[INFO] fetching crate wasm-timer 0.2.0...
[INFO] extracting crate wasm-timer 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/wasm-timer/0.2.0
[INFO] extracting crate wasm-timer 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wasm-timer/0.2.0
[INFO] validating manifest of wasm-timer-0.2.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wasm-timer-0.2.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wasm-timer-0.2.0
[INFO] finished frobbing wasm-timer-0.2.0
[INFO] frobbed toml for wasm-timer-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/wasm-timer/0.2.0/Cargo.toml
[INFO] started frobbing wasm-timer-0.2.0
[INFO] finished frobbing wasm-timer-0.2.0
[INFO] frobbed toml for wasm-timer-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wasm-timer/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wasm-timer-0.2.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wasm-timer/0.2.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] aa2d3ea41c2a2dde2b3d3e733e0749d761b51e8250f9bc00159815920d72dd21
[INFO] running `"docker" "start" "-a" "aa2d3ea41c2a2dde2b3d3e733e0749d761b51e8250f9bc00159815920d72dd21"`
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling wasm-timer v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.17s
[INFO] running `"docker" "inspect" "aa2d3ea41c2a2dde2b3d3e733e0749d761b51e8250f9bc00159815920d72dd21"`
[INFO] running `"docker" "rm" "-f" "aa2d3ea41c2a2dde2b3d3e733e0749d761b51e8250f9bc00159815920d72dd21"`
[INFO] [stdout] aa2d3ea41c2a2dde2b3d3e733e0749d761b51e8250f9bc00159815920d72dd21
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wasm-timer/0.2.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6466636a2e3b86579c56b085bf4bf3a43422b6f4773a6c5874e75102f595734b
[INFO] running `"docker" "start" "-a" "6466636a2e3b86579c56b085bf4bf3a43422b6f4773a6c5874e75102f595734b"`
[INFO] [stderr]    Compiling wasm-timer v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `"docker" "inspect" "6466636a2e3b86579c56b085bf4bf3a43422b6f4773a6c5874e75102f595734b"`
[INFO] running `"docker" "rm" "-f" "6466636a2e3b86579c56b085bf4bf3a43422b6f4773a6c5874e75102f595734b"`
[INFO] [stdout] 6466636a2e3b86579c56b085bf4bf3a43422b6f4773a6c5874e75102f595734b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/wasm-timer/0.2.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5a9aaf78b755e36795fea32fba41d750e4dfdea3da2faf744ce5957e181bd423
[INFO] running `"docker" "start" "-a" "5a9aaf78b755e36795fea32fba41d750e4dfdea3da2faf744ce5957e181bd423"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wasm_timer-e04c0b05ecef68a1
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test timer::heap::tests::simple ... ok
[INFO] [stdout] test timer::heap::tests::remove ... ok
[INFO] [stdout] test timer::arc_list::tests::seal ... ok
[INFO] [stdout] test timer::heap::tests::test_push ... ok
[INFO] [stdout] test timer::heap::tests::test_to_vec ... ok
[INFO] [stdout] test timer::interval::test::fast_forward ... ok
[INFO] [stdout] test timer::heap::tests::test_empty_pop ... ok
[INFO] [stdout] test timer::arc_list::tests::smoke ... ok
[INFO] [stdout] test timer::interval::test::norm_next ... ok
[INFO] [stdout] test timer::heap::tests::test_peek_and_pop ... ok
[INFO] [stdout] test timer::heap::tests::simple2 ... ok
[INFO] [stdout] test timer::heap::tests::test_empty_peek ... ok
[INFO] [stdout] test timer::interval::test::large_skip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wasm-timer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/timer/ext.rs - timer::ext::TryFutureExt::timeout (line 29) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/timer/ext.rs - timer::ext::TryFutureExt::timeout (line 29) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `futures_timer`
[INFO] [stdout]  --> src/timer/ext.rs:33:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_timer::TryFutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ use of undeclared type or module `futures_timer`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `runtime`
[INFO] [stdout]   --> src/timer/ext.rs:39:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[runtime::main]
[INFO] [stdout]    |   ^^^^^^^ use of undeclared type or module `runtime`
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stdout]  --> src/timer/ext.rs:30:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_await)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `timeout` found for type `impl futures_core::future::TryFuture` in the current scope
[INFO] [stdout]   --> src/timer/ext.rs:42:28
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let timed_out = future.timeout(Duration::from_secs(1));
[INFO] [stdout]    |                            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 3  | use wasm_timer::timer::ext::TryFutureExt;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl core::future::future::Future`
[INFO] [stdout]   --> src/timer/ext.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | async fn main() {
[INFO] [stdout]    |                 ^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432, E0433, E0554, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/timer/ext.rs - timer::ext::TryFutureExt::timeout (line 29)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "5a9aaf78b755e36795fea32fba41d750e4dfdea3da2faf744ce5957e181bd423"`
[INFO] running `"docker" "rm" "-f" "5a9aaf78b755e36795fea32fba41d750e4dfdea3da2faf744ce5957e181bd423"`
[INFO] [stdout] 5a9aaf78b755e36795fea32fba41d750e4dfdea3da2faf744ce5957e181bd423