[INFO] updating cached repository sabartheman/Rust_huffman_parallel
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sabartheman/Rust_huffman_parallel
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sabartheman/Rust_huffman_parallel" "work/ex/beta-1.37-6/sources/1.36.0/gh/sabartheman/Rust_huffman_parallel"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sabartheman/Rust_huffman_parallel'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sabartheman/Rust_huffman_parallel" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sabartheman/Rust_huffman_parallel"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sabartheman/Rust_huffman_parallel'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9856ae702e29f7289fba9dfd14c861fcacf1362d
[INFO] sha for GitHub repo sabartheman/Rust_huffman_parallel: 9856ae702e29f7289fba9dfd14c861fcacf1362d
[INFO] validating manifest of sabartheman/Rust_huffman_parallel on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sabartheman/Rust_huffman_parallel on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sabartheman/Rust_huffman_parallel
[INFO] finished frobbing sabartheman/Rust_huffman_parallel
[INFO] frobbed toml for sabartheman/Rust_huffman_parallel written to work/ex/beta-1.37-6/sources/1.36.0/gh/sabartheman/Rust_huffman_parallel/Cargo.toml
[INFO] started frobbing sabartheman/Rust_huffman_parallel
[INFO] finished frobbing sabartheman/Rust_huffman_parallel
[INFO] frobbed toml for sabartheman/Rust_huffman_parallel written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sabartheman/Rust_huffman_parallel/Cargo.toml
[INFO] crate sabartheman/Rust_huffman_parallel already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sabartheman/Rust_huffman_parallel against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sabartheman/Rust_huffman_parallel:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 30180948be225153cafb97346c6dd58b4c8e9aa0616e0e8adf481754bf1700bd
[INFO] running `"docker" "start" "-a" "30180948be225153cafb97346c6dd58b4c8e9aa0616e0e8adf481754bf1700bd"`
[INFO] [stderr]    Compiling crossbeam v0.3.0
[INFO] [stderr]    Compiling huffman_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:103:32
[INFO] [stderr]     |
[INFO] [stderr] 103 |             assign_codes(l, h, (s.clone() + "0"));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |             assign_codes(r, h, (s.clone() + "1"));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:499:16
[INFO] [stderr]     |
[INFO] [stderr] 499 |     if let Err(e) = writeln!(file, "{},{},{},{},{},{},{},", tp1_finish - tp1_start, tp2_finish - tp2_start, tp3_finish - tp3_start, tp4_finish - tp4_start, t3-t1, t2-s2, t3-s3) {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `"docker" "inspect" "30180948be225153cafb97346c6dd58b4c8e9aa0616e0e8adf481754bf1700bd"`
[INFO] running `"docker" "rm" "-f" "30180948be225153cafb97346c6dd58b4c8e9aa0616e0e8adf481754bf1700bd"`
[INFO] [stdout] 30180948be225153cafb97346c6dd58b4c8e9aa0616e0e8adf481754bf1700bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sabartheman/Rust_huffman_parallel:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1e2ce834b0a94402e9fb819f3755a638389043c521c60298b767ec4812dd5d9c
[INFO] running `"docker" "start" "-a" "1e2ce834b0a94402e9fb819f3755a638389043c521c60298b767ec4812dd5d9c"`
[INFO] [stderr]    Compiling huffman_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:103:32
[INFO] [stderr]     |
[INFO] [stderr] 103 |             assign_codes(l, h, (s.clone() + "0"));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |             assign_codes(r, h, (s.clone() + "1"));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:499:16
[INFO] [stderr]     |
[INFO] [stderr] 499 |     if let Err(e) = writeln!(file, "{},{},{},{},{},{},{},", tp1_finish - tp1_start, tp2_finish - tp2_start, tp3_finish - tp3_start, tp4_finish - tp4_start, t3-t1, t2-s2, t3-s3) {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "1e2ce834b0a94402e9fb819f3755a638389043c521c60298b767ec4812dd5d9c"`
[INFO] running `"docker" "rm" "-f" "1e2ce834b0a94402e9fb819f3755a638389043c521c60298b767ec4812dd5d9c"`
[INFO] [stdout] 1e2ce834b0a94402e9fb819f3755a638389043c521c60298b767ec4812dd5d9c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sabartheman/Rust_huffman_parallel:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] a588ca62bb5aebdc55dc32a4800c1c87f964373cd26a204177d3648b1d003457
[INFO] running `"docker" "start" "-a" "a588ca62bb5aebdc55dc32a4800c1c87f964373cd26a204177d3648b1d003457"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/huffman_rust-3c18a08dbfb7147f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a588ca62bb5aebdc55dc32a4800c1c87f964373cd26a204177d3648b1d003457"`
[INFO] running `"docker" "rm" "-f" "a588ca62bb5aebdc55dc32a4800c1c87f964373cd26a204177d3648b1d003457"`
[INFO] [stdout] a588ca62bb5aebdc55dc32a4800c1c87f964373cd26a204177d3648b1d003457