[INFO] fetching crate sauron-native 0.1.0...
[INFO] checking sauron-native-0.1.0 against try#d9c49acb7b15e0b6e1b797982100ad6c5d1424a2 for pr-63809
[INFO] extracting crate sauron-native 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sauron-native 0.1.0 on toolchain d9c49acb7b15e0b6e1b797982100ad6c5d1424a2
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "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 /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate sauron-native 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sauron_vdom v0.10.0
[INFO] [stderr]   Downloaded sauron v0.10.0
[INFO] [stderr]   Downloaded itui v0.7.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d7fa27fedce3b48dc83d18e26c2c0279bfefcb8d56faed7eedb6274265a8bb0
[INFO] running `"docker" "start" "-a" "3d7fa27fedce3b48dc83d18e26c2c0279bfefcb8d56faed7eedb6274265a8bb0"`
[INFO] [stderr]     Checking sauron_vdom v0.10.0
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.48
[INFO] [stderr]     Checking stderrlog v0.4.1
[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] 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]    Compiling wasm-bindgen-macro-support v0.2.48
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.48
[INFO] [stderr]     Checking wasm-bindgen v0.2.48
[INFO] [stderr]     Checking js-sys v0.3.25
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.25
[INFO] [stderr]     Checking wasm-bindgen-test v0.2.48
[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] 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]     Finished dev [unoptimized + debuginfo] target(s) in 36.55s
[INFO] running `"docker" "inspect" "3d7fa27fedce3b48dc83d18e26c2c0279bfefcb8d56faed7eedb6274265a8bb0"`
[INFO] running `"docker" "rm" "-f" "3d7fa27fedce3b48dc83d18e26c2c0279bfefcb8d56faed7eedb6274265a8bb0"`
[INFO] [stdout] 3d7fa27fedce3b48dc83d18e26c2c0279bfefcb8d56faed7eedb6274265a8bb0