Dec 12 07:46:10.638 INFO checking serde-xml-rs-0.2.1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 07:46:10.638 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 07:46:11.116 INFO [stdout] c8e2a53e2824cb28a2d357484d6c10f59c639e6e7bda18e3f5ee645de0057a2f
Dec 12 07:46:11.118 INFO running `"docker" "start" "-a" "c8e2a53e2824cb28a2d357484d6c10f59c639e6e7bda18e3f5ee645de0057a2f"`
Dec 12 07:46:11.794 INFO [stderr] usermod: no changes
Dec 12 07:46:11.852 INFO [stderr]     Checking serde-xml-rs v0.2.1 (/source)
Dec 12 07:46:13.080 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:46:13.080 INFO [stderr]   --> src/serialize.rs:89:23
Dec 12 07:46:13.080 INFO [stderr]    |
Dec 12 07:46:13.080 INFO [stderr] 89 |     fn serialize_bool(mut self, v: bool) -> Result<Self::Ok, Self::Error> {
Dec 12 07:46:13.080 INFO [stderr]    |                       ----^^^^
Dec 12 07:46:13.080 INFO [stderr]    |                       |
Dec 12 07:46:13.080 INFO [stderr]    |                       help: remove this `mut`
Dec 12 07:46:13.080 INFO [stderr]    |
Dec 12 07:46:13.080 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 07:46:13.080 INFO [stderr] 
Dec 12 07:46:13.135 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:46:13.135 INFO [stderr]   --> src/serialize.rs:89:23
Dec 12 07:46:13.135 INFO [stderr]    |
Dec 12 07:46:13.135 INFO [stderr] 89 |     fn serialize_bool(mut self, v: bool) -> Result<Self::Ok, Self::Error> {
Dec 12 07:46:13.135 INFO [stderr]    |                       ----^^^^
Dec 12 07:46:13.135 INFO [stderr]    |                       |
Dec 12 07:46:13.135 INFO [stderr]    |                       help: remove this `mut`
Dec 12 07:46:13.135 INFO [stderr]    |
Dec 12 07:46:13.135 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 07:46:13.135 INFO [stderr] 
Dec 12 07:46:16.180 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.36s
Dec 12 07:46:16.180 INFO [stderr] su: No module specific data is present
Dec 12 07:46:16.662 INFO running `"docker" "inspect" "c8e2a53e2824cb28a2d357484d6c10f59c639e6e7bda18e3f5ee645de0057a2f"`
Dec 12 07:46:16.770 INFO running `"docker" "rm" "-f" "c8e2a53e2824cb28a2d357484d6c10f59c639e6e7bda18e3f5ee645de0057a2f"`
Dec 12 07:46:16.952 INFO [stdout] c8e2a53e2824cb28a2d357484d6c10f59c639e6e7bda18e3f5ee645de0057a2f