Nov 28 03:43:18.876 INFO checking jacobvaneijk/dmr against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 03:43:18.878 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 03:43:19.378 INFO [stdout] 004f8d1329b283e35046799243ef12f81428e0adf6962c5d03b2a7d84be3f9a4
Nov 28 03:43:19.381 INFO running `"docker" "start" "-a" "004f8d1329b283e35046799243ef12f81428e0adf6962c5d03b2a7d84be3f9a4"`
Nov 28 03:43:21.325 INFO [stderr] usermod: no changes
Nov 28 03:43:21.440 INFO [stderr]     Checking dmr v0.1.0 (/source)
Nov 28 03:43:22.040 INFO [stderr] warning: unused variable: `output`
Nov 28 03:43:22.041 INFO [stderr]   --> src/main.rs:47:9
Nov 28 03:43:22.041 INFO [stderr]    |
Nov 28 03:43:22.042 INFO [stderr] 47 |     let output = match matches.opt_str("o") {
Nov 28 03:43:22.042 INFO [stderr]    |         ^^^^^^ help: consider using `_output` instead
Nov 28 03:43:22.043 INFO [stderr]    |
Nov 28 03:43:22.043 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:43:22.044 INFO [stderr] 
Nov 28 03:43:22.073 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:43:22.074 INFO [stderr]   --> src/driver.rs:28:9
Nov 28 03:43:22.074 INFO [stderr]    |
Nov 28 03:43:22.075 INFO [stderr] 28 |     let mut src = match read_file(filename) {
Nov 28 03:43:22.075 INFO [stderr]    |         ----^^^
Nov 28 03:43:22.076 INFO [stderr]    |         |
Nov 28 03:43:22.076 INFO [stderr]    |         help: remove this `mut`
Nov 28 03:43:22.076 INFO [stderr]    |
Nov 28 03:43:22.078 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 03:43:22.079 INFO [stderr] 
Nov 28 03:43:22.123 INFO [stderr] warning: unused variable: `output`
Nov 28 03:43:22.123 INFO [stderr]   --> src/main.rs:47:9
Nov 28 03:43:22.123 INFO [stderr]    |
Nov 28 03:43:22.124 INFO [stderr] 47 |     let output = match matches.opt_str("o") {
Nov 28 03:43:22.124 INFO [stderr]    |         ^^^^^^ help: consider using `_output` instead
Nov 28 03:43:22.124 INFO [stderr]    |
Nov 28 03:43:22.124 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:43:22.125 INFO [stderr] 
Nov 28 03:43:22.136 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:43:22.136 INFO [stderr]   --> src/driver.rs:28:9
Nov 28 03:43:22.136 INFO [stderr]    |
Nov 28 03:43:22.137 INFO [stderr] 28 |     let mut src = match read_file(filename) {
Nov 28 03:43:22.137 INFO [stderr]    |         ----^^^
Nov 28 03:43:22.137 INFO [stderr]    |         |
Nov 28 03:43:22.137 INFO [stderr]    |         help: remove this `mut`
Nov 28 03:43:22.138 INFO [stderr]    |
Nov 28 03:43:22.138 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 03:43:22.139 INFO [stderr] 
Nov 28 03:43:22.165 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Nov 28 03:43:22.169 INFO [stderr] su: No module specific data is present
Nov 28 03:43:23.240 INFO running `"docker" "inspect" "004f8d1329b283e35046799243ef12f81428e0adf6962c5d03b2a7d84be3f9a4"`
Nov 28 03:43:23.482 INFO running `"docker" "rm" "-f" "004f8d1329b283e35046799243ef12f81428e0adf6962c5d03b2a7d84be3f9a4"`
Nov 28 03:43:23.736 INFO [stdout] 004f8d1329b283e35046799243ef12f81428e0adf6962c5d03b2a7d84be3f9a4