Dec 18 18:05:56.764 INFO checking bloomchain-0.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:05:56.765 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 18:05:57.000 INFO [stdout] bc44dc16109f71638434cf3de31447e581456b9487e14f349658b69a49969f11
Dec 18 18:05:57.002 INFO running `"docker" "start" "-a" "bc44dc16109f71638434cf3de31447e581456b9487e14f349658b69a49969f11"`
Dec 18 18:05:57.558 INFO [stderr]     Checking rustc-hex v1.0.0
Dec 18 18:05:57.912 INFO [stderr]     Checking ethbloom v0.2.5
Dec 18 18:05:58.273 INFO [stderr]     Checking bloomchain v0.2.0 (/opt/crater/workdir)
Dec 18 18:05:58.651 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:58.651 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:58.651 INFO [stderr]    |
Dec 18 18:05:58.651 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:58.651 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:58.651 INFO [stderr]    |                         |
Dec 18 18:05:58.651 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:58.651 INFO [stderr]    |
Dec 18 18:05:58.651 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 18:05:58.651 INFO [stderr] 
Dec 18 18:05:58.651 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:58.651 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:58.651 INFO [stderr]    |
Dec 18 18:05:58.651 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:58.651 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:58.651 INFO [stderr]    |                         |
Dec 18 18:05:58.651 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:58.651 INFO [stderr] 
Dec 18 18:05:58.777 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:58.777 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:58.777 INFO [stderr]    |
Dec 18 18:05:58.777 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:58.777 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:58.777 INFO [stderr]    |                         |
Dec 18 18:05:58.777 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:58.777 INFO [stderr]    |
Dec 18 18:05:58.777 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 18:05:58.777 INFO [stderr] 
Dec 18 18:05:58.777 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:05:58.777 INFO [stderr]   --> src/group/chain.rs:36:10
Dec 18 18:05:58.777 INFO [stderr]    |
Dec 18 18:05:58.777 INFO [stderr] 36 |                     let mut group = acc
Dec 18 18:05:58.777 INFO [stderr]    |                         ----^^^^^
Dec 18 18:05:58.777 INFO [stderr]    |                         |
Dec 18 18:05:58.777 INFO [stderr]    |                         help: remove this `mut`
Dec 18 18:05:58.777 INFO [stderr] 
Dec 18 18:05:59.307 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Dec 18 18:05:59.745 INFO running `"docker" "inspect" "bc44dc16109f71638434cf3de31447e581456b9487e14f349658b69a49969f11"`
Dec 18 18:05:59.866 INFO running `"docker" "rm" "-f" "bc44dc16109f71638434cf3de31447e581456b9487e14f349658b69a49969f11"`
Dec 18 18:05:59.984 INFO [stdout] bc44dc16109f71638434cf3de31447e581456b9487e14f349658b69a49969f11