[INFO] fetching crate gain-listener 0.3.1...
[INFO] checking gain-listener-0.3.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate gain-listener 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gain-listener 0.3.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gain-listener 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate gain-listener 0.3.1
[INFO] tweaked toml for crates.io crate gain-listener 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate gain-listener 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", 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] a024dd934e902893d6ab028b8c5a08080f45794c0631161a9e86c278258f85e9
[INFO] running `Command { std: "docker" "start" "-a" "a024dd934e902893d6ab028b8c5a08080f45794c0631161a9e86c278258f85e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a024dd934e902893d6ab028b8c5a08080f45794c0631161a9e86c278258f85e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a024dd934e902893d6ab028b8c5a08080f45794c0631161a9e86c278258f85e9", kill_on_drop: false }`
[INFO] [stdout] a024dd934e902893d6ab028b8c5a08080f45794c0631161a9e86c278258f85e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f98a95ae455fe8474d80f229c497c00a276d1de138a76fc921fb2067cb58edd
[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" "5f98a95ae455fe8474d80f229c497c00a276d1de138a76fc921fb2067cb58edd", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking flatbuffers v2.0.0
[INFO] [stderr]     Checking gain v0.4.1
[INFO] [stderr]     Checking gain-listener v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.81s
[INFO] running `Command { std: "docker" "inspect" "5f98a95ae455fe8474d80f229c497c00a276d1de138a76fc921fb2067cb58edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f98a95ae455fe8474d80f229c497c00a276d1de138a76fc921fb2067cb58edd", kill_on_drop: false }`
[INFO] [stdout] 5f98a95ae455fe8474d80f229c497c00a276d1de138a76fc921fb2067cb58edd
