Dec 19 08:18:38.897 INFO checking springbov/stupid-shell against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:18:38.897 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:18:39.141 INFO [stdout] 1e44511b9b848fb39ba52dcc6ca3b1210e77387eafe6a7835ee7340d6b5f8532
Dec 19 08:18:39.146 INFO running `"docker" "start" "-a" "1e44511b9b848fb39ba52dcc6ca3b1210e77387eafe6a7835ee7340d6b5f8532"`
Dec 19 08:18:39.764 INFO [stderr]     Checking stupid-shell v0.1.0 (/opt/crater/workdir)
Dec 19 08:18:39.901 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.901 INFO [stderr]   --> src/shell.rs:19:10
Dec 19 08:18:39.901 INFO [stderr]    |
Dec 19 08:18:39.901 INFO [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
Dec 19 08:18:39.901 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 19 08:18:39.901 INFO [stderr]    |
Dec 19 08:18:39.901 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:18:39.901 INFO [stderr] 
Dec 19 08:18:39.901 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.901 INFO [stderr]   --> src/shell.rs:37:12
Dec 19 08:18:39.901 INFO [stderr]    |
Dec 19 08:18:39.901 INFO [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
Dec 19 08:18:39.901 INFO [stderr]    |            ^ help: consider using `_x` instead
Dec 19 08:18:39.902 INFO [stderr] 
Dec 19 08:18:39.902 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.902 INFO [stderr]   --> src/shell.rs:45:11
Dec 19 08:18:39.902 INFO [stderr]    |
Dec 19 08:18:39.902 INFO [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
Dec 19 08:18:39.902 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 19 08:18:39.902 INFO [stderr] 
Dec 19 08:18:39.902 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.902 INFO [stderr]   --> src/shell.rs:53:9
Dec 19 08:18:39.902 INFO [stderr]    |
Dec 19 08:18:39.902 INFO [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
Dec 19 08:18:39.902 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 19 08:18:39.902 INFO [stderr] 
Dec 19 08:18:39.902 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.902 INFO [stderr]   --> src/shell.rs:62:16
Dec 19 08:18:39.902 INFO [stderr]    |
Dec 19 08:18:39.902 INFO [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
Dec 19 08:18:39.903 INFO [stderr]    |                ^ help: consider using `_x` instead
Dec 19 08:18:39.903 INFO [stderr] 
Dec 19 08:18:39.903 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.903 INFO [stderr]   --> src/shell.rs:70:11
Dec 19 08:18:39.903 INFO [stderr]    |
Dec 19 08:18:39.903 INFO [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
Dec 19 08:18:39.903 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 19 08:18:39.903 INFO [stderr] 
Dec 19 08:18:39.920 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.920 INFO [stderr]   --> src/shell.rs:19:10
Dec 19 08:18:39.921 INFO [stderr]    |
Dec 19 08:18:39.921 INFO [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
Dec 19 08:18:39.921 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 19 08:18:39.921 INFO [stderr]    |
Dec 19 08:18:39.921 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:18:39.921 INFO [stderr] 
Dec 19 08:18:39.921 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.921 INFO [stderr]   --> src/shell.rs:37:12
Dec 19 08:18:39.921 INFO [stderr]    |
Dec 19 08:18:39.921 INFO [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
Dec 19 08:18:39.921 INFO [stderr]    |            ^ help: consider using `_x` instead
Dec 19 08:18:39.921 INFO [stderr] 
Dec 19 08:18:39.921 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.922 INFO [stderr]   --> src/shell.rs:45:11
Dec 19 08:18:39.922 INFO [stderr]    |
Dec 19 08:18:39.922 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:18:39.922 INFO [stderr]   --> src/main.rs:12:5
Dec 19 08:18:39.922 INFO [stderr]    |
Dec 19 08:18:39.922 INFO [stderr] 12 |     io::stdout().flush();
Dec 19 08:18:39.922 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:18:39.922 INFO [stderr]    |
Dec 19 08:18:39.922 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 08:18:39.922 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:18:39.922 INFO [stderr] 
Dec 19 08:18:39.922 INFO [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
Dec 19 08:18:39.922 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 19 08:18:39.922 INFO [stderr] 
Dec 19 08:18:39.922 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.922 INFO [stderr]   --> src/shell.rs:53:9
Dec 19 08:18:39.922 INFO [stderr]    |
Dec 19 08:18:39.922 INFO [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
Dec 19 08:18:39.922 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 19 08:18:39.922 INFO [stderr] 
Dec 19 08:18:39.922 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.922 INFO [stderr]   --> src/shell.rs:62:16
Dec 19 08:18:39.922 INFO [stderr]    |
Dec 19 08:18:39.922 INFO [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
Dec 19 08:18:39.922 INFO [stderr]    |                ^ help: consider using `_x` instead
Dec 19 08:18:39.922 INFO [stderr] 
Dec 19 08:18:39.922 INFO [stderr] warning: unused variable: `x`
Dec 19 08:18:39.922 INFO [stderr]   --> src/shell.rs:70:11
Dec 19 08:18:39.922 INFO [stderr]    |
Dec 19 08:18:39.922 INFO [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
Dec 19 08:18:39.922 INFO [stderr]    |           ^ help: consider using `_x` instead
Dec 19 08:18:39.922 INFO [stderr] 
Dec 19 08:18:39.933 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:18:39.933 INFO [stderr]   --> src/main.rs:12:5
Dec 19 08:18:39.933 INFO [stderr]    |
Dec 19 08:18:39.933 INFO [stderr] 12 |     io::stdout().flush();
Dec 19 08:18:39.933 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:18:39.933 INFO [stderr]    |
Dec 19 08:18:39.933 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 08:18:39.933 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:18:39.933 INFO [stderr] 
Dec 19 08:18:39.949 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
Dec 19 08:18:40.196 INFO running `"docker" "inspect" "1e44511b9b848fb39ba52dcc6ca3b1210e77387eafe6a7835ee7340d6b5f8532"`
Dec 19 08:18:40.289 INFO running `"docker" "rm" "-f" "1e44511b9b848fb39ba52dcc6ca3b1210e77387eafe6a7835ee7340d6b5f8532"`
Dec 19 08:18:40.397 INFO [stdout] 1e44511b9b848fb39ba52dcc6ca3b1210e77387eafe6a7835ee7340d6b5f8532