Dec 17 14:53:07.441 INFO checking springbov/stupid-shell against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 14:53:07.441 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/springbov/stupid-shell:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 14:53:07.651 INFO [stdout] cf930e65f0bef63a7e1ca920914d06d0402ea55ff34d7b5e54c0088207408646
Dec 17 14:53:07.653 INFO running `"docker" "start" "-a" "cf930e65f0bef63a7e1ca920914d06d0402ea55ff34d7b5e54c0088207408646"`
Dec 17 14:53:08.111 INFO [stderr]     Checking stupid-shell v0.1.0 (/opt/crater/workdir)
Dec 17 14:53:08.243 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.243 INFO [stderr]   --> src/shell.rs:19:10
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
Dec 17 14:53:08.243 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 14:53:08.243 INFO [stderr] 
Dec 17 14:53:08.243 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.243 INFO [stderr]   --> src/shell.rs:37:12
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
Dec 17 14:53:08.243 INFO [stderr]    |            ^ help: consider using `_x` instead
Dec 17 14:53:08.243 INFO [stderr] 
Dec 17 14:53:08.243 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.243 INFO [stderr]   --> src/shell.rs:45:11
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
Dec 17 14:53:08.243 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 17 14:53:08.243 INFO [stderr] 
Dec 17 14:53:08.243 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.243 INFO [stderr]   --> src/shell.rs:53:9
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
Dec 17 14:53:08.243 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 17 14:53:08.243 INFO [stderr] 
Dec 17 14:53:08.243 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.243 INFO [stderr]   --> src/shell.rs:62:16
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
Dec 17 14:53:08.243 INFO [stderr]    |                ^ help: consider using `_x` instead
Dec 17 14:53:08.243 INFO [stderr] 
Dec 17 14:53:08.243 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.243 INFO [stderr]   --> src/shell.rs:70:11
Dec 17 14:53:08.243 INFO [stderr]    |
Dec 17 14:53:08.243 INFO [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
Dec 17 14:53:08.243 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 17 14:53:08.243 INFO [stderr] 
Dec 17 14:53:08.248 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.248 INFO [stderr]   --> src/shell.rs:19:10
Dec 17 14:53:08.248 INFO [stderr]    |
Dec 17 14:53:08.248 INFO [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
Dec 17 14:53:08.248 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 17 14:53:08.248 INFO [stderr]    |
Dec 17 14:53:08.248 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 14:53:08.248 INFO [stderr] 
Dec 17 14:53:08.248 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.248 INFO [stderr]   --> src/shell.rs:37:12
Dec 17 14:53:08.248 INFO [stderr]    |
Dec 17 14:53:08.248 INFO [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
Dec 17 14:53:08.248 INFO [stderr]    |            ^ help: consider using `_x` instead
Dec 17 14:53:08.248 INFO [stderr] 
Dec 17 14:53:08.248 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.248 INFO [stderr]   --> src/shell.rs:45:11
Dec 17 14:53:08.248 INFO [stderr]    |
Dec 17 14:53:08.248 INFO [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
Dec 17 14:53:08.248 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 17 14:53:08.248 INFO [stderr] 
Dec 17 14:53:08.248 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.248 INFO [stderr]   --> src/shell.rs:53:9
Dec 17 14:53:08.248 INFO [stderr]    |
Dec 17 14:53:08.248 INFO [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
Dec 17 14:53:08.248 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 17 14:53:08.248 INFO [stderr] 
Dec 17 14:53:08.251 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.251 INFO [stderr]   --> src/shell.rs:62:16
Dec 17 14:53:08.251 INFO [stderr]    |
Dec 17 14:53:08.251 INFO [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
Dec 17 14:53:08.251 INFO [stderr]    |                ^ help: consider using `_x` instead
Dec 17 14:53:08.251 INFO [stderr] 
Dec 17 14:53:08.251 INFO [stderr] warning: unused variable: `x`
Dec 17 14:53:08.251 INFO [stderr]   --> src/shell.rs:70:11
Dec 17 14:53:08.251 INFO [stderr]    |
Dec 17 14:53:08.251 INFO [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
Dec 17 14:53:08.251 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 17 14:53:08.251 INFO [stderr] 
Dec 17 14:53:08.258 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 14:53:08.258 INFO [stderr]   --> src/main.rs:12:5
Dec 17 14:53:08.258 INFO [stderr]    |
Dec 17 14:53:08.258 INFO [stderr] 12 |     io::stdout().flush();
Dec 17 14:53:08.258 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 14:53:08.258 INFO [stderr]    |
Dec 17 14:53:08.258 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 14:53:08.258 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 14:53:08.258 INFO [stderr] 
Dec 17 14:53:08.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 14:53:08.273 INFO [stderr]   --> src/main.rs:12:5
Dec 17 14:53:08.273 INFO [stderr]    |
Dec 17 14:53:08.273 INFO [stderr] 12 |     io::stdout().flush();
Dec 17 14:53:08.273 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 14:53:08.273 INFO [stderr]    |
Dec 17 14:53:08.273 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 14:53:08.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 14:53:08.273 INFO [stderr] 
Dec 17 14:53:08.288 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
Dec 17 14:53:08.533 INFO running `"docker" "inspect" "cf930e65f0bef63a7e1ca920914d06d0402ea55ff34d7b5e54c0088207408646"`
Dec 17 14:53:08.626 INFO running `"docker" "rm" "-f" "cf930e65f0bef63a7e1ca920914d06d0402ea55ff34d7b5e54c0088207408646"`
Dec 17 14:53:08.730 INFO [stdout] cf930e65f0bef63a7e1ca920914d06d0402ea55ff34d7b5e54c0088207408646