[INFO] cloning repository https://github.com/liufuyang/rust_chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liufuyang/rust_chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliufuyang%2Frust_chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliufuyang%2Frust_chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed43847df89def16f4c45f2f490bf030cb7636a3
[INFO] checking liufuyang/rust_chat against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliufuyang%2Frust_chat" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liufuyang/rust_chat on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/liufuyang/rust_chat
[INFO] finished tweaking git repo https://github.com/liufuyang/rust_chat
[INFO] tweaked toml for git repo https://github.com/liufuyang/rust_chat written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/liufuyang/rust_chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 044331244fd21d7db472922095db2c496b75ecc9641ebbdd14bf05433187d25a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "044331244fd21d7db472922095db2c496b75ecc9641ebbdd14bf05433187d25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "044331244fd21d7db472922095db2c496b75ecc9641ebbdd14bf05433187d25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "044331244fd21d7db472922095db2c496b75ecc9641ebbdd14bf05433187d25a", kill_on_drop: false }`
[INFO] [stdout] 044331244fd21d7db472922095db2c496b75ecc9641ebbdd14bf05433187d25a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4dbdbe55800ba3ec81d738695f1216e286f13cf3cc35a56ee4beaa028231897a
[INFO] running `Command { std: "docker" "start" "-a" "4dbdbe55800ba3ec81d738695f1216e286f13cf3cc35a56ee4beaa028231897a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.51
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling tokio v0.3.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.39s
[INFO] running `Command { std: "docker" "inspect" "4dbdbe55800ba3ec81d738695f1216e286f13cf3cc35a56ee4beaa028231897a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dbdbe55800ba3ec81d738695f1216e286f13cf3cc35a56ee4beaa028231897a", kill_on_drop: false }`
[INFO] [stdout] 4dbdbe55800ba3ec81d738695f1216e286f13cf3cc35a56ee4beaa028231897a