[INFO] crate nc 0.4.8 is already in cache
[INFO] checking nc-0.4.8 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate nc 0.4.8 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nc 0.4.8 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nc 0.4.8
[INFO] finished tweaking crates.io crate nc 0.4.8
[INFO] tweaked toml for crates.io crate nc 0.4.8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate nc 0.4.8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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] f4a857c9545d313458fb34ce51d9bbc65b77aa93d18715b1f5031cef130ce153
[INFO] running `"docker" "start" "-a" "f4a857c9545d313458fb34ce51d9bbc65b77aa93d18715b1f5031cef130ce153"`
[INFO] [stderr]    Compiling nc v0.4.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stderr]   --> examples/open.rs:29:11
[INFO] [stderr]    |
[INFO] [stderr] 29 |     match nc::write(fd, msg.as_bytes()) {
[INFO] [stderr]    |           ^^^^^^^^^ --  -------------- supplied 2 arguments
[INFO] [stderr]    |           |
[INFO] [stderr]    |           expected 3 arguments
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `nc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> examples/socket.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | /     loop {
[INFO] [stderr] 24 | |         let mut conn_addr = nc::sockaddr_in_t::default();
[INFO] [stderr] 25 | |         let mut conn_addr_len: nc::socklen_t = 0;
[INFO] [stderr] 26 | |         let conn_fd = nc::accept(listen_fd, &mut conn_addr, &mut conn_addr_len)?;
[INFO] [stderr] 27 | |         println!("conn_fd: {:?}", conn_fd);
[INFO] [stderr] 28 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 29 | 
[INFO] [stderr] 30 |       return Ok(());
[INFO] [stderr]    |       ^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f4a857c9545d313458fb34ce51d9bbc65b77aa93d18715b1f5031cef130ce153"`
[INFO] running `"docker" "rm" "-f" "f4a857c9545d313458fb34ce51d9bbc65b77aa93d18715b1f5031cef130ce153"`
[INFO] [stdout] f4a857c9545d313458fb34ce51d9bbc65b77aa93d18715b1f5031cef130ce153