[INFO] fetching crate btrfs-diskformat 0.1.0...
[INFO] checking btrfs-diskformat-0.1.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate btrfs-diskformat 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate btrfs-diskformat 0.1.0 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 btrfs-diskformat 0.1.0
[INFO] finished tweaking crates.io crate btrfs-diskformat 0.1.0
[INFO] tweaked toml for crates.io crate btrfs-diskformat 0.1.0 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zerocopy-derive v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d56084d38e5c111f6614fed727f4c8d42ac3aa8bd8dca74586edecde86db0216
[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" "d56084d38e5c111f6614fed727f4c8d42ac3aa8bd8dca74586edecde86db0216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d56084d38e5c111f6614fed727f4c8d42ac3aa8bd8dca74586edecde86db0216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56084d38e5c111f6614fed727f4c8d42ac3aa8bd8dca74586edecde86db0216", kill_on_drop: false }`
[INFO] [stdout] d56084d38e5c111f6614fed727f4c8d42ac3aa8bd8dca74586edecde86db0216
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] c3d244d6c7566ffee69fa91b693c195c8f9e4453058412261a1c1b4509cab8cd
[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" "c3d244d6c7566ffee69fa91b693c195c8f9e4453058412261a1c1b4509cab8cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.2.1
[INFO] [stderr]     Checking enumflags2 v0.6.4
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking btrfs-diskformat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.22s
[INFO] running `Command { std: "docker" "inspect" "c3d244d6c7566ffee69fa91b693c195c8f9e4453058412261a1c1b4509cab8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d244d6c7566ffee69fa91b693c195c8f9e4453058412261a1c1b4509cab8cd", kill_on_drop: false }`
[INFO] [stdout] c3d244d6c7566ffee69fa91b693c195c8f9e4453058412261a1c1b4509cab8cd