[INFO] fetching crate extc 0.0.0-RESERVE...
[INFO] checking extc-0.0.0-RESERVE against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate extc 0.0.0-RESERVE into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate extc 0.0.0-RESERVE on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extc 0.0.0-RESERVE
[INFO] finished tweaking crates.io crate extc 0.0.0-RESERVE
[INFO] tweaked toml for crates.io crate extc 0.0.0-RESERVE written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate extc 0.0.0-RESERVE already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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] 6973ef9a999c563c8cb81b88b6d832d03d05548558bdd3e2adfaa74d84b9e717
[INFO] running `Command { std: "docker" "start" "-a" "6973ef9a999c563c8cb81b88b6d832d03d05548558bdd3e2adfaa74d84b9e717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6973ef9a999c563c8cb81b88b6d832d03d05548558bdd3e2adfaa74d84b9e717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6973ef9a999c563c8cb81b88b6d832d03d05548558bdd3e2adfaa74d84b9e717", kill_on_drop: false }`
[INFO] [stdout] 6973ef9a999c563c8cb81b88b6d832d03d05548558bdd3e2adfaa74d84b9e717
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8513337fef7d309949ea6c7bb1ba01d81c8eb2ee332e051b450ffe7a4b133c92
[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" "8513337fef7d309949ea6c7bb1ba01d81c8eb2ee332e051b450ffe7a4b133c92", kill_on_drop: false }`
[INFO] [stderr]     Checking extc v0.0.0-RESERVE (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "8513337fef7d309949ea6c7bb1ba01d81c8eb2ee332e051b450ffe7a4b133c92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8513337fef7d309949ea6c7bb1ba01d81c8eb2ee332e051b450ffe7a4b133c92", kill_on_drop: false }`
[INFO] [stdout] 8513337fef7d309949ea6c7bb1ba01d81c8eb2ee332e051b450ffe7a4b133c92