[INFO] updating cached repository https://github.com/FauxFaux/async-echo
[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] e8432629d5706f683192a043251403b3b4a53b0d
[INFO] checking FauxFaux/async-echo against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fasync-echo" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/async-echo on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FauxFaux/async-echo
[INFO] finished tweaking git repo https://github.com/FauxFaux/async-echo
[INFO] tweaked toml for git repo https://github.com/FauxFaux/async-echo written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/async-echo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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" "+d939f708d960161d23b964309ba68ff207fc0ead" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 28c3d18a8f403fa6e15dca3d0edf814a946235117b7912703f25c03aff86e3af
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "28c3d18a8f403fa6e15dca3d0edf814a946235117b7912703f25c03aff86e3af"`
[INFO] [stderr]     Checking futures-core v0.3.3
[INFO] [stderr]     Checking futures-io v0.3.3
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking futures-channel v0.3.3
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.3
[INFO] [stderr]     Checking futures-util v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.3
[INFO] [stderr]     Checking futures v0.3.3
[INFO] [stderr]     Checking async-echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.43s
[INFO] running `"docker" "inspect" "28c3d18a8f403fa6e15dca3d0edf814a946235117b7912703f25c03aff86e3af"`
[INFO] running `"docker" "rm" "-f" "28c3d18a8f403fa6e15dca3d0edf814a946235117b7912703f25c03aff86e3af"`
[INFO] [stdout] 28c3d18a8f403fa6e15dca3d0edf814a946235117b7912703f25c03aff86e3af