Nov 30 05:52:39.914 INFO checking brson/coingrab against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 05:52:39.914 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 05:52:40.332 INFO [stdout] 6facaf9c3ec83c7cf9997e5e6e580fdb60c0136fc0a63f1dd79b97a4f2000fbd
Nov 30 05:52:40.334 INFO running `"docker" "start" "-a" "6facaf9c3ec83c7cf9997e5e6e580fdb60c0136fc0a63f1dd79b97a4f2000fbd"`
Nov 30 05:52:41.516 INFO [stderr] usermod: no changes
Nov 30 05:52:41.872 INFO [stderr]     Checking fs2 v0.4.1
Nov 30 05:52:41.882 INFO [stderr]     Checking toml v0.4.1
Nov 30 05:52:41.894 INFO [stderr]     Checking tempdir v0.3.5
Nov 30 05:52:41.894 INFO [stderr]     Checking env_logger v0.4.3
Nov 30 05:52:41.916 INFO [stderr]     Checking reqwest v0.6.2
Nov 30 05:52:43.378 INFO [stderr]     Checking fancy_flocks v0.1.0 (/source/fancy_flocks)
Nov 30 05:52:44.784 INFO [stderr] warning: variable does not need to be mutable
Nov 30 05:52:44.784 INFO [stderr]    --> fancy_flocks/src/dirty_flock.rs:111:13
Nov 30 05:52:44.784 INFO [stderr]     |
Nov 30 05:52:44.784 INFO [stderr] 111 |         let mut file = file.deref_mut().as_mut().expect("locked file");
Nov 30 05:52:44.784 INFO [stderr]     |             ----^^^^
Nov 30 05:52:44.784 INFO [stderr]     |             |
Nov 30 05:52:44.784 INFO [stderr]     |             help: remove this `mut`
Nov 30 05:52:44.784 INFO [stderr]     |
Nov 30 05:52:44.784 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 05:52:44.784 INFO [stderr] 
Nov 30 05:52:44.796 INFO [stderr] warning: variable does not need to be mutable
Nov 30 05:52:44.796 INFO [stderr]    --> fancy_flocks/src/dirty_flock.rs:123:17
Nov 30 05:52:44.796 INFO [stderr]     |
Nov 30 05:52:44.796 INFO [stderr] 123 |             let mut file = file_.deref_mut().as_mut().expect("locked file");
Nov 30 05:52:44.796 INFO [stderr]     |                 ----^^^^
Nov 30 05:52:44.796 INFO [stderr]     |                 |
Nov 30 05:52:44.796 INFO [stderr]     |                 help: remove this `mut`
Nov 30 05:52:44.796 INFO [stderr] 
Nov 30 05:52:46.162 INFO [stderr]     Checking coingrab v0.1.0 (/source)
Nov 30 05:53:05.095 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.55s
Nov 30 05:53:05.109 INFO [stderr] su: No module specific data is present
Nov 30 05:53:06.129 INFO running `"docker" "inspect" "6facaf9c3ec83c7cf9997e5e6e580fdb60c0136fc0a63f1dd79b97a4f2000fbd"`
Nov 30 05:53:06.442 INFO running `"docker" "rm" "-f" "6facaf9c3ec83c7cf9997e5e6e580fdb60c0136fc0a63f1dd79b97a4f2000fbd"`
Nov 30 05:53:06.696 INFO [stdout] 6facaf9c3ec83c7cf9997e5e6e580fdb60c0136fc0a63f1dd79b97a4f2000fbd