Dec 12 10:57:51.600 INFO checking nff-0.1.2 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 10:57:51.600 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 10:57:52.040 INFO [stdout] 1f7ff3ce363435845a786ba0955975fe601379b9121e75b32b2c6e8b9d9f44b4
Dec 12 10:57:52.042 INFO running `"docker" "start" "-a" "1f7ff3ce363435845a786ba0955975fe601379b9121e75b32b2c6e8b9d9f44b4"`
Dec 12 10:57:54.518 INFO [stderr] usermod: no changes
Dec 12 10:57:54.616 INFO [stderr]     Checking hashbrown v0.1.7
Dec 12 10:57:55.996 INFO [stderr]     Checking nff v0.1.2 (/source)
Dec 12 10:57:56.992 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:57:56.992 INFO [stderr]   --> src/lib.rs:61:17
Dec 12 10:57:56.992 INFO [stderr]    |
Dec 12 10:57:56.992 INFO [stderr] 61 |             let mut rhs = side.next().expect("Missing right hand side").trim().chars();
Dec 12 10:57:56.992 INFO [stderr]    |                 ----^^^
Dec 12 10:57:56.992 INFO [stderr]    |                 |
Dec 12 10:57:56.992 INFO [stderr]    |                 help: remove this `mut`
Dec 12 10:57:56.992 INFO [stderr]    |
Dec 12 10:57:56.992 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 10:57:56.992 INFO [stderr] 
Dec 12 10:57:57.304 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:57:57.304 INFO [stderr]   --> src/lib.rs:61:17
Dec 12 10:57:57.304 INFO [stderr]    |
Dec 12 10:57:57.304 INFO [stderr] 61 |             let mut rhs = side.next().expect("Missing right hand side").trim().chars();
Dec 12 10:57:57.304 INFO [stderr]    |                 ----^^^
Dec 12 10:57:57.304 INFO [stderr]    |                 |
Dec 12 10:57:57.304 INFO [stderr]    |                 help: remove this `mut`
Dec 12 10:57:57.304 INFO [stderr]    |
Dec 12 10:57:57.304 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 10:57:57.304 INFO [stderr] 
Dec 12 10:57:58.615 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.08s
Dec 12 10:57:58.624 INFO [stderr] su: No module specific data is present
Dec 12 10:57:59.466 INFO running `"docker" "inspect" "1f7ff3ce363435845a786ba0955975fe601379b9121e75b32b2c6e8b9d9f44b4"`
Dec 12 10:57:59.808 INFO running `"docker" "rm" "-f" "1f7ff3ce363435845a786ba0955975fe601379b9121e75b32b2c6e8b9d9f44b4"`
Dec 12 10:58:00.121 INFO [stdout] 1f7ff3ce363435845a786ba0955975fe601379b9121e75b32b2c6e8b9d9f44b4