[INFO] fetching crate carol-test 1.1.1...
[INFO] checking carol-test-1.1.1 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate carol-test 1.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate carol-test 1.1.1 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carol-test 1.1.1
[INFO] finished tweaking crates.io crate carol-test 1.1.1
[INFO] tweaked toml for crates.io crate carol-test 1.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate carol-test 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e13e779858a486ea67c0a02bb27cd125340f3b7ef8bb34ce4623cbab2da2a57b
[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" "e13e779858a486ea67c0a02bb27cd125340f3b7ef8bb34ce4623cbab2da2a57b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e13e779858a486ea67c0a02bb27cd125340f3b7ef8bb34ce4623cbab2da2a57b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13e779858a486ea67c0a02bb27cd125340f3b7ef8bb34ce4623cbab2da2a57b", kill_on_drop: false }`
[INFO] [stdout] e13e779858a486ea67c0a02bb27cd125340f3b7ef8bb34ce4623cbab2da2a57b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "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] 1ea7eb0f5e6c278a5d4f38b0863109dc771212e05c38fa146a41f2ea8ac637a2
[INFO] running `Command { std: "docker" "start" "-a" "1ea7eb0f5e6c278a5d4f38b0863109dc771212e05c38fa146a41f2ea8ac637a2", kill_on_drop: false }`
[INFO] [stderr]     Checking carol-test v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "1ea7eb0f5e6c278a5d4f38b0863109dc771212e05c38fa146a41f2ea8ac637a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ea7eb0f5e6c278a5d4f38b0863109dc771212e05c38fa146a41f2ea8ac637a2", kill_on_drop: false }`
[INFO] [stdout] 1ea7eb0f5e6c278a5d4f38b0863109dc771212e05c38fa146a41f2ea8ac637a2