[INFO] fetching crate igcp 0.1.6...
[INFO] checking igcp-0.1.6 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate igcp 0.1.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate igcp 0.1.6
[INFO] finished tweaking crates.io crate igcp 0.1.6
[INFO] tweaked toml for crates.io crate igcp 0.1.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate igcp 0.1.6 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 221 packages to latest compatible versions
[INFO] [stderr]       Adding async-tungstenite v0.16.1 (available: v0.34.1)
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[INFO] [stderr]       Adding getrandom v0.2.17 (available: v0.4.2)
[INFO] [stderr]       Adding postcard v0.7.3 (available: v1.1.3)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding reqwasm v0.4.1 (available: v0.5.0)
[INFO] [stderr]       Adding snow v0.8.0 (available: v0.10.0)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.23.1)
[INFO] [stderr]       Adding zeroize v1.3.0 (available: v1.8.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05ce1b6f04fc668d54c53638035aa574bd8c923856d708784d30e6a7a3403128
[INFO] running `Command { std: "docker" "start" "-a" "05ce1b6f04fc668d54c53638035aa574bd8c923856d708784d30e6a7a3403128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05ce1b6f04fc668d54c53638035aa574bd8c923856d708784d30e6a7a3403128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ce1b6f04fc668d54c53638035aa574bd8c923856d708784d30e6a7a3403128", kill_on_drop: false }`
[INFO] [stdout] 05ce1b6f04fc668d54c53638035aa574bd8c923856d708784d30e6a7a3403128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f02580c0dfcc8ce019b3133af15d82be0749363bd20c059a48b83afc39c361aa
[INFO] running `Command { std: "docker" "start" "-a" "f02580c0dfcc8ce019b3133af15d82be0749363bd20c059a48b83afc39c361aa", kill_on_drop: false }`
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[INFO] [stderr]     Checking igcp v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TcpListener`
[INFO] [stdout]  --> src/io.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use async_std::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnixListener`
[INFO] [stdout]   --> src/io.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use async_std::os::unix::net::{UnixListener, UnixStream};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpListener`
[INFO] [stdout]  --> src/io.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use async_std::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnixListener`
[INFO] [stdout]   --> src/io.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use async_std::os::unix::net::{UnixListener, UnixStream};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `igcp` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Tx` is never constructed
[INFO] [stdout]    --> src/type_iter.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub struct Tx<T>(T);
[INFO] [stdout]     |            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Rx` is never constructed
[INFO] [stdout]    --> src/type_iter.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct Rx<T>(T);
[INFO] [stdout]     |            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Tx` is never constructed
[INFO] [stdout]    --> src/type_iter.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub struct Tx<T>(T);
[INFO] [stdout]     |            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Rx` is never constructed
[INFO] [stdout]    --> src/type_iter.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct Rx<T>(T);
[INFO] [stdout]     |            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `igcp` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f02580c0dfcc8ce019b3133af15d82be0749363bd20c059a48b83afc39c361aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02580c0dfcc8ce019b3133af15d82be0749363bd20c059a48b83afc39c361aa", kill_on_drop: false }`
[INFO] [stdout] f02580c0dfcc8ce019b3133af15d82be0749363bd20c059a48b83afc39c361aa
