[INFO] cloning repository https://github.com/hicqu/tower-grpc-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hicqu/tower-grpc-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhicqu%2Ftower-grpc-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhicqu%2Ftower-grpc-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56130161e362d33ed9c66cad873a3260ead2a3f9
[INFO] checking hicqu/tower-grpc-learn against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhicqu%2Ftower-grpc-learn" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hicqu/tower-grpc-learn on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hicqu/tower-grpc-learn
[INFO] finished tweaking git repo https://github.com/hicqu/tower-grpc-learn
[INFO] tweaked toml for git repo https://github.com/hicqu/tower-grpc-learn written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hicqu/tower-grpc-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-grpc`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-hyper`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-http`
[INFO] [stderr]     Updating git repository `https://github.com/hyperium/http-connection`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio v0.6.17
[INFO] [stderr]   Downloaded backtrace v0.3.18
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", 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] 8c5358a10fd882058a0bc05348f629a8a1fad89be1cf3a5ce312b5cd32249733
[INFO] running `Command { std: "docker" "start" "-a" "8c5358a10fd882058a0bc05348f629a8a1fad89be1cf3a5ce312b5cd32249733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c5358a10fd882058a0bc05348f629a8a1fad89be1cf3a5ce312b5cd32249733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5358a10fd882058a0bc05348f629a8a1fad89be1cf3a5ce312b5cd32249733", kill_on_drop: false }`
[INFO] [stdout] 8c5358a10fd882058a0bc05348f629a8a1fad89be1cf3a5ce312b5cd32249733
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8a8bff894bfc87eca4626cb88f807139789aedcbe6261c993a1a4e98d5128a6
[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" "b8a8bff894bfc87eca4626cb88f807139789aedcbe6261c993a1a4e98d5128a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking futures v0.1.27
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling rustc-demangle v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.18
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking codegen v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.17
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]     Checking tower-service v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tower-layer v0.1.0
[INFO] [stderr]     Checking tower-util v0.1.0
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking tempfile v3.0.8
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stdout] error[E0277]: the trait bound `read_dir::DirEntry: std::sealed::Sealed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-fs-0.1.6/src/read_dir.rs:239:6
[INFO] [stdout]     |
[INFO] [stdout] 239 | impl DirEntryExt for DirEntry {
[INFO] [stdout]     |      ^^^^^^^^^^^ the trait `std::sealed::Sealed` is not implemented for `read_dir::DirEntry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-fs`
[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" "b8a8bff894bfc87eca4626cb88f807139789aedcbe6261c993a1a4e98d5128a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a8bff894bfc87eca4626cb88f807139789aedcbe6261c993a1a4e98d5128a6", kill_on_drop: false }`
[INFO] [stdout] b8a8bff894bfc87eca4626cb88f807139789aedcbe6261c993a1a4e98d5128a6