[INFO] cloning repository https://github.com/alekseinovikov/rust-crossterm-snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alekseinovikov/rust-crossterm-snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekseinovikov%2Frust-crossterm-snake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekseinovikov%2Frust-crossterm-snake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23ad2b324574ed2fb5303b34bca28be0441cebc9
[INFO] checking alekseinovikov/rust-crossterm-snake against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekseinovikov%2Frust-crossterm-snake" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alekseinovikov/rust-crossterm-snake on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alekseinovikov/rust-crossterm-snake
[INFO] finished tweaking git repo https://github.com/alekseinovikov/rust-crossterm-snake
[INFO] tweaked toml for git repo https://github.com/alekseinovikov/rust-crossterm-snake written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/alekseinovikov/rust-crossterm-snake 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81e72302547a60a1459fd54c52e3b21b43e06d95d536939b3ae264dd2d00345a
[INFO] running `Command { std: "docker" "start" "-a" "81e72302547a60a1459fd54c52e3b21b43e06d95d536939b3ae264dd2d00345a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81e72302547a60a1459fd54c52e3b21b43e06d95d536939b3ae264dd2d00345a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e72302547a60a1459fd54c52e3b21b43e06d95d536939b3ae264dd2d00345a", kill_on_drop: false }`
[INFO] [stdout] 81e72302547a60a1459fd54c52e3b21b43e06d95d536939b3ae264dd2d00345a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65b81d4f0cf3127564f0218d55ea29cf552d909db3794dac701787a0c781a3da
[INFO] running `Command { std: "docker" "start" "-a" "65b81d4f0cf3127564f0218d55ea29cf552d909db3794dac701787a0c781a3da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]     Checking rust-crossterm-snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Color`, `ExecutableCommand`, `QueueableCommand`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `style`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...r, event, ExecutableCommand, execute, QueueableCommand, Result, style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, style, t...
[INFO] [stdout]   |       ^^^^^  ^^^^^^^^^^^^^^^^^           ^^^^^^^^^^^^^^^^                  ^^^^^         ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossterm::style::Stylize`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crossterm::style::Stylize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Color`, `ExecutableCommand`, `QueueableCommand`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `style`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...r, event, ExecutableCommand, execute, QueueableCommand, Result, style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, style, t...
[INFO] [stdout]   |       ^^^^^  ^^^^^^^^^^^^^^^^^           ^^^^^^^^^^^^^^^^                  ^^^^^         ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossterm::style::Stylize`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crossterm::style::Stylize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdout, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdout, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "65b81d4f0cf3127564f0218d55ea29cf552d909db3794dac701787a0c781a3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b81d4f0cf3127564f0218d55ea29cf552d909db3794dac701787a0c781a3da", kill_on_drop: false }`
[INFO] [stdout] 65b81d4f0cf3127564f0218d55ea29cf552d909db3794dac701787a0c781a3da
[INFO] checking alekseinovikov/rust-crossterm-snake against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekseinovikov%2Frust-crossterm-snake" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alekseinovikov/rust-crossterm-snake on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alekseinovikov/rust-crossterm-snake
[INFO] finished tweaking git repo https://github.com/alekseinovikov/rust-crossterm-snake
[INFO] tweaked toml for git repo https://github.com/alekseinovikov/rust-crossterm-snake written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/alekseinovikov/rust-crossterm-snake 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be685b05707f5b517186fc82799e2b81268862a7ca7e800008ac3edeaf79088f
[INFO] running `Command { std: "docker" "start" "-a" "be685b05707f5b517186fc82799e2b81268862a7ca7e800008ac3edeaf79088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be685b05707f5b517186fc82799e2b81268862a7ca7e800008ac3edeaf79088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be685b05707f5b517186fc82799e2b81268862a7ca7e800008ac3edeaf79088f", kill_on_drop: false }`
[INFO] [stdout] be685b05707f5b517186fc82799e2b81268862a7ca7e800008ac3edeaf79088f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cae10b881e532577add1afad70984b48243b6a6af734933036c297a5b97f8b18
[INFO] running `Command { std: "docker" "start" "-a" "cae10b881e532577add1afad70984b48243b6a6af734933036c297a5b97f8b18", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]     Checking rust-crossterm-snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Color`, `ExecutableCommand`, `QueueableCommand`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `style`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...r, event, ExecutableCommand, execute, QueueableCommand, Result, style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, style, t...
[INFO] [stdout]   |       ^^^^^  ^^^^^^^^^^^^^^^^^           ^^^^^^^^^^^^^^^^                  ^^^^^         ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossterm::style::Stylize`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crossterm::style::Stylize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Color`, `ExecutableCommand`, `QueueableCommand`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `style`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...r, event, ExecutableCommand, execute, QueueableCommand, Result, style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, style, t...
[INFO] [stdout]   |       ^^^^^  ^^^^^^^^^^^^^^^^^           ^^^^^^^^^^^^^^^^                  ^^^^^         ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossterm::style::Stylize`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crossterm::style::Stylize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdout, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdout, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "cae10b881e532577add1afad70984b48243b6a6af734933036c297a5b97f8b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae10b881e532577add1afad70984b48243b6a6af734933036c297a5b97f8b18", kill_on_drop: false }`
[INFO] [stdout] cae10b881e532577add1afad70984b48243b6a6af734933036c297a5b97f8b18