Oct 13 08:46:24.695 INFO checking serde-xml-rs-0.2.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 08:46:24.695 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 08:46:25.036 INFO blam! ee385b52559148e10c142c634d36e3b9d2a8774ee4847df2fd4973eb694c7dbd
Oct 13 08:46:25.041 INFO running `"docker" "start" "-a" "ee385b52559148e10c142c634d36e3b9d2a8774ee4847df2fd4973eb694c7dbd"`
Oct 13 08:46:26.527 INFO kablam! usermod: no changes
Oct 13 08:46:26.616 INFO kablam!     Checking serde-xml-rs v0.2.1 (/source)
Oct 13 08:46:28.396 INFO kablam! warning: variable does not need to be mutable
Oct 13 08:46:28.396 INFO kablam!   --> src/serialize.rs:89:23
Oct 13 08:46:28.396 INFO kablam!    |
Oct 13 08:46:28.396 INFO kablam! 89 |     fn serialize_bool(mut self, v: bool) -> Result<Self::Ok, Self::Error> {
Oct 13 08:46:28.396 INFO kablam!    |                       ----^^^^
Oct 13 08:46:28.396 INFO kablam!    |                       |
Oct 13 08:46:28.396 INFO kablam!    |                       help: remove this `mut`
Oct 13 08:46:28.398 INFO kablam!    |
Oct 13 08:46:28.398 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 08:46:28.398 INFO kablam! 
Oct 13 08:46:29.680 INFO kablam! warning: variable does not need to be mutable
Oct 13 08:46:29.681 INFO kablam!   --> src/serialize.rs:89:23
Oct 13 08:46:29.681 INFO kablam!    |
Oct 13 08:46:29.681 INFO kablam! 89 |     fn serialize_bool(mut self, v: bool) -> Result<Self::Ok, Self::Error> {
Oct 13 08:46:29.682 INFO kablam!    |                       ----^^^^
Oct 13 08:46:29.682 INFO kablam!    |                       |
Oct 13 08:46:29.682 INFO kablam!    |                       help: remove this `mut`
Oct 13 08:46:29.683 INFO kablam!    |
Oct 13 08:46:29.683 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 08:46:29.683 INFO kablam! 
Oct 13 08:46:34.041 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.49s
Oct 13 08:46:34.047 INFO kablam! su: No module specific data is present
Oct 13 08:46:34.837 INFO running `"docker" "rm" "-f" "ee385b52559148e10c142c634d36e3b9d2a8774ee4847df2fd4973eb694c7dbd"`
Oct 13 08:46:35.272 INFO blam! ee385b52559148e10c142c634d36e3b9d2a8774ee4847df2fd4973eb694c7dbd