[INFO] crate tokio-stdin 0.1.2 is already in cache
[INFO] checking tokio-stdin-0.1.2 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate tokio-stdin 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tokio-stdin 0.1.2 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tokio-stdin 0.1.2
[INFO] finished tweaking crates.io crate tokio-stdin 0.1.2
[INFO] tweaked toml for crates.io crate tokio-stdin 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] be68780c2db4e691f330fd0c4f5097aebc58819b00b244806dc58e119b01c165
[INFO] running `"docker" "start" "-a" "be68780c2db4e691f330fd0c4f5097aebc58819b00b244806dc58e119b01c165"`
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking tokio-stdin v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stderr]   --> src/lib.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         iter(stdin_lock.bytes())
[INFO] [stderr] 56 | |             .map_err(Error::Stdin)
[INFO] [stderr] 57 | |             .forward(stdin_sink)
[INFO] [stderr] 58 | |             .wait()
[INFO] [stderr] 59 | |             .unwrap();
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(unused_must_use)]` implied by `#[deny(warnings)]`
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] error: unused `futures::sink::SinkMapErr` in tuple element 1 that must be used
[INFO] [stderr]   --> src/lib.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         iter(stdin_lock.bytes())
[INFO] [stderr] 56 | |             .map_err(Error::Stdin)
[INFO] [stderr] 57 | |             .forward(stdin_sink)
[INFO] [stderr] 58 | |             .wait()
[INFO] [stderr] 59 | |             .unwrap();
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: sinks do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] error: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stderr]   --> src/lib.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 | /         iter(stdin_lock.bytes())
[INFO] [stderr] 74 | |             .map_err(Error::Stdin)
[INFO] [stderr] 75 | |             .forward(stdin_sink)
[INFO] [stderr] 76 | |             .wait()
[INFO] [stderr] 77 | |             .unwrap();
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] error: unused `futures::sink::SinkMapErr` in tuple element 1 that must be used
[INFO] [stderr]   --> src/lib.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 | /         iter(stdin_lock.bytes())
[INFO] [stderr] 74 | |             .map_err(Error::Stdin)
[INFO] [stderr] 75 | |             .forward(stdin_sink)
[INFO] [stderr] 76 | |             .wait()
[INFO] [stderr] 77 | |             .unwrap();
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: sinks do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `tokio-stdin`.
[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" "be68780c2db4e691f330fd0c4f5097aebc58819b00b244806dc58e119b01c165"`
[INFO] running `"docker" "rm" "-f" "be68780c2db4e691f330fd0c4f5097aebc58819b00b244806dc58e119b01c165"`
[INFO] [stdout] be68780c2db4e691f330fd0c4f5097aebc58819b00b244806dc58e119b01c165