Dec 12 04:23:59.687 INFO checking zcfg_flag_parser-0.2.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 04:23:59.687 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 12 04:24:00.128 INFO [stdout] 7ba5bfe53249a601f35c950ac3f91dd3a060ceee4b508ad98e2d86c539d1cb2c
Dec 12 04:24:00.132 INFO running `"docker" "start" "-a" "7ba5bfe53249a601f35c950ac3f91dd3a060ceee4b508ad98e2d86c539d1cb2c"`
Dec 12 04:24:01.156 INFO [stderr] usermod: no changes
Dec 12 04:24:01.227 INFO [stderr]     Checking zcfg v0.2.0
Dec 12 04:24:01.227 INFO [stderr]     Checking itertools v0.6.5
Dec 12 04:24:02.984 INFO [stderr]     Checking zcfg_flag_parser v0.2.0 (/source)
Dec 12 04:24:03.680 INFO [stderr] warning: variable does not need to be mutable
Dec 12 04:24:03.680 INFO [stderr]   --> src/lib.rs:58:16
Dec 12 04:24:03.680 INFO [stderr]    |
Dec 12 04:24:03.680 INFO [stderr] 58 |     .batching(|mut it| {
Dec 12 04:24:03.680 INFO [stderr]    |                ----^^
Dec 12 04:24:03.680 INFO [stderr]    |                |
Dec 12 04:24:03.680 INFO [stderr]    |                help: remove this `mut`
Dec 12 04:24:03.680 INFO [stderr]    |
Dec 12 04:24:03.680 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 04:24:03.680 INFO [stderr] 
Dec 12 04:24:03.984 INFO [stderr] warning: variable does not need to be mutable
Dec 12 04:24:03.984 INFO [stderr]   --> src/lib.rs:58:16
Dec 12 04:24:03.984 INFO [stderr]    |
Dec 12 04:24:03.984 INFO [stderr] 58 |     .batching(|mut it| {
Dec 12 04:24:03.984 INFO [stderr]    |                ----^^
Dec 12 04:24:03.984 INFO [stderr]    |                |
Dec 12 04:24:03.984 INFO [stderr]    |                help: remove this `mut`
Dec 12 04:24:03.984 INFO [stderr]    |
Dec 12 04:24:03.984 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 04:24:03.984 INFO [stderr] 
Dec 12 04:24:04.000 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.82s
Dec 12 04:24:04.003 INFO [stderr] su: No module specific data is present
Dec 12 04:24:04.277 INFO running `"docker" "inspect" "7ba5bfe53249a601f35c950ac3f91dd3a060ceee4b508ad98e2d86c539d1cb2c"`
Dec 12 04:24:04.380 INFO running `"docker" "rm" "-f" "7ba5bfe53249a601f35c950ac3f91dd3a060ceee4b508ad98e2d86c539d1cb2c"`
Dec 12 04:24:04.523 INFO [stdout] 7ba5bfe53249a601f35c950ac3f91dd3a060ceee4b508ad98e2d86c539d1cb2c