Dec 13 02:16:33.806 INFO testing stan4cb/rust-tools against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 02:16:33.806 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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 13 02:16:34.162 INFO [stdout] 2991406e8246d3c2ebe32faf65c627cc875ad4909ce0a6440a663b65910c225d
Dec 13 02:16:34.166 INFO running `"docker" "start" "-a" "2991406e8246d3c2ebe32faf65c627cc875ad4909ce0a6440a663b65910c225d"`
Dec 13 02:16:35.570 INFO [stderr] usermod: no changes
Dec 13 02:16:35.643 INFO [stderr]    Compiling rust-tools v0.1.0 (/source)
Dec 13 02:16:35.883 INFO [stderr] warning: unused import: `Write`
Dec 13 02:16:35.883 INFO [stderr]  --> src/main.rs:2:21
Dec 13 02:16:35.883 INFO [stderr]   |
Dec 13 02:16:35.883 INFO [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom};
Dec 13 02:16:35.883 INFO [stderr]   |                     ^^^^^
Dec 13 02:16:35.883 INFO [stderr]   |
Dec 13 02:16:35.883 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 02:16:35.883 INFO [stderr] 
Dec 13 02:16:35.883 INFO [stderr] warning: unused import: `Read`
Dec 13 02:16:35.883 INFO [stderr]  --> src/tools.rs:3:15
Dec 13 02:16:35.883 INFO [stderr]   |
Dec 13 02:16:35.883 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 13 02:16:35.883 INFO [stderr]   |               ^^^^
Dec 13 02:16:35.883 INFO [stderr] 
Dec 13 02:16:35.983 INFO [stderr] warning: unused variable: `res`
Dec 13 02:16:35.983 INFO [stderr]    --> src/main.rs:135:24
Dec 13 02:16:35.983 INFO [stderr]     |
Dec 13 02:16:35.983 INFO [stderr] 135 |                     Ok(res) => {
Dec 13 02:16:35.983 INFO [stderr]     |                        ^^^ help: consider using `_res` instead
Dec 13 02:16:35.983 INFO [stderr]     |
Dec 13 02:16:35.983 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 02:16:35.983 INFO [stderr] 
Dec 13 02:16:36.027 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:36.027 INFO [stderr]    --> src/main.rs:131:17
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr] 131 |                 file.read_exact(&mut x);
Dec 13 02:16:36.027 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 02:16:36.027 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:36.027 INFO [stderr] 
Dec 13 02:16:36.027 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:36.027 INFO [stderr]    --> src/main.rs:138:25
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr] 138 |                         file.read_exact(&mut a);
Dec 13 02:16:36.027 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:36.027 INFO [stderr] 
Dec 13 02:16:36.027 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:36.027 INFO [stderr]    --> src/main.rs:141:25
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr] 141 |                         file.read_exact(&mut a);
Dec 13 02:16:36.027 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:36.027 INFO [stderr] 
Dec 13 02:16:36.027 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:36.027 INFO [stderr]    --> src/main.rs:144:25
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr] 144 |                         file.read_exact(&mut a);
Dec 13 02:16:36.027 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:36.027 INFO [stderr]     |
Dec 13 02:16:36.027 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:36.027 INFO [stderr] 
Dec 13 02:16:36.895 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
Dec 13 02:16:36.897 INFO [stderr] su: No module specific data is present
Dec 13 02:16:37.743 INFO running `"docker" "inspect" "2991406e8246d3c2ebe32faf65c627cc875ad4909ce0a6440a663b65910c225d"`
Dec 13 02:16:38.057 INFO running `"docker" "rm" "-f" "2991406e8246d3c2ebe32faf65c627cc875ad4909ce0a6440a663b65910c225d"`
Dec 13 02:16:38.335 INFO [stdout] 2991406e8246d3c2ebe32faf65c627cc875ad4909ce0a6440a663b65910c225d
Dec 13 02:16:38.339 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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 13 02:16:38.787 INFO [stdout] 66be0ed5d531a33b604e01c68b72c7dbed3a7b66d96fba1419f8a7c90717f032
Dec 13 02:16:38.795 INFO running `"docker" "start" "-a" "66be0ed5d531a33b604e01c68b72c7dbed3a7b66d96fba1419f8a7c90717f032"`
Dec 13 02:16:40.755 INFO [stderr] usermod: no changes
Dec 13 02:16:40.799 INFO [stderr]    Compiling rust-tools v0.1.0 (/source)
Dec 13 02:16:41.103 INFO [stderr] warning: unused import: `Write`
Dec 13 02:16:41.103 INFO [stderr]  --> src/main.rs:2:21
Dec 13 02:16:41.103 INFO [stderr]   |
Dec 13 02:16:41.103 INFO [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom};
Dec 13 02:16:41.103 INFO [stderr]   |                     ^^^^^
Dec 13 02:16:41.103 INFO [stderr]   |
Dec 13 02:16:41.103 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 02:16:41.103 INFO [stderr] 
Dec 13 02:16:41.107 INFO [stderr] warning: unused import: `Read`
Dec 13 02:16:41.107 INFO [stderr]  --> src/tools.rs:3:15
Dec 13 02:16:41.107 INFO [stderr]   |
Dec 13 02:16:41.107 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 13 02:16:41.107 INFO [stderr]   |               ^^^^
Dec 13 02:16:41.107 INFO [stderr] 
Dec 13 02:16:41.207 INFO [stderr] warning: unused variable: `res`
Dec 13 02:16:41.207 INFO [stderr]    --> src/main.rs:135:24
Dec 13 02:16:41.207 INFO [stderr]     |
Dec 13 02:16:41.207 INFO [stderr] 135 |                     Ok(res) => {
Dec 13 02:16:41.207 INFO [stderr]     |                        ^^^ help: consider using `_res` instead
Dec 13 02:16:41.207 INFO [stderr]     |
Dec 13 02:16:41.207 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 02:16:41.207 INFO [stderr] 
Dec 13 02:16:41.246 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:41.246 INFO [stderr]    --> src/main.rs:131:17
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr] 131 |                 file.read_exact(&mut x);
Dec 13 02:16:41.246 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 02:16:41.246 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:41.246 INFO [stderr] 
Dec 13 02:16:41.246 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:41.246 INFO [stderr]    --> src/main.rs:138:25
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr] 138 |                         file.read_exact(&mut a);
Dec 13 02:16:41.246 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:41.246 INFO [stderr] 
Dec 13 02:16:41.246 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:41.246 INFO [stderr]    --> src/main.rs:141:25
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr] 141 |                         file.read_exact(&mut a);
Dec 13 02:16:41.246 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:41.246 INFO [stderr] 
Dec 13 02:16:41.246 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 02:16:41.246 INFO [stderr]    --> src/main.rs:144:25
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr] 144 |                         file.read_exact(&mut a);
Dec 13 02:16:41.246 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:16:41.246 INFO [stderr]     |
Dec 13 02:16:41.246 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 02:16:41.246 INFO [stderr] 
Dec 13 02:16:41.607 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 13 02:16:41.609 INFO [stderr] su: No module specific data is present
Dec 13 02:16:42.595 INFO running `"docker" "inspect" "66be0ed5d531a33b604e01c68b72c7dbed3a7b66d96fba1419f8a7c90717f032"`
Dec 13 02:16:42.883 INFO running `"docker" "rm" "-f" "66be0ed5d531a33b604e01c68b72c7dbed3a7b66d96fba1419f8a7c90717f032"`
Dec 13 02:16:43.151 INFO [stdout] 66be0ed5d531a33b604e01c68b72c7dbed3a7b66d96fba1419f8a7c90717f032
Dec 13 02:16:43.153 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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 13 02:16:43.607 INFO [stdout] 7b8e8f3bb73b2c309df0082e6cddf620d66d1823cc37f1ecd971bb0aafa87399
Dec 13 02:16:43.609 INFO running `"docker" "start" "-a" "7b8e8f3bb73b2c309df0082e6cddf620d66d1823cc37f1ecd971bb0aafa87399"`
Dec 13 02:16:45.173 INFO [stderr] usermod: no changes
Dec 13 02:16:45.255 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 02:16:45.255 INFO [stderr]      Running /target/debug/deps/rust_tools-789e6ad638cab7aa
Dec 13 02:16:45.255 INFO [stdout] 
Dec 13 02:16:45.255 INFO [stdout] running 0 tests
Dec 13 02:16:45.255 INFO [stdout] 
Dec 13 02:16:45.255 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 02:16:45.255 INFO [stdout] 
Dec 13 02:16:45.256 INFO [stderr] su: No module specific data is present
Dec 13 02:16:45.941 INFO running `"docker" "inspect" "7b8e8f3bb73b2c309df0082e6cddf620d66d1823cc37f1ecd971bb0aafa87399"`
Dec 13 02:16:46.236 INFO running `"docker" "rm" "-f" "7b8e8f3bb73b2c309df0082e6cddf620d66d1823cc37f1ecd971bb0aafa87399"`
Dec 13 02:16:46.519 INFO [stdout] 7b8e8f3bb73b2c309df0082e6cddf620d66d1823cc37f1ecd971bb0aafa87399