[INFO] crate nonblocking_socket 0.0.2 is already in cache
[INFO] checking nonblocking_socket-0.0.2 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate nonblocking_socket 0.0.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate nonblocking_socket 0.0.2 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nonblocking_socket 0.0.2
[INFO] finished tweaking crates.io crate nonblocking_socket 0.0.2
[INFO] tweaked toml for crates.io crate nonblocking_socket 0.0.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 26c8c1d0e731a52a9faa5c604db3c5a955f4339120403eb26fddbb3d0c3f523f
[INFO] running `"docker" "start" "-a" "26c8c1d0e731a52a9faa5c604db3c5a955f4339120403eb26fddbb3d0c3f523f"`
[INFO] [stderr]     Checking nonblocking_socket v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:65:3
[INFO] [stderr]    |
[INFO] [stderr] 65 |         try!(set_blocking(fd, blocking));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:92:6
[INFO] [stderr]    |
[INFO] [stderr] 92 |         if try!(self.pending()) > 0 || self.blocking {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:120:62
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let client = TcpStream::connect("127.0.0.1:34254").unwrap();;
[INFO] [stderr]     |                                                                 ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:65:3
[INFO] [stderr]    |
[INFO] [stderr] 65 |         try!(set_blocking(fd, blocking));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:92:6
[INFO] [stderr]    |
[INFO] [stderr] 92 |         if try!(self.pending()) > 0 || self.blocking {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "26c8c1d0e731a52a9faa5c604db3c5a955f4339120403eb26fddbb3d0c3f523f"`
[INFO] running `"docker" "rm" "-f" "26c8c1d0e731a52a9faa5c604db3c5a955f4339120403eb26fddbb3d0c3f523f"`
[INFO] [stdout] 26c8c1d0e731a52a9faa5c604db3c5a955f4339120403eb26fddbb3d0c3f523f