[INFO] crate sauron-native 0.1.0 is already in cache
[INFO] checking sauron-native-0.1.0 against try#8c9c32a8d64d42555e366eecb0f0f2f23e15e3db for pr-63831
[INFO] extracting crate sauron-native 0.1.0 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate sauron-native 0.1.0 on toolchain 8c9c32a8d64d42555e366eecb0f0f2f23e15e3db
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sauron-native 0.1.0
[INFO] finished tweaking crates.io crate sauron-native 0.1.0
[INFO] tweaked toml for crates.io crate sauron-native 0.1.0 written to work/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate sauron-native 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] af000d0c5e4b9a4d89d47ab224f88864bcee589a8c9ec00d8a4a0d936b673708
[INFO] running `"docker" "start" "-a" "af000d0c5e4b9a4d89d47ab224f88864bcee589a8c9ec00d8a4a0d936b673708"`
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.48
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling bumpalo v2.5.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling wasm-bindgen v0.2.48
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking futures v0.1.28
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking sauron_vdom v0.10.0
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking sauron-native v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Node`, `Widget`
[INFO] [stderr]  --> src/backend.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{Component, Node, Widget};
[INFO] [stderr]   |                        ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Node`
[INFO] [stderr]  --> src/program.rs:1:42
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{backend::Backend, Component, Node};
[INFO] [stderr]   |                                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefCell`
[INFO] [stderr]  --> src/program.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{cell::RefCell, fmt::Debug, marker::PhantomData, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]  --> src/component.rs:6:28
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn on_event(&mut self, event: Event) {
[INFO] [stderr]   |                            ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/component.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn debug(&mut self, s: String) {
[INFO] [stderr]    |                         ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/program.rs:32:38
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn dispatch(self: &Rc<Self>, msg: MSG) {
[INFO] [stderr]    |                                      ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.48
[INFO] [stderr] warning: the feature `type_alias_enum_variants` has been stable since 1.37.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(type_alias_enum_variants)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: mutable global state in a proc-macro
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-test-macro-0.2.48/src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | static CNT: AtomicUsize = AtomicUsize::new(0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wasm-bindgen-test-macro`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "af000d0c5e4b9a4d89d47ab224f88864bcee589a8c9ec00d8a4a0d936b673708"`
[INFO] running `"docker" "rm" "-f" "af000d0c5e4b9a4d89d47ab224f88864bcee589a8c9ec00d8a4a0d936b673708"`
[INFO] [stdout] af000d0c5e4b9a4d89d47ab224f88864bcee589a8c9ec00d8a4a0d936b673708