[INFO] fetching crate smptera-format-identifiers-rust 0.2.0...
[INFO] checking smptera-format-identifiers-rust-0.2.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate smptera-format-identifiers-rust 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate smptera-format-identifiers-rust 0.2.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smptera-format-identifiers-rust 0.2.0
[INFO] finished tweaking crates.io crate smptera-format-identifiers-rust 0.2.0
[INFO] tweaked toml for crates.io crate smptera-format-identifiers-rust 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded four-cc v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbde33d03c2db9f27157fdfd47df388fab3086c7d81c86c36894558dd610f81e
[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" "fbde33d03c2db9f27157fdfd47df388fab3086c7d81c86c36894558dd610f81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbde33d03c2db9f27157fdfd47df388fab3086c7d81c86c36894558dd610f81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbde33d03c2db9f27157fdfd47df388fab3086c7d81c86c36894558dd610f81e", kill_on_drop: false }`
[INFO] [stdout] fbde33d03c2db9f27157fdfd47df388fab3086c7d81c86c36894558dd610f81e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 5b84bae997f7974a86445657a3a431863c8fd0b5b61c9e750b24d9715470166a
[INFO] running `Command { std: "docker" "start" "-a" "5b84bae997f7974a86445657a3a431863c8fd0b5b61c9e750b24d9715470166a", kill_on_drop: false }`
[INFO] [stderr]     Checking four-cc v0.1.0
[INFO] [stderr]     Checking smptera-format-identifiers-rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "5b84bae997f7974a86445657a3a431863c8fd0b5b61c9e750b24d9715470166a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b84bae997f7974a86445657a3a431863c8fd0b5b61c9e750b24d9715470166a", kill_on_drop: false }`
[INFO] [stdout] 5b84bae997f7974a86445657a3a431863c8fd0b5b61c9e750b24d9715470166a