Dec 15 14:10:43.046 INFO testing futures-io-preview-0.3.0-alpha.10 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 14:10:43.047 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14:10:43.451 INFO [stdout] ec95e308740acd8a32b6e89689be53f4c7ebdcd6b766c85992bd3a2641070cf9
Dec 15 14:10:43.457 INFO running `"docker" "start" "-a" "ec95e308740acd8a32b6e89689be53f4c7ebdcd6b766c85992bd3a2641070cf9"`
Dec 15 14:10:44.250 INFO [stderr] usermod: no changes
Dec 15 14:10:44.302 INFO [stderr]    Compiling futures-io-preview v0.3.0-alpha.10 (/source)
Dec 15 14:10:45.275 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
Dec 15 14:10:45.283 INFO [stderr] su: No module specific data is present
Dec 15 14:10:45.726 INFO running `"docker" "inspect" "ec95e308740acd8a32b6e89689be53f4c7ebdcd6b766c85992bd3a2641070cf9"`
Dec 15 14:10:45.916 INFO running `"docker" "rm" "-f" "ec95e308740acd8a32b6e89689be53f4c7ebdcd6b766c85992bd3a2641070cf9"`
Dec 15 14:10:46.047 INFO [stdout] ec95e308740acd8a32b6e89689be53f4c7ebdcd6b766c85992bd3a2641070cf9
Dec 15 14:10:46.053 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14:10:46.330 INFO [stdout] 2cd78398fb02eda5d1ab2cf7c90bc8ef71154d5c3428ef83f81be2bff1746fa4
Dec 15 14:10:46.331 INFO running `"docker" "start" "-a" "2cd78398fb02eda5d1ab2cf7c90bc8ef71154d5c3428ef83f81be2bff1746fa4"`
Dec 15 14:10:46.863 INFO [stderr] usermod: no changes
Dec 15 14:10:46.891 INFO [stderr]    Compiling futures-io-preview v0.3.0-alpha.10 (/source)
Dec 15 14:10:47.935 INFO [stderr] error[E0432]: unresolved import `assert_matches`
Dec 15 14:10:47.935 INFO [stderr]  --> tests/cursor.rs:3:5
Dec 15 14:10:47.935 INFO [stderr]   |
Dec 15 14:10:47.935 INFO [stderr] 3 | use assert_matches::assert_matches;
Dec 15 14:10:47.935 INFO [stderr]   |     ^^^^^^^^^^^^^^ use of undeclared type or module `assert_matches`
Dec 15 14:10:47.935 INFO [stderr] 
Dec 15 14:10:47.935 INFO [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr]  --> tests/cursor.rs:5:5
Dec 15 14:10:47.935 INFO [stderr]   |
Dec 15 14:10:47.935 INFO [stderr] 5 | use futures::future::lazy;
Dec 15 14:10:47.935 INFO [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr] 
Dec 15 14:10:47.935 INFO [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr]  --> tests/cursor.rs:6:5
Dec 15 14:10:47.935 INFO [stderr]   |
Dec 15 14:10:47.935 INFO [stderr] 6 | use futures::io::AsyncWrite;
Dec 15 14:10:47.935 INFO [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr] 
Dec 15 14:10:47.935 INFO [stderr] error[E0432]: unresolved import `futures`
Dec 15 14:10:47.935 INFO [stderr]  --> tests/cursor.rs:4:5
Dec 15 14:10:47.935 INFO [stderr]   |
Dec 15 14:10:47.935 INFO [stderr] 4 | use futures::Poll;
Dec 15 14:10:47.935 INFO [stderr]   |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr] 
Dec 15 14:10:47.935 INFO [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr]   --> tests/cursor.rs:12:5
Dec 15 14:10:47.935 INFO [stderr]    |
Dec 15 14:10:47.935 INFO [stderr] 12 |     futures::executor::block_on(lazy(|ctx| {
Dec 15 14:10:47.935 INFO [stderr]    |     ^^^^^^^ use of undeclared type or module `futures`
Dec 15 14:10:47.935 INFO [stderr] 
Dec 15 14:10:48.017 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.017 INFO [stderr]   --> tests/cursor.rs:13:9
Dec 15 14:10:48.017 INFO [stderr]    |
Dec 15 14:10:48.017 INFO [stderr] 13 |         assert_matches!(cursor.poll_write(ctx, &[1, 2]), Poll::Ready(Ok(2)));
Dec 15 14:10:48.017 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.017 INFO [stderr]    |
Dec 15 14:10:48.017 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.018 INFO [stderr] 
Dec 15 14:10:48.018 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.018 INFO [stderr]   --> tests/cursor.rs:14:9
Dec 15 14:10:48.018 INFO [stderr]    |
Dec 15 14:10:48.018 INFO [stderr] 14 |         assert_matches!(cursor.poll_write(ctx, &[3, 4]), Poll::Ready(Ok(2)));
Dec 15 14:10:48.018 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.018 INFO [stderr]    |
Dec 15 14:10:48.018 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.018 INFO [stderr] 
Dec 15 14:10:48.018 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.018 INFO [stderr]   --> tests/cursor.rs:15:9
Dec 15 14:10:48.018 INFO [stderr]    |
Dec 15 14:10:48.018 INFO [stderr] 15 |         assert_matches!(cursor.poll_write(ctx, &[5, 6]), Poll::Ready(Ok(1)));
Dec 15 14:10:48.018 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.018 INFO [stderr]    |
Dec 15 14:10:48.018 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.018 INFO [stderr] 
Dec 15 14:10:48.018 INFO [stderr] error: cannot determine resolution for the macro `assert_matches`
Dec 15 14:10:48.018 INFO [stderr]   --> tests/cursor.rs:16:9
Dec 15 14:10:48.018 INFO [stderr]    |
Dec 15 14:10:48.018 INFO [stderr] 16 |         assert_matches!(cursor.poll_write(ctx, &[6, 7]), Poll::Ready(Ok(0)));
Dec 15 14:10:48.018 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 15 14:10:48.018 INFO [stderr]    |
Dec 15 14:10:48.018 INFO [stderr]    = note: import resolution is stuck, try simplifying macro imports
Dec 15 14:10:48.018 INFO [stderr] 
Dec 15 14:10:48.019 INFO [stderr] error[E0425]: cannot find function `lazy` in this scope
Dec 15 14:10:48.019 INFO [stderr]   --> tests/cursor.rs:12:33
Dec 15 14:10:48.019 INFO [stderr]    |
Dec 15 14:10:48.019 INFO [stderr] 12 |     futures::executor::block_on(lazy(|ctx| {
Dec 15 14:10:48.019 INFO [stderr]    |                                 ^^^^ not found in this scope
Dec 15 14:10:48.019 INFO [stderr] 
Dec 15 14:10:48.019 INFO [stderr] error: aborting due to 10 previous errors
Dec 15 14:10:48.019 INFO [stderr] 
Dec 15 14:10:48.019 INFO [stderr] Some errors occurred: E0425, E0432, E0433.
Dec 15 14:10:48.019 INFO [stderr] For more information about an error, try `rustc --explain E0425`.
Dec 15 14:10:48.027 INFO [stderr] error: Could not compile `futures-io-preview`.
Dec 15 14:10:48.027 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 15 14:10:48.031 INFO [stderr] error: build failed
Dec 15 14:10:48.039 INFO [stderr] su: No module specific data is present
Dec 15 14:10:48.497 INFO running `"docker" "inspect" "2cd78398fb02eda5d1ab2cf7c90bc8ef71154d5c3428ef83f81be2bff1746fa4"`
Dec 15 14:10:48.773 INFO running `"docker" "rm" "-f" "2cd78398fb02eda5d1ab2cf7c90bc8ef71154d5c3428ef83f81be2bff1746fa4"`
Dec 15 14:10:49.011 INFO [stdout] 2cd78398fb02eda5d1ab2cf7c90bc8ef71154d5c3428ef83f81be2bff1746fa4