Dec 04 12:17:14.921 INFO checking plopgrizzly/nahar against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 12:17:14.921 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 12:17:15.380 INFO [stdout] a07ec8fc4ada030e6e79dd73dc1da251d80accb99f3b971aa98076da825aa432
Dec 04 12:17:15.381 INFO running `"docker" "start" "-a" "a07ec8fc4ada030e6e79dd73dc1da251d80accb99f3b971aa98076da825aa432"`
Dec 04 12:17:16.477 INFO [stderr] usermod: no changes
Dec 04 12:17:16.565 INFO [stderr]     Checking nr v0.1.0 (/source)
Dec 04 12:17:16.893 INFO [stderr] warning: unused import: `std::fs`
Dec 04 12:17:16.893 INFO [stderr]  --> src/main.rs:8:5
Dec 04 12:17:16.893 INFO [stderr]   |
Dec 04 12:17:16.893 INFO [stderr] 8 | use std::fs;
Dec 04 12:17:16.893 INFO [stderr]   |     ^^^^^^^
Dec 04 12:17:16.894 INFO [stderr]   |
Dec 04 12:17:16.894 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 12:17:16.894 INFO [stderr] 
Dec 04 12:17:17.015 INFO [stderr] warning: unused import: `std::fs`
Dec 04 12:17:17.015 INFO [stderr]  --> src/main.rs:8:5
Dec 04 12:17:17.015 INFO [stderr]   |
Dec 04 12:17:17.015 INFO [stderr] 8 | use std::fs;
Dec 04 12:17:17.015 INFO [stderr]   |     ^^^^^^^
Dec 04 12:17:17.015 INFO [stderr]   |
Dec 04 12:17:17.015 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 12:17:17.015 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variable does not need to be mutable
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:43:6
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 43 |     let mut buf_reader = BufReader::new(file);
Dec 04 12:17:17.060 INFO [stderr]    |         ----^^^^^^^^^^
Dec 04 12:17:17.060 INFO [stderr]    |         |
Dec 04 12:17:17.060 INFO [stderr]    |         help: remove this `mut`
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Mod`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:18:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 18 |     Mod, // mod - module exports
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Obj`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:19:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 19 |     Obj, // obj - object exports
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Dep`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:20:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 20 |     Dep, // dep - dependency imports
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Fun`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:21:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 21 |     Fun, // fun - function
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Var`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:22:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 22 |     Var, // var - variable
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Con`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:23:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 23 |     Con, // con - constant
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Mac`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:24:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 24 |     Mac, // mac - macro
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Ffi`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:25:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 25 |     Ffi, // ffi - foreign function interface
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Fvi`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:26:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 26 |     Fvi, // fvi - foreign variable interface
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.060 INFO [stderr] warning: variant is never constructed: `Set`
Dec 04 12:17:17.060 INFO [stderr]   --> src/main.rs:27:2
Dec 04 12:17:17.060 INFO [stderr]    |
Dec 04 12:17:17.060 INFO [stderr] 27 |     Set, // set - set a built-in function for this module or object.
Dec 04 12:17:17.060 INFO [stderr]    |     ^^^
Dec 04 12:17:17.060 INFO [stderr] 
Dec 04 12:17:17.143 INFO [stderr] warning: variable does not need to be mutable
Dec 04 12:17:17.143 INFO [stderr]   --> src/main.rs:43:6
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr] 43 |     let mut buf_reader = BufReader::new(file);
Dec 04 12:17:17.143 INFO [stderr]    |         ----^^^^^^^^^^
Dec 04 12:17:17.143 INFO [stderr]    |         |
Dec 04 12:17:17.143 INFO [stderr]    |         help: remove this `mut`
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 12:17:17.143 INFO [stderr] 
Dec 04 12:17:17.143 INFO [stderr] warning: variant is never constructed: `Mod`
Dec 04 12:17:17.143 INFO [stderr]   --> src/main.rs:18:2
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr] 18 |     Mod, // mod - module exports
Dec 04 12:17:17.143 INFO [stderr]    |     ^^^
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 12:17:17.143 INFO [stderr] 
Dec 04 12:17:17.143 INFO [stderr] warning: variant is never constructed: `Obj`
Dec 04 12:17:17.143 INFO [stderr]   --> src/main.rs:19:2
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr] 19 |     Obj, // obj - object exports
Dec 04 12:17:17.143 INFO [stderr]    |     ^^^
Dec 04 12:17:17.143 INFO [stderr] 
Dec 04 12:17:17.143 INFO [stderr] warning: variant is never constructed: `Dep`
Dec 04 12:17:17.143 INFO [stderr]   --> src/main.rs:20:2
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr] 20 |     Dep, // dep - dependency imports
Dec 04 12:17:17.143 INFO [stderr]    |     ^^^
Dec 04 12:17:17.143 INFO [stderr] 
Dec 04 12:17:17.143 INFO [stderr] warning: variant is never constructed: `Fun`
Dec 04 12:17:17.143 INFO [stderr]   --> src/main.rs:21:2
Dec 04 12:17:17.143 INFO [stderr]    |
Dec 04 12:17:17.143 INFO [stderr] 21 |     Fun, // fun - function
Dec 04 12:17:17.143 INFO [stderr]    |     ^^^
Dec 04 12:17:17.143 INFO [stderr] 
Dec 04 12:17:17.143 INFO [stderr] warning: variant is never constructed: `Var`
Dec 04 12:17:17.144 INFO [stderr]   --> src/main.rs:22:2
Dec 04 12:17:17.144 INFO [stderr]    |
Dec 04 12:17:17.144 INFO [stderr] 22 |     Var, // var - variable
Dec 04 12:17:17.144 INFO [stderr]    |     ^^^
Dec 04 12:17:17.144 INFO [stderr] 
Dec 04 12:17:17.144 INFO [stderr] warning: variant is never constructed: `Con`
Dec 04 12:17:17.144 INFO [stderr]   --> src/main.rs:23:2
Dec 04 12:17:17.144 INFO [stderr]    |
Dec 04 12:17:17.144 INFO [stderr] 23 |     Con, // con - constant
Dec 04 12:17:17.144 INFO [stderr]    |     ^^^
Dec 04 12:17:17.144 INFO [stderr] 
Dec 04 12:17:17.144 INFO [stderr] warning: variant is never constructed: `Mac`
Dec 04 12:17:17.144 INFO [stderr]   --> src/main.rs:24:2
Dec 04 12:17:17.144 INFO [stderr]    |
Dec 04 12:17:17.144 INFO [stderr] 24 |     Mac, // mac - macro
Dec 04 12:17:17.144 INFO [stderr]    |     ^^^
Dec 04 12:17:17.144 INFO [stderr] 
Dec 04 12:17:17.144 INFO [stderr] warning: variant is never constructed: `Ffi`
Dec 04 12:17:17.144 INFO [stderr]   --> src/main.rs:25:2
Dec 04 12:17:17.144 INFO [stderr]    |
Dec 04 12:17:17.144 INFO [stderr] 25 |     Ffi, // ffi - foreign function interface
Dec 04 12:17:17.144 INFO [stderr]    |     ^^^
Dec 04 12:17:17.144 INFO [stderr] 
Dec 04 12:17:17.144 INFO [stderr] warning: variant is never constructed: `Fvi`
Dec 04 12:17:17.144 INFO [stderr]   --> src/main.rs:26:2
Dec 04 12:17:17.144 INFO [stderr]    |
Dec 04 12:17:17.144 INFO [stderr] 26 |     Fvi, // fvi - foreign variable interface
Dec 04 12:17:17.144 INFO [stderr]    |     ^^^
Dec 04 12:17:17.144 INFO [stderr] 
Dec 04 12:17:17.144 INFO [stderr] warning: variant is never constructed: `Set`
Dec 04 12:17:17.144 INFO [stderr]   --> src/main.rs:27:2
Dec 04 12:17:17.144 INFO [stderr]    |
Dec 04 12:17:17.144 INFO [stderr] 27 |     Set, // set - set a built-in function for this module or object.
Dec 04 12:17:17.144 INFO [stderr]    |     ^^^
Dec 04 12:17:17.144 INFO [stderr] 
Dec 04 12:17:17.185 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 04 12:17:17.185 INFO [stderr] su: No module specific data is present
Dec 04 12:17:18.063 INFO running `"docker" "inspect" "a07ec8fc4ada030e6e79dd73dc1da251d80accb99f3b971aa98076da825aa432"`
Dec 04 12:17:18.356 INFO running `"docker" "rm" "-f" "a07ec8fc4ada030e6e79dd73dc1da251d80accb99f3b971aa98076da825aa432"`
Dec 04 12:17:18.683 INFO [stdout] a07ec8fc4ada030e6e79dd73dc1da251d80accb99f3b971aa98076da825aa432