[INFO] cloning repository https://github.com/bingli224/rust_test_thrd_mutex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bingli224/rust_test_thrd_mutex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbingli224%2Frust_test_thrd_mutex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbingli224%2Frust_test_thrd_mutex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a91c5820af426871ea424b0e92f70eb39f3b3c2f
[INFO] checking bingli224/rust_test_thrd_mutex against try#163937523761cc0def32f1ba9ed63fdf65ad3478 for pr-156749
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbingli224%2Frust_test_thrd_mutex" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bingli224/rust_test_thrd_mutex
[INFO] finished tweaking git repo https://github.com/bingli224/rust_test_thrd_mutex
[INFO] tweaked toml for git repo https://github.com/bingli224/rust_test_thrd_mutex written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bingli224/rust_test_thrd_mutex on toolchain 163937523761cc0def32f1ba9ed63fdf65ad3478
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bingli224/rust_test_thrd_mutex 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" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630
[INFO] running `Command { std: "docker" "start" "561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630", 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" "561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630", 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" "561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking pulling_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `io::Write`, `io::stdout`, `thread::sleep`, and `time::Duration`
[INFO] [stdout]   --> src/test.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             thread::sleep,
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout] 11 |             time::Duration,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |             io::Write,
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 14 |             io::stdout,
[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: `rand::Rng`
[INFO] [stdout]   --> src/test.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use rand::Rng;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630", kill_on_drop: false }`
[INFO] [stdout] 561a03f30aa486366afca2e696a1430554227e69d5bb8aead6a8489863ea0630
