[INFO] fetching crate futures-await 0.1.1...
[INFO] checking futures-await-0.1.1 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate futures-await 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate futures-await 0.1.1 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate futures-await 0.1.1
[INFO] finished tweaking crates.io crate futures-await 0.1.1
[INFO] tweaked toml for crates.io crate futures-await 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6d6ad34ef0d6379ea30f8aebda2531d40e33cfa6f3382e51014cb452878d8751
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6d6ad34ef0d6379ea30f8aebda2531d40e33cfa6f3382e51014cb452878d8751"`
[INFO] [stderr]     Checking futures-await-await-macro v0.1.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling futures-await-async-macro v0.1.4
[INFO] [stderr]     Checking futures-await v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: ambiguous associated item
[INFO] [stderr]    --> src/lib.rs:76:40
[INFO] [stderr]     |
[INFO] [stderr] 76  |         fn into_result(self) -> Result<Self::Ok, Self::Err> { self }
[INFO] [stderr]     |                                        ^^^^^^^^ help: use fully-qualified syntax: `<std::result::Result<T, E> as IsResult>::Ok`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[deny(ambiguous_associated_items)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Ok` could refer to variant defined here
[INFO] [stderr] note: `Ok` could also refer to associated type defined here
[INFO] [stderr]    --> src/lib.rs:67:9
[INFO] [stderr]     |
[INFO] [stderr] 67  |         type Ok;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous associated item
[INFO] [stderr]    --> src/lib.rs:76:50
[INFO] [stderr]     |
[INFO] [stderr] 76  |         fn into_result(self) -> Result<Self::Ok, Self::Err> { self }
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use fully-qualified syntax: `<std::result::Result<T, E> as IsResult>::Err`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Err` could refer to variant defined here
[INFO] [stderr] note: `Err` could also refer to associated type defined here
[INFO] [stderr]    --> src/lib.rs:68:9
[INFO] [stderr]     |
[INFO] [stderr] 68  |         type Err;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `futures-await`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: ambiguous associated item
[INFO] [stderr]    --> src/lib.rs:76:40
[INFO] [stderr]     |
[INFO] [stderr] 76  |         fn into_result(self) -> Result<Self::Ok, Self::Err> { self }
[INFO] [stderr]     |                                        ^^^^^^^^ help: use fully-qualified syntax: `<std::result::Result<T, E> as IsResult>::Ok`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[deny(ambiguous_associated_items)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Ok` could refer to variant defined here
[INFO] [stderr] note: `Ok` could also refer to associated type defined here
[INFO] [stderr]    --> src/lib.rs:67:9
[INFO] [stderr]     |
[INFO] [stderr] 67  |         type Ok;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: ambiguous associated item
[INFO] [stderr]    --> src/lib.rs:76:50
[INFO] [stderr]     |
[INFO] [stderr] 76  |         fn into_result(self) -> Result<Self::Ok, Self::Err> { self }
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use fully-qualified syntax: `<std::result::Result<T, E> as IsResult>::Err`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Err` could refer to variant defined here
[INFO] [stderr] note: `Err` could also refer to associated type defined here
[INFO] [stderr]    --> src/lib.rs:68:9
[INFO] [stderr]     |
[INFO] [stderr] 68  |         type Err;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `futures-await`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6d6ad34ef0d6379ea30f8aebda2531d40e33cfa6f3382e51014cb452878d8751"`
[INFO] running `"docker" "rm" "-f" "6d6ad34ef0d6379ea30f8aebda2531d40e33cfa6f3382e51014cb452878d8751"`
[INFO] [stdout] 6d6ad34ef0d6379ea30f8aebda2531d40e33cfa6f3382e51014cb452878d8751