[INFO] fetching crate gear_combos 1.0.4...
[INFO] checking gear_combos-1.0.4 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate gear_combos 1.0.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gear_combos 1.0.4 on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gear_combos 1.0.4
[INFO] finished tweaking crates.io crate gear_combos 1.0.4
[INFO] tweaked toml for crates.io crate gear_combos 1.0.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate gear_combos 1.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879c5b4f5a0197e70fc92cda553cb35552913198fec4d6456cb3d99ab045dad6
[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" "879c5b4f5a0197e70fc92cda553cb35552913198fec4d6456cb3d99ab045dad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879c5b4f5a0197e70fc92cda553cb35552913198fec4d6456cb3d99ab045dad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879c5b4f5a0197e70fc92cda553cb35552913198fec4d6456cb3d99ab045dad6", kill_on_drop: false }`
[INFO] [stdout] 879c5b4f5a0197e70fc92cda553cb35552913198fec4d6456cb3d99ab045dad6
[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=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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8cd2e149510d492278a596636263e0e60868a666f21b13540bf5e4a3768e925
[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" "d8cd2e149510d492278a596636263e0e60868a666f21b13540bf5e4a3768e925", kill_on_drop: false }`
[INFO] [stderr]     Checking gear_combos v1.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "d8cd2e149510d492278a596636263e0e60868a666f21b13540bf5e4a3768e925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8cd2e149510d492278a596636263e0e60868a666f21b13540bf5e4a3768e925", kill_on_drop: false }`
[INFO] [stdout] d8cd2e149510d492278a596636263e0e60868a666f21b13540bf5e4a3768e925