[INFO] fetching crate async-trait 0.1.5...
[INFO] extracting crate async-trait 0.1.5 into work/ex/beta-1.37-6/sources/1.36.0/reg/async-trait/0.1.5
[INFO] extracting crate async-trait 0.1.5 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/async-trait/0.1.5
[INFO] validating manifest of async-trait-0.1.5 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 async-trait-0.1.5 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 async-trait-0.1.5
[INFO] finished frobbing async-trait-0.1.5
[INFO] frobbed toml for async-trait-0.1.5 written to work/ex/beta-1.37-6/sources/1.36.0/reg/async-trait/0.1.5/Cargo.toml
[INFO] started frobbing async-trait-0.1.5
[INFO] finished frobbing async-trait-0.1.5
[INFO] frobbed toml for async-trait-0.1.5 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/async-trait/0.1.5/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 async-trait-0.1.5 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/async-trait/0.1.5:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 10b9215971ff318c9f506168ed667a7dff2b9c28afa7e044e5781d6cb766e340
[INFO] running `"docker" "start" "-a" "10b9215971ff318c9f506168ed667a7dff2b9c28afa7e044e5781d6cb766e340"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling async-trait v0.1.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.54s
[INFO] running `"docker" "inspect" "10b9215971ff318c9f506168ed667a7dff2b9c28afa7e044e5781d6cb766e340"`
[INFO] running `"docker" "rm" "-f" "10b9215971ff318c9f506168ed667a7dff2b9c28afa7e044e5781d6cb766e340"`
[INFO] [stdout] 10b9215971ff318c9f506168ed667a7dff2b9c28afa7e044e5781d6cb766e340
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/async-trait/0.1.5:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 49f090943a68e6af441c1ebd4b67e0fe5151963adaaf3a1e5fd8052e55e19ccc
[INFO] running `"docker" "start" "-a" "49f090943a68e6af441c1ebd4b67e0fe5151963adaaf3a1e5fd8052e55e19ccc"`
[INFO] [stderr]    Compiling async-trait v0.1.5 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> tests/test.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(async_await)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:15:29
[INFO] [stderr]    |
[INFO] [stderr] 15 |     async fn selfref(&self) {}
[INFO] [stderr]    |                             ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:17:33
[INFO] [stderr]    |
[INFO] [stderr] 17 |     async fn selfmut(&mut self) {}
[INFO] [stderr]    |                                 ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:21:40
[INFO] [stderr]    |
[INFO] [stderr] 21 |     async fn elided_lifetime(_x: &str) {}
[INFO] [stderr]    |                                        ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:23:49
[INFO] [stderr]    |
[INFO] [stderr] 23 |     async fn explicit_lifetime<'a>(_x: &'a str) {}
[INFO] [stderr]    |                                                 ^ neither `'a` nor `'async_trait` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:29:27
[INFO] [stderr]    |
[INFO] [stderr] 29 |     async fn calls(&self) {
[INFO] [stderr]    |                           ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:35:35
[INFO] [stderr]    |
[INFO] [stderr] 35 |     async fn calls_mut(&mut self) {
[INFO] [stderr]    |                                   ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:48:29
[INFO] [stderr]    |
[INFO] [stderr] 48 |     async fn selfref(&self) {}
[INFO] [stderr]    |                             ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:50:33
[INFO] [stderr]    |
[INFO] [stderr] 50 |     async fn selfmut(&mut self) {}
[INFO] [stderr]    |                                 ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error[E0271]: type mismatch resolving `<impl std::future::Future as std::future::Future>::Output == <Struct as Trait>::Assoc`
[INFO] [stderr]   --> tests/test.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | #[async_trait]
[INFO] [stderr]    | ^^^^^^^^^^^^^^ expected (), found associated type
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `()`
[INFO] [stderr]               found type `<Struct as Trait>::Assoc`
[INFO] [stderr]    = note: the return type of a function must have a statically known size
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |     async fn elided_lifetime(_x: &str) {}
[INFO] [stderr]    |                                        ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:56:49
[INFO] [stderr]    |
[INFO] [stderr] 56 |     async fn explicit_lifetime<'a>(_x: &'a str) {}
[INFO] [stderr]    |                                                 ^ neither `'a` nor `'async_trait` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:62:27
[INFO] [stderr]    |
[INFO] [stderr] 62 |     async fn calls(&self) {
[INFO] [stderr]    |                           ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:68:35
[INFO] [stderr]    |
[INFO] [stderr] 68 |     async fn calls_mut(&mut self) {
[INFO] [stderr]    |                                   ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]   --> tests/test.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |         async fn f(&self) {}
[INFO] [stderr]    |                           ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]    |
[INFO] [stderr]    = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]    = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]    --> tests/test.rs:107:27
[INFO] [stderr]     |
[INFO] [stderr] 107 |         async fn f(&self) {}
[INFO] [stderr]     |                           ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]     |
[INFO] [stderr]     = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]     = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]    --> tests/test.rs:112:27
[INFO] [stderr]     |
[INFO] [stderr] 112 |         async fn f(&self) {}
[INFO] [stderr]     |                           ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]     |
[INFO] [stderr]     = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]     = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous lifetime bound in `async fn`
[INFO] [stderr]    --> tests/test.rs:130:30
[INFO] [stderr]     |
[INFO] [stderr] 130 |         async fn f<U>(&self) {}
[INFO] [stderr]     |                              ^ neither `'async_trait` nor `'_` outlives the other
[INFO] [stderr]     |
[INFO] [stderr]     = note: multiple unrelated lifetimes are not allowed in `async fn`.
[INFO] [stderr]     = note: if you're using argument-position elided lifetimes, consider switching to a single named lifetime.
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0271, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0271`.
[INFO] [stderr] error: Could not compile `async-trait`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "49f090943a68e6af441c1ebd4b67e0fe5151963adaaf3a1e5fd8052e55e19ccc"`
[INFO] running `"docker" "rm" "-f" "49f090943a68e6af441c1ebd4b67e0fe5151963adaaf3a1e5fd8052e55e19ccc"`
[INFO] [stdout] 49f090943a68e6af441c1ebd4b67e0fe5151963adaaf3a1e5fd8052e55e19ccc