Dec 05 06:56:08.303 INFO checking serde-avro-0.5.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:56:08.303 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 06:56:08.736 INFO [stdout] 5d3604cfd51f79ce7475f2480cdfe819fc8f5431c13a953d0692eeb6e4c99eb7
Dec 05 06:56:08.745 INFO running `"docker" "start" "-a" "5d3604cfd51f79ce7475f2480cdfe819fc8f5431c13a953d0692eeb6e4c99eb7"`
Dec 05 06:56:09.439 INFO [stderr] usermod: no changes
Dec 05 06:56:09.543 INFO [stderr]    Compiling serde-avro v0.5.0 (/source)
Dec 05 06:56:09.547 INFO [stderr]     Checking snap v0.2.5
Dec 05 06:56:09.547 INFO [stderr]     Checking ordered-float v0.4.0
Dec 05 06:56:09.547 INFO [stderr]     Checking error-chain v0.9.0
Dec 05 06:56:10.559 INFO [stderr]     Checking serde-value v0.4.1
Dec 05 06:56:13.295 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:56:13.295 INFO [stderr]    --> src/de/read.rs:102:13
Dec 05 06:56:13.295 INFO [stderr]     |
Dec 05 06:56:13.295 INFO [stderr] 102 |         let mut buffer = self.current_block.get_mut();
Dec 05 06:56:13.295 INFO [stderr]     |             ----^^^^^^
Dec 05 06:56:13.295 INFO [stderr]     |             |
Dec 05 06:56:13.295 INFO [stderr]     |             help: remove this `mut`
Dec 05 06:56:13.295 INFO [stderr]     |
Dec 05 06:56:13.295 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:56:13.295 INFO [stderr] 
Dec 05 06:56:14.127 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:56:14.127 INFO [stderr]    --> src/de/read.rs:102:13
Dec 05 06:56:14.127 INFO [stderr]     |
Dec 05 06:56:14.127 INFO [stderr] 102 |         let mut buffer = self.current_block.get_mut();
Dec 05 06:56:14.127 INFO [stderr]     |             ----^^^^^^
Dec 05 06:56:14.127 INFO [stderr]     |             |
Dec 05 06:56:14.127 INFO [stderr]     |             help: remove this `mut`
Dec 05 06:56:14.127 INFO [stderr]     |
Dec 05 06:56:14.127 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:56:14.127 INFO [stderr] 
Dec 05 06:56:15.734 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.27s
Dec 05 06:56:15.738 INFO [stderr] su: No module specific data is present
Dec 05 06:56:16.305 INFO running `"docker" "inspect" "5d3604cfd51f79ce7475f2480cdfe819fc8f5431c13a953d0692eeb6e4c99eb7"`
Dec 05 06:56:16.593 INFO running `"docker" "rm" "-f" "5d3604cfd51f79ce7475f2480cdfe819fc8f5431c13a953d0692eeb6e4c99eb7"`
Dec 05 06:56:16.923 INFO [stdout] 5d3604cfd51f79ce7475f2480cdfe819fc8f5431c13a953d0692eeb6e4c99eb7