[INFO] fetching crate rstack-self 0.3.0...
[INFO] checking rstack-self-0.3.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate rstack-self 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rstack-self 0.3.0 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 rstack-self 0.3.0
[INFO] finished tweaking crates.io crate rstack-self 0.3.0
[INFO] tweaked toml for crates.io crate rstack-self 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate rstack-self 0.3.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] b9f9513270ae904e6cfc517e78584ae16aa810aebaef0cd9b162d76e6bf2b58e
[INFO] running `"docker" "start" "-a" "b9f9513270ae904e6cfc517e78584ae16aa810aebaef0cd9b162d76e6bf2b58e"`
[INFO] [stderr]    Compiling unwind v0.3.0
[INFO] [stderr]     Checking foreign-types-shared v0.3.0
[INFO] [stderr]    Compiling unwind-sys v0.1.1
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling foreign-types-macros v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking foreign-types v0.5.0
[INFO] [stderr]     Checking rstack v0.3.0
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking rstack-self v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.77s
[INFO] running `"docker" "inspect" "b9f9513270ae904e6cfc517e78584ae16aa810aebaef0cd9b162d76e6bf2b58e"`
[INFO] running `"docker" "rm" "-f" "b9f9513270ae904e6cfc517e78584ae16aa810aebaef0cd9b162d76e6bf2b58e"`
[INFO] [stdout] b9f9513270ae904e6cfc517e78584ae16aa810aebaef0cd9b162d76e6bf2b58e