[INFO] fetching crate futures-channel-preview 0.3.0-alpha.19...
[INFO] checking futures-channel-preview-0.3.0-alpha.19 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate futures-channel-preview 0.3.0-alpha.19 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate futures-channel-preview 0.3.0-alpha.19 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-channel-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-channel-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-channel-preview 0.3.0-alpha.19 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a19ad80917db9c5c750ff403cf50b9a7484ecee466e01871f2a599591cda280b
[INFO] running `Command { std: "docker" "start" "-a" "a19ad80917db9c5c750ff403cf50b9a7484ecee466e01871f2a599591cda280b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a19ad80917db9c5c750ff403cf50b9a7484ecee466e01871f2a599591cda280b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a19ad80917db9c5c750ff403cf50b9a7484ecee466e01871f2a599591cda280b", kill_on_drop: false }`
[INFO] [stdout] a19ad80917db9c5c750ff403cf50b9a7484ecee466e01871f2a599591cda280b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c984cbd0820e3ea19d0df733ca099cceb5eb006059138138cb809d4be50eb2a4
[INFO] running `Command { std: "docker" "start" "-a" "c984cbd0820e3ea19d0df733ca099cceb5eb006059138138cb809d4be50eb2a4", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:771:49
[INFO] [stdout]     |
[INFO] [stdout] 771 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:771:49
[INFO] [stdout]     |
[INFO] [stdout] 771 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:126:7
[INFO] [stdout]     |
[INFO] [stdout] 126 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:126:7
[INFO] [stdout]     |
[INFO] [stdout] 126 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::oneshot::{self, Sender};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::{Future, FutureExt, poll_fn};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/oneshot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_test::task::panic_waker_ref;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_core::task::panic_waker_ref;
[INFO] [stdout]   |     ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::poll_fn;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> benches/sync_mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     futures::{
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]   --> benches/sync_mpsc.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     futures_test::task::noop_context,
[INFO] [stdout]    |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 14 |     futures_core::task::noop_context,
[INFO] [stdout]    |     ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> benches/sync_mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     futures::{
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::{mpsc, oneshot};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::{block_on, block_on_stream};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::{FutureExt, poll_fn};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::{Stream, StreamExt};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sink::{Sink, SinkExt};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/mpsc.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures_test::task::{new_count_waker, noop_context};
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures_core::task::{new_count_waker, noop_context};
[INFO] [stdout]   |     ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> tests/mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::pin_mut;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "oneshot") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `futures-channel-preview` (bench "sync_mpsc") due to 4 previous errors
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "channel") due to 6 previous errors
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "mpsc") due to 9 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]   --> tests/mpsc-close.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 16 |     drop(block_on(receiver.take(3).for_each(|_| futures::future::ready(()))));
[INFO] [stdout]    |                                                 ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::future;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::future;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `future`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 16 -     drop(block_on(receiver.take(3).for_each(|_| futures::future::ready(()))));
[INFO] [stdout] 16 +     drop(block_on(receiver.take(3).for_each(|_| future::ready(()))));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "mpsc-close") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "c984cbd0820e3ea19d0df733ca099cceb5eb006059138138cb809d4be50eb2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c984cbd0820e3ea19d0df733ca099cceb5eb006059138138cb809d4be50eb2a4", kill_on_drop: false }`
[INFO] [stdout] c984cbd0820e3ea19d0df733ca099cceb5eb006059138138cb809d4be50eb2a4
[INFO] checking futures-channel-preview-0.3.0-alpha.19 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate futures-channel-preview 0.3.0-alpha.19 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate futures-channel-preview 0.3.0-alpha.19 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-channel-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-channel-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-channel-preview 0.3.0-alpha.19 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec08c01ed214d531795847b9f5ca046ad1ed18039afc4a29bc4127016e941ded
[INFO] running `Command { std: "docker" "start" "-a" "ec08c01ed214d531795847b9f5ca046ad1ed18039afc4a29bc4127016e941ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec08c01ed214d531795847b9f5ca046ad1ed18039afc4a29bc4127016e941ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec08c01ed214d531795847b9f5ca046ad1ed18039afc4a29bc4127016e941ded", kill_on_drop: false }`
[INFO] [stdout] ec08c01ed214d531795847b9f5ca046ad1ed18039afc4a29bc4127016e941ded
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13c1eb099242ff975ab9893e7b1eecf9d7d0fd23c56fd330e30ba87806180e52
[INFO] running `Command { std: "docker" "start" "-a" "13c1eb099242ff975ab9893e7b1eecf9d7d0fd23c56fd330e30ba87806180e52", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:771:49
[INFO] [stdout]     |
[INFO] [stdout] 771 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/mpsc/mod.rs:771:49
[INFO] [stdout]     |
[INFO] [stdout] 771 |             let actual = self.inner.num_senders.compare_and_swap(curr, next, SeqCst);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:126:7
[INFO] [stdout]     |
[INFO] [stdout] 126 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssertKinds` is never used
[INFO] [stdout]    --> src/mpsc/mod.rs:126:7
[INFO] [stdout]     |
[INFO] [stdout] 126 | trait AssertKinds: Send + Sync + Clone {}
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::poll_fn;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/channel.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> benches/sync_mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     futures::{
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]   --> benches/sync_mpsc.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     futures_test::task::noop_context,
[INFO] [stdout]    |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 14 |     futures_core::task::noop_context,
[INFO] [stdout]    |     ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> benches/sync_mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     futures::{
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::mpsc;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::sink::SinkExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc-close.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::oneshot::{self, Sender};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::channel::{mpsc, oneshot};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::{block_on, block_on_stream};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::executor::block_on;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::{FutureExt, poll_fn};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::future::{Future, FutureExt, poll_fn};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> tests/channel.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in (1..amt + 1).rev() {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::stream::{Stream, StreamExt};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> tests/channel.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |     for x in 0..n {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/oneshot.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::sink::{Sink, SinkExt};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]  --> tests/mpsc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::task::{Context, Poll};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/oneshot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_test::task::panic_waker_ref;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_core::task::panic_waker_ref;
[INFO] [stdout]   |     ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_test`
[INFO] [stdout]  --> tests/mpsc.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures_test::task::{new_count_waker, noop_context};
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared crate or module `futures_test`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures_core::task::{new_count_waker, noop_context};
[INFO] [stdout]   |     ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures`
[INFO] [stdout]  --> tests/mpsc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::pin_mut;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> benches/sync_mpsc.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |         for i in 0..1000 {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> benches/sync_mpsc.rs:47:27
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let tx: Vec<_> = (0..100).map(|_| tx.clone()).collect();
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> benches/sync_mpsc.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for _ in 0..10 {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> benches/sync_mpsc.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |             for i in 0..tx.len() {
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> benches/sync_mpsc.rs:68:18
[INFO] [stdout]    |
[INFO] [stdout] 68 |         for i in 0..1000 {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> benches/sync_mpsc.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |         for i in 0..1000 {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> benches/sync_mpsc.rs:126:31
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut tx: Vec<_> = (0..100).map(|_| {
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> benches/sync_mpsc.rs:133:18
[INFO] [stdout]     |
[INFO] [stdout] 133 |         for i in 0..10 {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> benches/sync_mpsc.rs:134:22
[INFO] [stdout]     |
[INFO] [stdout] 134 |             for j in 0..tx.len() {
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> tests/oneshot.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     for _ in 0..20000 {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/oneshot.rs:124:14
[INFO] [stdout]     |
[INFO] [stdout] 124 |     for _ in 0..20000 {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:217:14
[INFO] [stdout]     |
[INFO] [stdout] 217 |     for _ in 0..NTHREADS {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:221:22
[INFO] [stdout]     |
[INFO] [stdout] 221 |             for _ in 0..AMT {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:246:14
[INFO] [stdout]     |
[INFO] [stdout] 246 |     for _ in 0..NTHREADS {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:250:22
[INFO] [stdout]     |
[INFO] [stdout] 250 |             for _ in 0..AMT {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:272:14
[INFO] [stdout]     |
[INFO] [stdout] 272 |     for _ in 0..NTHREADS {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:316:14
[INFO] [stdout]     |
[INFO] [stdout] 316 |     for i in 0..AMT {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:340:14
[INFO] [stdout]     |
[INFO] [stdout] 340 |     for _ in 0..10000 {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:347:14
[INFO] [stdout]     |
[INFO] [stdout] 347 |     for i in 1..=3 {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:359:18
[INFO] [stdout]     |
[INFO] [stdout] 359 |         for i in 1.. {
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:372:14
[INFO] [stdout]     |
[INFO] [stdout] 372 |     for i in 2.. {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:387:14
[INFO] [stdout]     |
[INFO] [stdout] 387 |     for _ in 0..10000 {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:393:15
[INFO] [stdout]     |
[INFO] [stdout] 393 |     for i in (1..=count).rev() {
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:408:18
[INFO] [stdout]     |
[INFO] [stdout] 408 |         for _ in 0..NTHREADS {
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> tests/mpsc.rs:436:18
[INFO] [stdout]     |
[INFO] [stdout] 436 |         for i in 0..N {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures`
[INFO] [stdout]   --> tests/mpsc-close.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 16 |     drop(block_on(receiver.take(3).for_each(|_| futures::future::ready(()))));
[INFO] [stdout]    |                                                 ^^^^^^^ use of undeclared crate or module `futures`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::future;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::future;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `future`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 16 -     drop(block_on(receiver.take(3).for_each(|_| futures::future::ready(()))));
[INFO] [stdout] 16 +     drop(block_on(receiver.take(3).for_each(|_| future::ready(()))));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (bench "sync_mpsc") due to 4 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "oneshot") due to 6 previous errors; 2 warnings emitted
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "channel") due to 6 previous errors; 2 warnings emitted
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "mpsc") due to 9 previous errors; 14 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-channel-preview` (test "mpsc-close") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "13c1eb099242ff975ab9893e7b1eecf9d7d0fd23c56fd330e30ba87806180e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13c1eb099242ff975ab9893e7b1eecf9d7d0fd23c56fd330e30ba87806180e52", kill_on_drop: false }`
[INFO] [stdout] 13c1eb099242ff975ab9893e7b1eecf9d7d0fd23c56fd330e30ba87806180e52
