Dec 18 18:05:57.287 INFO checking bloomchain-0.2.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:05:57.287 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/bloomchain/0.2.0:/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 18:05:57.479 INFO [stdout] b9b58125318e751daf83ab6eec0cf697ea27344614888daf649f61d7cba3f56f
Dec 18 18:05:57.481 INFO running `"docker" "start" "-a" "b9b58125318e751daf83ab6eec0cf697ea27344614888daf649f61d7cba3f56f"`
Dec 18 18:05:58.157 INFO [stderr]     Checking ethbloom v0.2.5
Dec 18 18:05:58.564 INFO [stderr]     Checking bloomchain v0.2.0 (/opt/crater/workdir)
Dec 18 18:05:58.952 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:58.952 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:58.952 INFO [stderr]    |
Dec 18 18:05:58.952 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:58.952 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:58.952 INFO [stderr]    |                         |
Dec 18 18:05:58.952 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:58.952 INFO [stderr]    |
Dec 18 18:05:58.952 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 18:05:58.952 INFO [stderr] 
Dec 18 18:05:58.952 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:58.952 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:58.952 INFO [stderr]    |
Dec 18 18:05:58.952 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:58.952 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:58.952 INFO [stderr]    |                         |
Dec 18 18:05:58.952 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:58.952 INFO [stderr] 
Dec 18 18:05:59.084 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:59.084 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:59.084 INFO [stderr]    |
Dec 18 18:05:59.084 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:59.084 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:59.084 INFO [stderr]    |                         |
Dec 18 18:05:59.084 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:59.092 INFO [stderr]    |
Dec 18 18:05:59.092 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 18:05:59.092 INFO [stderr] 
Dec 18 18:05:59.092 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:59.092 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:59.092 INFO [stderr]    |
Dec 18 18:05:59.092 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:59.092 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:59.092 INFO [stderr]    |                         |
Dec 18 18:05:59.092 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:59.092 INFO [stderr] 
Dec 18 18:05:59.598 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
Dec 18 18:05:59.932 INFO running `"docker" "inspect" "b9b58125318e751daf83ab6eec0cf697ea27344614888daf649f61d7cba3f56f"`
Dec 18 18:06:00.030 INFO running `"docker" "rm" "-f" "b9b58125318e751daf83ab6eec0cf697ea27344614888daf649f61d7cba3f56f"`
Dec 18 18:06:00.104 INFO [stdout] b9b58125318e751daf83ab6eec0cf697ea27344614888daf649f61d7cba3f56f