[INFO] fetching crate wasm-sockets 0.2.1...
[INFO] testing wasm-sockets-0.2.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate wasm-sockets 0.2.1 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate wasm-sockets 0.2.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-66/source/.cargo/config
[INFO] started tweaking crates.io crate wasm-sockets 0.2.1
[INFO] finished tweaking crates.io crate wasm-sockets 0.2.1
[INFO] tweaked toml for crates.io crate wasm-sockets 0.2.1 written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] crate crates.io crate wasm-sockets 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaa1866c66363b9860786b88249ce6018a6825b60349654da8615840a4d91f50
[INFO] running `Command { std: "docker" "start" "-a" "eaa1866c66363b9860786b88249ce6018a6825b60349654da8615840a4d91f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaa1866c66363b9860786b88249ce6018a6825b60349654da8615840a4d91f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaa1866c66363b9860786b88249ce6018a6825b60349654da8615840a4d91f50", kill_on_drop: false }`
[INFO] [stdout] eaa1866c66363b9860786b88249ce6018a6825b60349654da8615840a4d91f50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1281455b3cb46187d90f4aff4c1c4d58ac80f2a5faf1f5bc46db0296b5857c37
[INFO] running `Command { std: "docker" "start" "-a" "1281455b3cb46187d90f4aff4c1c4d58ac80f2a5faf1f5bc46db0296b5857c37", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling wasm-sockets v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: wasm-sockets can only compile to WASM targets
[INFO] [stdout]    --> src/lib.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | compile_error!("wasm-sockets can only compile to WASM targets");
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `web_sys`
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 | use web_sys::{ErrorEvent, MessageEvent, WebSocket};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `web_sys`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trace`
[INFO] [stdout]   --> src/lib.rs:89:18
[INFO] [stdout]    |
[INFO] [stdout] 89 | use log::{error, trace};
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/lib.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/lib.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-sockets`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1281455b3cb46187d90f4aff4c1c4d58ac80f2a5faf1f5bc46db0296b5857c37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1281455b3cb46187d90f4aff4c1c4d58ac80f2a5faf1f5bc46db0296b5857c37", kill_on_drop: false }`
[INFO] [stdout] 1281455b3cb46187d90f4aff4c1c4d58ac80f2a5faf1f5bc46db0296b5857c37
