Dec 19 14:54:06.198 INFO checking jroesch/mu against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 14:54:06.199 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:54:06.417 INFO [stdout] 68cfa22f24bcc74295dab9794e3d4128d4cfa7d86617ac41f1d7f8a675746d99
Dec 19 14:54:06.419 INFO running `"docker" "start" "-a" "68cfa22f24bcc74295dab9794e3d4128d4cfa7d86617ac41f1d7f8a675746d99"`
Dec 19 14:54:07.125 INFO [stderr]     Checking topological-sort v0.0.7
Dec 19 14:54:07.148 INFO [stderr]     Checking docopt v0.6.86
Dec 19 14:54:08.224 INFO [stderr]     Checking mu v0.1.1 (/opt/crater/workdir)
Dec 19 14:54:08.384 INFO [stderr] warning: unused import: `std::env`
Dec 19 14:54:08.384 INFO [stderr]  --> src/mu/lib.rs:5:5
Dec 19 14:54:08.384 INFO [stderr]   |
Dec 19 14:54:08.384 INFO [stderr] 5 | use std::env;
Dec 19 14:54:08.384 INFO [stderr]   |     ^^^^^^^^
Dec 19 14:54:08.384 INFO [stderr]   |
Dec 19 14:54:08.384 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:54:08.384 INFO [stderr] 
Dec 19 14:54:08.417 INFO [stderr] warning: unused variable: `command`
Dec 19 14:54:08.417 INFO [stderr]   --> src/mu/lib.rs:18:19
Dec 19 14:54:08.417 INFO [stderr]    |
Dec 19 14:54:08.417 INFO [stderr] 18 | pub fn initialize(command: Command) -> Result<(), error::Error> {
Dec 19 14:54:08.417 INFO [stderr]    |                   ^^^^^^^ help: consider using `_command` instead
Dec 19 14:54:08.417 INFO [stderr]    |
Dec 19 14:54:08.417 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:54:08.417 INFO [stderr] 
Dec 19 14:54:08.425 INFO [stderr] warning: unused import: `std::env`
Dec 19 14:54:08.425 INFO [stderr]  --> src/mu/lib.rs:5:5
Dec 19 14:54:08.426 INFO [stderr]   |
Dec 19 14:54:08.426 INFO [stderr] 5 | use std::env;
Dec 19 14:54:08.426 INFO [stderr]   |     ^^^^^^^^
Dec 19 14:54:08.426 INFO [stderr]   |
Dec 19 14:54:08.426 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 14:54:08.426 INFO [stderr] 
Dec 19 14:54:08.461 INFO [stderr] warning: unused variable: `command`
Dec 19 14:54:08.461 INFO [stderr]   --> src/mu/lib.rs:18:19
Dec 19 14:54:08.461 INFO [stderr]    |
Dec 19 14:54:08.461 INFO [stderr] 18 | pub fn initialize(command: Command) -> Result<(), error::Error> {
Dec 19 14:54:08.462 INFO [stderr]    |                   ^^^^^^^ help: consider using `_command` instead
Dec 19 14:54:08.462 INFO [stderr]    |
Dec 19 14:54:08.462 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 14:54:08.462 INFO [stderr] 
Dec 19 14:54:08.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
Dec 19 14:54:09.157 INFO running `"docker" "inspect" "68cfa22f24bcc74295dab9794e3d4128d4cfa7d86617ac41f1d7f8a675746d99"`
Dec 19 14:54:09.305 INFO running `"docker" "rm" "-f" "68cfa22f24bcc74295dab9794e3d4128d4cfa7d86617ac41f1d7f8a675746d99"`
Dec 19 14:54:09.383 INFO [stdout] 68cfa22f24bcc74295dab9794e3d4128d4cfa7d86617ac41f1d7f8a675746d99