[INFO] cloning repository https://github.com/j-artur/rust-connect-4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j-artur/rust-connect-4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-artur%2Frust-connect-4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-artur%2Frust-connect-4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0005b22097395227e4f11e9625e1a74f4527bff3
[INFO] checking j-artur/rust-connect-4 against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-artur%2Frust-connect-4" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j-artur/rust-connect-4 on toolchain b44e14f762fd4062faeba97f8f2bc470298ec1ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j-artur/rust-connect-4
[INFO] finished tweaking git repo https://github.com/j-artur/rust-connect-4
[INFO] tweaked toml for git repo https://github.com/j-artur/rust-connect-4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/j-artur/rust-connect-4 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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded multizip v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e58bd409f67b06b6822a991b6a0abd92384cc8c04f94dcf7b5e6d6e545c7ccd8
[INFO] running `Command { std: "docker" "start" "-a" "e58bd409f67b06b6822a991b6a0abd92384cc8c04f94dcf7b5e6d6e545c7ccd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e58bd409f67b06b6822a991b6a0abd92384cc8c04f94dcf7b5e6d6e545c7ccd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e58bd409f67b06b6822a991b6a0abd92384cc8c04f94dcf7b5e6d6e545c7ccd8", kill_on_drop: false }`
[INFO] [stdout] e58bd409f67b06b6822a991b6a0abd92384cc8c04f94dcf7b5e6d6e545c7ccd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 874ac15351d71f6ec99f4ec752a943d982ae565dd3b1675c5800e354a4448b8e
[INFO] running `Command { std: "docker" "start" "-a" "874ac15351d71f6ec99f4ec752a943d982ae565dd3b1675c5800e354a4448b8e", kill_on_drop: false }`
[INFO] [stderr]     Checking multizip v0.1.0
[INFO] [stderr]     Checking connect-4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "874ac15351d71f6ec99f4ec752a943d982ae565dd3b1675c5800e354a4448b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "874ac15351d71f6ec99f4ec752a943d982ae565dd3b1675c5800e354a4448b8e", kill_on_drop: false }`
[INFO] [stdout] 874ac15351d71f6ec99f4ec752a943d982ae565dd3b1675c5800e354a4448b8e