Dec 17 12:36:07.129 INFO checking vernonrj/similarity against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 12:36:07.129 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/vernonrj/similarity:/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 17 12:36:07.616 INFO [stdout] 9b4778462328d2c52a0d094fc927cf0e0eada1a806d9078ff75d7bc3ad52d667
Dec 17 12:36:07.618 INFO running `"docker" "start" "-a" "9b4778462328d2c52a0d094fc927cf0e0eada1a806d9078ff75d7bc3ad52d667"`
Dec 17 12:36:09.385 INFO [stderr]    Compiling backtrace-sys v0.1.10
Dec 17 12:36:09.385 INFO [stderr]     Checking memchr v1.0.1
Dec 17 12:36:09.389 INFO [stderr]     Checking clap v2.21.1
Dec 17 12:36:27.530 INFO [stderr]     Checking backtrace v0.3.0
Dec 17 12:36:27.933 INFO [stderr]     Checking error-chain v0.10.0
Dec 17 12:36:28.386 INFO [stderr]     Checking similarity v0.1.0 (/opt/crater/workdir)
Dec 17 12:36:29.068 INFO [stderr] warning: variable does not need to be mutable
Dec 17 12:36:29.069 INFO [stderr]    --> src/diffcore.rs:143:21
Dec 17 12:36:29.069 INFO [stderr]     |
Dec 17 12:36:29.069 INFO [stderr] 143 |                 let mut e = h.entry(buf).or_insert((hashed, 0));
Dec 17 12:36:29.070 INFO [stderr]     |                     ----^
Dec 17 12:36:29.070 INFO [stderr]     |                     |
Dec 17 12:36:29.070 INFO [stderr]     |                     help: remove this `mut`
Dec 17 12:36:29.071 INFO [stderr]     |
Dec 17 12:36:29.071 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 12:36:29.071 INFO [stderr] 
Dec 17 12:36:29.180 INFO [stderr] warning: variable does not need to be mutable
Dec 17 12:36:29.180 INFO [stderr]    --> src/diffcore.rs:143:21
Dec 17 12:36:29.180 INFO [stderr]     |
Dec 17 12:36:29.180 INFO [stderr] 143 |                 let mut e = h.entry(buf).or_insert((hashed, 0));
Dec 17 12:36:29.180 INFO [stderr]     |                     ----^
Dec 17 12:36:29.180 INFO [stderr]     |                     |
Dec 17 12:36:29.180 INFO [stderr]     |                     help: remove this `mut`
Dec 17 12:36:29.180 INFO [stderr]     |
Dec 17 12:36:29.180 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 12:36:29.180 INFO [stderr] 
Dec 17 12:36:29.249 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.99s
Dec 17 12:36:30.701 INFO running `"docker" "inspect" "9b4778462328d2c52a0d094fc927cf0e0eada1a806d9078ff75d7bc3ad52d667"`
Dec 17 12:36:30.986 INFO running `"docker" "rm" "-f" "9b4778462328d2c52a0d094fc927cf0e0eada1a806d9078ff75d7bc3ad52d667"`
Dec 17 12:36:31.308 INFO [stdout] 9b4778462328d2c52a0d094fc927cf0e0eada1a806d9078ff75d7bc3ad52d667