Dec 13 21:27:57.286 INFO testing dgryski/rust-bf against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 21:27:57.286 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 13 21:27:57.719 INFO [stdout] 4d043d55b8aca4955bde78c6058a4c6377df15df46d87c3f094e464b5c4db081
Dec 13 21:27:57.920 INFO running `"docker" "start" "-a" "4d043d55b8aca4955bde78c6058a4c6377df15df46d87c3f094e464b5c4db081"`
Dec 13 21:27:58.750 INFO [stderr] usermod: no changes
Dec 13 21:27:58.776 INFO [stderr]    Compiling bf v0.1.0 (/source)
Dec 13 21:27:59.254 INFO [stderr] warning: unused variable: `arg1`
Dec 13 21:27:59.254 INFO [stderr]   --> src/main.rs:17:13
Dec 13 21:27:59.254 INFO [stderr]    |
Dec 13 21:27:59.254 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 13 21:27:59.254 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 13 21:27:59.254 INFO [stderr]    |
Dec 13 21:27:59.254 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 21:27:59.254 INFO [stderr] 
Dec 13 21:27:59.254 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 21:27:59.254 INFO [stderr]   --> src/main.rs:31:9
Dec 13 21:27:59.254 INFO [stderr]    |
Dec 13 21:27:59.254 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 13 21:27:59.254 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:27:59.254 INFO [stderr]    |
Dec 13 21:27:59.254 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 21:27:59.254 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 21:27:59.255 INFO [stderr] 
Dec 13 21:27:59.947 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
Dec 13 21:27:59.947 INFO [stderr] su: No module specific data is present
Dec 13 21:28:00.454 INFO running `"docker" "inspect" "4d043d55b8aca4955bde78c6058a4c6377df15df46d87c3f094e464b5c4db081"`
Dec 13 21:28:00.765 INFO running `"docker" "rm" "-f" "4d043d55b8aca4955bde78c6058a4c6377df15df46d87c3f094e464b5c4db081"`
Dec 13 21:28:00.971 INFO [stdout] 4d043d55b8aca4955bde78c6058a4c6377df15df46d87c3f094e464b5c4db081
Dec 13 21:28:00.975 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 13 21:28:01.459 INFO [stdout] f756799877614fbecbca663de6248a55d4979c5ed6f3332ef949d807673bfe22
Dec 13 21:28:01.461 INFO running `"docker" "start" "-a" "f756799877614fbecbca663de6248a55d4979c5ed6f3332ef949d807673bfe22"`
Dec 13 21:28:02.355 INFO [stderr] usermod: no changes
Dec 13 21:28:02.386 INFO [stderr]    Compiling bf v0.1.0 (/source)
Dec 13 21:28:02.875 INFO [stderr] warning: unused variable: `arg1`
Dec 13 21:28:02.875 INFO [stderr]   --> src/main.rs:17:13
Dec 13 21:28:02.875 INFO [stderr]    |
Dec 13 21:28:02.875 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 13 21:28:02.875 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 13 21:28:02.875 INFO [stderr]    |
Dec 13 21:28:02.875 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 21:28:02.875 INFO [stderr] 
Dec 13 21:28:02.889 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 21:28:02.889 INFO [stderr]   --> src/main.rs:31:9
Dec 13 21:28:02.889 INFO [stderr]    |
Dec 13 21:28:02.889 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 13 21:28:02.889 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 21:28:02.889 INFO [stderr]    |
Dec 13 21:28:02.889 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 21:28:02.889 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 21:28:02.890 INFO [stderr] 
Dec 13 21:28:03.133 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Dec 13 21:28:03.136 INFO [stderr] su: No module specific data is present
Dec 13 21:28:03.479 INFO running `"docker" "inspect" "f756799877614fbecbca663de6248a55d4979c5ed6f3332ef949d807673bfe22"`
Dec 13 21:28:03.604 INFO running `"docker" "rm" "-f" "f756799877614fbecbca663de6248a55d4979c5ed6f3332ef949d807673bfe22"`
Dec 13 21:28:03.751 INFO [stdout] f756799877614fbecbca663de6248a55d4979c5ed6f3332ef949d807673bfe22
Dec 13 21:28:03.754 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 13 21:28:04.107 INFO [stdout] 64f1425923892f58aef03cac7f689ad07add2358bd8040f62c7cf26ef7b16709
Dec 13 21:28:04.109 INFO running `"docker" "start" "-a" "64f1425923892f58aef03cac7f689ad07add2358bd8040f62c7cf26ef7b16709"`
Dec 13 21:28:04.927 INFO [stderr] usermod: no changes
Dec 13 21:28:04.975 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 13 21:28:04.982 INFO [stderr]      Running /target/debug/deps/bf-a9647d48794c4c61
Dec 13 21:28:04.995 INFO [stderr] su: No module specific data is present
Dec 13 21:28:04.995 INFO [stdout] 
Dec 13 21:28:04.995 INFO [stdout] running 0 tests
Dec 13 21:28:04.995 INFO [stdout] 
Dec 13 21:28:04.995 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 21:28:04.995 INFO [stdout] 
Dec 13 21:28:05.293 INFO running `"docker" "inspect" "64f1425923892f58aef03cac7f689ad07add2358bd8040f62c7cf26ef7b16709"`
Dec 13 21:28:05.386 INFO running `"docker" "rm" "-f" "64f1425923892f58aef03cac7f689ad07add2358bd8040f62c7cf26ef7b16709"`
Dec 13 21:28:05.514 INFO [stdout] 64f1425923892f58aef03cac7f689ad07add2358bd8040f62c7cf26ef7b16709