https://github.com/dominikabobik/guessing-game
[INFO] tweaked toml for git repo https://github.com/dominikabobik/guessing-game written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dominikabobik/guessing-game 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" "+9a6ce9bcee4fff9f2010ea88aaa7654cc4d95132" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+9a6ce9bcee4fff9f2010ea88aaa7654cc4d95132" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93a20a9febd2426d16e184c425c2f8151b8a5da3dc2191ce7cbf12937ab86beb
[INFO] running `Command { std: "docker" "start" "-a" "93a20a9febd2426d16e184c425c2f8151b8a5da3dc2191ce7cbf12937ab86beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93a20a9febd2426d16e184c425c2f8151b8a5da3dc2191ce7cbf12937ab86beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a20a9febd2426d16e184c425c2f8151b8a5da3dc2191ce7cbf12937ab86beb", kill_on_drop: false }`
[INFO] [stdout] 93a20a9febd2426d16e184c425c2f8151b8a5da3dc2191ce7cbf12937ab86beb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+9a6ce9bcee4fff9f2010ea88aaa7654cc4d95132" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2b629c2fd5403d0c0263c46944e93dd6996215aa5feb30ae6bc81a75081dc23
[INFO] running `Command { std: "docker" "start" "-a" "c2b629c2fd5403d0c0263c46944e93dd6996215aa5feb30ae6bc81a75081dc23", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking guessing-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guess`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let guess: i32 = args[1].parse().unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guess`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let guess: i32 = args[1].parse().unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `decrement_score` is never used
[INFO] [stdout]   --> src/player.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 7  |   impl Player {
[INFO] [stdout]    |   ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |       pub fn decrement_score(&mut self, value: i32) -> i32
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `decrement_score` is never used
[INFO] [stdout]   --> src/player.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 7  |   impl Player {
[INFO] [stdout]    |   ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |       pub fn decrement_score(&mut self, value: i32) -> i32
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "c2b629c2fd5403d0c0263c46944e93dd6996215aa5feb30ae6bc81a75081dc23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b629c2fd5403d0c0263c46944e93dd6996215aa5feb30ae6bc81a75081dc23", kill_on_drop: false }`
[INFO] [stdout] c2b629c2fd5403d0c0263c46944e93dd6996215aa5feb30ae6bc81a75081dc23