Nov 28 08:20:03.097 INFO checking brson/coingrab against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 08:20:03.097 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 08:20:03.560 INFO [stdout] 10c45a25ce368785b195f1d1e89014f4235375dfa21ab04839a3e4bf14ffee32
Nov 28 08:20:03.562 INFO running `"docker" "start" "-a" "10c45a25ce368785b195f1d1e89014f4235375dfa21ab04839a3e4bf14ffee32"`
Nov 28 08:20:04.608 INFO [stderr] usermod: no changes
Nov 28 08:20:04.958 INFO [stderr]    Compiling backtrace-sys v0.1.11
Nov 28 08:20:04.969 INFO [stderr]     Checking fs2 v0.4.1
Nov 28 08:20:04.974 INFO [stderr]     Checking libflate v0.1.7
Nov 28 08:20:04.995 INFO [stderr]     Checking toml v0.4.1
Nov 28 08:20:04.995 INFO [stderr]     Checking idna v0.1.2
Nov 28 08:20:05.006 INFO [stderr]    Compiling string_cache_codegen v0.3.1
Nov 28 08:20:05.008 INFO [stderr]    Compiling html5ever v0.14.1
Nov 28 08:20:05.009 INFO [stderr]     Checking env_logger v0.4.3
Nov 28 08:20:06.956 INFO [stderr]     Checking chrono v0.3.1
Nov 28 08:20:08.740 INFO [stderr]     Checking fancy_flocks v0.1.0 (/source/fancy_flocks)
Nov 28 08:20:12.685 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:20:12.685 INFO [stderr]    --> fancy_flocks/src/dirty_flock.rs:111:13
Nov 28 08:20:12.685 INFO [stderr]     |
Nov 28 08:20:12.685 INFO [stderr] 111 |         let mut file = file.deref_mut().as_mut().expect("locked file");
Nov 28 08:20:12.685 INFO [stderr]     |             ----^^^^
Nov 28 08:20:12.685 INFO [stderr]     |             |
Nov 28 08:20:12.685 INFO [stderr]     |             help: remove this `mut`
Nov 28 08:20:12.708 INFO [stderr]     |
Nov 28 08:20:12.708 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 08:20:12.708 INFO [stderr] 
Nov 28 08:20:12.720 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:20:12.721 INFO [stderr]    --> fancy_flocks/src/dirty_flock.rs:123:17
Nov 28 08:20:12.721 INFO [stderr]     |
Nov 28 08:20:12.721 INFO [stderr] 123 |             let mut file = file_.deref_mut().as_mut().expect("locked file");
Nov 28 08:20:12.721 INFO [stderr]     |                 ----^^^^
Nov 28 08:20:12.721 INFO [stderr]     |                 |
Nov 28 08:20:12.721 INFO [stderr]     |                 help: remove this `mut`
Nov 28 08:20:12.736 INFO [stderr] 
Nov 28 08:20:16.222 INFO [stderr]    Compiling string_cache v0.4.0
Nov 28 08:20:17.572 INFO [stderr]    Compiling html5ever-atoms v0.2.2
Nov 28 08:20:17.672 INFO [stderr]     Checking url v1.4.1
Nov 28 08:20:23.567 INFO [stderr]     Checking hyper v0.10.12
Nov 28 08:20:23.567 INFO [stderr]     Checking serde_urlencoded v0.5.1
Nov 28 08:20:31.504 INFO [stderr]     Checking hyper-native-tls v0.2.4
Nov 28 08:20:33.033 INFO [stderr]     Checking reqwest v0.6.2
Nov 28 08:20:35.792 INFO [stderr]     Checking select v0.4.0
Nov 28 08:20:38.868 INFO [stderr]     Checking backtrace v0.3.2
Nov 28 08:20:39.463 INFO [stderr]     Checking error-chain v0.10.0
Nov 28 08:20:40.304 INFO [stderr]     Checking coingrab v0.1.0 (/source)
Nov 28 08:20:57.720 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.08s
Nov 28 08:20:57.752 INFO [stderr] su: No module specific data is present
Nov 28 08:20:58.320 INFO running `"docker" "inspect" "10c45a25ce368785b195f1d1e89014f4235375dfa21ab04839a3e4bf14ffee32"`
Nov 28 08:20:58.694 INFO running `"docker" "rm" "-f" "10c45a25ce368785b195f1d1e89014f4235375dfa21ab04839a3e4bf14ffee32"`
Nov 28 08:20:58.978 INFO [stdout] 10c45a25ce368785b195f1d1e89014f4235375dfa21ab04839a3e4bf14ffee32