Dec 15 14:10:43.282 INFO testing futures-io-preview-0.3.0-alpha.10 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 14:10:43.282 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 14:10:43.634 INFO [stdout] b5ea1f43ff7662380a1869d9f2a368135dee075437e6c3ab4e2c432a74d23bd7
Dec 15 14:10:43.636 INFO running `"docker" "start" "-a" "b5ea1f43ff7662380a1869d9f2a368135dee075437e6c3ab4e2c432a74d23bd7"`
Dec 15 14:10:44.391 INFO [stderr] usermod: no changes
Dec 15 14:10:44.449 INFO [stderr]    Compiling futures-core-preview v0.3.0-alpha.10
Dec 15 14:10:45.372 INFO [stderr]    Compiling futures-io-preview v0.3.0-alpha.10 (/source)
Dec 15 14:10:46.224 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
Dec 15 14:10:46.228 INFO [stderr] su: No module specific data is present
Dec 15 14:10:46.505 INFO running `"docker" "inspect" "b5ea1f43ff7662380a1869d9f2a368135dee075437e6c3ab4e2c432a74d23bd7"`
Dec 15 14:10:46.579 INFO running `"docker" "rm" "-f" "b5ea1f43ff7662380a1869d9f2a368135dee075437e6c3ab4e2c432a74d23bd7"`
Dec 15 14:10:46.697 INFO [stdout] b5ea1f43ff7662380a1869d9f2a368135dee075437e6c3ab4e2c432a74d23bd7
Dec 15 14:10:46.702 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 14:10:46.904 INFO [stdout] 537ad924c5a0a12f5b590d4f8f455d09fdc4ec27089ef891e2b75620c684181a
Dec 15 14:10:46.908 INFO running `"docker" "start" "-a" "537ad924c5a0a12f5b590d4f8f455d09fdc4ec27089ef891e2b75620c684181a"`
Dec 15 14:10:47.418 INFO [stderr] usermod: no changes
Dec 15 14:10:47.453 INFO [stderr]    Compiling futures-io-preview v0.3.0-alpha.10 (/source)
Dec 15 14:10:48.589 INFO [stderr] error[E0432]: unresolved import `assert_matches`
Dec 15 14:10:48.589 INFO [stderr]  --> tests/cursor.rs:3:5
Dec 15 14:10:48.589 INFO [stderr]   |
Dec 15 14:10:48.589 INFO [stderr] 3 | use assert_matches::assert_matches;
Dec 15 14:10:48.589 INFO [stderr]   |     ^^^^^^^^^^^^^^ use of undeclared type or module `assert_matches`
Dec 15 14:10:48.589 INFO [stderr] 
Dec 15 14:10:48.589 INFO [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr]  --> tests/cursor.rs:5:5
Dec 15 14:10:48.589 INFO [stderr]   |
Dec 15 14:10:48.589 INFO [stderr] 5 | use futures::future::lazy;
Dec 15 14:10:48.589 INFO [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr] 
Dec 15 14:10:48.589 INFO [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr]  --> tests/cursor.rs:6:5
Dec 15 14:10:48.589 INFO [stderr]   |
Dec 15 14:10:48.589 INFO [stderr] 6 | use futures::io::AsyncWrite;
Dec 15 14:10:48.589 INFO [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr] 
Dec 15 14:10:48.589 INFO [stderr] error[E0432]: unresolved import `futures`
Dec 15 14:10:48.589 INFO [stderr]  --> tests/cursor.rs:4:5
Dec 15 14:10:48.589 INFO [stderr]   |
Dec 15 14:10:48.589 INFO [stderr] 4 | use futures::Poll;
Dec 15 14:10:48.589 INFO [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr] 
Dec 15 14:10:48.589 INFO [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr]   --> tests/cursor.rs:12:5
Dec 15 14:10:48.589 INFO [stderr]    |
Dec 15 14:10:48.589 INFO [stderr] 12 |     futures::executor::block_on(lazy(|ctx| {
Dec 15 14:10:48.589 INFO [stderr]    |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:48.589 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.767 INFO [stderr]   --> tests/cursor.rs:13:9
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr] 13 |         assert_matches!(cursor.poll_write(ctx, &[1, 2]), Poll::Ready(Ok(2)));
Dec 15 14:10:48.767 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.767 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.767 INFO [stderr]   --> tests/cursor.rs:14:9
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr] 14 |         assert_matches!(cursor.poll_write(ctx, &[3, 4]), Poll::Ready(Ok(2)));
Dec 15 14:10:48.767 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.767 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.767 INFO [stderr]   --> tests/cursor.rs:15:9
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr] 15 |         assert_matches!(cursor.poll_write(ctx, &[5, 6]), Poll::Ready(Ok(1)));
Dec 15 14:10:48.767 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.767 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.767 INFO [stderr]   --> tests/cursor.rs:16:9
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr] 16 |         assert_matches!(cursor.poll_write(ctx, &[6, 7]), Poll::Ready(Ok(0)));
Dec 15 14:10:48.767 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.767 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] error[E0425]: cannot find function `lazy` in this scope
Dec 15 14:10:48.767 INFO [stderr]   --> tests/cursor.rs:12:33
Dec 15 14:10:48.767 INFO [stderr]    |
Dec 15 14:10:48.767 INFO [stderr] 12 |     futures::executor::block_on(lazy(|ctx| {
Dec 15 14:10:48.767 INFO [stderr]    |                                 ^^^^ not found in this scope
Dec 15 14:10:48.767 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] error: aborting due to 10 previous errors
Dec 15 14:10:48.767 INFO [stderr] 
Dec 15 14:10:48.767 INFO [stderr] Some errors occurred: E0425, E0432, E0433.
Dec 15 14:10:48.767 INFO [stderr] For more information about an error, try `rustc --explain E0425`.
Dec 15 14:10:48.779 INFO [stderr] error: Could not compile `futures-io-preview`.
Dec 15 14:10:48.779 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 15 14:10:48.810 INFO [stderr] error: build failed
Dec 15 14:10:48.811 INFO [stderr] su: No module specific data is present
Dec 15 14:10:49.393 INFO running `"docker" "inspect" "537ad924c5a0a12f5b590d4f8f455d09fdc4ec27089ef891e2b75620c684181a"`
Dec 15 14:10:49.643 INFO running `"docker" "rm" "-f" "537ad924c5a0a12f5b590d4f8f455d09fdc4ec27089ef891e2b75620c684181a"`
Dec 15 14:10:49.939 INFO [stdout] 537ad924c5a0a12f5b590d4f8f455d09fdc4ec27089ef891e2b75620c684181a