[INFO] fetching crate net2 0.2.39...
[INFO] checking net2-0.2.39 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate net2 0.2.39 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate net2 0.2.39 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate net2 0.2.39
[INFO] finished tweaking crates.io crate net2 0.2.39
[INFO] tweaked toml for crates.io crate net2 0.2.39 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1e64128dabfd7b30e6487588d867edecda17556e10f08fc028aadcb0baa907d
[INFO] running `Command { std: "docker" "start" "-a" "d1e64128dabfd7b30e6487588d867edecda17556e10f08fc028aadcb0baa907d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1e64128dabfd7b30e6487588d867edecda17556e10f08fc028aadcb0baa907d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1e64128dabfd7b30e6487588d867edecda17556e10f08fc028aadcb0baa907d", kill_on_drop: false }`
[INFO] [stdout] d1e64128dabfd7b30e6487588d867edecda17556e10f08fc028aadcb0baa907d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f474cf62c1542c77015abe864c4a3049ee2c95804ff7a253e645acfd33be6a8
[INFO] running `Command { std: "docker" "start" "-a" "3f474cf62c1542c77015abe864c4a3049ee2c95804ff7a253e645acfd33be6a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking net2 v0.2.39 (/opt/rustwide/workdir)
[INFO] [stdout] error: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | use libc::{self, c_int};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:49:39
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[cfg(any(target_os = "wasi", unix))] extern crate libc;
[INFO] [stdout]    |                                       ------------------ the item `libc` is already imported here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | use libc::{self, c_int};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:49:39
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[cfg(any(target_os = "wasi", unix))] extern crate libc;
[INFO] [stdout]    |                                       ------------------ the item `libc` is already imported here
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait `Zero` is never used
[INFO] [stdout]   --> src/utils.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait Zero {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait `Zero` is never used
[INFO] [stdout]   --> src/utils.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait Zero {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `net2` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `net2` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "3f474cf62c1542c77015abe864c4a3049ee2c95804ff7a253e645acfd33be6a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f474cf62c1542c77015abe864c4a3049ee2c95804ff7a253e645acfd33be6a8", kill_on_drop: false }`
[INFO] [stdout] 3f474cf62c1542c77015abe864c4a3049ee2c95804ff7a253e645acfd33be6a8