[INFO] updating cached repository https://github.com/casey/tokio-by-hand
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d1ae672f1b508cb3383127cca10208f085bad42e
[INFO] checking casey/tokio-by-hand against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcasey%2Ftokio-by-hand" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/casey/tokio-by-hand on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/casey/tokio-by-hand
[INFO] finished tweaking git repo https://github.com/casey/tokio-by-hand
[INFO] tweaked toml for git repo https://github.com/casey/tokio-by-hand written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/casey/tokio-by-hand already has a lockfile, it will not be regenerated
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 4edc5e47e5e6ce923d2504d9ff784ba082ef3744240a5257dae86e550d44ecc2
[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" "4edc5e47e5e6ce923d2504d9ff784ba082ef3744240a5257dae86e550d44ecc2"`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking futures v0.1.16
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.10
[INFO] [stderr]     Checking tokio-io v0.1.3
[INFO] [stderr]     Checking tokio-core v0.1.10
[INFO] [stderr]     Checking tokio-by-hand v0.0.0 (/opt/rustwide/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] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.20s
[INFO] running `"docker" "inspect" "4edc5e47e5e6ce923d2504d9ff784ba082ef3744240a5257dae86e550d44ecc2"`
[INFO] running `"docker" "rm" "-f" "4edc5e47e5e6ce923d2504d9ff784ba082ef3744240a5257dae86e550d44ecc2"`
[INFO] [stdout] 4edc5e47e5e6ce923d2504d9ff784ba082ef3744240a5257dae86e550d44ecc2