Dec 17 22:02:14.360 INFO checking jroesch/mu against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:02:14.360 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/jroesch/mu:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:02:14.596 INFO [stdout] 3055970b05377c5099783ea7582a6e060a27ab87a0cc5ae67a4ab0573140c781
Dec 17 22:02:14.603 INFO running `"docker" "start" "-a" "3055970b05377c5099783ea7582a6e060a27ab87a0cc5ae67a4ab0573140c781"`
Dec 17 22:02:15.360 INFO [stderr]     Checking topological-sort v0.0.7
Dec 17 22:02:15.360 INFO [stderr]     Checking docopt v0.6.86
Dec 17 22:02:16.378 INFO [stderr]     Checking mu v0.1.1 (/opt/crater/workdir)
Dec 17 22:02:16.500 INFO [stderr] warning: unused import: `std::env`
Dec 17 22:02:16.500 INFO [stderr]  --> src/mu/lib.rs:5:5
Dec 17 22:02:16.500 INFO [stderr]   |
Dec 17 22:02:16.500 INFO [stderr] 5 | use std::env;
Dec 17 22:02:16.500 INFO [stderr]   |     ^^^^^^^^
Dec 17 22:02:16.500 INFO [stderr]   |
Dec 17 22:02:16.500 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:02:16.500 INFO [stderr] 
Dec 17 22:02:16.500 INFO [stderr] warning: unused import: `std::env`
Dec 17 22:02:16.500 INFO [stderr]  --> src/mu/lib.rs:5:5
Dec 17 22:02:16.500 INFO [stderr]   |
Dec 17 22:02:16.500 INFO [stderr] 5 | use std::env;
Dec 17 22:02:16.500 INFO [stderr]   |     ^^^^^^^^
Dec 17 22:02:16.500 INFO [stderr]   |
Dec 17 22:02:16.500 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:02:16.500 INFO [stderr] 
Dec 17 22:02:16.523 INFO [stderr] warning: unused variable: `command`
Dec 17 22:02:16.523 INFO [stderr]   --> src/mu/lib.rs:18:19
Dec 17 22:02:16.523 INFO [stderr]    |
Dec 17 22:02:16.523 INFO [stderr] 18 | pub fn initialize(command: Command) -> Result<(), error::Error> {
Dec 17 22:02:16.523 INFO [stderr]    |                   ^^^^^^^ help: consider using `_command` instead
Dec 17 22:02:16.523 INFO [stderr]    |
Dec 17 22:02:16.523 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:02:16.523 INFO [stderr] 
Dec 17 22:02:16.532 INFO [stderr] warning: unused variable: `command`
Dec 17 22:02:16.532 INFO [stderr]   --> src/mu/lib.rs:18:19
Dec 17 22:02:16.532 INFO [stderr]    |
Dec 17 22:02:16.532 INFO [stderr] 18 | pub fn initialize(command: Command) -> Result<(), error::Error> {
Dec 17 22:02:16.532 INFO [stderr]    |                   ^^^^^^^ help: consider using `_command` instead
Dec 17 22:02:16.532 INFO [stderr]    |
Dec 17 22:02:16.532 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:02:16.532 INFO [stderr] 
Dec 17 22:02:16.844 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Dec 17 22:02:17.197 INFO running `"docker" "inspect" "3055970b05377c5099783ea7582a6e060a27ab87a0cc5ae67a4ab0573140c781"`
Dec 17 22:02:17.257 INFO running `"docker" "rm" "-f" "3055970b05377c5099783ea7582a6e060a27ab87a0cc5ae67a4ab0573140c781"`
Dec 17 22:02:17.385 INFO [stdout] 3055970b05377c5099783ea7582a6e060a27ab87a0cc5ae67a4ab0573140c781