Nov 28 03:23:34.383 INFO checking jevankovich/rpncalc against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 03:23:34.385 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 03:23:34.815 INFO [stdout] c99eb2f4a2bdd00b5ca1557ec8f66840224a99a278356ce3e2678d763f85d911
Nov 28 03:23:34.818 INFO running `"docker" "start" "-a" "c99eb2f4a2bdd00b5ca1557ec8f66840224a99a278356ce3e2678d763f85d911"`
Nov 28 03:23:35.715 INFO [stderr] usermod: no changes
Nov 28 03:23:35.766 INFO [stderr]     Checking rpncalc v0.1.0 (/source)
Nov 28 03:23:36.056 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 03:23:36.057 INFO [stderr]  --> src/main.rs:4:5
Nov 28 03:23:36.057 INFO [stderr]   |
Nov 28 03:23:36.057 INFO [stderr] 4 | use std::collections::HashMap;
Nov 28 03:23:36.057 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:23:36.057 INFO [stderr]   |
Nov 28 03:23:36.057 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:23:36.057 INFO [stderr] 
Nov 28 03:23:36.057 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 28 03:23:36.057 INFO [stderr]  --> src/main.rs:5:5
Nov 28 03:23:36.057 INFO [stderr]   |
Nov 28 03:23:36.057 INFO [stderr] 5 | use std::rc::Rc;
Nov 28 03:23:36.057 INFO [stderr]   |     ^^^^^^^^^^^
Nov 28 03:23:36.057 INFO [stderr] 
Nov 28 03:23:36.104 INFO [stderr] warning: unused variable: `err`
Nov 28 03:23:36.104 INFO [stderr]   --> src/main.rs:45:17
Nov 28 03:23:36.104 INFO [stderr]    |
Nov 28 03:23:36.104 INFO [stderr] 45 |             Err(err) => println!("Unknown word: \"{}\"", word),
Nov 28 03:23:36.104 INFO [stderr]    |                 ^^^ help: consider using `_err` instead
Nov 28 03:23:36.104 INFO [stderr]    |
Nov 28 03:23:36.104 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:23:36.104 INFO [stderr] 
Nov 28 03:23:36.126 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:23:36.126 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 03:23:36.126 INFO [stderr]  --> src/main.rs:4:5
Nov 28 03:23:36.126 INFO [stderr]   --> src/main.rs:78:5
Nov 28 03:23:36.126 INFO [stderr]   |
Nov 28 03:23:36.126 INFO [stderr]    |
Nov 28 03:23:36.126 INFO [stderr] 4 | use std::collections::HashMap;
Nov 28 03:23:36.126 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:23:36.126 INFO [stderr] 78 |     stdout.flush();
Nov 28 03:23:36.126 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 03:23:36.126 INFO [stderr]   |
Nov 28 03:23:36.126 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:23:36.126 INFO [stderr] 
Nov 28 03:23:36.126 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 28 03:23:36.126 INFO [stderr]    |
Nov 28 03:23:36.126 INFO [stderr]  --> src/main.rs:5:5
Nov 28 03:23:36.126 INFO [stderr]   |
Nov 28 03:23:36.126 INFO [stderr] 5 | use std::rc::Rc;
Nov 28 03:23:36.126 INFO [stderr]   |     ^^^^^^^^^^^
Nov 28 03:23:36.126 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 03:23:36.126 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:23:36.126 INFO [stderr] 
Nov 28 03:23:36.126 INFO [stderr] 
Nov 28 03:23:36.126 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:23:36.126 INFO [stderr]   --> src/main.rs:87:9
Nov 28 03:23:36.126 INFO [stderr]    |
Nov 28 03:23:36.126 INFO [stderr] 87 |         stdout.flush();
Nov 28 03:23:36.126 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Nov 28 03:23:36.126 INFO [stderr]    |
Nov 28 03:23:36.126 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:23:36.126 INFO [stderr] 
Nov 28 03:23:36.192 INFO [stderr] warning: unused variable: `err`
Nov 28 03:23:36.192 INFO [stderr]   --> src/main.rs:45:17
Nov 28 03:23:36.192 INFO [stderr]    |
Nov 28 03:23:36.192 INFO [stderr] 45 |             Err(err) => println!("Unknown word: \"{}\"", word),
Nov 28 03:23:36.192 INFO [stderr]    |                 ^^^ help: consider using `_err` instead
Nov 28 03:23:36.192 INFO [stderr]    |
Nov 28 03:23:36.192 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:23:36.192 INFO [stderr] 
Nov 28 03:23:36.214 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:23:36.214 INFO [stderr]   --> src/main.rs:78:5
Nov 28 03:23:36.214 INFO [stderr]    |
Nov 28 03:23:36.214 INFO [stderr] 78 |     stdout.flush();
Nov 28 03:23:36.214 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 03:23:36.214 INFO [stderr]    |
Nov 28 03:23:36.214 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 03:23:36.214 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:23:36.214 INFO [stderr] 
Nov 28 03:23:36.214 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:23:36.214 INFO [stderr]   --> src/main.rs:87:9
Nov 28 03:23:36.214 INFO [stderr]    |
Nov 28 03:23:36.214 INFO [stderr] 87 |         stdout.flush();
Nov 28 03:23:36.214 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Nov 28 03:23:36.214 INFO [stderr]    |
Nov 28 03:23:36.214 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:23:36.214 INFO [stderr] 
Nov 28 03:23:36.248 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Nov 28 03:23:36.248 INFO [stderr] su: No module specific data is present
Nov 28 03:23:36.940 INFO running `"docker" "inspect" "c99eb2f4a2bdd00b5ca1557ec8f66840224a99a278356ce3e2678d763f85d911"`
Nov 28 03:23:37.194 INFO running `"docker" "rm" "-f" "c99eb2f4a2bdd00b5ca1557ec8f66840224a99a278356ce3e2678d763f85d911"`
Nov 28 03:23:37.415 INFO [stdout] c99eb2f4a2bdd00b5ca1557ec8f66840224a99a278356ce3e2678d763f85d911