[INFO] fetching crate fasttext-serving 0.6.2...
[INFO] testing fasttext-serving-0.6.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate fasttext-serving 0.6.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fasttext-serving 0.6.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fasttext-serving 0.6.2
[INFO] finished tweaking crates.io crate fasttext-serving 0.6.2
[INFO] tweaked toml for crates.io crate fasttext-serving 0.6.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate fasttext-serving 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mimalloc v0.1.25
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.21
[INFO] [stderr]   Downloaded cfasttext-sys v0.5.2
[INFO] [stderr]   Downloaded fasttext v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1399f75dcc0c37bef461fc9c46e15180faa50994a6b32c9d275c7703b081e1f4
[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" "1399f75dcc0c37bef461fc9c46e15180faa50994a6b32c9d275c7703b081e1f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1399f75dcc0c37bef461fc9c46e15180faa50994a6b32c9d275c7703b081e1f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1399f75dcc0c37bef461fc9c46e15180faa50994a6b32c9d275c7703b081e1f4", kill_on_drop: false }`
[INFO] [stdout] 1399f75dcc0c37bef461fc9c46e15180faa50994a6b32c9d275c7703b081e1f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 838093233bf49a1e291fd35cedd273d652ecf26345307391f73983e338c4efac
[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" "838093233bf49a1e291fd35cedd273d652ecf26345307391f73983e338c4efac", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling anyhow v1.0.39
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling standback v0.2.16
[INFO] [stderr]    Compiling actix-service v2.0.0-beta.5
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]    Compiling bytestring v1.0.0
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling tinyvec v1.1.1
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling http-body v0.4.1
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling cfasttext-sys v0.5.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stdout] error[E0432]: unresolved import `core::task::Wake`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/standback-0.2.16/src/lib.rs:520:13
[INFO] [stdout]     |
[INFO] [stdout] 520 |     pub use core::task::Wake;
[INFO] [stdout]     |             ^^^^^^^^^^^^----
[INFO] [stdout]     |             |           |
[INFO] [stdout]     |             |           help: a similar name exists in the module (notice the capitalization): `wake`
[INFO] [stdout]     |             no `Wake` in `task`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `standback` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "838093233bf49a1e291fd35cedd273d652ecf26345307391f73983e338c4efac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "838093233bf49a1e291fd35cedd273d652ecf26345307391f73983e338c4efac", kill_on_drop: false }`
[INFO] [stdout] 838093233bf49a1e291fd35cedd273d652ecf26345307391f73983e338c4efac