[INFO] updating cached repository jpoler/futures-0.3-compat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jpoler/futures-0.3-compat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jpoler/futures-0.3-compat" "work/ex/beta-1.38-1/sources/1.37.0/gh/jpoler/futures-0.3-compat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jpoler/futures-0.3-compat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jpoler/futures-0.3-compat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jpoler/futures-0.3-compat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jpoler/futures-0.3-compat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cdec9e5473dbf38588361b3dc5a45f9686e9c66f
[INFO] sha for GitHub repo jpoler/futures-0.3-compat: cdec9e5473dbf38588361b3dc5a45f9686e9c66f
[INFO] validating manifest of jpoler/futures-0.3-compat on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jpoler/futures-0.3-compat on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jpoler/futures-0.3-compat
[INFO] finished frobbing jpoler/futures-0.3-compat
[INFO] frobbed toml for jpoler/futures-0.3-compat written to work/ex/beta-1.38-1/sources/1.37.0/gh/jpoler/futures-0.3-compat/Cargo.toml
[INFO] started frobbing jpoler/futures-0.3-compat
[INFO] finished frobbing jpoler/futures-0.3-compat
[INFO] frobbed toml for jpoler/futures-0.3-compat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jpoler/futures-0.3-compat/Cargo.toml
[INFO] crate jpoler/futures-0.3-compat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jpoler/futures-0.3-compat against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jpoler/futures-0.3-compat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] afd4931f7d03112091853f6510b2c59d243891ec87c4cec22dc428cda676d563
[INFO] running `"docker" "start" "-a" "afd4931f7d03112091853f6510b2c59d243891ec87c4cec22dc428cda676d563"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr] warning: the cargo feature `rename-dependency` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.2 (https://github.com/rust-lang-nursery/futures-rs#86c40ff7)
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling tokio-threadpool v0.1.5
[INFO] [stderr] error[E0432]: unresolved import `core::mem::PinMut`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/future.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use core::mem::PinMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `core::future::FutureObj`, `core::future::LocalFutureObj`, `core::future::UnsafeFutureObj`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/future.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use core::future::{Future, FutureObj, LocalFutureObj, UnsafeFutureObj};
[INFO] [stderr]   |                                ^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^ no `UnsafeFutureObj` in `future`
[INFO] [stderr]   |                                |          |
[INFO] [stderr]   |                                |          no `LocalFutureObj` in `future`
[INFO] [stderr]   |                                no `FutureObj` in `future`
[INFO] [stderr]   |                                help: a similar name exists in the module: `Future`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::mem::PinMut`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/stream.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use core::mem::PinMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `core::task::Executor`, `core::task::LocalWaker`, `core::task::UnsafeWake`, `core::task::SpawnErrorKind`, `core::task::SpawnObjError`, `core::task::SpawnLocalObjError`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/task.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Context, Poll, Executor,
[INFO] [stderr]   |                    ^^^^^^^^ no `Executor` in `task`
[INFO] [stderr] 5 |     Waker, LocalWaker, UnsafeWake,
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^^^^^^^^ no `UnsafeWake` in `task`
[INFO] [stderr]   |            |
[INFO] [stderr]   |            no `LocalWaker` in `task`
[INFO] [stderr] 6 |     SpawnErrorKind, SpawnObjError, SpawnLocalObjError,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^ no `SpawnLocalObjError` in `task`
[INFO] [stderr]   |     |               |
[INFO] [stderr]   |     |               no `SpawnObjError` in `task`
[INFO] [stderr]   |     no `SpawnErrorKind` in `task`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::boxed::PinBox`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/stream.rs:128:27
[INFO] [stderr]     |
[INFO] [stderr] 128 |     use std::boxed::{Box, PinBox};
[INFO] [stderr]     |                           ^^^^^^ no `PinBox` in `boxed`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::task::Wake`, `std::task::local_waker`, `std::task::local_waker_from_nonlocal`
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/task.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub use std::task::{Wake, local_waker, local_waker_from_nonlocal};
[INFO] [stderr]    |                         ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^ no `local_waker_from_nonlocal` in `task`
[INFO] [stderr]    |                         |     |
[INFO] [stderr]    |                         |     no `local_waker` in `task`
[INFO] [stderr]    |                         no `Wake` in `task`
[INFO] [stderr]    |                         help: a similar name exists in the module: `Waker`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(pin, arbitrary_self_types, futures_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/stream.rs:68:10
[INFO] [stderr]    |
[INFO] [stderr] 68 | impl<'a, S: ?Sized + Stream> Stream for PinMut<'a, S> {
[INFO] [stderr]    |          ^ unconstrained type parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0207]: the type parameter `S` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/futures-rs-4ca77cb4f4f05ac4/86c40ff/futures-core/src/stream.rs:141:10
[INFO] [stderr]     |
[INFO] [stderr] 141 |     impl<S: ?Sized + Stream> Stream for PinBox<S> {
[INFO] [stderr]     |          ^ unconstrained type parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0207, E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0207`.
[INFO] [stderr] error: Could not compile `futures-core-preview`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "afd4931f7d03112091853f6510b2c59d243891ec87c4cec22dc428cda676d563"`
[INFO] running `"docker" "rm" "-f" "afd4931f7d03112091853f6510b2c59d243891ec87c4cec22dc428cda676d563"`
[INFO] [stdout] afd4931f7d03112091853f6510b2c59d243891ec87c4cec22dc428cda676d563