Dec 18 04:36:32.175 INFO checking acmumn/minnehack-blockchain-check-in against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 04:36:32.175 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/acmumn/minnehack-blockchain-check-in:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:36:32.592 INFO [stdout] 8d6330a78b0fa0a3bc3b2a949d1789ec9885a97970e15cf21438b0d5f2a93344
Dec 18 04:36:32.598 INFO running `"docker" "start" "-a" "8d6330a78b0fa0a3bc3b2a949d1789ec9885a97970e15cf21438b0d5f2a93344"`
Dec 18 04:36:34.355 INFO [stderr]     Checking memchr v1.0.2
Dec 18 04:36:34.361 INFO [stderr]     Checking termion v1.5.1
Dec 18 04:36:34.369 INFO [stderr]     Checking rand v0.4.1
Dec 18 04:36:34.371 INFO [stderr]     Checking arrayvec v0.4.6
Dec 18 04:36:34.372 INFO [stderr]     Checking serde_cbor v0.8.1
Dec 18 04:36:34.473 INFO [stderr]     Checking backtrace-sys v0.1.16
Dec 18 04:36:34.475 INFO [stderr]    Compiling derive-error-chain v0.10.1
Dec 18 04:36:34.476 INFO [stderr]     Checking env_logger v0.4.3
Dec 18 04:36:36.034 INFO [stderr]     Checking backtrace v0.3.5
Dec 18 04:36:36.201 INFO [stderr]     Checking nom v3.2.1
Dec 18 04:36:37.702 INFO [stderr]     Checking pretty_env_logger v0.1.1
Dec 18 04:36:38.610 INFO [stderr]     Checking error-chain v0.10.0
Dec 18 04:36:40.269 INFO [stderr]     Checking error-chain v0.11.0
Dec 18 04:36:40.313 INFO [stderr]     Checking tui v0.2.0
Dec 18 04:36:43.824 INFO [stderr]     Checking quickcheck v0.6.0
Dec 18 04:36:48.344 INFO [stderr]     Checking dotenv v0.10.1
Dec 18 04:36:48.851 INFO [stderr]     Checking minnehack-check-in v0.1.0 (/opt/crater/workdir)
Dec 18 04:36:51.204 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:36:51.204 INFO [stderr]   --> src/lib.rs:79:13
Dec 18 04:36:51.204 INFO [stderr]    |
Dec 18 04:36:51.204 INFO [stderr] 79 |         let mut client = Client::new_with_opts(
Dec 18 04:36:51.204 INFO [stderr]    |             ----^^^^^^
Dec 18 04:36:51.204 INFO [stderr]    |             |
Dec 18 04:36:51.204 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:36:51.204 INFO [stderr]    |
Dec 18 04:36:51.204 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:36:51.204 INFO [stderr] 
Dec 18 04:36:51.284 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:36:51.284 INFO [stderr]   --> src/lib.rs:79:13
Dec 18 04:36:51.284 INFO [stderr]    |
Dec 18 04:36:51.284 INFO [stderr] 79 |         let mut client = Client::new_with_opts(
Dec 18 04:36:51.284 INFO [stderr]    |             ----^^^^^^
Dec 18 04:36:51.284 INFO [stderr]    |             |
Dec 18 04:36:51.284 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:36:51.284 INFO [stderr]    |
Dec 18 04:36:51.284 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:36:51.284 INFO [stderr] 
Dec 18 04:36:51.744 INFO [stderr]     Checking minnehack-check-in-monitor v0.1.0 (/opt/crater/workdir/minnehack-check-in-monitor)
Dec 18 04:36:55.718 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.59s
Dec 18 04:36:56.656 INFO running `"docker" "inspect" "8d6330a78b0fa0a3bc3b2a949d1789ec9885a97970e15cf21438b0d5f2a93344"`
Dec 18 04:36:57.008 INFO running `"docker" "rm" "-f" "8d6330a78b0fa0a3bc3b2a949d1789ec9885a97970e15cf21438b0d5f2a93344"`
Dec 18 04:36:57.428 INFO [stdout] 8d6330a78b0fa0a3bc3b2a949d1789ec9885a97970e15cf21438b0d5f2a93344