[INFO] cloning repository https://github.com/springercass/rust-documentation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/springercass/rust-documentation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringercass%2Frust-documentation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringercass%2Frust-documentation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7042787101d6214530b9d979e41a7a3881353fd
[INFO] checking springercass/rust-documentation against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspringercass%2Frust-documentation" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/springercass/rust-documentation on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/springercass/rust-documentation
[INFO] finished tweaking git repo https://github.com/springercass/rust-documentation
[INFO] tweaked toml for git repo https://github.com/springercass/rust-documentation written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/springercass/rust-documentation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9c5a0a4ec1990b883d51fd66c1b8c2e371ddd1dcf096946ed36e2e6ddee4bd7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c9c5a0a4ec1990b883d51fd66c1b8c2e371ddd1dcf096946ed36e2e6ddee4bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c5a0a4ec1990b883d51fd66c1b8c2e371ddd1dcf096946ed36e2e6ddee4bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c5a0a4ec1990b883d51fd66c1b8c2e371ddd1dcf096946ed36e2e6ddee4bd7", kill_on_drop: false }`
[INFO] [stdout] c9c5a0a4ec1990b883d51fd66c1b8c2e371ddd1dcf096946ed36e2e6ddee4bd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cba3a1d4af456cbf4cf83fd36c14fce913737045d1653eb7c0fc50ee7cc35ab7
[INFO] running `Command { std: "docker" "start" "-a" "cba3a1d4af456cbf4cf83fd36c14fce913737045d1653eb7c0fc50ee7cc35ab7", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "cba3a1d4af456cbf4cf83fd36c14fce913737045d1653eb7c0fc50ee7cc35ab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba3a1d4af456cbf4cf83fd36c14fce913737045d1653eb7c0fc50ee7cc35ab7", kill_on_drop: false }`
[INFO] [stdout] cba3a1d4af456cbf4cf83fd36c14fce913737045d1653eb7c0fc50ee7cc35ab7