[INFO] updating cached repository https://github.com/szagi3891/warp
[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] ddb065f9c7837961a3c2c9ebb2c960b2a1dfe294
[INFO] checking szagi3891/warp against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszagi3891%2Fwarp" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/szagi3891/warp on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/szagi3891/warp
[INFO] finished tweaking git repo https://github.com/szagi3891/warp
[INFO] tweaked toml for git repo https://github.com/szagi3891/warp written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/szagi3891/warp already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] e661946f92c279304d0a32c97d1c135d635672aa92fc16141e01d330db4f4a1e
[INFO] running `"docker" "start" "-a" "e661946f92c279304d0a32c97d1c135d635672aa92fc16141e01d330db4f4a1e"`
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tungstenite v0.10.1
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking warp v0.2.2
[INFO] [stderr]     Checking wrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:65:29
[INFO] [stderr]    |
[INFO] [stderr] 65 | ...                   tx.send(Ok(Message::text(aa)));
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:65:29
[INFO] [stderr]    |
[INFO] [stderr] 65 | ...                   tx.send(Ok(Message::text(aa)));
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.33s
[INFO] running `"docker" "inspect" "e661946f92c279304d0a32c97d1c135d635672aa92fc16141e01d330db4f4a1e"`
[INFO] running `"docker" "rm" "-f" "e661946f92c279304d0a32c97d1c135d635672aa92fc16141e01d330db4f4a1e"`
[INFO] [stdout] e661946f92c279304d0a32c97d1c135d635672aa92fc16141e01d330db4f4a1e