Nov 29 20:24:20.726 INFO checking plopgrizzly/nahar against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 20:24:20.726 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 29 20:24:21.232 INFO [stdout] 8833ce0711a1347c45747bfb730cb82276c3509d0001c865d151208bcc8a0d0e
Nov 29 20:24:21.236 INFO running `"docker" "start" "-a" "8833ce0711a1347c45747bfb730cb82276c3509d0001c865d151208bcc8a0d0e"`
Nov 29 20:24:22.561 INFO [stderr] usermod: no changes
Nov 29 20:24:22.616 INFO [stderr]     Checking nr v0.1.0 (/source)
Nov 29 20:24:23.048 INFO [stderr] warning: unused import: `std::fs`
Nov 29 20:24:23.048 INFO [stderr]  --> src/main.rs:8:5
Nov 29 20:24:23.048 INFO [stderr]   |
Nov 29 20:24:23.048 INFO [stderr] 8 | use std::fs;
Nov 29 20:24:23.048 INFO [stderr]   |     ^^^^^^^
Nov 29 20:24:23.048 INFO [stderr]   |
Nov 29 20:24:23.048 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 20:24:23.048 INFO [stderr] 
Nov 29 20:24:23.148 INFO [stderr] warning: unused import: `std::fs`
Nov 29 20:24:23.148 INFO [stderr]  --> src/main.rs:8:5
Nov 29 20:24:23.148 INFO [stderr]   |
Nov 29 20:24:23.148 INFO [stderr] 8 | use std::fs;
Nov 29 20:24:23.148 INFO [stderr]   |     ^^^^^^^
Nov 29 20:24:23.148 INFO [stderr]   |
Nov 29 20:24:23.148 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 20:24:23.148 INFO [stderr] 
Nov 29 20:24:23.212 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:24:23.212 INFO [stderr]   --> src/main.rs:43:6
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr] 43 |     let mut buf_reader = BufReader::new(file);
Nov 29 20:24:23.212 INFO [stderr]    |         ----^^^^^^^^^^
Nov 29 20:24:23.212 INFO [stderr]    |         |
Nov 29 20:24:23.212 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 20:24:23.212 INFO [stderr] 
Nov 29 20:24:23.212 INFO [stderr] warning: variant is never constructed: `Mod`
Nov 29 20:24:23.212 INFO [stderr]   --> src/main.rs:18:2
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr] 18 |     Mod, // mod - module exports
Nov 29 20:24:23.212 INFO [stderr]    |     ^^^
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 20:24:23.212 INFO [stderr] 
Nov 29 20:24:23.212 INFO [stderr] warning: variant is never constructed: `Obj`
Nov 29 20:24:23.212 INFO [stderr]   --> src/main.rs:19:2
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr] 19 |     Obj, // obj - object exports
Nov 29 20:24:23.212 INFO [stderr]    |     ^^^
Nov 29 20:24:23.212 INFO [stderr] 
Nov 29 20:24:23.212 INFO [stderr] warning: variant is never constructed: `Dep`
Nov 29 20:24:23.212 INFO [stderr]   --> src/main.rs:20:2
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr] 20 |     Dep, // dep - dependency imports
Nov 29 20:24:23.212 INFO [stderr]    |     ^^^
Nov 29 20:24:23.212 INFO [stderr] 
Nov 29 20:24:23.212 INFO [stderr] warning: variant is never constructed: `Fun`
Nov 29 20:24:23.212 INFO [stderr]   --> src/main.rs:21:2
Nov 29 20:24:23.212 INFO [stderr]    |
Nov 29 20:24:23.212 INFO [stderr] 21 |     Fun, // fun - function
Nov 29 20:24:23.212 INFO [stderr]    |     ^^^
Nov 29 20:24:23.213 INFO [stderr] 
Nov 29 20:24:23.216 INFO [stderr] warning: variant is never constructed: `Var`
Nov 29 20:24:23.216 INFO [stderr]   --> src/main.rs:22:2
Nov 29 20:24:23.216 INFO [stderr]    |
Nov 29 20:24:23.216 INFO [stderr] 22 |     Var, // var - variable
Nov 29 20:24:23.216 INFO [stderr]    |     ^^^
Nov 29 20:24:23.216 INFO [stderr] 
Nov 29 20:24:23.216 INFO [stderr] warning: variant is never constructed: `Con`
Nov 29 20:24:23.216 INFO [stderr]   --> src/main.rs:23:2
Nov 29 20:24:23.216 INFO [stderr]    |
Nov 29 20:24:23.216 INFO [stderr] 23 |     Con, // con - constant
Nov 29 20:24:23.216 INFO [stderr]    |     ^^^
Nov 29 20:24:23.216 INFO [stderr] 
Nov 29 20:24:23.216 INFO [stderr] warning: variant is never constructed: `Mac`
Nov 29 20:24:23.216 INFO [stderr]   --> src/main.rs:24:2
Nov 29 20:24:23.216 INFO [stderr]    |
Nov 29 20:24:23.216 INFO [stderr] 24 |     Mac, // mac - macro
Nov 29 20:24:23.216 INFO [stderr]    |     ^^^
Nov 29 20:24:23.216 INFO [stderr] 
Nov 29 20:24:23.216 INFO [stderr] warning: variant is never constructed: `Ffi`
Nov 29 20:24:23.216 INFO [stderr]   --> src/main.rs:25:2
Nov 29 20:24:23.216 INFO [stderr]    |
Nov 29 20:24:23.216 INFO [stderr] 25 |     Ffi, // ffi - foreign function interface
Nov 29 20:24:23.216 INFO [stderr]    |     ^^^
Nov 29 20:24:23.216 INFO [stderr] 
Nov 29 20:24:23.216 INFO [stderr] warning: variant is never constructed: `Fvi`
Nov 29 20:24:23.216 INFO [stderr]   --> src/main.rs:26:2
Nov 29 20:24:23.216 INFO [stderr]    |
Nov 29 20:24:23.216 INFO [stderr] 26 |     Fvi, // fvi - foreign variable interface
Nov 29 20:24:23.216 INFO [stderr]    |     ^^^
Nov 29 20:24:23.216 INFO [stderr] 
Nov 29 20:24:23.216 INFO [stderr] warning: variant is never constructed: `Set`
Nov 29 20:24:23.216 INFO [stderr]   --> src/main.rs:27:2
Nov 29 20:24:23.216 INFO [stderr]    |
Nov 29 20:24:23.216 INFO [stderr] 27 |     Set, // set - set a built-in function for this module or object.
Nov 29 20:24:23.216 INFO [stderr]    |     ^^^
Nov 29 20:24:23.216 INFO [stderr] 
Nov 29 20:24:23.368 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:24:23.368 INFO [stderr]   --> src/main.rs:43:6
Nov 29 20:24:23.368 INFO [stderr]    |
Nov 29 20:24:23.368 INFO [stderr] 43 |     let mut buf_reader = BufReader::new(file);
Nov 29 20:24:23.368 INFO [stderr]    |         ----^^^^^^^^^^
Nov 29 20:24:23.368 INFO [stderr]    |         |
Nov 29 20:24:23.368 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:24:23.368 INFO [stderr]    |
Nov 29 20:24:23.368 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 20:24:23.368 INFO [stderr] 
Nov 29 20:24:23.368 INFO [stderr] warning: variant is never constructed: `Mod`
Nov 29 20:24:23.368 INFO [stderr]   --> src/main.rs:18:2
Nov 29 20:24:23.368 INFO [stderr]    |
Nov 29 20:24:23.368 INFO [stderr] 18 |     Mod, // mod - module exports
Nov 29 20:24:23.368 INFO [stderr]    |     ^^^
Nov 29 20:24:23.368 INFO [stderr]    |
Nov 29 20:24:23.368 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 20:24:23.368 INFO [stderr] 
Nov 29 20:24:23.368 INFO [stderr] warning: variant is never constructed: `Obj`
Nov 29 20:24:23.368 INFO [stderr]   --> src/main.rs:19:2
Nov 29 20:24:23.368 INFO [stderr]    |
Nov 29 20:24:23.368 INFO [stderr] 19 |     Obj, // obj - object exports
Nov 29 20:24:23.368 INFO [stderr]    |     ^^^
Nov 29 20:24:23.368 INFO [stderr] 
Nov 29 20:24:23.368 INFO [stderr] warning: variant is never constructed: `Dep`
Nov 29 20:24:23.368 INFO [stderr]   --> src/main.rs:20:2
Nov 29 20:24:23.368 INFO [stderr]    |
Nov 29 20:24:23.368 INFO [stderr] 20 |     Dep, // dep - dependency imports
Nov 29 20:24:23.368 INFO [stderr]    |     ^^^
Nov 29 20:24:23.372 INFO [stderr] 
Nov 29 20:24:23.372 INFO [stderr] warning: variant is never constructed: `Fun`
Nov 29 20:24:23.372 INFO [stderr]   --> src/main.rs:21:2
Nov 29 20:24:23.372 INFO [stderr]    |
Nov 29 20:24:23.372 INFO [stderr] 21 |     Fun, // fun - function
Nov 29 20:24:23.372 INFO [stderr]    |     ^^^
Nov 29 20:24:23.372 INFO [stderr] 
Nov 29 20:24:23.372 INFO [stderr] warning: variant is never constructed: `Var`
Nov 29 20:24:23.372 INFO [stderr]   --> src/main.rs:22:2
Nov 29 20:24:23.372 INFO [stderr]    |
Nov 29 20:24:23.372 INFO [stderr] 22 |     Var, // var - variable
Nov 29 20:24:23.372 INFO [stderr]    |     ^^^
Nov 29 20:24:23.372 INFO [stderr] 
Nov 29 20:24:23.372 INFO [stderr] warning: variant is never constructed: `Con`
Nov 29 20:24:23.372 INFO [stderr]   --> src/main.rs:23:2
Nov 29 20:24:23.372 INFO [stderr]    |
Nov 29 20:24:23.372 INFO [stderr] 23 |     Con, // con - constant
Nov 29 20:24:23.372 INFO [stderr]    |     ^^^
Nov 29 20:24:23.372 INFO [stderr] 
Nov 29 20:24:23.372 INFO [stderr] warning: variant is never constructed: `Mac`
Nov 29 20:24:23.372 INFO [stderr]   --> src/main.rs:24:2
Nov 29 20:24:23.372 INFO [stderr]    |
Nov 29 20:24:23.372 INFO [stderr] 24 |     Mac, // mac - macro
Nov 29 20:24:23.372 INFO [stderr]    |     ^^^
Nov 29 20:24:23.372 INFO [stderr] 
Nov 29 20:24:23.372 INFO [stderr] warning: variant is never constructed: `Ffi`
Nov 29 20:24:23.372 INFO [stderr]   --> src/main.rs:25:2
Nov 29 20:24:23.372 INFO [stderr]    |
Nov 29 20:24:23.372 INFO [stderr] 25 |     Ffi, // ffi - foreign function interface
Nov 29 20:24:23.376 INFO [stderr]    |     ^^^
Nov 29 20:24:23.376 INFO [stderr] 
Nov 29 20:24:23.376 INFO [stderr] warning: variant is never constructed: `Fvi`
Nov 29 20:24:23.376 INFO [stderr]   --> src/main.rs:26:2
Nov 29 20:24:23.376 INFO [stderr]    |
Nov 29 20:24:23.376 INFO [stderr] 26 |     Fvi, // fvi - foreign variable interface
Nov 29 20:24:23.376 INFO [stderr]    |     ^^^
Nov 29 20:24:23.376 INFO [stderr] 
Nov 29 20:24:23.376 INFO [stderr] warning: variant is never constructed: `Set`
Nov 29 20:24:23.376 INFO [stderr]   --> src/main.rs:27:2
Nov 29 20:24:23.376 INFO [stderr]    |
Nov 29 20:24:23.376 INFO [stderr] 27 |     Set, // set - set a built-in function for this module or object.
Nov 29 20:24:23.376 INFO [stderr]    |     ^^^
Nov 29 20:24:23.376 INFO [stderr] 
Nov 29 20:24:23.401 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Nov 29 20:24:23.403 INFO [stderr] su: No module specific data is present
Nov 29 20:24:24.184 INFO running `"docker" "inspect" "8833ce0711a1347c45747bfb730cb82276c3509d0001c865d151208bcc8a0d0e"`
Nov 29 20:24:24.408 INFO running `"docker" "rm" "-f" "8833ce0711a1347c45747bfb730cb82276c3509d0001c865d151208bcc8a0d0e"`
Nov 29 20:24:24.696 INFO [stdout] 8833ce0711a1347c45747bfb730cb82276c3509d0001c865d151208bcc8a0d0e