[INFO] crate tracing-gelf 0.2.1 is already in cache
[INFO] checking tracing-gelf-0.2.1 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate tracing-gelf 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate tracing-gelf 0.2.1 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tracing-gelf 0.2.1
[INFO] finished tweaking crates.io crate tracing-gelf 0.2.1
[INFO] tweaked toml for crates.io crate tracing-gelf 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate tracing-gelf 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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-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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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] 2cdc178abf7dabe7ac7dfcffef8bde4a73a2d5c6a6c2018759c20d4d1a78ac5d
[INFO] running `"docker" "start" "-a" "2cdc178abf7dabe7ac7dfcffef8bde4a73a2d5c6a6c2018759c20d4d1a78ac5d"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking tracing-core v0.1.8
[INFO] [stderr]     Checking hostname v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking tracing-serde v0.1.0
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.6
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking tracing v0.1.11
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tracing-gelf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:231:17
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 sink.send_all(&mut ok_receiver).await;
[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/lib.rs:314:17
[INFO] [stderr]     |
[INFO] [stderr] 314 |                 sink.send_all(&mut ok_receiver).await;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/lib.rs:231:17
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 sink.send_all(&mut ok_receiver).await;
[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/lib.rs:433:9
[INFO] [stderr]     |
[INFO] [stderr] 433 |         self.sender.clone().try_send(Bytes::from(raw));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/lib.rs:314:17
[INFO] [stderr]     |
[INFO] [stderr] 314 |                 sink.send_all(&mut ok_receiver).await;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/lib.rs:433:9
[INFO] [stderr]     |
[INFO] [stderr] 433 |         self.sender.clone().try_send(Bytes::from(raw));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.79s
[INFO] running `"docker" "inspect" "2cdc178abf7dabe7ac7dfcffef8bde4a73a2d5c6a6c2018759c20d4d1a78ac5d"`
[INFO] running `"docker" "rm" "-f" "2cdc178abf7dabe7ac7dfcffef8bde4a73a2d5c6a6c2018759c20d4d1a78ac5d"`
[INFO] [stdout] 2cdc178abf7dabe7ac7dfcffef8bde4a73a2d5c6a6c2018759c20d4d1a78ac5d