[INFO] fetching crate proc-macro-error-attr 0.3.4...
[INFO] checking proc-macro-error-attr-0.3.4 against beta-2019-10-27 for pr-65897
[INFO] extracting crate proc-macro-error-attr 0.3.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate proc-macro-error-attr 0.3.4 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 proc-macro-error-attr 0.3.4
[INFO] finished tweaking crates.io crate proc-macro-error-attr 0.3.4
[INFO] tweaked toml for crates.io crate proc-macro-error-attr 0.3.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 09223ce39d59211225d495f8650a31e37ef31c28b33b28e6285bfc30c46ccf05
[INFO] running `"docker" "start" "-a" "09223ce39d59211225d495f8650a31e37ef31c28b33b28e6285bfc30c46ccf05"`
[INFO] [stderr]     Checking syn v1.0.7
[INFO] [stderr]    Compiling rustversion v1.0.0
[INFO] [stderr]     Checking serde v1.0.102
[INFO] [stderr]    Compiling proc-macro-error-attr v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking toml v0.5.4
[INFO] [stderr]     Checking trybuild v1.0.17
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.83s
[INFO] running `"docker" "inspect" "09223ce39d59211225d495f8650a31e37ef31c28b33b28e6285bfc30c46ccf05"`
[INFO] running `"docker" "rm" "-f" "09223ce39d59211225d495f8650a31e37ef31c28b33b28e6285bfc30c46ccf05"`
[INFO] [stdout] 09223ce39d59211225d495f8650a31e37ef31c28b33b28e6285bfc30c46ccf05