Dec 04 09:36:57.305 INFO checking stan4cb/rust-tools against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 09:36:57.305 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 09:36:57.483 INFO [stdout] a7451767dfc98c8639c0fbed35387629aaba8d1af4d2f8021eee2672488d309c
Dec 04 09:36:57.489 INFO running `"docker" "start" "-a" "a7451767dfc98c8639c0fbed35387629aaba8d1af4d2f8021eee2672488d309c"`
Dec 04 09:36:58.631 INFO [stderr] usermod: no changes
Dec 04 09:36:58.691 INFO [stderr]     Checking rust-tools v0.1.0 (/source)
Dec 04 09:36:59.068 INFO [stderr] warning: unused import: `Write`
Dec 04 09:36:59.068 INFO [stderr]  --> src/main.rs:2:21
Dec 04 09:36:59.068 INFO [stderr]   |
Dec 04 09:36:59.069 INFO [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom};
Dec 04 09:36:59.069 INFO [stderr]   |                     ^^^^^
Dec 04 09:36:59.069 INFO [stderr]   |
Dec 04 09:36:59.070 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 09:36:59.070 INFO [stderr] 
Dec 04 09:36:59.070 INFO [stderr] warning: unused import: `Read`
Dec 04 09:36:59.070 INFO [stderr]  --> src/tools.rs:3:15
Dec 04 09:36:59.070 INFO [stderr]   |
Dec 04 09:36:59.071 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 04 09:36:59.071 INFO [stderr]   |               ^^^^
Dec 04 09:36:59.071 INFO [stderr] 
Dec 04 09:36:59.104 INFO [stderr] warning: unused import: `Write`
Dec 04 09:36:59.105 INFO [stderr]  --> src/main.rs:2:21
Dec 04 09:36:59.105 INFO [stderr]   |
Dec 04 09:36:59.105 INFO [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom};
Dec 04 09:36:59.105 INFO [stderr]   |                     ^^^^^
Dec 04 09:36:59.105 INFO [stderr]   |
Dec 04 09:36:59.105 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 09:36:59.105 INFO [stderr] 
Dec 04 09:36:59.106 INFO [stderr] warning: unused import: `Read`
Dec 04 09:36:59.106 INFO [stderr]  --> src/tools.rs:3:15
Dec 04 09:36:59.106 INFO [stderr]   |
Dec 04 09:36:59.106 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 04 09:36:59.106 INFO [stderr]   |               ^^^^
Dec 04 09:36:59.106 INFO [stderr] 
Dec 04 09:36:59.167 INFO [stderr] warning: unused variable: `res`
Dec 04 09:36:59.167 INFO [stderr]    --> src/main.rs:135:24
Dec 04 09:36:59.167 INFO [stderr]     |
Dec 04 09:36:59.167 INFO [stderr] 135 |                     Ok(res) => {
Dec 04 09:36:59.167 INFO [stderr]     |                        ^^^ help: consider using `_res` instead
Dec 04 09:36:59.167 INFO [stderr]     |
Dec 04 09:36:59.167 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 09:36:59.167 INFO [stderr] 
Dec 04 09:36:59.204 INFO [stderr] warning: unused variable: `res`
Dec 04 09:36:59.204 INFO [stderr]    --> src/main.rs:135:24
Dec 04 09:36:59.204 INFO [stderr]     |
Dec 04 09:36:59.204 INFO [stderr] 135 |                     Ok(res) => {
Dec 04 09:36:59.204 INFO [stderr]     |                        ^^^ help: consider using `_res` instead
Dec 04 09:36:59.204 INFO [stderr]     |
Dec 04 09:36:59.204 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 09:36:59.204 INFO [stderr] 
Dec 04 09:36:59.246 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.246 INFO [stderr]    --> src/main.rs:131:17
Dec 04 09:36:59.246 INFO [stderr]     |
Dec 04 09:36:59.246 INFO [stderr] 131 |                 file.read_exact(&mut x);
Dec 04 09:36:59.247 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.247 INFO [stderr]     |
Dec 04 09:36:59.247 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 09:36:59.248 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.248 INFO [stderr] 
Dec 04 09:36:59.248 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.249 INFO [stderr]    --> src/main.rs:138:25
Dec 04 09:36:59.249 INFO [stderr]     |
Dec 04 09:36:59.249 INFO [stderr] 138 |                         file.read_exact(&mut a);
Dec 04 09:36:59.249 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.250 INFO [stderr]     |
Dec 04 09:36:59.250 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.250 INFO [stderr] 
Dec 04 09:36:59.251 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.251 INFO [stderr]    --> src/main.rs:141:25
Dec 04 09:36:59.251 INFO [stderr]     |
Dec 04 09:36:59.251 INFO [stderr] 141 |                         file.read_exact(&mut a);
Dec 04 09:36:59.252 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.252 INFO [stderr]     |
Dec 04 09:36:59.252 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.253 INFO [stderr] 
Dec 04 09:36:59.253 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.253 INFO [stderr]    --> src/main.rs:144:25
Dec 04 09:36:59.253 INFO [stderr]     |
Dec 04 09:36:59.254 INFO [stderr] 144 |                         file.read_exact(&mut a);
Dec 04 09:36:59.254 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.254 INFO [stderr]     |
Dec 04 09:36:59.255 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.255 INFO [stderr] 
Dec 04 09:36:59.270 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.270 INFO [stderr]    --> src/main.rs:131:17
Dec 04 09:36:59.270 INFO [stderr]     |
Dec 04 09:36:59.270 INFO [stderr] 131 |                 file.read_exact(&mut x);
Dec 04 09:36:59.270 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.270 INFO [stderr]     |
Dec 04 09:36:59.270 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 09:36:59.270 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.271 INFO [stderr] 
Dec 04 09:36:59.271 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.271 INFO [stderr]    --> src/main.rs:138:25
Dec 04 09:36:59.271 INFO [stderr]     |
Dec 04 09:36:59.271 INFO [stderr] 138 |                         file.read_exact(&mut a);
Dec 04 09:36:59.271 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.271 INFO [stderr]     |
Dec 04 09:36:59.271 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.271 INFO [stderr] 
Dec 04 09:36:59.271 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.271 INFO [stderr]    --> src/main.rs:141:25
Dec 04 09:36:59.271 INFO [stderr]     |
Dec 04 09:36:59.271 INFO [stderr] 141 |                         file.read_exact(&mut a);
Dec 04 09:36:59.271 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.271 INFO [stderr]     |
Dec 04 09:36:59.271 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.271 INFO [stderr] 
Dec 04 09:36:59.271 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:36:59.271 INFO [stderr]    --> src/main.rs:144:25
Dec 04 09:36:59.271 INFO [stderr]     |
Dec 04 09:36:59.271 INFO [stderr] 144 |                         file.read_exact(&mut a);
Dec 04 09:36:59.271 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:36:59.271 INFO [stderr]     |
Dec 04 09:36:59.271 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:36:59.271 INFO [stderr] 
Dec 04 09:36:59.311 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Dec 04 09:36:59.313 INFO [stderr] su: No module specific data is present
Dec 04 09:36:59.967 INFO running `"docker" "inspect" "a7451767dfc98c8639c0fbed35387629aaba8d1af4d2f8021eee2672488d309c"`
Dec 04 09:37:00.207 INFO running `"docker" "rm" "-f" "a7451767dfc98c8639c0fbed35387629aaba8d1af4d2f8021eee2672488d309c"`
Dec 04 09:37:00.482 INFO [stdout] a7451767dfc98c8639c0fbed35387629aaba8d1af4d2f8021eee2672488d309c