Dec 05 13:55:02.245 INFO testing mpdrescher/huffman-compression against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 13:55:02.246 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:55:02.616 INFO [stdout] 7994b5becf8684f7a86b8c43d3208a3f3c4628add8ac8dbb492a862211eab20b
Dec 05 13:55:02.622 INFO running `"docker" "start" "-a" "7994b5becf8684f7a86b8c43d3208a3f3c4628add8ac8dbb492a862211eab20b"`
Dec 05 13:55:03.928 INFO [stderr] usermod: no changes
Dec 05 13:55:03.984 INFO [stderr]    Compiling huffman v0.1.0 (/source)
Dec 05 13:55:04.436 INFO [stderr] warning: value assigned to `cur_byte` is never read
Dec 05 13:55:04.436 INFO [stderr]    --> src/huffmantree.rs:188:11
Dec 05 13:55:04.436 INFO [stderr]     |
Dec 05 13:55:04.436 INFO [stderr] 188 |         let mut cur_byte: u8 = 4;
Dec 05 13:55:04.436 INFO [stderr]     |                 ^^^^^^^^
Dec 05 13:55:04.436 INFO [stderr]     |
Dec 05 13:55:04.436 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 05 13:55:04.436 INFO [stderr] 
Dec 05 13:55:05.812 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
Dec 05 13:55:05.812 INFO [stderr] su: No module specific data is present
Dec 05 13:55:06.990 INFO running `"docker" "inspect" "7994b5becf8684f7a86b8c43d3208a3f3c4628add8ac8dbb492a862211eab20b"`
Dec 05 13:55:07.254 INFO running `"docker" "rm" "-f" "7994b5becf8684f7a86b8c43d3208a3f3c4628add8ac8dbb492a862211eab20b"`
Dec 05 13:55:07.536 INFO [stdout] 7994b5becf8684f7a86b8c43d3208a3f3c4628add8ac8dbb492a862211eab20b
Dec 05 13:55:07.540 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:55:07.920 INFO [stdout] d5e1d8dae41c53639b76d4a31b43ee4369762a0da31f30e386eeb2de65c35d8b
Dec 05 13:55:07.924 INFO running `"docker" "start" "-a" "d5e1d8dae41c53639b76d4a31b43ee4369762a0da31f30e386eeb2de65c35d8b"`
Dec 05 13:55:09.356 INFO [stderr] usermod: no changes
Dec 05 13:55:09.444 INFO [stderr]    Compiling huffman v0.1.0 (/source)
Dec 05 13:55:09.968 INFO [stderr] warning: value assigned to `cur_byte` is never read
Dec 05 13:55:09.968 INFO [stderr]    --> src/huffmantree.rs:188:11
Dec 05 13:55:09.968 INFO [stderr]     |
Dec 05 13:55:09.968 INFO [stderr] 188 |         let mut cur_byte: u8 = 4;
Dec 05 13:55:09.968 INFO [stderr]     |                 ^^^^^^^^
Dec 05 13:55:09.968 INFO [stderr]     |
Dec 05 13:55:09.968 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 05 13:55:09.968 INFO [stderr] 
Dec 05 13:55:10.368 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Dec 05 13:55:10.368 INFO [stderr] su: No module specific data is present
Dec 05 13:55:11.117 INFO running `"docker" "inspect" "d5e1d8dae41c53639b76d4a31b43ee4369762a0da31f30e386eeb2de65c35d8b"`
Dec 05 13:55:11.404 INFO running `"docker" "rm" "-f" "d5e1d8dae41c53639b76d4a31b43ee4369762a0da31f30e386eeb2de65c35d8b"`
Dec 05 13:55:11.712 INFO [stdout] d5e1d8dae41c53639b76d4a31b43ee4369762a0da31f30e386eeb2de65c35d8b
Dec 05 13:55:11.714 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 13:55:12.184 INFO [stdout] 45a30f2a2742c6d94a454805a8755bd9d952e88410f9861f9e1033fde0a1072f
Dec 05 13:55:12.186 INFO running `"docker" "start" "-a" "45a30f2a2742c6d94a454805a8755bd9d952e88410f9861f9e1033fde0a1072f"`
Dec 05 13:55:14.279 INFO [stderr] usermod: no changes
Dec 05 13:55:14.309 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 13:55:14.309 INFO [stderr]      Running /target/debug/deps/huffman-71c43d2e30b8338c
Dec 05 13:55:14.319 INFO [stdout] 
Dec 05 13:55:14.324 INFO [stdout] running 0 tests
Dec 05 13:55:14.324 INFO [stdout] 
Dec 05 13:55:14.324 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 13:55:14.324 INFO [stdout] 
Dec 05 13:55:14.324 INFO [stderr] su: No module specific data is present
Dec 05 13:55:15.408 INFO running `"docker" "inspect" "45a30f2a2742c6d94a454805a8755bd9d952e88410f9861f9e1033fde0a1072f"`
Dec 05 13:55:15.656 INFO running `"docker" "rm" "-f" "45a30f2a2742c6d94a454805a8755bd9d952e88410f9861f9e1033fde0a1072f"`
Dec 05 13:55:16.060 INFO [stdout] 45a30f2a2742c6d94a454805a8755bd9d952e88410f9861f9e1033fde0a1072f