[INFO] fetching crate unsafety 0.1.0...
[INFO] checking unsafety-0.1.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate unsafety 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate unsafety 0.1.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsafety 0.1.0
[INFO] finished tweaking crates.io crate unsafety 0.1.0
[INFO] tweaked toml for crates.io crate unsafety 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fd51a787c4dbd8b0c97c115b22c1685eb3cc61213ce5fe95a8a487ec8478b31
[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" "0fd51a787c4dbd8b0c97c115b22c1685eb3cc61213ce5fe95a8a487ec8478b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fd51a787c4dbd8b0c97c115b22c1685eb3cc61213ce5fe95a8a487ec8478b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd51a787c4dbd8b0c97c115b22c1685eb3cc61213ce5fe95a8a487ec8478b31", kill_on_drop: false }`
[INFO] [stdout] 0fd51a787c4dbd8b0c97c115b22c1685eb3cc61213ce5fe95a8a487ec8478b31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 806c3928ebb3fa3cd4d60fc5975b7a0b62098df87ffe10b29f586fffadbcb06e
[INFO] running `Command { std: "docker" "start" "-a" "806c3928ebb3fa3cd4d60fc5975b7a0b62098df87ffe10b29f586fffadbcb06e", kill_on_drop: false }`
[INFO] [stderr]     Checking unsafety v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "806c3928ebb3fa3cd4d60fc5975b7a0b62098df87ffe10b29f586fffadbcb06e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "806c3928ebb3fa3cd4d60fc5975b7a0b62098df87ffe10b29f586fffadbcb06e", kill_on_drop: false }`
[INFO] [stdout] 806c3928ebb3fa3cd4d60fc5975b7a0b62098df87ffe10b29f586fffadbcb06e