Dec 12 09:33:36.018 INFO checking quantum-0.1.2 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 09:33:36.019 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 09:33:36.248 INFO [stdout] 54cfd244c08018378421eb8887a48f2cc0a569bbdf7418f43d5ead2e5c73bcdd
Dec 12 09:33:36.254 INFO running `"docker" "start" "-a" "54cfd244c08018378421eb8887a48f2cc0a569bbdf7418f43d5ead2e5c73bcdd"`
Dec 12 09:33:36.991 INFO [stderr] usermod: no changes
Dec 12 09:33:37.051 INFO [stderr]     Checking float-cmp v0.2.5
Dec 12 09:33:37.880 INFO [stderr]     Checking quantum v0.1.2 (/source)
Dec 12 09:33:39.304 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:33:39.304 INFO [stderr]    --> src/matrix.rs:193:8
Dec 12 09:33:39.304 INFO [stderr]     |
Dec 12 09:33:39.304 INFO [stderr] 193 |    let mut m = m_real![1, 2; 3, 4];
Dec 12 09:33:39.304 INFO [stderr]     |        ----^
Dec 12 09:33:39.304 INFO [stderr]     |        |
Dec 12 09:33:39.304 INFO [stderr]     |        help: remove this `mut`
Dec 12 09:33:39.304 INFO [stderr]     |
Dec 12 09:33:39.304 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 09:33:39.304 INFO [stderr] 
Dec 12 09:33:39.304 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:33:39.304 INFO [stderr]    --> src/matrix.rs:203:9
Dec 12 09:33:39.304 INFO [stderr]     |
Dec 12 09:33:39.304 INFO [stderr] 203 |     let mut added = m_real![2, 4; 6, 8];
Dec 12 09:33:39.304 INFO [stderr]     |         ----^^^^^
Dec 12 09:33:39.304 INFO [stderr]     |         |
Dec 12 09:33:39.304 INFO [stderr]     |         help: remove this `mut`
Dec 12 09:33:39.304 INFO [stderr] 
Dec 12 09:33:39.304 INFO [stderr] warning: variable does not need to be mutable
Dec 12 09:33:39.304 INFO [stderr]    --> src/matrix.rs:205:9
Dec 12 09:33:39.304 INFO [stderr]     |
Dec 12 09:33:39.304 INFO [stderr] 205 |     let mut squared = m_real![7, 10; 15, 22];
Dec 12 09:33:39.305 INFO [stderr]     |         ----^^^^^^^
Dec 12 09:33:39.305 INFO [stderr]     |         |
Dec 12 09:33:39.305 INFO [stderr]     |         help: remove this `mut`
Dec 12 09:33:39.305 INFO [stderr] 
Dec 12 09:33:39.419 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
Dec 12 09:33:39.420 INFO [stderr] su: No module specific data is present
Dec 12 09:33:40.092 INFO running `"docker" "inspect" "54cfd244c08018378421eb8887a48f2cc0a569bbdf7418f43d5ead2e5c73bcdd"`
Dec 12 09:33:40.384 INFO running `"docker" "rm" "-f" "54cfd244c08018378421eb8887a48f2cc0a569bbdf7418f43d5ead2e5c73bcdd"`
Dec 12 09:33:40.748 INFO [stdout] 54cfd244c08018378421eb8887a48f2cc0a569bbdf7418f43d5ead2e5c73bcdd