[INFO] cloning repository https://github.com/konraku/num_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/konraku/num_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkonraku%2Fnum_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkonraku%2Fnum_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e954b37367c1a54fbb36c55056d6e2f68775cc4a
[INFO] checking konraku/num_game against master#0f353363965ebf05e0757f7679c800b39c51a07e for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkonraku%2Fnum_game" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/konraku/num_game
[INFO] finished tweaking git repo https://github.com/konraku/num_game
[INFO] tweaked toml for git repo https://github.com/konraku/num_game written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/konraku/num_game on toolchain 0f353363965ebf05e0757f7679c800b39c51a07e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f353363965ebf05e0757f7679c800b39c51a07e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/konraku/num_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" "+0f353363965ebf05e0757f7679c800b39c51a07e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+0f353363965ebf05e0757f7679c800b39c51a07e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c85064e3b7a089b39667718d7771cea1f0329b9a4d5ae146b84380b8aaf929c0
[INFO] running `Command { std: "docker" "start" "-a" "c85064e3b7a089b39667718d7771cea1f0329b9a4d5ae146b84380b8aaf929c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c85064e3b7a089b39667718d7771cea1f0329b9a4d5ae146b84380b8aaf929c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c85064e3b7a089b39667718d7771cea1f0329b9a4d5ae146b84380b8aaf929c0", kill_on_drop: false }`
[INFO] [stdout] c85064e3b7a089b39667718d7771cea1f0329b9a4d5ae146b84380b8aaf929c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+0f353363965ebf05e0757f7679c800b39c51a07e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3581c5b18d11cfb6672a2971f34c801030b3ff55e68d68f5390922957eb07eb7
[INFO] running `Command { std: "docker" "start" "-a" "3581c5b18d11cfb6672a2971f34c801030b3ff55e68d68f5390922957eb07eb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "3581c5b18d11cfb6672a2971f34c801030b3ff55e68d68f5390922957eb07eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3581c5b18d11cfb6672a2971f34c801030b3ff55e68d68f5390922957eb07eb7", kill_on_drop: false }`
[INFO] [stdout] 3581c5b18d11cfb6672a2971f34c801030b3ff55e68d68f5390922957eb07eb7