Dec 11 16:26:28.013 INFO checking jevankovich/rpncalc against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:26:28.013 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 16:26:28.500 INFO [stdout] 803d794c3b39363bacf9a7197e93fc5710ea04386fb349ebece72b233c00415f
Dec 11 16:26:28.502 INFO running `"docker" "start" "-a" "803d794c3b39363bacf9a7197e93fc5710ea04386fb349ebece72b233c00415f"`
Dec 11 16:26:29.807 INFO [stderr] usermod: no changes
Dec 11 16:26:29.922 INFO [stderr]     Checking rpncalc v0.1.0 (/source)
Dec 11 16:26:30.487 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 11 16:26:30.487 INFO [stderr]  --> src/main.rs:4:5
Dec 11 16:26:30.487 INFO [stderr]   |
Dec 11 16:26:30.487 INFO [stderr] 4 | use std::collections::HashMap;
Dec 11 16:26:30.487 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:26:30.487 INFO [stderr]   |
Dec 11 16:26:30.487 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:26:30.487 INFO [stderr] 
Dec 11 16:26:30.487 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 11 16:26:30.487 INFO [stderr]  --> src/main.rs:5:5
Dec 11 16:26:30.487 INFO [stderr]   |
Dec 11 16:26:30.487 INFO [stderr] 5 | use std::rc::Rc;
Dec 11 16:26:30.487 INFO [stderr]   |     ^^^^^^^^^^^
Dec 11 16:26:30.487 INFO [stderr] 
Dec 11 16:26:30.522 INFO [stderr] warning: unused variable: `err`
Dec 11 16:26:30.522 INFO [stderr]   --> src/main.rs:45:17
Dec 11 16:26:30.522 INFO [stderr]    |
Dec 11 16:26:30.522 INFO [stderr] 45 |             Err(err) => println!("Unknown word: \"{}\"", word),
Dec 11 16:26:30.522 INFO [stderr]    |                 ^^^ help: consider using `_err` instead
Dec 11 16:26:30.522 INFO [stderr]    |
Dec 11 16:26:30.522 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:26:30.522 INFO [stderr] 
Dec 11 16:26:30.544 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:26:30.545 INFO [stderr]   --> src/main.rs:78:5
Dec 11 16:26:30.545 INFO [stderr]    |
Dec 11 16:26:30.545 INFO [stderr] 78 |     stdout.flush();
Dec 11 16:26:30.545 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 16:26:30.545 INFO [stderr]    |
Dec 11 16:26:30.546 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 16:26:30.546 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:26:30.546 INFO [stderr] 
Dec 11 16:26:30.546 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:26:30.546 INFO [stderr]   --> src/main.rs:87:9
Dec 11 16:26:30.546 INFO [stderr]    |
Dec 11 16:26:30.546 INFO [stderr] 87 |         stdout.flush();
Dec 11 16:26:30.546 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Dec 11 16:26:30.546 INFO [stderr]    |
Dec 11 16:26:30.547 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:26:30.547 INFO [stderr] 
Dec 11 16:26:30.576 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 11 16:26:30.577 INFO [stderr]  --> src/main.rs:4:5
Dec 11 16:26:30.577 INFO [stderr]   |
Dec 11 16:26:30.577 INFO [stderr] 4 | use std::collections::HashMap;
Dec 11 16:26:30.577 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:26:30.578 INFO [stderr]   |
Dec 11 16:26:30.578 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:26:30.578 INFO [stderr] 
Dec 11 16:26:30.578 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 11 16:26:30.578 INFO [stderr]  --> src/main.rs:5:5
Dec 11 16:26:30.578 INFO [stderr]   |
Dec 11 16:26:30.578 INFO [stderr] 5 | use std::rc::Rc;
Dec 11 16:26:30.578 INFO [stderr]   |     ^^^^^^^^^^^
Dec 11 16:26:30.584 INFO [stderr] 
Dec 11 16:26:30.640 INFO [stderr] warning: unused variable: `err`
Dec 11 16:26:30.640 INFO [stderr]   --> src/main.rs:45:17
Dec 11 16:26:30.640 INFO [stderr]    |
Dec 11 16:26:30.640 INFO [stderr] 45 |             Err(err) => println!("Unknown word: \"{}\"", word),
Dec 11 16:26:30.640 INFO [stderr]    |                 ^^^ help: consider using `_err` instead
Dec 11 16:26:30.640 INFO [stderr]    |
Dec 11 16:26:30.640 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:26:30.640 INFO [stderr] 
Dec 11 16:26:30.672 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:26:30.673 INFO [stderr]   --> src/main.rs:78:5
Dec 11 16:26:30.673 INFO [stderr]    |
Dec 11 16:26:30.673 INFO [stderr] 78 |     stdout.flush();
Dec 11 16:26:30.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 11 16:26:30.673 INFO [stderr]    |
Dec 11 16:26:30.673 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 16:26:30.673 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:26:30.673 INFO [stderr] 
Dec 11 16:26:30.674 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 16:26:30.674 INFO [stderr]   --> src/main.rs:87:9
Dec 11 16:26:30.674 INFO [stderr]    |
Dec 11 16:26:30.674 INFO [stderr] 87 |         stdout.flush();
Dec 11 16:26:30.674 INFO [stderr]    |         ^^^^^^^^^^^^^^^
Dec 11 16:26:30.674 INFO [stderr]    |
Dec 11 16:26:30.674 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 16:26:30.674 INFO [stderr] 
Dec 11 16:26:30.705 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Dec 11 16:26:30.713 INFO [stderr] su: No module specific data is present
Dec 11 16:26:31.231 INFO running `"docker" "inspect" "803d794c3b39363bacf9a7197e93fc5710ea04386fb349ebece72b233c00415f"`
Dec 11 16:26:31.574 INFO running `"docker" "rm" "-f" "803d794c3b39363bacf9a7197e93fc5710ea04386fb349ebece72b233c00415f"`
Dec 11 16:26:31.861 INFO [stdout] 803d794c3b39363bacf9a7197e93fc5710ea04386fb349ebece72b233c00415f