Oct 31 18:26:54.979 INFO checking vtsingaras/visafe against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 18:26:54.984 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Oct 31 18:26:55.456 INFO blam! 2b81cd64d4ad5804bbbd52738e0a0a02b8641921fc4fedfe54cb8e6bf45f6559
Oct 31 18:26:55.468 INFO running `"docker" "start" "-a" "2b81cd64d4ad5804bbbd52738e0a0a02b8641921fc4fedfe54cb8e6bf45f6559"`
Oct 31 18:26:56.891 INFO kablam! usermod: no changes
Oct 31 18:26:56.928 INFO kablam!     Checking argparse v0.2.1
Oct 31 18:26:57.760 INFO kablam!     Checking visafe v0.1.0 (/source)
Oct 31 18:26:58.215 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:26:58.216 INFO kablam!    --> src/main.rs:102:13
Oct 31 18:26:58.217 INFO kablam!     |
Oct 31 18:26:58.218 INFO kablam! 102 |         let mut checker_cmd = Command::new(options.checker.as_str()).arg(tmppath_str.clone()).stdout(Stdio::piped())
Oct 31 18:26:58.218 INFO kablam!     |             ----^^^^^^^^^^^
Oct 31 18:26:58.219 INFO kablam!     |             |
Oct 31 18:26:58.219 INFO kablam!     |             help: remove this `mut`
Oct 31 18:26:58.220 INFO kablam!     |
Oct 31 18:26:58.221 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 31 18:26:58.221 INFO kablam! 
Oct 31 18:26:58.222 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 18:26:58.223 INFO kablam!   --> src/main.rs:39:9
Oct 31 18:26:58.223 INFO kablam!    |
Oct 31 18:26:58.224 INFO kablam! 39 |         io::stdout().flush();
Oct 31 18:26:58.225 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:26:58.225 INFO kablam!    |
Oct 31 18:26:58.226 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 31 18:26:58.226 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 18:26:58.227 INFO kablam! 
Oct 31 18:26:58.228 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 18:26:58.228 INFO kablam!    --> src/main.rs:100:9
Oct 31 18:26:58.229 INFO kablam!     |
Oct 31 18:26:58.230 INFO kablam! 100 |         editor_cmd.wait();
Oct 31 18:26:58.230 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^
Oct 31 18:26:58.231 INFO kablam!     |
Oct 31 18:26:58.232 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 18:26:58.232 INFO kablam! 
Oct 31 18:26:58.233 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 18:26:58.233 INFO kablam!    --> src/main.rs:124:13
Oct 31 18:26:58.234 INFO kablam!     |
Oct 31 18:26:58.234 INFO kablam! 124 |             fs::remove_file(tmppath_str.clone());
Oct 31 18:26:58.235 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:26:58.235 INFO kablam!     |
Oct 31 18:26:58.235 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 18:26:58.236 INFO kablam! 
Oct 31 18:26:58.265 INFO kablam! warning: variable does not need to be mutable
Oct 31 18:26:58.266 INFO kablam!    --> src/main.rs:102:13
Oct 31 18:26:58.267 INFO kablam!     |
Oct 31 18:26:58.267 INFO kablam! 102 |         let mut checker_cmd = Command::new(options.checker.as_str()).arg(tmppath_str.clone()).stdout(Stdio::piped())
Oct 31 18:26:58.268 INFO kablam!     |             ----^^^^^^^^^^^
Oct 31 18:26:58.269 INFO kablam!     |             |
Oct 31 18:26:58.269 INFO kablam!     |             help: remove this `mut`
Oct 31 18:26:58.270 INFO kablam!     |
Oct 31 18:26:58.271 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 31 18:26:58.271 INFO kablam! 
Oct 31 18:26:58.272 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 18:26:58.273 INFO kablam!   --> src/main.rs:39:9
Oct 31 18:26:58.274 INFO kablam!    |
Oct 31 18:26:58.274 INFO kablam! 39 |         io::stdout().flush();
Oct 31 18:26:58.275 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:26:58.276 INFO kablam!    |
Oct 31 18:26:58.276 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 31 18:26:58.277 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 18:26:58.278 INFO kablam! 
Oct 31 18:26:58.279 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 18:26:58.279 INFO kablam!    --> src/main.rs:100:9
Oct 31 18:26:58.280 INFO kablam!     |
Oct 31 18:26:58.281 INFO kablam! 100 |         editor_cmd.wait();
Oct 31 18:26:58.281 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^
Oct 31 18:26:58.282 INFO kablam!     |
Oct 31 18:26:58.283 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 18:26:58.283 INFO kablam! 
Oct 31 18:26:58.284 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 18:26:58.285 INFO kablam!    --> src/main.rs:124:13
Oct 31 18:26:58.285 INFO kablam!     |
Oct 31 18:26:58.286 INFO kablam! 124 |             fs::remove_file(tmppath_str.clone());
Oct 31 18:26:58.286 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 18:26:58.287 INFO kablam!     |
Oct 31 18:26:58.288 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 18:26:58.288 INFO kablam! 
Oct 31 18:26:58.345 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
Oct 31 18:26:58.349 INFO kablam! su: No module specific data is present
Oct 31 18:26:59.736 INFO running `"docker" "rm" "-f" "2b81cd64d4ad5804bbbd52738e0a0a02b8641921fc4fedfe54cb8e6bf45f6559"`
Oct 31 18:26:59.988 INFO blam! 2b81cd64d4ad5804bbbd52738e0a0a02b8641921fc4fedfe54cb8e6bf45f6559