[INFO] fetching crate cargo_issue_6504 2.2.2+1...
[INFO] checking cargo_issue_6504-2.2.2+1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate cargo_issue_6504 2.2.2+1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo_issue_6504 2.2.2+1 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 cargo_issue_6504 2.2.2+1
[INFO] finished tweaking crates.io crate cargo_issue_6504 2.2.2+1
[INFO] tweaked toml for crates.io crate cargo_issue_6504 2.2.2+1 written to /workspace/builds/worker-7/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 6903e0262ce707b88fdacdcf94b6976e7629d163937c7ea0fcb84429d2f87795
[INFO] running `Command { std: "docker" "start" "-a" "6903e0262ce707b88fdacdcf94b6976e7629d163937c7ea0fcb84429d2f87795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6903e0262ce707b88fdacdcf94b6976e7629d163937c7ea0fcb84429d2f87795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6903e0262ce707b88fdacdcf94b6976e7629d163937c7ea0fcb84429d2f87795", kill_on_drop: false }`
[INFO] [stdout] 6903e0262ce707b88fdacdcf94b6976e7629d163937c7ea0fcb84429d2f87795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-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" "RUSTUP_TOOLCHAIN=45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "-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" "/tmp/crater-runner-fifo/jobserver-crater-fwd" "/opt/rustwide/cargo-home/bin/cargo" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 179aeda6d5bf0e8d67d3d589c351921c1be3ae87335e5d8286be5f9e7a97d4a7
[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" "179aeda6d5bf0e8d67d3d589c351921c1be3ae87335e5d8286be5f9e7a97d4a7", kill_on_drop: false }`
[INFO] [stderr]     Checking cargo_issue_6504 v2.2.2+1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "179aeda6d5bf0e8d67d3d589c351921c1be3ae87335e5d8286be5f9e7a97d4a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179aeda6d5bf0e8d67d3d589c351921c1be3ae87335e5d8286be5f9e7a97d4a7", kill_on_drop: false }`
[INFO] [stdout] 179aeda6d5bf0e8d67d3d589c351921c1be3ae87335e5d8286be5f9e7a97d4a7