Dec 19 12:01:22.233 INFO checking nathantypanski/rash against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:01:22.233 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/nathantypanski/rash:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:01:22.697 INFO [stdout] 5027b9da145c7ba4a84943ad80e41d515046d037daee41da0bd7a6d408fc18f1
Dec 19 12:01:22.699 INFO running `"docker" "start" "-a" "5027b9da145c7ba4a84943ad80e41d515046d037daee41da0bd7a6d408fc18f1"`
Dec 19 12:01:24.617 INFO [stderr]     Checking nix v0.5.1
Dec 19 12:01:27.536 INFO [stderr]     Checking rustyline v1.0.0
Dec 19 12:01:28.277 INFO [stderr]     Checking rash v0.1.0 (/opt/crater/workdir)
Dec 19 12:01:28.628 INFO [stderr] warning: unused imports: `Read`, `Stderr`, `Write`, `self`
Dec 19 12:01:28.629 INFO [stderr]   --> src/main.rs:21:15
Dec 19 12:01:28.629 INFO [stderr]    |
Dec 19 12:01:28.630 INFO [stderr] 21 | use std::io::{self, Read, Stderr, Write};
Dec 19 12:01:28.630 INFO [stderr]    |               ^^^^  ^^^^  ^^^^^^  ^^^^^
Dec 19 12:01:28.630 INFO [stderr]    |
Dec 19 12:01:28.631 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 12:01:28.631 INFO [stderr] 
Dec 19 12:01:28.648 INFO [stderr] warning: unused imports: `Read`, `Stderr`, `Write`, `self`
Dec 19 12:01:28.649 INFO [stderr]   --> src/main.rs:21:15
Dec 19 12:01:28.649 INFO [stderr]    |
Dec 19 12:01:28.649 INFO [stderr] 21 | use std::io::{self, Read, Stderr, Write};
Dec 19 12:01:28.650 INFO [stderr]    |               ^^^^  ^^^^  ^^^^^^  ^^^^^
Dec 19 12:01:28.650 INFO [stderr]    |
Dec 19 12:01:28.650 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 12:01:28.651 INFO [stderr] 
Dec 19 12:01:28.748 INFO [stderr] warning: unused variable: `words`
Dec 19 12:01:28.748 INFO [stderr]   --> src/main.rs:63:27
Dec 19 12:01:28.748 INFO [stderr]    |
Dec 19 12:01:28.748 INFO [stderr] 63 |     fn history(&mut self, words: std::str::SplitWhitespace) {
Dec 19 12:01:28.749 INFO [stderr]    |                           ^^^^^ help: consider using `_words` instead
Dec 19 12:01:28.749 INFO [stderr]    |
Dec 19 12:01:28.749 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:01:28.749 INFO [stderr] 
Dec 19 12:01:28.753 INFO [stderr] warning: unused variable: `words`
Dec 19 12:01:28.754 INFO [stderr]   --> src/main.rs:63:27
Dec 19 12:01:28.754 INFO [stderr]    |
Dec 19 12:01:28.754 INFO [stderr] 63 |     fn history(&mut self, words: std::str::SplitWhitespace) {
Dec 19 12:01:28.754 INFO [stderr]    |                           ^^^^^ help: consider using `_words` instead
Dec 19 12:01:28.754 INFO [stderr]    |
Dec 19 12:01:28.754 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:01:28.754 INFO [stderr] 
Dec 19 12:01:28.772 INFO [stderr] warning: unnecessary `unsafe` block
Dec 19 12:01:28.773 INFO [stderr]    --> src/main.rs:113:17
Dec 19 12:01:28.773 INFO [stderr]     |
Dec 19 12:01:28.773 INFO [stderr] 113 |                 unsafe {
Dec 19 12:01:28.773 INFO [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
Dec 19 12:01:28.773 INFO [stderr]     |
Dec 19 12:01:28.773 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 19 12:01:28.773 INFO [stderr] 
Dec 19 12:01:28.773 INFO [stderr] warning: method is never used: `save_history`
Dec 19 12:01:28.773 INFO [stderr]    --> src/main.rs:125:5
Dec 19 12:01:28.773 INFO [stderr]     |
Dec 19 12:01:28.773 INFO [stderr] 125 |     fn save_history(&mut self) {
Dec 19 12:01:28.773 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:01:28.773 INFO [stderr]     |
Dec 19 12:01:28.773 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 12:01:28.773 INFO [stderr] 
Dec 19 12:01:28.774 INFO [stderr] warning: `extern` block uses type `fn(u32)` which is not FFI-safe: this function pointer has Rust-specific calling convention
Dec 19 12:01:28.774 INFO [stderr]   --> src/main.rs:33:46
Dec 19 12:01:28.774 INFO [stderr]    |
Dec 19 12:01:28.774 INFO [stderr] 33 |   fn signal(sig: u32, cb: extern fn(u32)) -> fn(u32);
Dec 19 12:01:28.774 INFO [stderr]    |                                              ^^^^^^^
Dec 19 12:01:28.774 INFO [stderr]    |
Dec 19 12:01:28.774 INFO [stderr]    = note: #[warn(improper_ctypes)] on by default
Dec 19 12:01:28.774 INFO [stderr]    = help: consider using an `extern fn(...) -> ...` function pointer instead
Dec 19 12:01:28.774 INFO [stderr] 
Dec 19 12:01:28.774 INFO [stderr] warning: unnecessary `unsafe` block
Dec 19 12:01:28.774 INFO [stderr]    --> src/main.rs:113:17
Dec 19 12:01:28.774 INFO [stderr]     |
Dec 19 12:01:28.774 INFO [stderr] 113 |                 unsafe {
Dec 19 12:01:28.774 INFO [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
Dec 19 12:01:28.774 INFO [stderr]     |
Dec 19 12:01:28.774 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 19 12:01:28.774 INFO [stderr] 
Dec 19 12:01:28.775 INFO [stderr] warning: method is never used: `save_history`
Dec 19 12:01:28.775 INFO [stderr]    --> src/main.rs:125:5
Dec 19 12:01:28.775 INFO [stderr]     |
Dec 19 12:01:28.775 INFO [stderr] 125 |     fn save_history(&mut self) {
Dec 19 12:01:28.775 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:01:28.775 INFO [stderr]     |
Dec 19 12:01:28.775 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 12:01:28.775 INFO [stderr] 
Dec 19 12:01:28.775 INFO [stderr] warning: `extern` block uses type `fn(u32)` which is not FFI-safe: this function pointer has Rust-specific calling convention
Dec 19 12:01:28.775 INFO [stderr]   --> src/main.rs:33:46
Dec 19 12:01:28.775 INFO [stderr]    |
Dec 19 12:01:28.775 INFO [stderr] 33 |   fn signal(sig: u32, cb: extern fn(u32)) -> fn(u32);
Dec 19 12:01:28.775 INFO [stderr]    |                                              ^^^^^^^
Dec 19 12:01:28.775 INFO [stderr]    |
Dec 19 12:01:28.775 INFO [stderr]    = note: #[warn(improper_ctypes)] on by default
Dec 19 12:01:28.775 INFO [stderr]    = help: consider using an `extern fn(...) -> ...` function pointer instead
Dec 19 12:01:28.775 INFO [stderr] 
Dec 19 12:01:28.832 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.26s
Dec 19 12:01:30.236 INFO running `"docker" "inspect" "5027b9da145c7ba4a84943ad80e41d515046d037daee41da0bd7a6d408fc18f1"`
Dec 19 12:01:30.588 INFO running `"docker" "rm" "-f" "5027b9da145c7ba4a84943ad80e41d515046d037daee41da0bd7a6d408fc18f1"`
Dec 19 12:01:30.920 INFO [stdout] 5027b9da145c7ba4a84943ad80e41d515046d037daee41da0bd7a6d408fc18f1