[INFO] fetching crate tokio-stdin 0.1.2...
[INFO] testing tokio-stdin-0.1.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate tokio-stdin 0.1.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate tokio-stdin 0.1.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbf4cd162545d52e81bb512666b21964c858fdfc0bd625ca3a7d7225c7fe0a37
[INFO] running `Command { std: "docker" "start" "-a" "fbf4cd162545d52e81bb512666b21964c858fdfc0bd625ca3a7d7225c7fe0a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbf4cd162545d52e81bb512666b21964c858fdfc0bd625ca3a7d7225c7fe0a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf4cd162545d52e81bb512666b21964c858fdfc0bd625ca3a7d7225c7fe0a37", kill_on_drop: false }`
[INFO] [stdout] fbf4cd162545d52e81bb512666b21964c858fdfc0bd625ca3a7d7225c7fe0a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e443042111c4f6172d4660469c4068a16a4e04b1329dc15bf0eeccf858901fa6
[INFO] running `Command { std: "docker" "start" "-a" "e443042111c4f6172d4660469c4068a16a4e04b1329dc15bf0eeccf858901fa6", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-stdin v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stdout]   --> src/lib.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | /         iter(stdin_lock.bytes())
[INFO] [stdout] 56 | |             .map_err(Error::Stdin)
[INFO] [stdout] 57 | |             .forward(stdin_sink)
[INFO] [stdout] 58 | |             .wait()
[INFO] [stdout] 59 | |             .unwrap();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_must_use)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused `SinkMapErr` in tuple element 1 that must be used
[INFO] [stdout]   --> src/lib.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | /         iter(stdin_lock.bytes())
[INFO] [stdout] 56 | |             .map_err(Error::Stdin)
[INFO] [stdout] 57 | |             .forward(stdin_sink)
[INFO] [stdout] 58 | |             .wait()
[INFO] [stdout] 59 | |             .unwrap();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: sinks do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused `futures::stream::MapErr` in tuple element 0 that must be used
[INFO] [stdout]   --> src/lib.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | /         iter(stdin_lock.bytes())
[INFO] [stdout] 74 | |             .map_err(Error::Stdin)
[INFO] [stdout] 75 | |             .forward(stdin_sink)
[INFO] [stdout] 76 | |             .wait()
[INFO] [stdout] 77 | |             .unwrap();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: streams do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused `SinkMapErr` in tuple element 1 that must be used
[INFO] [stdout]   --> src/lib.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 | /         iter(stdin_lock.bytes())
[INFO] [stdout] 74 | |             .map_err(Error::Stdin)
[INFO] [stdout] 75 | |             .forward(stdin_sink)
[INFO] [stdout] 76 | |             .wait()
[INFO] [stdout] 77 | |             .unwrap();
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: sinks do nothing unless polled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-stdin`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e443042111c4f6172d4660469c4068a16a4e04b1329dc15bf0eeccf858901fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e443042111c4f6172d4660469c4068a16a4e04b1329dc15bf0eeccf858901fa6", kill_on_drop: false }`
[INFO] [stdout] e443042111c4f6172d4660469c4068a16a4e04b1329dc15bf0eeccf858901fa6