[INFO] fetching crate crucio 0.1.0...
[INFO] testing crucio-0.1.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate crucio 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate crucio 0.1.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crucio 0.1.0
[INFO] finished tweaking crates.io crate crucio 0.1.0
[INFO] tweaked toml for crates.io crate crucio 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 181f7f8a2577ff3e7aa93febff6febc66cd5b0f44b0cfd10cbc47aabf60d03ca
[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" "181f7f8a2577ff3e7aa93febff6febc66cd5b0f44b0cfd10cbc47aabf60d03ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "181f7f8a2577ff3e7aa93febff6febc66cd5b0f44b0cfd10cbc47aabf60d03ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181f7f8a2577ff3e7aa93febff6febc66cd5b0f44b0cfd10cbc47aabf60d03ca", kill_on_drop: false }`
[INFO] [stdout] 181f7f8a2577ff3e7aa93febff6febc66cd5b0f44b0cfd10cbc47aabf60d03ca
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a6a50c8c80efbd49d66fe440e6cf181b25f9b8042dad69389fa57a1c057c1e3
[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" "8a6a50c8c80efbd49d66fe440e6cf181b25f9b8042dad69389fa57a1c057c1e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling snafu-derive v0.4.4
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling snafu v0.4.4
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling crucio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `empty` in module `future`
[INFO] [stdout]   --> src/modes/never.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let () = future::empty().await;
[INFO] [stdout]    |                      ^^^^^ not found in `future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  | use core::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::modes::never_accept::mem::hash::impls::slice::empty;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::modes::random_tcp::future::empty;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::modes::random_tcp::stream::channel::mpsc::thread::io::empty;
[INFO] [stdout]    |
[INFO] [stdout]      and 8 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `empty` in module `future`
[INFO] [stdout]   --> src/modes/never_body.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let () = future::empty().await;
[INFO] [stdout]    |                              ^^^^^ not found in `future`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  | use core::iter::empty;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::modes::never_accept::mem::hash::impls::slice::empty;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::modes::random_tcp::future::empty;
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::modes::random_tcp::stream::channel::mpsc::thread::io::empty;
[INFO] [stdout]    |
[INFO] [stdout]      and 8 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/never_body.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         async move |()| -> Option<(Result<Vec<u8>, Error>, ())> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         async move |mut rng| -> Option<(Result<Vec<u8>, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random_text.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         async move |mut rng| -> Option<(Result<String, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/slow_body.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut data| -> Option<(Result<Vec<u8>, Error>, VecDeque<u8>)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crucio`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8a6a50c8c80efbd49d66fe440e6cf181b25f9b8042dad69389fa57a1c057c1e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a6a50c8c80efbd49d66fe440e6cf181b25f9b8042dad69389fa57a1c057c1e3", kill_on_drop: false }`
[INFO] [stdout] 8a6a50c8c80efbd49d66fe440e6cf181b25f9b8042dad69389fa57a1c057c1e3