Dec 04 13:24:40.285 INFO checking nathantypanski/rash against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 13:24:40.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 13:24:40.844 INFO [stdout] fd3cccf42048a6018b9ebb6e77e95109c116e27c0f930e763b041e27d6ca9e60
Dec 04 13:24:40.846 INFO running `"docker" "start" "-a" "fd3cccf42048a6018b9ebb6e77e95109c116e27c0f930e763b041e27d6ca9e60"`
Dec 04 13:24:42.439 INFO [stderr] usermod: no changes
Dec 04 13:24:42.523 INFO [stderr]     Checking nix v0.5.1
Dec 04 13:24:45.615 INFO [stderr]     Checking rustyline v1.0.0
Dec 04 13:24:46.405 INFO [stderr]     Checking rash v0.1.0 (/source)
Dec 04 13:24:46.788 INFO [stderr] warning: unused imports: `Read`, `Stderr`, `Write`, `self`
Dec 04 13:24:46.788 INFO [stderr]   --> src/main.rs:21:15
Dec 04 13:24:46.788 INFO [stderr]    |
Dec 04 13:24:46.788 INFO [stderr] 21 | use std::io::{self, Read, Stderr, Write};
Dec 04 13:24:46.788 INFO [stderr]    |               ^^^^  ^^^^  ^^^^^^  ^^^^^
Dec 04 13:24:46.788 INFO [stderr]    |
Dec 04 13:24:46.788 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 13:24:46.788 INFO [stderr] 
Dec 04 13:24:46.891 INFO [stderr] warning: unused variable: `words`
Dec 04 13:24:46.891 INFO [stderr]   --> src/main.rs:63:27
Dec 04 13:24:46.891 INFO [stderr]    |
Dec 04 13:24:46.891 INFO [stderr] 63 |     fn history(&mut self, words: std::str::SplitWhitespace) {
Dec 04 13:24:46.891 INFO [stderr]    |                           ^^^^^ help: consider using `_words` instead
Dec 04 13:24:46.899 INFO [stderr]    |
Dec 04 13:24:46.899 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 13:24:46.899 INFO [stderr] 
Dec 04 13:24:46.921 INFO [stderr] warning: unnecessary `unsafe` block
Dec 04 13:24:46.921 INFO [stderr]    --> src/main.rs:113:17
Dec 04 13:24:46.921 INFO [stderr]     |
Dec 04 13:24:46.921 INFO [stderr] 113 |                 unsafe {
Dec 04 13:24:46.922 INFO [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
Dec 04 13:24:46.922 INFO [stderr]     |
Dec 04 13:24:46.922 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 04 13:24:46.922 INFO [stderr] 
Dec 04 13:24:46.922 INFO [stderr] warning: method is never used: `save_history`
Dec 04 13:24:46.922 INFO [stderr]    --> src/main.rs:125:5
Dec 04 13:24:46.922 INFO [stderr]     |
Dec 04 13:24:46.922 INFO [stderr] 125 |     fn save_history(&mut self) {
Dec 04 13:24:46.922 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:24:46.922 INFO [stderr]     |
Dec 04 13:24:46.922 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 13:24:46.922 INFO [stderr] 
Dec 04 13:24:46.922 INFO [stderr] warning: `extern` block uses type `fn(u32)` which is not FFI-safe: this function pointer has Rust-specific calling convention
Dec 04 13:24:46.922 INFO [stderr]   --> src/main.rs:33:46
Dec 04 13:24:46.922 INFO [stderr]    |
Dec 04 13:24:46.922 INFO [stderr] 33 |   fn signal(sig: u32, cb: extern fn(u32)) -> fn(u32);
Dec 04 13:24:46.922 INFO [stderr]    |                                              ^^^^^^^
Dec 04 13:24:46.922 INFO [stderr]    |
Dec 04 13:24:46.922 INFO [stderr]    = note: #[warn(improper_ctypes)] on by default
Dec 04 13:24:46.922 INFO [stderr]    = help: consider using an `extern fn(...) -> ...` function pointer instead
Dec 04 13:24:46.922 INFO [stderr] 
Dec 04 13:24:46.960 INFO [stderr] warning: unused imports: `Read`, `Stderr`, `Write`, `self`
Dec 04 13:24:46.962 INFO [stderr]   --> src/main.rs:21:15
Dec 04 13:24:46.962 INFO [stderr]    |
Dec 04 13:24:46.962 INFO [stderr] 21 | use std::io::{self, Read, Stderr, Write};
Dec 04 13:24:46.962 INFO [stderr]    |               ^^^^  ^^^^  ^^^^^^  ^^^^^
Dec 04 13:24:46.962 INFO [stderr]    |
Dec 04 13:24:46.962 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 13:24:46.962 INFO [stderr] 
Dec 04 13:24:47.048 INFO [stderr] warning: unused variable: `words`
Dec 04 13:24:47.048 INFO [stderr]   --> src/main.rs:63:27
Dec 04 13:24:47.048 INFO [stderr]    |
Dec 04 13:24:47.048 INFO [stderr] 63 |     fn history(&mut self, words: std::str::SplitWhitespace) {
Dec 04 13:24:47.048 INFO [stderr]    |                           ^^^^^ help: consider using `_words` instead
Dec 04 13:24:47.048 INFO [stderr]    |
Dec 04 13:24:47.048 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 13:24:47.048 INFO [stderr] 
Dec 04 13:24:47.062 INFO [stderr] warning: unnecessary `unsafe` block
Dec 04 13:24:47.062 INFO [stderr]    --> src/main.rs:113:17
Dec 04 13:24:47.062 INFO [stderr]     |
Dec 04 13:24:47.062 INFO [stderr] 113 |                 unsafe {
Dec 04 13:24:47.062 INFO [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
Dec 04 13:24:47.063 INFO [stderr]     |
Dec 04 13:24:47.063 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 04 13:24:47.063 INFO [stderr] 
Dec 04 13:24:47.063 INFO [stderr] warning: method is never used: `save_history`
Dec 04 13:24:47.063 INFO [stderr]    --> src/main.rs:125:5
Dec 04 13:24:47.063 INFO [stderr]     |
Dec 04 13:24:47.063 INFO [stderr] 125 |     fn save_history(&mut self) {
Dec 04 13:24:47.063 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:24:47.063 INFO [stderr]     |
Dec 04 13:24:47.063 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 13:24:47.063 INFO [stderr] 
Dec 04 13:24:47.063 INFO [stderr] warning: `extern` block uses type `fn(u32)` which is not FFI-safe: this function pointer has Rust-specific calling convention
Dec 04 13:24:47.063 INFO [stderr]   --> src/main.rs:33:46
Dec 04 13:24:47.063 INFO [stderr]    |
Dec 04 13:24:47.063 INFO [stderr] 33 |   fn signal(sig: u32, cb: extern fn(u32)) -> fn(u32);
Dec 04 13:24:47.063 INFO [stderr]    |                                              ^^^^^^^
Dec 04 13:24:47.063 INFO [stderr]    |
Dec 04 13:24:47.063 INFO [stderr]    = note: #[warn(improper_ctypes)] on by default
Dec 04 13:24:47.063 INFO [stderr]    = help: consider using an `extern fn(...) -> ...` function pointer instead
Dec 04 13:24:47.063 INFO [stderr] 
Dec 04 13:24:47.088 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
Dec 04 13:24:47.095 INFO [stderr] su: No module specific data is present
Dec 04 13:24:47.950 INFO running `"docker" "inspect" "fd3cccf42048a6018b9ebb6e77e95109c116e27c0f930e763b041e27d6ca9e60"`
Dec 04 13:24:48.167 INFO running `"docker" "rm" "-f" "fd3cccf42048a6018b9ebb6e77e95109c116e27c0f930e763b041e27d6ca9e60"`
Dec 04 13:24:48.403 INFO [stdout] fd3cccf42048a6018b9ebb6e77e95109c116e27c0f930e763b041e27d6ca9e60