Dec 12 22:12:16.305 INFO testing vksmgr/read_file against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 22:12:16.305 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12 22:12:16.620 INFO [stdout] ae07445e6fd9ef7e56c464ee4629e38de04a2670f1d993330719b6da354c3db0
Dec 12 22:12:16.624 INFO running `"docker" "start" "-a" "ae07445e6fd9ef7e56c464ee4629e38de04a2670f1d993330719b6da354c3db0"`
Dec 12 22:12:17.127 INFO [stderr] usermod: no changes
Dec 12 22:12:17.160 INFO [stderr]    Compiling os v0.1.0 (/source)
Dec 12 22:12:17.318 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 22:12:17.318 INFO [stderr]  --> src/main.rs:5:5
Dec 12 22:12:17.318 INFO [stderr]   |
Dec 12 22:12:17.318 INFO [stderr] 5 |     read_all_lines("test.txt");
Dec 12 22:12:17.318 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:12:17.318 INFO [stderr]   |
Dec 12 22:12:17.318 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 12 22:12:17.318 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 22:12:17.318 INFO [stderr] 
Dec 12 22:12:17.690 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
Dec 12 22:12:17.692 INFO [stderr] su: No module specific data is present
Dec 12 22:12:18.152 INFO running `"docker" "inspect" "ae07445e6fd9ef7e56c464ee4629e38de04a2670f1d993330719b6da354c3db0"`
Dec 12 22:12:18.365 INFO running `"docker" "rm" "-f" "ae07445e6fd9ef7e56c464ee4629e38de04a2670f1d993330719b6da354c3db0"`
Dec 12 22:12:18.799 INFO [stdout] ae07445e6fd9ef7e56c464ee4629e38de04a2670f1d993330719b6da354c3db0
Dec 12 22:12:18.799 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12 22:12:19.139 INFO [stdout] cddd345463ea6659e9a083c0317f7ed6f32be158412b2fe2c299729b7aa6ecc8
Dec 12 22:12:19.145 INFO running `"docker" "start" "-a" "cddd345463ea6659e9a083c0317f7ed6f32be158412b2fe2c299729b7aa6ecc8"`
Dec 12 22:12:19.699 INFO [stderr] usermod: no changes
Dec 12 22:12:19.728 INFO [stderr]    Compiling os v0.1.0 (/source)
Dec 12 22:12:19.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 22:12:19.875 INFO [stderr]  --> src/main.rs:5:5
Dec 12 22:12:19.875 INFO [stderr]   |
Dec 12 22:12:19.875 INFO [stderr] 5 |     read_all_lines("test.txt");
Dec 12 22:12:19.875 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:12:19.875 INFO [stderr]   |
Dec 12 22:12:19.875 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 12 22:12:19.875 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 22:12:19.875 INFO [stderr] 
Dec 12 22:12:20.060 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Dec 12 22:12:20.062 INFO [stderr] su: No module specific data is present
Dec 12 22:12:20.404 INFO running `"docker" "inspect" "cddd345463ea6659e9a083c0317f7ed6f32be158412b2fe2c299729b7aa6ecc8"`
Dec 12 22:12:20.514 INFO running `"docker" "rm" "-f" "cddd345463ea6659e9a083c0317f7ed6f32be158412b2fe2c299729b7aa6ecc8"`
Dec 12 22:12:20.606 INFO [stdout] cddd345463ea6659e9a083c0317f7ed6f32be158412b2fe2c299729b7aa6ecc8
Dec 12 22:12:20.610 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 12 22:12:20.849 INFO [stdout] eb2ad8aa5ebeb46db5d97a329e14a5370b822f594788b909285225607b46b876
Dec 12 22:12:20.855 INFO running `"docker" "start" "-a" "eb2ad8aa5ebeb46db5d97a329e14a5370b822f594788b909285225607b46b876"`
Dec 12 22:12:21.352 INFO [stderr] usermod: no changes
Dec 12 22:12:21.373 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
Dec 12 22:12:21.374 INFO [stderr]      Running /target/debug/deps/os-41a1095da49992b4
Dec 12 22:12:21.375 INFO [stdout] 
Dec 12 22:12:21.375 INFO [stdout] running 0 tests
Dec 12 22:12:21.375 INFO [stdout] 
Dec 12 22:12:21.375 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 22:12:21.375 INFO [stdout] 
Dec 12 22:12:21.376 INFO [stderr] su: No module specific data is present
Dec 12 22:12:21.626 INFO running `"docker" "inspect" "eb2ad8aa5ebeb46db5d97a329e14a5370b822f594788b909285225607b46b876"`
Dec 12 22:12:21.710 INFO running `"docker" "rm" "-f" "eb2ad8aa5ebeb46db5d97a329e14a5370b822f594788b909285225607b46b876"`
Dec 12 22:12:21.863 INFO [stdout] eb2ad8aa5ebeb46db5d97a329e14a5370b822f594788b909285225607b46b876