[INFO] fetching crate in_stream 0.0.47-alpha1...
[INFO] checking in_stream-0.0.47-alpha1 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate in_stream 0.0.47-alpha1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate in_stream 0.0.47-alpha1 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate in_stream 0.0.47-alpha1
[INFO] finished tweaking crates.io crate in_stream 0.0.47-alpha1
[INFO] tweaked toml for crates.io crate in_stream 0.0.47-alpha1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] b1dcc116f9b1c260976c0aebe70d00093fe44c06c8fa1f06eda1a95ca7ac465a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b1dcc116f9b1c260976c0aebe70d00093fe44c06c8fa1f06eda1a95ca7ac465a"`
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling shrinkwraprs v0.2.3
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking url2 v0.0.4
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking in_stream v0.0.47-alpha1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/mem.rs:359:9
[INFO] [stderr]     |
[INFO] [stderr] 359 |         { parking_lot::Mutex::new(MemManager::new()) };
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/mem.rs:359:9
[INFO] [stderr]     |
[INFO] [stderr] 359 |         { parking_lot::Mutex::new(MemManager::new()) };
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[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 30.55s
[INFO] running `"docker" "inspect" "b1dcc116f9b1c260976c0aebe70d00093fe44c06c8fa1f06eda1a95ca7ac465a"`
[INFO] running `"docker" "rm" "-f" "b1dcc116f9b1c260976c0aebe70d00093fe44c06c8fa1f06eda1a95ca7ac465a"`
[INFO] [stdout] b1dcc116f9b1c260976c0aebe70d00093fe44c06c8fa1f06eda1a95ca7ac465a