[INFO] updating cached repository casey/tokio-by-hand
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/casey/tokio-by-hand
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/casey/tokio-by-hand" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/casey/tokio-by-hand"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/casey/tokio-by-hand'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/casey/tokio-by-hand" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/casey/tokio-by-hand"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/casey/tokio-by-hand'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d1ae672f1b508cb3383127cca10208f085bad42e
[INFO] sha for GitHub repo casey/tokio-by-hand: d1ae672f1b508cb3383127cca10208f085bad42e
[INFO] validating manifest of casey/tokio-by-hand on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of casey/tokio-by-hand on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing casey/tokio-by-hand
[INFO] finished frobbing casey/tokio-by-hand
[INFO] frobbed toml for casey/tokio-by-hand written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/casey/tokio-by-hand/Cargo.toml
[INFO] started frobbing casey/tokio-by-hand
[INFO] finished frobbing casey/tokio-by-hand
[INFO] frobbed toml for casey/tokio-by-hand written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/casey/tokio-by-hand/Cargo.toml
[INFO] crate casey/tokio-by-hand already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking casey/tokio-by-hand against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-0/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/casey/tokio-by-hand:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 10943fe7391e7e72e263415daf80b33f396e3346a06bdefec0cc7913c87bf5aa
[INFO] running `"docker" "start" "-a" "10943fe7391e7e72e263415daf80b33f396e3346a06bdefec0cc7913c87bf5aa"`
[INFO] [stderr]     Checking tokio-by-hand v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]   --> src/standard/instant_series.rs:91:7
[INFO] [stderr]    |
[INFO] [stderr] 91 |       producer.forward(consumer).wait().unwrap();
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]   --> src/standard/delayed_series.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]   --> src/standard/delayed_series.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]    --> src/standard/delayed_series.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]   --> src/standard/buffered.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]    --> src/extended/instant_series.rs:115:7
[INFO] [stderr]     |
[INFO] [stderr] 115 |       producer.forward(consumer).wait().unwrap();
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]   --> src/extended/delayed_series.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]    --> src/extended/delayed_series.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]    --> src/extended/delayed_series.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Take` in tuple element 0 that must be used
[INFO] [stderr]   --> src/extended/buffered.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     core.run(producer.forward(consumer)).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `futures::stream::Map` in tuple element 0 that must be used
[INFO] [stderr]    --> src/extended/adapter.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 | /     stream
[INFO] [stderr] 131 | |       .take(7)
[INFO] [stderr] 132 | |       .inspect(|x| println!("from stream: {:?}", x))
[INFO] [stderr] 133 | |       .map(|x| Outgoing(x.0))
[INFO] [stderr] 134 | |       .forward(sink).wait().unwrap();
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `"docker" "inspect" "10943fe7391e7e72e263415daf80b33f396e3346a06bdefec0cc7913c87bf5aa"`
[INFO] running `"docker" "rm" "-f" "10943fe7391e7e72e263415daf80b33f396e3346a06bdefec0cc7913c87bf5aa"`
[INFO] [stdout] 10943fe7391e7e72e263415daf80b33f396e3346a06bdefec0cc7913c87bf5aa