[INFO] fetching crate nc 0.6.1... [INFO] checking nc-0.6.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174 [INFO] extracting crate nc 0.6.1 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate nc 0.6.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate nc 0.6.1 [INFO] finished tweaking crates.io crate nc 0.6.1 [INFO] tweaked toml for crates.io crate nc 0.6.1 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate crates.io crate nc 0.6.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9b7c4757728bc6937263c6323a4a0d9e5c06d1be01de22a4bf98a216f41f18ac [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9b7c4757728bc6937263c6323a4a0d9e5c06d1be01de22a4bf98a216f41f18ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9b7c4757728bc6937263c6323a4a0d9e5c06d1be01de22a4bf98a216f41f18ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b7c4757728bc6937263c6323a4a0d9e5c06d1be01de22a4bf98a216f41f18ac", kill_on_drop: false }` [INFO] [stdout] 9b7c4757728bc6937263c6323a4a0d9e5c06d1be01de22a4bf98a216f41f18ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bca9c26c1aa0982ae957c82d5bddd34d21ed43604d9b38e2cea39a0bad27c43c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "bca9c26c1aa0982ae957c82d5bddd34d21ed43604d9b38e2cea39a0bad27c43c", kill_on_drop: false }` [INFO] [stderr] Compiling nc v0.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `signum` [INFO] [stdout] --> examples/timer.rs:10:17 [INFO] [stdout] | [INFO] [stdout] 10 | fn handle_alarm(signum: i32) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_signum` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> examples/socket.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 27 | / loop { [INFO] [stdout] 28 | | let mut conn_addr = nc::sockaddr_in_t::default(); [INFO] [stdout] 29 | | let mut conn_addr_len: nc::socklen_t = 0; [INFO] [stdout] 30 | | let conn_fd = nc::accept(listen_fd, &mut conn_addr, &mut conn_addr_len)?; [INFO] [stdout] 31 | | println!("conn_fd: {:?}", conn_fd); [INFO] [stdout] 32 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 33 | [INFO] [stdout] 34 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.23s [INFO] running `Command { std: "docker" "inspect" "bca9c26c1aa0982ae957c82d5bddd34d21ed43604d9b38e2cea39a0bad27c43c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bca9c26c1aa0982ae957c82d5bddd34d21ed43604d9b38e2cea39a0bad27c43c", kill_on_drop: false }` [INFO] [stdout] bca9c26c1aa0982ae957c82d5bddd34d21ed43604d9b38e2cea39a0bad27c43c