Dec 04 21:29:11.920 INFO checking brson/coingrab against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 21:29:11.920 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 04 21:29:12.384 INFO [stdout] d30713c59520ee8fdb9b385b8dfd5b42622261942d9cea2fb47bb40a150fdff0
Dec 04 21:29:12.388 INFO running `"docker" "start" "-a" "d30713c59520ee8fdb9b385b8dfd5b42622261942d9cea2fb47bb40a150fdff0"`
Dec 04 21:29:13.711 INFO [stderr] usermod: no changes
Dec 04 21:29:13.972 INFO [stderr]    Compiling backtrace-sys v0.1.11
Dec 04 21:29:13.982 INFO [stderr]     Checking utf-8 v0.6.0
Dec 04 21:29:13.983 INFO [stderr]     Checking fs2 v0.4.1
Dec 04 21:29:13.983 INFO [stderr]     Checking libflate v0.1.7
Dec 04 21:29:13.983 INFO [stderr]     Checking toml v0.4.1
Dec 04 21:29:13.983 INFO [stderr]     Checking tempdir v0.3.5
Dec 04 21:29:13.983 INFO [stderr]    Compiling string_cache_codegen v0.3.1
Dec 04 21:29:13.983 INFO [stderr]    Compiling serde_derive_internals v0.15.1
Dec 04 21:29:14.857 INFO [stderr]     Checking num v0.1.39
Dec 04 21:29:16.251 INFO [stderr]    Compiling html5ever v0.14.1
Dec 04 21:29:16.331 INFO [stderr]     Checking serde_urlencoded v0.5.1
Dec 04 21:29:17.291 INFO [stderr]     Checking env_logger v0.4.3
Dec 04 21:29:17.879 INFO [stderr]     Checking fancy_flocks v0.1.0 (/source/fancy_flocks)
Dec 04 21:29:18.221 INFO [stderr]     Checking tendril v0.2.4
Dec 04 21:29:20.791 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:29:20.791 INFO [stderr]    --> fancy_flocks/src/dirty_flock.rs:111:13
Dec 04 21:29:20.791 INFO [stderr]     |
Dec 04 21:29:20.791 INFO [stderr] 111 |         let mut file = file.deref_mut().as_mut().expect("locked file");
Dec 04 21:29:20.791 INFO [stderr]     |             ----^^^^
Dec 04 21:29:20.791 INFO [stderr]     |             |
Dec 04 21:29:20.791 INFO [stderr]     |             help: remove this `mut`
Dec 04 21:29:20.814 INFO [stderr]     |
Dec 04 21:29:20.814 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 21:29:20.814 INFO [stderr] 
Dec 04 21:29:20.815 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:29:20.815 INFO [stderr]    --> fancy_flocks/src/dirty_flock.rs:123:17
Dec 04 21:29:20.815 INFO [stderr]     |
Dec 04 21:29:20.815 INFO [stderr] 123 |             let mut file = file_.deref_mut().as_mut().expect("locked file");
Dec 04 21:29:20.815 INFO [stderr]     |                 ----^^^^
Dec 04 21:29:20.815 INFO [stderr]     |                 |
Dec 04 21:29:20.815 INFO [stderr]     |                 help: remove this `mut`
Dec 04 21:29:20.819 INFO [stderr] 
Dec 04 21:29:25.987 INFO [stderr]     Checking chrono v0.3.1
Dec 04 21:29:26.035 INFO [stderr]    Compiling string_cache v0.4.0
Dec 04 21:29:26.139 INFO [stderr]    Compiling html5ever-atoms v0.2.2
Dec 04 21:29:26.210 INFO [stderr]     Checking reqwest v0.6.2
Dec 04 21:29:26.569 INFO [stderr]    Compiling serde_derive v1.0.8
Dec 04 21:29:43.223 INFO [stderr]     Checking select v0.4.0
Dec 04 21:29:47.605 INFO [stderr]     Checking backtrace v0.3.2
Dec 04 21:29:48.247 INFO [stderr]     Checking error-chain v0.10.0
Dec 04 21:29:49.067 INFO [stderr]     Checking coingrab v0.1.0 (/source)
Dec 04 21:30:08.262 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.52s
Dec 04 21:30:08.287 INFO [stderr] su: No module specific data is present
Dec 04 21:30:09.156 INFO running `"docker" "inspect" "d30713c59520ee8fdb9b385b8dfd5b42622261942d9cea2fb47bb40a150fdff0"`
Dec 04 21:30:09.493 INFO running `"docker" "rm" "-f" "d30713c59520ee8fdb9b385b8dfd5b42622261942d9cea2fb47bb40a150fdff0"`
Dec 04 21:30:09.815 INFO [stdout] d30713c59520ee8fdb9b385b8dfd5b42622261942d9cea2fb47bb40a150fdff0