[INFO] crate want 0.3.0 is already in cache
[INFO] checking want-0.3.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate want 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate want 0.3.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate want 0.3.0
[INFO] finished tweaking crates.io crate want 0.3.0
[INFO] tweaked toml for crates.io crate want 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7808c947f15f8333ba5304752094a2ef1cd3f0370d10244cf7f3a14fff0c380b
[INFO] running `"docker" "start" "-a" "7808c947f15f8333ba5304752094a2ef1cd3f0370d10244cf7f3a14fff0c380b"`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking want v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.6
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]   --> benches/throughput.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |         assert!(gv.poll_want().unwrap().is_ready());
[INFO] [stderr]    |                    ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `unwrap` found for enum `std::task::Poll<std::result::Result<(), want::Closed>>` in the current scope
[INFO] [stderr]   --> benches/throughput.rs:12:32
[INFO] [stderr]    |
[INFO] [stderr] 12 |         assert!(gv.poll_want().unwrap().is_ready());
[INFO] [stderr]    |                                ^^^^^^ method not found in `std::task::Poll<std::result::Result<(), want::Closed>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `want`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7808c947f15f8333ba5304752094a2ef1cd3f0370d10244cf7f3a14fff0c380b"`
[INFO] running `"docker" "rm" "-f" "7808c947f15f8333ba5304752094a2ef1cd3f0370d10244cf7f3a14fff0c380b"`
[INFO] [stdout] 7808c947f15f8333ba5304752094a2ef1cd3f0370d10244cf7f3a14fff0c380b