[INFO] cloning repository https://github.com/rongfengliang/grpc-rustdemo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rongfengliang/grpc-rustdemo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frongfengliang%2Fgrpc-rustdemo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frongfengliang%2Fgrpc-rustdemo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce177be0f846be812467a9d2cfe9223f9ac28b11
[INFO] checking rongfengliang/grpc-rustdemo against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frongfengliang%2Fgrpc-rustdemo" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rongfengliang/grpc-rustdemo on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rongfengliang/grpc-rustdemo
[INFO] finished tweaking git repo https://github.com/rongfengliang/grpc-rustdemo
[INFO] tweaked toml for git repo https://github.com/rongfengliang/grpc-rustdemo written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/rongfengliang/grpc-rustdemo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-rust-grpc v0.2.1
[INFO] [stderr]   Downloaded protoc v1.4.4
[INFO] [stderr]   Downloaded grpc-compiler v0.2.1
[INFO] [stderr]   Downloaded protoc-rust v1.4.4
[INFO] [stderr]   Downloaded protobuf v1.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b7b344d02391c6997f18848a4dfb7c8010ca9f437904caafcdc6daa1a971590
[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" "4b7b344d02391c6997f18848a4dfb7c8010ca9f437904caafcdc6daa1a971590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b7b344d02391c6997f18848a4dfb7c8010ca9f437904caafcdc6daa1a971590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7b344d02391c6997f18848a4dfb7c8010ca9f437904caafcdc6daa1a971590", kill_on_drop: false }`
[INFO] [stdout] 4b7b344d02391c6997f18848a4dfb7c8010ca9f437904caafcdc6daa1a971590
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3328e78896e240a7edc1196f695106a000f890fa04ae14737b7ab3b5f3795bed
[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" "3328e78896e240a7edc1196f695106a000f890fa04ae14737b7ab3b5f3795bed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]    Compiling protoc v1.4.4
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stdout] error[E0460]: found possibly newer version of crate `cfg_if` which `log` depends on
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protoc-1.4.4/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate log;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: perhaps that crate needs to be recompiled?
[INFO] [stdout]   = note: the following crate versions were found:
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-47728bf37d55435b.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-47728bf37d55435b.rlib
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-4b0a7d1b13381df7.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-2909e55669d95bfc.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-2909e55669d95bfc.rlib
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-3ffe9d8230e44ab9.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-3ffe9d8230e44ab9.rlib
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-4c6be1962c556cf0.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-4c6be1962c556cf0.rlib
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-0d4417a90ec4c84b.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-7d93c7b442f383f7.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-5fc753e2371790b9.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-d081dc850664d3b7.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-70c6a81acdb736cd.rmeta
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/rustup-home/toolchains/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-512eb53291f6de7e.rlib
[INFO] [stdout]           crate `cfg_if`: /opt/rustwide/target/debug/deps/libcfg_if-43c5b3beebaf9c97.rmeta
[INFO] [stdout]           crate `log`: /opt/rustwide/target/debug/deps/liblog-cb34a90061c8621b.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protoc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3328e78896e240a7edc1196f695106a000f890fa04ae14737b7ab3b5f3795bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3328e78896e240a7edc1196f695106a000f890fa04ae14737b7ab3b5f3795bed", kill_on_drop: false }`
[INFO] [stdout] 3328e78896e240a7edc1196f695106a000f890fa04ae14737b7ab3b5f3795bed