[INFO] cloning repository https://github.com/wezm/rust-intro-talk
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wezm/rust-intro-talk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Frust-intro-talk"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Frust-intro-talk'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 978872c31d714aa413ee86a7c6b5ccdbc8966caa
[INFO] checking wezm/rust-intro-talk against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Frust-intro-talk" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wezm/rust-intro-talk 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/wezm/rust-intro-talk
[INFO] finished tweaking git repo https://github.com/wezm/rust-intro-talk
[INFO] tweaked toml for git repo https://github.com/wezm/rust-intro-talk written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wezm/rust-intro-talk 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-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] c95716eae65c344ee850305230998f72cd8ed949ca94e86c759a2553843f3bc8
[INFO] running `"docker" "start" "-a" "c95716eae65c344ee850305230998f72cd8ed949ca94e86c759a2553843f3bc8"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.35
[INFO] [stderr]    Compiling pulldown-cmark v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]     Checking bytecount v0.2.0
[INFO] [stderr]     Checking semver v0.8.0
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling rand v0.3.19
[INFO] [stderr]     Checking cargo_metadata v0.3.3
[INFO] [stderr]     Checking skeptic v0.13.2
[INFO] [stderr]    Compiling demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.00s
[INFO] running `"docker" "inspect" "c95716eae65c344ee850305230998f72cd8ed949ca94e86c759a2553843f3bc8"`
[INFO] running `"docker" "rm" "-f" "c95716eae65c344ee850305230998f72cd8ed949ca94e86c759a2553843f3bc8"`
[INFO] [stdout] c95716eae65c344ee850305230998f72cd8ed949ca94e86c759a2553843f3bc8