Dec 05 02:36:10.685 INFO testing vksmgr/read_file against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 02:36:10.686 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 02:36:11.174 INFO [stdout] 439d4ff39890491d0d6eb6cf4a1ef823d667a60bd516802cded88491840b1b79
Dec 05 02:36:11.176 INFO running `"docker" "start" "-a" "439d4ff39890491d0d6eb6cf4a1ef823d667a60bd516802cded88491840b1b79"`
Dec 05 02:36:12.627 INFO [stderr] usermod: no changes
Dec 05 02:36:12.676 INFO [stderr]    Compiling os v0.1.0 (/source)
Dec 05 02:36:12.882 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:36:12.882 INFO [stderr]  --> src/main.rs:5:5
Dec 05 02:36:12.882 INFO [stderr]   |
Dec 05 02:36:12.882 INFO [stderr] 5 |     read_all_lines("test.txt");
Dec 05 02:36:12.882 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:36:12.882 INFO [stderr]   |
Dec 05 02:36:12.882 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 05 02:36:12.882 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:36:12.882 INFO [stderr] 
Dec 05 02:36:13.598 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Dec 05 02:36:13.600 INFO [stderr] su: No module specific data is present
Dec 05 02:36:14.756 INFO running `"docker" "inspect" "439d4ff39890491d0d6eb6cf4a1ef823d667a60bd516802cded88491840b1b79"`
Dec 05 02:36:15.012 INFO running `"docker" "rm" "-f" "439d4ff39890491d0d6eb6cf4a1ef823d667a60bd516802cded88491840b1b79"`
Dec 05 02:36:15.264 INFO [stdout] 439d4ff39890491d0d6eb6cf4a1ef823d667a60bd516802cded88491840b1b79
Dec 05 02:36:15.271 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 02:36:15.788 INFO [stdout] c1005df311b06fe8f0d3d47a00622baff84ac3faf0717b516abbe394ac2b9469
Dec 05 02:36:15.791 INFO running `"docker" "start" "-a" "c1005df311b06fe8f0d3d47a00622baff84ac3faf0717b516abbe394ac2b9469"`
Dec 05 02:36:17.684 INFO [stderr] usermod: no changes
Dec 05 02:36:17.734 INFO [stderr]    Compiling os v0.1.0 (/source)
Dec 05 02:36:17.983 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:36:17.983 INFO [stderr]  --> src/main.rs:5:5
Dec 05 02:36:17.983 INFO [stderr]   |
Dec 05 02:36:17.983 INFO [stderr] 5 |     read_all_lines("test.txt");
Dec 05 02:36:17.983 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:36:17.983 INFO [stderr]   |
Dec 05 02:36:17.983 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 05 02:36:17.983 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:36:17.983 INFO [stderr] 
Dec 05 02:36:18.372 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 05 02:36:18.372 INFO [stderr] su: No module specific data is present
Dec 05 02:36:18.992 INFO running `"docker" "inspect" "c1005df311b06fe8f0d3d47a00622baff84ac3faf0717b516abbe394ac2b9469"`
Dec 05 02:36:19.237 INFO running `"docker" "rm" "-f" "c1005df311b06fe8f0d3d47a00622baff84ac3faf0717b516abbe394ac2b9469"`
Dec 05 02:36:19.492 INFO [stdout] c1005df311b06fe8f0d3d47a00622baff84ac3faf0717b516abbe394ac2b9469
Dec 05 02:36:19.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 02:36:19.896 INFO [stdout] df19d94ee14d8cdf1eef1392369dc9300307a15920443b8db55e701e31bd184c
Dec 05 02:36:19.904 INFO running `"docker" "start" "-a" "df19d94ee14d8cdf1eef1392369dc9300307a15920443b8db55e701e31bd184c"`
Dec 05 02:36:20.907 INFO [stderr] usermod: no changes
Dec 05 02:36:20.952 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 05 02:36:20.952 INFO [stderr]      Running /target/debug/deps/os-d089fbe774258be2
Dec 05 02:36:20.959 INFO [stdout] 
Dec 05 02:36:20.959 INFO [stdout] running 0 tests
Dec 05 02:36:20.959 INFO [stdout] 
Dec 05 02:36:20.959 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 02:36:20.959 INFO [stdout] 
Dec 05 02:36:20.959 INFO [stderr] su: No module specific data is present
Dec 05 02:36:21.486 INFO running `"docker" "inspect" "df19d94ee14d8cdf1eef1392369dc9300307a15920443b8db55e701e31bd184c"`
Dec 05 02:36:21.782 INFO running `"docker" "rm" "-f" "df19d94ee14d8cdf1eef1392369dc9300307a15920443b8db55e701e31bd184c"`
Dec 05 02:36:22.072 INFO [stdout] df19d94ee14d8cdf1eef1392369dc9300307a15920443b8db55e701e31bd184c