Dec 13 10:05:28.476 INFO testing mpdrescher/huffman-compression against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 10:05:28.476 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 10:05:29.179 INFO [stdout] f8cadd14ce6116d17a1c590876d96372ab1b74da413b6ac863361b7e34d14607
Dec 13 10:05:29.181 INFO running `"docker" "start" "-a" "f8cadd14ce6116d17a1c590876d96372ab1b74da413b6ac863361b7e34d14607"`
Dec 13 10:05:30.671 INFO [stderr] usermod: no changes
Dec 13 10:05:30.719 INFO [stderr]    Compiling huffman v0.1.0 (/source)
Dec 13 10:05:31.143 INFO [stderr] warning: value assigned to `cur_byte` is never read
Dec 13 10:05:31.143 INFO [stderr]    --> src/huffmantree.rs:188:11
Dec 13 10:05:31.143 INFO [stderr]     |
Dec 13 10:05:31.143 INFO [stderr] 188 |         let mut cur_byte: u8 = 4;
Dec 13 10:05:31.143 INFO [stderr]     |                 ^^^^^^^^
Dec 13 10:05:31.143 INFO [stderr]     |
Dec 13 10:05:31.143 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 13 10:05:31.143 INFO [stderr] 
Dec 13 10:05:32.882 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
Dec 13 10:05:32.891 INFO [stderr] su: No module specific data is present
Dec 13 10:05:34.071 INFO running `"docker" "inspect" "f8cadd14ce6116d17a1c590876d96372ab1b74da413b6ac863361b7e34d14607"`
Dec 13 10:05:34.337 INFO running `"docker" "rm" "-f" "f8cadd14ce6116d17a1c590876d96372ab1b74da413b6ac863361b7e34d14607"`
Dec 13 10:05:34.703 INFO [stdout] f8cadd14ce6116d17a1c590876d96372ab1b74da413b6ac863361b7e34d14607
Dec 13 10:05:34.709 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 10:05:35.272 INFO [stdout] f69f285dc5b40b67dd0ade518fb625632bd93cd123965673fc3beab6423bbefb
Dec 13 10:05:35.274 INFO running `"docker" "start" "-a" "f69f285dc5b40b67dd0ade518fb625632bd93cd123965673fc3beab6423bbefb"`
Dec 13 10:05:36.511 INFO [stderr] usermod: no changes
Dec 13 10:05:36.567 INFO [stderr]    Compiling huffman v0.1.0 (/source)
Dec 13 10:05:37.327 INFO [stderr] warning: value assigned to `cur_byte` is never read
Dec 13 10:05:37.327 INFO [stderr]    --> src/huffmantree.rs:188:11
Dec 13 10:05:37.327 INFO [stderr]     |
Dec 13 10:05:37.327 INFO [stderr] 188 |         let mut cur_byte: u8 = 4;
Dec 13 10:05:37.327 INFO [stderr]     |                 ^^^^^^^^
Dec 13 10:05:37.327 INFO [stderr]     |
Dec 13 10:05:37.327 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 13 10:05:37.327 INFO [stderr] 
Dec 13 10:05:37.916 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
Dec 13 10:05:37.918 INFO [stderr] su: No module specific data is present
Dec 13 10:05:39.125 INFO running `"docker" "inspect" "f69f285dc5b40b67dd0ade518fb625632bd93cd123965673fc3beab6423bbefb"`
Dec 13 10:05:39.447 INFO running `"docker" "rm" "-f" "f69f285dc5b40b67dd0ade518fb625632bd93cd123965673fc3beab6423bbefb"`
Dec 13 10:05:39.750 INFO [stdout] f69f285dc5b40b67dd0ade518fb625632bd93cd123965673fc3beab6423bbefb
Dec 13 10:05:39.753 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 10:05:40.320 INFO [stdout] 51a26f535ebdb3de8645016bb24991051d151747a393f6ccedaf50292d13472f
Dec 13 10:05:40.322 INFO running `"docker" "start" "-a" "51a26f535ebdb3de8645016bb24991051d151747a393f6ccedaf50292d13472f"`
Dec 13 10:05:41.680 INFO [stderr] usermod: no changes
Dec 13 10:05:41.751 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 13 10:05:41.751 INFO [stderr]      Running /target/debug/deps/huffman-dee6f3f4c78dad62
Dec 13 10:05:41.759 INFO [stderr] su: No module specific data is present
Dec 13 10:05:41.759 INFO [stdout] 
Dec 13 10:05:41.759 INFO [stdout] running 0 tests
Dec 13 10:05:41.759 INFO [stdout] 
Dec 13 10:05:41.759 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 10:05:41.759 INFO [stdout] 
Dec 13 10:05:43.271 INFO running `"docker" "inspect" "51a26f535ebdb3de8645016bb24991051d151747a393f6ccedaf50292d13472f"`
Dec 13 10:05:43.571 INFO running `"docker" "rm" "-f" "51a26f535ebdb3de8645016bb24991051d151747a393f6ccedaf50292d13472f"`
Dec 13 10:05:43.987 INFO [stdout] 51a26f535ebdb3de8645016bb24991051d151747a393f6ccedaf50292d13472f