[INFO] fetching crate ring-channel 0.7.0...
[INFO] checking ring-channel-0.7.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate ring-channel 0.7.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ring-channel 0.7.0 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 ring-channel 0.7.0
[INFO] finished tweaking crates.io crate ring-channel 0.7.0
[INFO] tweaked toml for crates.io crate ring-channel 0.7.0 written to /workspace/builds/worker-9/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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 4ceb2438ede885b3e35932f88c19dee655cf10c896bdd57b7a6042d2d9e2f9d6
[INFO] running `"docker" "start" "-a" "4ceb2438ede885b3e35932f88c19dee655cf10c896bdd57b7a6042d2d9e2f9d6"`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]    Compiling mockall_derive v0.5.1
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling proptest-derive v0.1.2
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking proptest v0.9.4
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking ring-channel v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mockall v0.5.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.64s
[INFO] running `"docker" "inspect" "4ceb2438ede885b3e35932f88c19dee655cf10c896bdd57b7a6042d2d9e2f9d6"`
[INFO] running `"docker" "rm" "-f" "4ceb2438ede885b3e35932f88c19dee655cf10c896bdd57b7a6042d2d9e2f9d6"`
[INFO] [stdout] 4ceb2438ede885b3e35932f88c19dee655cf10c896bdd57b7a6042d2d9e2f9d6