[INFO] fetching crate cargo-xbuild 0.5.20...
[INFO] checking cargo-xbuild-0.5.20 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate cargo-xbuild 0.5.20 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-xbuild 0.5.20 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cargo-xbuild 0.5.20
[INFO] finished tweaking crates.io crate cargo-xbuild 0.5.20
[INFO] tweaked toml for crates.io crate cargo-xbuild 0.5.20 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cargo-xbuild 0.5.20 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ecd97114faf5fc9085b772b384e2c4b4fad09c16a56f664efc0fb0b8fbbf4978
[INFO] running `"docker" "start" "-a" "ecd97114faf5fc9085b772b384e2c4b4fad09c16a56f664efc0fb0b8fbbf4978"`
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]    Compiling cargo-xbuild v0.5.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking semver v0.1.20
[INFO] [stderr]     Checking error-chain v0.7.2
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]     Checking rustc_version v0.1.7
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking cargo_metadata v0.5.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.42s
[INFO] running `"docker" "inspect" "ecd97114faf5fc9085b772b384e2c4b4fad09c16a56f664efc0fb0b8fbbf4978"`
[INFO] running `"docker" "rm" "-f" "ecd97114faf5fc9085b772b384e2c4b4fad09c16a56f664efc0fb0b8fbbf4978"`
[INFO] [stdout] ecd97114faf5fc9085b772b384e2c4b4fad09c16a56f664efc0fb0b8fbbf4978