[INFO] updating cached repository https://github.com/benbrunton/rust_cards
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78c66dafee8e50e21ae42cf5f1c5282db805dfd1
[INFO] checking benbrunton/rust_cards against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbrunton%2Frust_cards" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benbrunton/rust_cards 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 git repo https://github.com/benbrunton/rust_cards
[INFO] finished tweaking git repo https://github.com/benbrunton/rust_cards
[INFO] tweaked toml for git repo https://github.com/benbrunton/rust_cards written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/benbrunton/rust_cards 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 6a7f0aee64f274cba98a28dbf763fd1892b2bd38bec08040a63bdf47403e0f87
[INFO] running `"docker" "start" "-a" "6a7f0aee64f274cba98a28dbf763fd1892b2bd38bec08040a63bdf47403e0f87"`
[INFO] [stderr]     Checking libc v0.2.8
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]     Checking regex-syntax v0.3.0
[INFO] [stderr]     Checking colored v1.1.0
[INFO] [stderr]     Checking memchr v0.1.10
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking aho-corasick v0.5.1
[INFO] [stderr]     Checking regex v0.1.58
[INFO] [stderr]     Checking solitaire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.23s
[INFO] running `"docker" "inspect" "6a7f0aee64f274cba98a28dbf763fd1892b2bd38bec08040a63bdf47403e0f87"`
[INFO] running `"docker" "rm" "-f" "6a7f0aee64f274cba98a28dbf763fd1892b2bd38bec08040a63bdf47403e0f87"`
[INFO] [stdout] 6a7f0aee64f274cba98a28dbf763fd1892b2bd38bec08040a63bdf47403e0f87