[INFO] fetching crate extc 0.0.0-RESERVE...
[INFO] checking extc-0.0.0-RESERVE against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate extc 0.0.0-RESERVE into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate extc 0.0.0-RESERVE on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 492825590d9e75d74eaa16be8ff854f951f34772c072434dc90d397f378fce79
[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" "492825590d9e75d74eaa16be8ff854f951f34772c072434dc90d397f378fce79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "492825590d9e75d74eaa16be8ff854f951f34772c072434dc90d397f378fce79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492825590d9e75d74eaa16be8ff854f951f34772c072434dc90d397f378fce79", kill_on_drop: false }`
[INFO] [stdout] 492825590d9e75d74eaa16be8ff854f951f34772c072434dc90d397f378fce79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9a0c2ff47e9b24e5d84afb235d58c024e2206d40cee5f73d6661b594e10380d
[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" "f9a0c2ff47e9b24e5d84afb235d58c024e2206d40cee5f73d6661b594e10380d", kill_on_drop: false }`
[INFO] [stderr]     Checking extc v0.0.0-RESERVE (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "f9a0c2ff47e9b24e5d84afb235d58c024e2206d40cee5f73d6661b594e10380d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a0c2ff47e9b24e5d84afb235d58c024e2206d40cee5f73d6661b594e10380d", kill_on_drop: false }`
[INFO] [stdout] f9a0c2ff47e9b24e5d84afb235d58c024e2206d40cee5f73d6661b594e10380d