[INFO] fetching crate libtetris 0.0.6...
[INFO] checking libtetris-0.0.6 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate libtetris 0.0.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate libtetris 0.0.6 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libtetris 0.0.6
[INFO] finished tweaking crates.io crate libtetris 0.0.6
[INFO] tweaked toml for crates.io crate libtetris 0.0.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate libtetris 0.0.6 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a939e2c6fa5900c04f0f35faefa55827a37d8e8b86516e405b070c1d520ba0f2
[INFO] running `Command { std: "docker" "start" "-a" "a939e2c6fa5900c04f0f35faefa55827a37d8e8b86516e405b070c1d520ba0f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a939e2c6fa5900c04f0f35faefa55827a37d8e8b86516e405b070c1d520ba0f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a939e2c6fa5900c04f0f35faefa55827a37d8e8b86516e405b070c1d520ba0f2", kill_on_drop: false }`
[INFO] [stdout] a939e2c6fa5900c04f0f35faefa55827a37d8e8b86516e405b070c1d520ba0f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 810d6e75373baac2be279a9a29348e28e9dfb35d8f4dbf84b9ab7cca3288158b
[INFO] running `Command { std: "docker" "start" "-a" "810d6e75373baac2be279a9a29348e28e9dfb35d8f4dbf84b9ab7cca3288158b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking libtetris v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `StaticRand` is never constructed
[INFO] [stdout]  --> src/game.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct StaticRand;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: struct `StaticRand` is never constructed
[INFO] [stdout]  --> src/game.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct StaticRand;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `Command { std: "docker" "inspect" "810d6e75373baac2be279a9a29348e28e9dfb35d8f4dbf84b9ab7cca3288158b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "810d6e75373baac2be279a9a29348e28e9dfb35d8f4dbf84b9ab7cca3288158b", kill_on_drop: false }`
[INFO] [stdout] 810d6e75373baac2be279a9a29348e28e9dfb35d8f4dbf84b9ab7cca3288158b