[INFO] crate async-await 0.2.1 is already in cache
[INFO] extracting crate async-await 0.2.1 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/async-await/0.2.1
[INFO] extracting crate async-await 0.2.1 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/async-await/0.2.1
[INFO] validating manifest of async-await-0.2.1 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of async-await-0.2.1 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing async-await-0.2.1
[INFO] finished frobbing async-await-0.2.1
[INFO] frobbed toml for async-await-0.2.1 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/async-await/0.2.1/Cargo.toml
[INFO] started frobbing async-await-0.2.1
[INFO] finished frobbing async-await-0.2.1
[INFO] frobbed toml for async-await-0.2.1 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/async-await/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking async-await-0.2.1 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-5/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/async-await/0.2.1:/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d30790da8d1f7d0ad40a6b5e7aedd4458746566b1587dc6bb37e53243ac5093e
[INFO] running `"docker" "start" "-a" "d30790da8d1f7d0ad40a6b5e7aedd4458746566b1587dc6bb37e53243ac5093e"`
[INFO] [stderr]     Checking async-await v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/lib.rs:47:49
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let transformation = f1.map(|v| v * 2).join((f2.map(|v| v + 5)))
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |     let a = async!{42};
[INFO] [stderr]    |             ---------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     let f1 = async!{42};
[INFO] [stderr]    |              ---------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 |     let f2 = async!{18};
[INFO] [stderr]    |              ---------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |               tx.complete($e);
[INFO] [stderr]    |                  ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |       let f1 = async!{{
[INFO] [stderr]    |  ______________-
[INFO] [stderr] 55 | |         let f1 = async!{42};
[INFO] [stderr] 56 | |         await!{f1.map(|v| v * 2)}
[INFO] [stderr] 57 | |     }};
[INFO] [stderr]    | |______- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |         let f1 = async!{42};
[INFO] [stderr]    |                  ---------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 63 |     let a = async!{42};
[INFO] [stderr]    |             ---------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::Complete::<T>::complete': renamed to `send`
[INFO] [stderr]   --> src/lib.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     let a = async!{panic!("i")};
[INFO] [stderr]    |             ------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             tx.complete($e);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     let a = async!{panic!("i")};
[INFO] [stderr]    |             ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "d30790da8d1f7d0ad40a6b5e7aedd4458746566b1587dc6bb37e53243ac5093e"`
[INFO] running `"docker" "rm" "-f" "d30790da8d1f7d0ad40a6b5e7aedd4458746566b1587dc6bb37e53243ac5093e"`
[INFO] [stdout] d30790da8d1f7d0ad40a6b5e7aedd4458746566b1587dc6bb37e53243ac5093e