[INFO] fetching crate dimension 0.0.0...
[INFO] checking dimension-0.0.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate dimension 0.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dimension 0.0.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dimension 0.0.0
[INFO] finished tweaking crates.io crate dimension 0.0.0
[INFO] tweaked toml for crates.io crate dimension 0.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate dimension 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08932ce8ea5627b1f9e7f147d13e755bf30b50ed06647780a70e128cbdcc7c6e
[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" "08932ce8ea5627b1f9e7f147d13e755bf30b50ed06647780a70e128cbdcc7c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08932ce8ea5627b1f9e7f147d13e755bf30b50ed06647780a70e128cbdcc7c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08932ce8ea5627b1f9e7f147d13e755bf30b50ed06647780a70e128cbdcc7c6e", kill_on_drop: false }`
[INFO] [stdout] 08932ce8ea5627b1f9e7f147d13e755bf30b50ed06647780a70e128cbdcc7c6e
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 0c8945c7a06b78d9740cf393b23a1e074bb69c4d78cf6036443d056e2c2be737
[INFO] running `Command { std: "docker" "start" "-a" "0c8945c7a06b78d9740cf393b23a1e074bb69c4d78cf6036443d056e2c2be737", kill_on_drop: false }`
[INFO] [stderr]     Checking dimension v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "0c8945c7a06b78d9740cf393b23a1e074bb69c4d78cf6036443d056e2c2be737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c8945c7a06b78d9740cf393b23a1e074bb69c4d78cf6036443d056e2c2be737", kill_on_drop: false }`
[INFO] [stdout] 0c8945c7a06b78d9740cf393b23a1e074bb69c4d78cf6036443d056e2c2be737