[INFO] updating cached repository nathantypanski/rash
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nathantypanski/rash
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nathantypanski/rash" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/nathantypanski/rash"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/nathantypanski/rash'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nathantypanski/rash" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/nathantypanski/rash"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/nathantypanski/rash'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c401f3176f7d3e70115b8acacd988e159f34169c
[INFO] sha for GitHub repo nathantypanski/rash: c401f3176f7d3e70115b8acacd988e159f34169c
[INFO] validating manifest of nathantypanski/rash on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nathantypanski/rash on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nathantypanski/rash
[INFO] finished frobbing nathantypanski/rash
[INFO] frobbed toml for nathantypanski/rash written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/nathantypanski/rash/Cargo.toml
[INFO] started frobbing nathantypanski/rash
[INFO] finished frobbing nathantypanski/rash
[INFO] frobbed toml for nathantypanski/rash written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/nathantypanski/rash/Cargo.toml
[INFO] crate nathantypanski/rash already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nathantypanski/rash against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-5/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/nathantypanski/rash:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6b760ede9b7e1e469d767ce453f647d4a43b14c54c82262d38c0ca2a20707a4d
[INFO] running `"docker" "start" "-a" "6b760ede9b7e1e469d767ce453f647d4a43b14c54c82262d38c0ca2a20707a4d"`
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking rash v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Read`, `Stderr`, `Write`, `self`
[INFO] [stderr]   --> src/main.rs:21:15
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::io::{self, Read, Stderr, Write};
[INFO] [stderr]    |               ^^^^  ^^^^  ^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Stderr`, `Write`, `self`
[INFO] [stderr]   --> src/main.rs:21:15
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::io::{self, Read, Stderr, Write};
[INFO] [stderr]    |               ^^^^  ^^^^  ^^^^^^  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `words`
[INFO] [stderr]   --> src/main.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn history(&mut self, words: std::str::SplitWhitespace) {
[INFO] [stderr]    |                           ^^^^^ help: consider prefixing with an underscore: `_words`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `words`
[INFO] [stderr]   --> src/main.rs:63:27
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn history(&mut self, words: std::str::SplitWhitespace) {
[INFO] [stderr]    |                           ^^^^^ help: consider prefixing with an underscore: `_words`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/main.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 unsafe {
[INFO] [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `save_history`
[INFO] [stderr]    --> src/main.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn save_history(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `fn(u32)` which is not FFI-safe: this function pointer has Rust-specific calling convention
[INFO] [stderr]   --> src/main.rs:33:46
[INFO] [stderr]    |
[INFO] [stderr] 33 |   fn signal(sig: u32, cb: extern fn(u32)) -> fn(u32);
[INFO] [stderr]    |                                              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(improper_ctypes)] on by default
[INFO] [stderr]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/main.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 unsafe {
[INFO] [stderr]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `save_history`
[INFO] [stderr]    --> src/main.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn save_history(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `fn(u32)` which is not FFI-safe: this function pointer has Rust-specific calling convention
[INFO] [stderr]   --> src/main.rs:33:46
[INFO] [stderr]    |
[INFO] [stderr] 33 |   fn signal(sig: u32, cb: extern fn(u32)) -> fn(u32);
[INFO] [stderr]    |                                              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(improper_ctypes)] on by default
[INFO] [stderr]    = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `"docker" "inspect" "6b760ede9b7e1e469d767ce453f647d4a43b14c54c82262d38c0ca2a20707a4d"`
[INFO] running `"docker" "rm" "-f" "6b760ede9b7e1e469d767ce453f647d4a43b14c54c82262d38c0ca2a20707a4d"`
[INFO] [stdout] 6b760ede9b7e1e469d767ce453f647d4a43b14c54c82262d38c0ca2a20707a4d