Dec 04 15:39:09.217 INFO checking komu/weekend-raytracer against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 15:39:09.217 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 15:39:09.487 INFO [stdout] d80e230b2d97568c55a4bdc2a302fb82fa3298f7adcb821c4656d58de0cd32df
Dec 04 15:39:09.489 INFO running `"docker" "start" "-a" "d80e230b2d97568c55a4bdc2a302fb82fa3298f7adcb821c4656d58de0cd32df"`
Dec 04 15:39:10.102 INFO [stderr] usermod: no changes
Dec 04 15:39:10.275 INFO [stderr]     Checking array-init v0.0.4
Dec 04 15:39:10.279 INFO [stderr]     Checking cgmath v0.16.1
Dec 04 15:39:10.279 INFO [stderr]    Compiling num-derive v0.2.2
Dec 04 15:39:10.279 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 04 15:39:15.387 INFO [stderr]     Checking image v0.19.0
Dec 04 15:39:25.975 INFO [stderr]     Checking weekend-raytracer v0.1.0 (/source)
Dec 04 15:39:28.571 INFO [stderr] warning: unused variable: `rng`
Dec 04 15:39:28.571 INFO [stderr]   --> src/main.rs:72:13
Dec 04 15:39:28.571 INFO [stderr]    |
Dec 04 15:39:28.571 INFO [stderr] 72 |     let mut rng = thread_rng();
Dec 04 15:39:28.571 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 04 15:39:28.575 INFO [stderr] warning: unused variable: `rng`
Dec 04 15:39:28.575 INFO [stderr]   --> src/main.rs:72:13
Dec 04 15:39:28.575 INFO [stderr]    |
Dec 04 15:39:28.575 INFO [stderr] 72 |     let mut rng = thread_rng();
Dec 04 15:39:28.575 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 04 15:39:28.575 INFO [stderr]    |
Dec 04 15:39:28.575 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 15:39:28.575 INFO [stderr] 
Dec 04 15:39:28.575 INFO [stderr]    |
Dec 04 15:39:28.575 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 15:39:28.575 INFO [stderr] 
Dec 04 15:39:28.607 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:39:28.607 INFO [stderr]   --> src/main.rs:72:9
Dec 04 15:39:28.607 INFO [stderr]    |
Dec 04 15:39:28.607 INFO [stderr] 72 |     let mut rng = thread_rng();
Dec 04 15:39:28.607 INFO [stderr]    |         ----^^^
Dec 04 15:39:28.607 INFO [stderr]    |         |
Dec 04 15:39:28.607 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:39:28.611 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:39:28.611 INFO [stderr]   --> src/main.rs:72:9
Dec 04 15:39:28.611 INFO [stderr]    |
Dec 04 15:39:28.611 INFO [stderr] 72 |     let mut rng = thread_rng();
Dec 04 15:39:28.611 INFO [stderr]    |         ----^^^
Dec 04 15:39:28.611 INFO [stderr]    |         |
Dec 04 15:39:28.611 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:39:28.611 INFO [stderr]    |
Dec 04 15:39:28.611 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 15:39:28.611 INFO [stderr] 
Dec 04 15:39:28.619 INFO [stderr]    |
Dec 04 15:39:28.619 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 15:39:28.619 INFO [stderr] 
Dec 04 15:39:28.759 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.63s
Dec 04 15:39:28.763 INFO [stderr] su: No module specific data is present
Dec 04 15:39:29.759 INFO running `"docker" "inspect" "d80e230b2d97568c55a4bdc2a302fb82fa3298f7adcb821c4656d58de0cd32df"`
Dec 04 15:39:30.017 INFO running `"docker" "rm" "-f" "d80e230b2d97568c55a4bdc2a302fb82fa3298f7adcb821c4656d58de0cd32df"`
Dec 04 15:39:30.379 INFO [stdout] d80e230b2d97568c55a4bdc2a302fb82fa3298f7adcb821c4656d58de0cd32df