[INFO] cloning repository https://github.com/nanchengjiumeng/mastering-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nanchengjiumeng/mastering-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanchengjiumeng%2Fmastering-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanchengjiumeng%2Fmastering-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f12110442490d124fde2f6cf59637f10519c5c93
[INFO] checking nanchengjiumeng/mastering-rust against 1.95.0-beta.7 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanchengjiumeng%2Fmastering-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nanchengjiumeng/mastering-rust
[INFO] finished tweaking git repo https://github.com/nanchengjiumeng/mastering-rust
[INFO] tweaked toml for git repo https://github.com/nanchengjiumeng/mastering-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nanchengjiumeng/mastering-rust on toolchain 1.95.0-beta.7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nanchengjiumeng/mastering-rust 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" "+1.95.0-beta.7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b498a9b5dd9c1115c4da6fc6d28c80810e020067a656e990431ddd355e6b527
[INFO] running `Command { std: "docker" "start" "-a" "4b498a9b5dd9c1115c4da6fc6d28c80810e020067a656e990431ddd355e6b527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b498a9b5dd9c1115c4da6fc6d28c80810e020067a656e990431ddd355e6b527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b498a9b5dd9c1115c4da6fc6d28c80810e020067a656e990431ddd355e6b527", kill_on_drop: false }`
[INFO] [stdout] 4b498a9b5dd9c1115c4da6fc6d28c80810e020067a656e990431ddd355e6b527
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff1887bec684259a162302b29e2dae5c7e234ccf783ea2c6b43bdf6caf269785
[INFO] running `Command { std: "docker" "start" "-a" "ff1887bec684259a162302b29e2dae5c7e234ccf783ea2c6b43bdf6caf269785", kill_on_drop: false }`
[INFO] [stderr]     Checking windows v0.43.0
[INFO] [stderr]     Checking first-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "ff1887bec684259a162302b29e2dae5c7e234ccf783ea2c6b43bdf6caf269785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1887bec684259a162302b29e2dae5c7e234ccf783ea2c6b43bdf6caf269785", kill_on_drop: false }`
[INFO] [stdout] ff1887bec684259a162302b29e2dae5c7e234ccf783ea2c6b43bdf6caf269785