[INFO] cloning repository https://github.com/hexjelly/skog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hexjelly/skog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhexjelly%2Fskog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhexjelly%2Fskog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce150aa191d0e66412f6f859f753a2789ff2d548
[INFO] checking hexjelly/skog against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhexjelly%2Fskog" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hexjelly/skog 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/hexjelly/skog
[INFO] finished tweaking git repo https://github.com/hexjelly/skog
[INFO] tweaked toml for git repo https://github.com/hexjelly/skog written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/hexjelly/skog 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 6ebccce0ebd5c5c481b01b3e30b0c8e7d84254742770386268961be00febb78d
[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" "6ebccce0ebd5c5c481b01b3e30b0c8e7d84254742770386268961be00febb78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ebccce0ebd5c5c481b01b3e30b0c8e7d84254742770386268961be00febb78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ebccce0ebd5c5c481b01b3e30b0c8e7d84254742770386268961be00febb78d", kill_on_drop: false }`
[INFO] [stdout] 6ebccce0ebd5c5c481b01b3e30b0c8e7d84254742770386268961be00febb78d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 625795b9f67f085611bce5d4e682ef98b0570c3540d5f667fca8918065563755
[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" "625795b9f67f085611bce5d4e682ef98b0570c3540d5f667fca8918065563755", kill_on_drop: false }`
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.10.0
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.0
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking lru-cache v0.1.1
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking r2d2 v0.8.2
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking mime v0.3.12
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.8
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]     Checking tokio-uds v0.2.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking sha-1 v0.7.0
[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-0.1.4/src/read_dir.rs:243:6
[INFO] [stdout]     |
[INFO] [stdout] 243 | 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" "625795b9f67f085611bce5d4e682ef98b0570c3540d5f667fca8918065563755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625795b9f67f085611bce5d4e682ef98b0570c3540d5f667fca8918065563755", kill_on_drop: false }`
[INFO] [stdout] 625795b9f67f085611bce5d4e682ef98b0570c3540d5f667fca8918065563755