Nov 29 20:24:22.979 INFO checking plopgrizzly/nahar against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 20:24:22.979 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 20:24:23.484 INFO [stdout] a1bb17038bc0f32adc48e7721db36328bf8a39293e74944880492d4d05f4906b
Nov 29 20:24:23.486 INFO running `"docker" "start" "-a" "a1bb17038bc0f32adc48e7721db36328bf8a39293e74944880492d4d05f4906b"`
Nov 29 20:24:25.120 INFO [stderr] usermod: no changes
Nov 29 20:24:25.184 INFO [stderr]     Checking nr v0.1.0 (/source)
Nov 29 20:24:25.469 INFO [stderr] warning: unused import: `std::fs`
Nov 29 20:24:25.469 INFO [stderr]  --> src/main.rs:8:5
Nov 29 20:24:25.469 INFO [stderr]   |
Nov 29 20:24:25.469 INFO [stderr] 8 | use std::fs;
Nov 29 20:24:25.469 INFO [stderr]   |     ^^^^^^^
Nov 29 20:24:25.469 INFO [stderr]   |
Nov 29 20:24:25.469 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 20:24:25.469 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:43:6
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 43 |     let mut buf_reader = BufReader::new(file);
Nov 29 20:24:25.574 INFO [stderr]    |         ----^^^^^^^^^^
Nov 29 20:24:25.574 INFO [stderr]    |         |
Nov 29 20:24:25.574 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Mod`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:18:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 18 |     Mod, // mod - module exports
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Obj`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:19:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 19 |     Obj, // obj - object exports
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Dep`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:20:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 20 |     Dep, // dep - dependency imports
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Fun`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:21:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 21 |     Fun, // fun - function
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Var`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:22:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 22 |     Var, // var - variable
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Con`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:23:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 23 |     Con, // con - constant
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Mac`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:24:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 24 |     Mac, // mac - macro
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Ffi`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:25:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 25 |     Ffi, // ffi - foreign function interface
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Fvi`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:26:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 26 |     Fvi, // fvi - foreign variable interface
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.574 INFO [stderr] warning: variant is never constructed: `Set`
Nov 29 20:24:25.574 INFO [stderr]   --> src/main.rs:27:2
Nov 29 20:24:25.574 INFO [stderr]    |
Nov 29 20:24:25.574 INFO [stderr] 27 |     Set, // set - set a built-in function for this module or object.
Nov 29 20:24:25.574 INFO [stderr]    |     ^^^
Nov 29 20:24:25.574 INFO [stderr] 
Nov 29 20:24:25.684 INFO [stderr] warning: unused import: `std::fs`
Nov 29 20:24:25.684 INFO [stderr]  --> src/main.rs:8:5
Nov 29 20:24:25.684 INFO [stderr]   |
Nov 29 20:24:25.684 INFO [stderr] 8 | use std::fs;
Nov 29 20:24:25.684 INFO [stderr]   |     ^^^^^^^
Nov 29 20:24:25.684 INFO [stderr]   |
Nov 29 20:24:25.684 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 20:24:25.684 INFO [stderr] 
Nov 29 20:24:25.852 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:24:25.852 INFO [stderr]   --> src/main.rs:43:6
Nov 29 20:24:25.852 INFO [stderr]    |
Nov 29 20:24:25.852 INFO [stderr] 43 |     let mut buf_reader = BufReader::new(file);
Nov 29 20:24:25.853 INFO [stderr]    |         ----^^^^^^^^^^
Nov 29 20:24:25.853 INFO [stderr]    |         |
Nov 29 20:24:25.853 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Mod`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:18:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 18 |     Mod, // mod - module exports
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Obj`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:19:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 19 |     Obj, // obj - object exports
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Dep`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:20:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 20 |     Dep, // dep - dependency imports
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Fun`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:21:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 21 |     Fun, // fun - function
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Var`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:22:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 22 |     Var, // var - variable
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Con`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:23:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 23 |     Con, // con - constant
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Mac`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:24:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 24 |     Mac, // mac - macro
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Ffi`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:25:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 25 |     Ffi, // ffi - foreign function interface
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Fvi`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:26:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 26 |     Fvi, // fvi - foreign variable interface
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.853 INFO [stderr] warning: variant is never constructed: `Set`
Nov 29 20:24:25.853 INFO [stderr]   --> src/main.rs:27:2
Nov 29 20:24:25.853 INFO [stderr]    |
Nov 29 20:24:25.853 INFO [stderr] 27 |     Set, // set - set a built-in function for this module or object.
Nov 29 20:24:25.853 INFO [stderr]    |     ^^^
Nov 29 20:24:25.853 INFO [stderr] 
Nov 29 20:24:25.885 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Nov 29 20:24:25.887 INFO [stderr] su: No module specific data is present
Nov 29 20:24:26.661 INFO running `"docker" "inspect" "a1bb17038bc0f32adc48e7721db36328bf8a39293e74944880492d4d05f4906b"`
Nov 29 20:24:27.000 INFO running `"docker" "rm" "-f" "a1bb17038bc0f32adc48e7721db36328bf8a39293e74944880492d4d05f4906b"`
Nov 29 20:24:27.320 INFO [stdout] a1bb17038bc0f32adc48e7721db36328bf8a39293e74944880492d4d05f4906b