[INFO] crate tun-tap 0.1.2 is already in cache
[INFO] checking tun-tap-0.1.2 against try#7cb06892a23b4da510686618c8730f0b2e8bd952 for pr-66963
[INFO] extracting crate tun-tap 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tun-tap 0.1.2 on toolchain 7cb06892a23b4da510686618c8730f0b2e8bd952
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tun-tap 0.1.2
[INFO] finished tweaking crates.io crate tun-tap 0.1.2
[INFO] tweaked toml for crates.io crate tun-tap 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "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" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "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] ef986c7a7451a15b8e3b1151368810accf1f6ce9cda010ba5d36576f90e33683
[INFO] running `"docker" "start" "-a" "ef986c7a7451a15b8e3b1151368810accf1f6ce9cda010ba5d36576f90e33683"`
[INFO] [stderr]    Compiling tun-tap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr] warning: unused `futures::stream::Map` in tuple element 0 that must be used
[INFO] [stderr]   --> examples/tokio.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     core.run(reader.join(writer)).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]     Finished dev [unoptimized + debuginfo] target(s) in 7.85s
[INFO] running `"docker" "inspect" "ef986c7a7451a15b8e3b1151368810accf1f6ce9cda010ba5d36576f90e33683"`
[INFO] running `"docker" "rm" "-f" "ef986c7a7451a15b8e3b1151368810accf1f6ce9cda010ba5d36576f90e33683"`
[INFO] [stdout] ef986c7a7451a15b8e3b1151368810accf1f6ce9cda010ba5d36576f90e33683