Dec 12 07:46:40.202 INFO checking serde-avro-0.5.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 07:46:40.202 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 07:46:40.656 INFO [stdout] 533063f8f1434911ca967a306e9f5cbd20012f8d80e3453bcd96138e80127c47
Dec 12 07:46:40.658 INFO running `"docker" "start" "-a" "533063f8f1434911ca967a306e9f5cbd20012f8d80e3453bcd96138e80127c47"`
Dec 12 07:46:41.564 INFO [stderr] usermod: no changes
Dec 12 07:46:41.727 INFO [stderr]    Compiling serde-avro v0.5.0 (/source)
Dec 12 07:46:41.728 INFO [stderr]     Checking snap v0.2.5
Dec 12 07:46:41.733 INFO [stderr]     Checking ordered-float v0.4.0
Dec 12 07:46:41.733 INFO [stderr]     Checking error-chain v0.9.0
Dec 12 07:46:43.700 INFO [stderr]     Checking serde-value v0.4.1
Dec 12 07:46:46.524 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:46:46.524 INFO [stderr]    --> src/de/read.rs:102:13
Dec 12 07:46:46.524 INFO [stderr]     |
Dec 12 07:46:46.524 INFO [stderr] 102 |         let mut buffer = self.current_block.get_mut();
Dec 12 07:46:46.524 INFO [stderr]     |             ----^^^^^^
Dec 12 07:46:46.524 INFO [stderr]     |             |
Dec 12 07:46:46.524 INFO [stderr]     |             help: remove this `mut`
Dec 12 07:46:46.524 INFO [stderr]     |
Dec 12 07:46:46.524 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:46:46.524 INFO [stderr] 
Dec 12 07:46:47.876 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:46:47.876 INFO [stderr]    --> src/de/read.rs:102:13
Dec 12 07:46:47.876 INFO [stderr]     |
Dec 12 07:46:47.876 INFO [stderr] 102 |         let mut buffer = self.current_block.get_mut();
Dec 12 07:46:47.876 INFO [stderr]     |             ----^^^^^^
Dec 12 07:46:47.876 INFO [stderr]     |             |
Dec 12 07:46:47.876 INFO [stderr]     |             help: remove this `mut`
Dec 12 07:46:47.876 INFO [stderr]     |
Dec 12 07:46:47.876 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:46:47.876 INFO [stderr] 
Dec 12 07:46:49.492 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.89s
Dec 12 07:46:49.507 INFO [stderr] su: No module specific data is present
Dec 12 07:46:50.130 INFO running `"docker" "inspect" "533063f8f1434911ca967a306e9f5cbd20012f8d80e3453bcd96138e80127c47"`
Dec 12 07:46:50.318 INFO running `"docker" "rm" "-f" "533063f8f1434911ca967a306e9f5cbd20012f8d80e3453bcd96138e80127c47"`
Dec 12 07:46:50.551 INFO [stdout] 533063f8f1434911ca967a306e9f5cbd20012f8d80e3453bcd96138e80127c47