Dec 04 17:01:04.092 INFO checking jacobvaneijk/dmr against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 17:01:04.092 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 17:01:04.565 INFO [stdout] 79b31fbd1e94032080222b46645a3ce923116da3eba7982cfb11beead1806a92
Dec 04 17:01:04.567 INFO running `"docker" "start" "-a" "79b31fbd1e94032080222b46645a3ce923116da3eba7982cfb11beead1806a92"`
Dec 04 17:01:06.324 INFO [stderr] usermod: no changes
Dec 04 17:01:06.383 INFO [stderr]     Checking dmr v0.1.0 (/source)
Dec 04 17:01:06.959 INFO [stderr] warning: unused variable: `output`
Dec 04 17:01:06.959 INFO [stderr]   --> src/main.rs:47:9
Dec 04 17:01:06.959 INFO [stderr]    |
Dec 04 17:01:06.959 INFO [stderr] 47 |     let output = match matches.opt_str("o") {
Dec 04 17:01:06.959 INFO [stderr]    |         ^^^^^^ help: consider using `_output` instead
Dec 04 17:01:06.959 INFO [stderr]    |
Dec 04 17:01:06.959 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 17:01:06.959 INFO [stderr] 
Dec 04 17:01:06.991 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:01:06.991 INFO [stderr]   --> src/driver.rs:28:9
Dec 04 17:01:06.991 INFO [stderr]    |
Dec 04 17:01:06.991 INFO [stderr] 28 |     let mut src = match read_file(filename) {
Dec 04 17:01:06.991 INFO [stderr]    |         ----^^^
Dec 04 17:01:06.991 INFO [stderr]    |         |
Dec 04 17:01:06.991 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:01:06.991 INFO [stderr]    |
Dec 04 17:01:06.992 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 17:01:06.992 INFO [stderr] 
Dec 04 17:01:07.151 INFO [stderr] warning: unused variable: `output`
Dec 04 17:01:07.151 INFO [stderr]   --> src/main.rs:47:9
Dec 04 17:01:07.151 INFO [stderr]    |
Dec 04 17:01:07.151 INFO [stderr] 47 |     let output = match matches.opt_str("o") {
Dec 04 17:01:07.151 INFO [stderr]    |         ^^^^^^ help: consider using `_output` instead
Dec 04 17:01:07.151 INFO [stderr]    |
Dec 04 17:01:07.151 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 17:01:07.151 INFO [stderr] 
Dec 04 17:01:07.167 INFO [stderr] warning: variable does not need to be mutable
Dec 04 17:01:07.167 INFO [stderr]   --> src/driver.rs:28:9
Dec 04 17:01:07.167 INFO [stderr]    |
Dec 04 17:01:07.167 INFO [stderr] 28 |     let mut src = match read_file(filename) {
Dec 04 17:01:07.167 INFO [stderr]    |         ----^^^
Dec 04 17:01:07.167 INFO [stderr]    |         |
Dec 04 17:01:07.167 INFO [stderr]    |         help: remove this `mut`
Dec 04 17:01:07.167 INFO [stderr]    |
Dec 04 17:01:07.167 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 17:01:07.167 INFO [stderr] 
Dec 04 17:01:07.226 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Dec 04 17:01:07.235 INFO [stderr] su: No module specific data is present
Dec 04 17:01:07.871 INFO running `"docker" "inspect" "79b31fbd1e94032080222b46645a3ce923116da3eba7982cfb11beead1806a92"`
Dec 04 17:01:08.211 INFO running `"docker" "rm" "-f" "79b31fbd1e94032080222b46645a3ce923116da3eba7982cfb11beead1806a92"`
Dec 04 17:01:08.614 INFO [stdout] 79b31fbd1e94032080222b46645a3ce923116da3eba7982cfb11beead1806a92