[INFO] fetching crate err-derive 0.2.1...
[INFO] checking err-derive-0.2.1 against beta-2019-10-27 for pr-65897
[INFO] extracting crate err-derive 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate err-derive 0.2.1 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate err-derive 0.2.1
[INFO] finished tweaking crates.io crate err-derive 0.2.1
[INFO] tweaked toml for crates.io crate err-derive 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate err-derive 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=allow" "-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" "+beta-2019-10-27" "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] f2c541493b4e677e7dfffdd03eda9d1db91234427ec6bb879a4de74b47872144
[INFO] running `"docker" "start" "-a" "f2c541493b4e677e7dfffdd03eda9d1db91234427ec6bb879a4de74b47872144"`
[INFO] [stderr]     Checking bytecount v0.4.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking proc-macro2 v1.0.4
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.0
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking syn v1.0.5
[INFO] [stderr]     Checking proc-macro-error v0.2.6
[INFO] [stderr]     Checking cargo_metadata v0.6.4
[INFO] [stderr]     Checking skeptic v0.13.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling err-derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.22s
[INFO] running `"docker" "inspect" "f2c541493b4e677e7dfffdd03eda9d1db91234427ec6bb879a4de74b47872144"`
[INFO] running `"docker" "rm" "-f" "f2c541493b4e677e7dfffdd03eda9d1db91234427ec6bb879a4de74b47872144"`
[INFO] [stdout] f2c541493b4e677e7dfffdd03eda9d1db91234427ec6bb879a4de74b47872144