Nov 29 17:43:31.101 INFO checking springbov/stupid-shell against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 17:43:31.101 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 17:43:31.456 INFO [stdout] 9f7016e5e68c59f1744a2d00df239c52e644d4263dce9e790662c5fddbdbc272
Nov 29 17:43:31.458 INFO running `"docker" "start" "-a" "9f7016e5e68c59f1744a2d00df239c52e644d4263dce9e790662c5fddbdbc272"`
Nov 29 17:43:32.476 INFO [stderr] usermod: no changes
Nov 29 17:43:32.518 INFO [stderr]     Checking stupid-shell v0.1.0 (/source)
Nov 29 17:43:32.802 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.802 INFO [stderr]   --> src/shell.rs:19:10
Nov 29 17:43:32.802 INFO [stderr]    |
Nov 29 17:43:32.802 INFO [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
Nov 29 17:43:32.802 INFO [stderr]    |          ^ help: consider using `_x` instead
Nov 29 17:43:32.802 INFO [stderr]    |
Nov 29 17:43:32.802 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:43:32.802 INFO [stderr] 
Nov 29 17:43:32.802 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.802 INFO [stderr]   --> src/shell.rs:37:12
Nov 29 17:43:32.802 INFO [stderr]    |
Nov 29 17:43:32.802 INFO [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
Nov 29 17:43:32.802 INFO [stderr]    |            ^ help: consider using `_x` instead
Nov 29 17:43:32.802 INFO [stderr] 
Nov 29 17:43:32.802 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.802 INFO [stderr]   --> src/shell.rs:45:11
Nov 29 17:43:32.802 INFO [stderr]    |
Nov 29 17:43:32.802 INFO [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
Nov 29 17:43:32.802 INFO [stderr]    |           ^ help: consider using `_x` instead
Nov 29 17:43:32.802 INFO [stderr] 
Nov 29 17:43:32.802 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.802 INFO [stderr]   --> src/shell.rs:53:9
Nov 29 17:43:32.802 INFO [stderr]    |
Nov 29 17:43:32.802 INFO [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
Nov 29 17:43:32.802 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 29 17:43:32.802 INFO [stderr] 
Nov 29 17:43:32.802 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.803 INFO [stderr]   --> src/shell.rs:62:16
Nov 29 17:43:32.803 INFO [stderr]    |
Nov 29 17:43:32.803 INFO [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
Nov 29 17:43:32.803 INFO [stderr]    |                ^ help: consider using `_x` instead
Nov 29 17:43:32.803 INFO [stderr] 
Nov 29 17:43:32.803 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.803 INFO [stderr]   --> src/shell.rs:70:11
Nov 29 17:43:32.803 INFO [stderr]    |
Nov 29 17:43:32.803 INFO [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
Nov 29 17:43:32.803 INFO [stderr]    |           ^ help: consider using `_x` instead
Nov 29 17:43:32.803 INFO [stderr] 
Nov 29 17:43:32.825 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.825 INFO [stderr]   --> src/shell.rs:19:10
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr] 19 |   fn vim(x: Option<String>) -> Option<String>
Nov 29 17:43:32.825 INFO [stderr]    |          ^ help: consider using `_x` instead
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:43:32.825 INFO [stderr] 
Nov 29 17:43:32.825 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.825 INFO [stderr]   --> src/shell.rs:37:12
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr] 37 |   fn emacs(x: Option<String>) -> Option<String>
Nov 29 17:43:32.825 INFO [stderr]    |            ^ help: consider using `_x` instead
Nov 29 17:43:32.825 INFO [stderr] 
Nov 29 17:43:32.825 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.825 INFO [stderr]   --> src/shell.rs:45:11
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr] 45 |   fn nano(x: Option<String>) -> Option<String>
Nov 29 17:43:32.825 INFO [stderr]    |           ^ help: consider using `_x` instead
Nov 29 17:43:32.825 INFO [stderr] 
Nov 29 17:43:32.825 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.825 INFO [stderr]   --> src/shell.rs:53:9
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr] 53 |   fn ed(x: Option<String>) -> Option<String>
Nov 29 17:43:32.825 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 29 17:43:32.825 INFO [stderr] 
Nov 29 17:43:32.825 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.825 INFO [stderr]   --> src/shell.rs:62:16
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr] 62 |   fn butterfly(x: Option<String>) -> Option<String>
Nov 29 17:43:32.825 INFO [stderr]    |                ^ help: consider using `_x` instead
Nov 29 17:43:32.825 INFO [stderr] 
Nov 29 17:43:32.825 INFO [stderr] warning: unused variable: `x`
Nov 29 17:43:32.825 INFO [stderr]   --> src/shell.rs:70:11
Nov 29 17:43:32.825 INFO [stderr]    |
Nov 29 17:43:32.825 INFO [stderr] 70 |   fn life(x: Option<String>) -> Option<String>
Nov 29 17:43:32.825 INFO [stderr]    |           ^ help: consider using `_x` instead
Nov 29 17:43:32.825 INFO [stderr] 
Nov 29 17:43:32.834 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:43:32.834 INFO [stderr]   --> src/main.rs:12:5
Nov 29 17:43:32.834 INFO [stderr]    |
Nov 29 17:43:32.835 INFO [stderr] 12 |     io::stdout().flush();
Nov 29 17:43:32.835 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:43:32.835 INFO [stderr]    |
Nov 29 17:43:32.836 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 17:43:32.836 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:43:32.836 INFO [stderr] 
Nov 29 17:43:32.851 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 17:43:32.851 INFO [stderr]   --> src/main.rs:12:5
Nov 29 17:43:32.851 INFO [stderr]    |
Nov 29 17:43:32.851 INFO [stderr] 12 |     io::stdout().flush();
Nov 29 17:43:32.851 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:43:32.851 INFO [stderr]    |
Nov 29 17:43:32.851 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 17:43:32.851 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 17:43:32.851 INFO [stderr] 
Nov 29 17:43:32.883 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Nov 29 17:43:32.886 INFO [stderr] su: No module specific data is present
Nov 29 17:43:33.334 INFO running `"docker" "inspect" "9f7016e5e68c59f1744a2d00df239c52e644d4263dce9e790662c5fddbdbc272"`
Nov 29 17:43:33.615 INFO running `"docker" "rm" "-f" "9f7016e5e68c59f1744a2d00df239c52e644d4263dce9e790662c5fddbdbc272"`
Nov 29 17:43:33.797 INFO [stdout] 9f7016e5e68c59f1744a2d00df239c52e644d4263dce9e790662c5fddbdbc272