[INFO] updating cached repository CJStadler/rust_hzip
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CJStadler/rust_hzip
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CJStadler/rust_hzip" "work/ex/beta-1.37-6/sources/1.36.0/gh/CJStadler/rust_hzip"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/CJStadler/rust_hzip'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CJStadler/rust_hzip" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CJStadler/rust_hzip"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CJStadler/rust_hzip'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c13657ee8dfd38a46cc04ab47d7b4a58e5b23b11
[INFO] sha for GitHub repo CJStadler/rust_hzip: c13657ee8dfd38a46cc04ab47d7b4a58e5b23b11
[INFO] validating manifest of CJStadler/rust_hzip 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 CJStadler/rust_hzip 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 CJStadler/rust_hzip
[INFO] finished frobbing CJStadler/rust_hzip
[INFO] frobbed toml for CJStadler/rust_hzip written to work/ex/beta-1.37-6/sources/1.36.0/gh/CJStadler/rust_hzip/Cargo.toml
[INFO] started frobbing CJStadler/rust_hzip
[INFO] finished frobbing CJStadler/rust_hzip
[INFO] frobbed toml for CJStadler/rust_hzip written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CJStadler/rust_hzip/Cargo.toml
[INFO] crate CJStadler/rust_hzip 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 CJStadler/rust_hzip against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/CJStadler/rust_hzip:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 890ac9acabc748169f13b82b49e698da8e55ed82175bf804f32d598a4eb9911f
[INFO] running `"docker" "start" "-a" "890ac9acabc748169f13b82b49e698da8e55ed82175bf804f32d598a4eb9911f"`
[INFO] [stderr]    Compiling getopts v0.2.14
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33
[INFO] [stderr]      |
[INFO] [stderr] 955  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 959  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |         ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1008 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1009 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]    Compiling rust_hzip v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `bit_vec::BitVec`
[INFO] [stderr]  --> src/decoder.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use bit_vec::BitVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `code_map::CodeMap`
[INFO] [stderr]  --> src/decoder.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use code_map::CodeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `code_tree::CodeTree`
[INFO] [stderr]  --> src/decoder.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use code_tree::CodeTree;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bits_in_last_byte`
[INFO] [stderr]  --> src/decoder.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let bits_in_last_byte = encoded_bytes.get(0).unwrap();
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_bits_in_last_byte`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code_tree_length`
[INFO] [stderr]  --> src/decoder.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut code_tree_length = LittleEndian::read_u16(encoded_bytes.get(0..2).unwrap());
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_code_tree_length`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/decoder.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut code_tree_length = LittleEndian::read_u16(encoded_bytes.get(0..2).unwrap());
[INFO] [stderr]   |         ----^^^^^^^^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_bits_to_file`
[INFO] [stderr]   --> src/write_file.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn write_bits_to_file(filename: &str, contents: &BitVec) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `"docker" "inspect" "890ac9acabc748169f13b82b49e698da8e55ed82175bf804f32d598a4eb9911f"`
[INFO] running `"docker" "rm" "-f" "890ac9acabc748169f13b82b49e698da8e55ed82175bf804f32d598a4eb9911f"`
[INFO] [stdout] 890ac9acabc748169f13b82b49e698da8e55ed82175bf804f32d598a4eb9911f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/CJStadler/rust_hzip:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b72436550fcf83af122ceaf565c48ff63fc205ee2640719bdd4ea6c14380ff21
[INFO] running `"docker" "start" "-a" "b72436550fcf83af122ceaf565c48ff63fc205ee2640719bdd4ea6c14380ff21"`
[INFO] [stderr]    Compiling rust_hzip v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `bit_vec::BitVec`
[INFO] [stderr]  --> src/decoder.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use bit_vec::BitVec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `code_map::CodeMap`
[INFO] [stderr]  --> src/decoder.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use code_map::CodeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `code_tree::CodeTree`
[INFO] [stderr]  --> src/decoder.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use code_tree::CodeTree;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bits_in_last_byte`
[INFO] [stderr]  --> src/decoder.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let bits_in_last_byte = encoded_bytes.get(0).unwrap();
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_bits_in_last_byte`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code_tree_length`
[INFO] [stderr]  --> src/decoder.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut code_tree_length = LittleEndian::read_u16(encoded_bytes.get(0..2).unwrap());
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_code_tree_length`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/decoder.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut code_tree_length = LittleEndian::read_u16(encoded_bytes.get(0..2).unwrap());
[INFO] [stderr]   |         ----^^^^^^^^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_bits_to_file`
[INFO] [stderr]   --> src/write_file.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn write_bits_to_file(filename: &str, contents: &BitVec) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "b72436550fcf83af122ceaf565c48ff63fc205ee2640719bdd4ea6c14380ff21"`
[INFO] running `"docker" "rm" "-f" "b72436550fcf83af122ceaf565c48ff63fc205ee2640719bdd4ea6c14380ff21"`
[INFO] [stdout] b72436550fcf83af122ceaf565c48ff63fc205ee2640719bdd4ea6c14380ff21
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/CJStadler/rust_hzip:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 7ff97c73c262e13ebe5c94db53525d120b22fd17b74b709ffe59e94d4b705a93
[INFO] running `"docker" "start" "-a" "7ff97c73c262e13ebe5c94db53525d120b22fd17b74b709ffe59e94d4b705a93"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_hzip-e37babc826e09aef
[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" "7ff97c73c262e13ebe5c94db53525d120b22fd17b74b709ffe59e94d4b705a93"`
[INFO] running `"docker" "rm" "-f" "7ff97c73c262e13ebe5c94db53525d120b22fd17b74b709ffe59e94d4b705a93"`
[INFO] [stdout] 7ff97c73c262e13ebe5c94db53525d120b22fd17b74b709ffe59e94d4b705a93