Nov 30 01:00:06.393 INFO checking jevankovich/rpncalc against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 01:00:06.393 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 30 01:00:06.788 INFO [stdout] 72c4f32f2b67ba38df84f8377c948970777e1499b9ffe148c86dbe21cc0f68f3
Nov 30 01:00:06.790 INFO running `"docker" "start" "-a" "72c4f32f2b67ba38df84f8377c948970777e1499b9ffe148c86dbe21cc0f68f3"`
Nov 30 01:00:08.260 INFO [stderr] usermod: no changes
Nov 30 01:00:08.320 INFO [stderr]     Checking rpncalc v0.1.0 (/source)
Nov 30 01:00:08.924 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 30 01:00:08.924 INFO [stderr]  --> src/main.rs:4:5
Nov 30 01:00:08.924 INFO [stderr]   |
Nov 30 01:00:08.924 INFO [stderr] 4 | use std::collections::HashMap;
Nov 30 01:00:08.924 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 01:00:08.924 INFO [stderr]   |
Nov 30 01:00:08.924 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 01:00:08.924 INFO [stderr] 
Nov 30 01:00:08.924 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 30 01:00:08.924 INFO [stderr]  --> src/main.rs:5:5
Nov 30 01:00:08.924 INFO [stderr]   |
Nov 30 01:00:08.924 INFO [stderr] 5 | use std::rc::Rc;
Nov 30 01:00:08.924 INFO [stderr]   |     ^^^^^^^^^^^
Nov 30 01:00:08.924 INFO [stderr] 
Nov 30 01:00:09.004 INFO [stderr] warning: unused variable: `err`
Nov 30 01:00:09.004 INFO [stderr]   --> src/main.rs:45:17
Nov 30 01:00:09.004 INFO [stderr]    |
Nov 30 01:00:09.004 INFO [stderr] 45 |             Err(err) => println!("Unknown word: \"{}\"", word),
Nov 30 01:00:09.004 INFO [stderr]    |                 ^^^ help: consider using `_err` instead
Nov 30 01:00:09.004 INFO [stderr]    |
Nov 30 01:00:09.004 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 01:00:09.004 INFO [stderr] 
Nov 30 01:00:09.027 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:00:09.027 INFO [stderr]   --> src/main.rs:78:5
Nov 30 01:00:09.027 INFO [stderr]    |
Nov 30 01:00:09.027 INFO [stderr] 78 |     stdout.flush();
Nov 30 01:00:09.027 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 01:00:09.027 INFO [stderr]    |
Nov 30 01:00:09.027 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 01:00:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:00:09.037 INFO [stderr] 
Nov 30 01:00:09.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:00:09.037 INFO [stderr]   --> src/main.rs:87:9
Nov 30 01:00:09.037 INFO [stderr]    |
Nov 30 01:00:09.037 INFO [stderr] 87 |         stdout.flush();
Nov 30 01:00:09.037 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Nov 30 01:00:09.037 INFO [stderr]    |
Nov 30 01:00:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:00:09.037 INFO [stderr] 
Nov 30 01:00:09.060 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 30 01:00:09.060 INFO [stderr]  --> src/main.rs:4:5
Nov 30 01:00:09.060 INFO [stderr]   |
Nov 30 01:00:09.061 INFO [stderr] 4 | use std::collections::HashMap;
Nov 30 01:00:09.061 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 01:00:09.061 INFO [stderr]   |
Nov 30 01:00:09.062 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 01:00:09.068 INFO [stderr] 
Nov 30 01:00:09.068 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 30 01:00:09.068 INFO [stderr]  --> src/main.rs:5:5
Nov 30 01:00:09.068 INFO [stderr]   |
Nov 30 01:00:09.068 INFO [stderr] 5 | use std::rc::Rc;
Nov 30 01:00:09.068 INFO [stderr]   |     ^^^^^^^^^^^
Nov 30 01:00:09.068 INFO [stderr] 
Nov 30 01:00:09.140 INFO [stderr] warning: unused variable: `err`
Nov 30 01:00:09.141 INFO [stderr]   --> src/main.rs:45:17
Nov 30 01:00:09.141 INFO [stderr]    |
Nov 30 01:00:09.141 INFO [stderr] 45 |             Err(err) => println!("Unknown word: \"{}\"", word),
Nov 30 01:00:09.141 INFO [stderr]    |                 ^^^ help: consider using `_err` instead
Nov 30 01:00:09.144 INFO [stderr]    |
Nov 30 01:00:09.144 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 01:00:09.144 INFO [stderr] 
Nov 30 01:00:09.174 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:00:09.174 INFO [stderr]   --> src/main.rs:78:5
Nov 30 01:00:09.174 INFO [stderr]    |
Nov 30 01:00:09.174 INFO [stderr] 78 |     stdout.flush();
Nov 30 01:00:09.174 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 30 01:00:09.175 INFO [stderr]    |
Nov 30 01:00:09.175 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 01:00:09.175 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:00:09.175 INFO [stderr] 
Nov 30 01:00:09.176 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:00:09.176 INFO [stderr]   --> src/main.rs:87:9
Nov 30 01:00:09.176 INFO [stderr]    |
Nov 30 01:00:09.176 INFO [stderr] 87 |         stdout.flush();
Nov 30 01:00:09.176 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Nov 30 01:00:09.176 INFO [stderr]    |
Nov 30 01:00:09.176 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:00:09.176 INFO [stderr] 
Nov 30 01:00:09.199 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Nov 30 01:00:09.202 INFO [stderr] su: No module specific data is present
Nov 30 01:00:10.240 INFO running `"docker" "inspect" "72c4f32f2b67ba38df84f8377c948970777e1499b9ffe148c86dbe21cc0f68f3"`
Nov 30 01:00:10.500 INFO running `"docker" "rm" "-f" "72c4f32f2b67ba38df84f8377c948970777e1499b9ffe148c86dbe21cc0f68f3"`
Nov 30 01:00:10.758 INFO [stdout] 72c4f32f2b67ba38df84f8377c948970777e1499b9ffe148c86dbe21cc0f68f3