[INFO] fetching crate device 0.0.0...
[INFO] checking device-0.0.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate device 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate device 0.0.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate device 0.0.0
[INFO] finished tweaking crates.io crate device 0.0.0
[INFO] tweaked toml for crates.io crate device 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate device 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] 16510e25ae7b3f92ee4c838dcfa4e8cdfe27d4188492594c7cc527fdc9863c03
[INFO] running `Command { std: "docker" "start" "-a" "16510e25ae7b3f92ee4c838dcfa4e8cdfe27d4188492594c7cc527fdc9863c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16510e25ae7b3f92ee4c838dcfa4e8cdfe27d4188492594c7cc527fdc9863c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16510e25ae7b3f92ee4c838dcfa4e8cdfe27d4188492594c7cc527fdc9863c03", kill_on_drop: false }`
[INFO] [stdout] 16510e25ae7b3f92ee4c838dcfa4e8cdfe27d4188492594c7cc527fdc9863c03
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] 3b0a7dd60025656b213a479e603171be42cb18e552075c5feca670a6df316c6a
[INFO] running `Command { std: "docker" "start" "-a" "3b0a7dd60025656b213a479e603171be42cb18e552075c5feca670a6df316c6a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking device v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "3b0a7dd60025656b213a479e603171be42cb18e552075c5feca670a6df316c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b0a7dd60025656b213a479e603171be42cb18e552075c5feca670a6df316c6a", kill_on_drop: false }`
[INFO] [stdout] 3b0a7dd60025656b213a479e603171be42cb18e552075c5feca670a6df316c6a