[INFO] cloning repository https://github.com/iyuroch/websocket_exmpl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iyuroch/websocket_exmpl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiyuroch%2Fwebsocket_exmpl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiyuroch%2Fwebsocket_exmpl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ae6ab9cd95211dbed25237d6132d88f41f7dae2
[INFO] checking iyuroch/websocket_exmpl against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiyuroch%2Fwebsocket_exmpl" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iyuroch/websocket_exmpl 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/iyuroch/websocket_exmpl
[INFO] finished tweaking git repo https://github.com/iyuroch/websocket_exmpl
[INFO] tweaked toml for git repo https://github.com/iyuroch/websocket_exmpl written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/iyuroch/websocket_exmpl 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]  Downloading crates ...
[INFO] [stderr]   Downloaded opaque-debug v0.2.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.42
[INFO] [stderr]   Downloaded tokio v0.1.16
[INFO] [stderr]   Downloaded tokio-sync v0.1.3
[INFO] [stderr]   Downloaded security-framework v0.2.2
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.12
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.5
[INFO] [stderr]   Downloaded digest v0.8.0
[INFO] [stderr]   Downloaded security-framework-sys v0.2.3
[INFO] [stderr]   Downloaded tokio-dns-unofficial v0.3.1
[INFO] [stderr]   Downloaded block-buffer v0.7.0
[INFO] [stderr]   Downloaded tungstenite v0.6.1
[INFO] [stderr]   Downloaded MacTypes-sys v2.1.0
[INFO] [stderr]   Downloaded websocket v0.22.3
[INFO] [stderr]   Downloaded hyper v0.10.15
[INFO] [stderr]   Downloaded block-padding v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.50
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded tokio-executor v0.1.6
[INFO] [stderr]   Downloaded rand_jitter v0.1.3
[INFO] [stderr]   Downloaded cc v1.0.30
[INFO] [stderr]   Downloaded openssl v0.10.19
[INFO] [stderr]   Downloaded tokio-tungstenite v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] b4579f33566b082a11402a39e8e07f757faae7073e9522ff94f211b42b19e592
[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" "b4579f33566b082a11402a39e8e07f757faae7073e9522ff94f211b42b19e592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4579f33566b082a11402a39e8e07f757faae7073e9522ff94f211b42b19e592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4579f33566b082a11402a39e8e07f757faae7073e9522ff94f211b42b19e592", kill_on_drop: false }`
[INFO] [stdout] b4579f33566b082a11402a39e8e07f757faae7073e9522ff94f211b42b19e592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 83fd56f4d73231123b79c199337a8c0a0b3b8f844222201e1430b7aa02d9e959
[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" "83fd56f4d73231123b79c199337a8c0a0b3b8f844222201e1430b7aa02d9e959", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling cc v1.0.30
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling openssl v0.10.19
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking tokio-sync v0.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking mime v0.2.6
[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 rand v0.5.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling openssl-sys v0.9.42
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.12
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking block-buffer v0.7.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[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" "83fd56f4d73231123b79c199337a8c0a0b3b8f844222201e1430b7aa02d9e959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83fd56f4d73231123b79c199337a8c0a0b3b8f844222201e1430b7aa02d9e959", kill_on_drop: false }`
[INFO] [stdout] 83fd56f4d73231123b79c199337a8c0a0b3b8f844222201e1430b7aa02d9e959