[INFO] updating cached repository cpdean/gzip_simulator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cpdean/gzip_simulator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cpdean/gzip_simulator" "work/ex/beta-1.37-6/sources/1.36.0/gh/cpdean/gzip_simulator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/cpdean/gzip_simulator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cpdean/gzip_simulator" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cpdean/gzip_simulator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cpdean/gzip_simulator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64e3baccf0f914fee4175e0494e83af83e218a6c
[INFO] sha for GitHub repo cpdean/gzip_simulator: 64e3baccf0f914fee4175e0494e83af83e218a6c
[INFO] validating manifest of cpdean/gzip_simulator 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 cpdean/gzip_simulator 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 cpdean/gzip_simulator
[INFO] finished frobbing cpdean/gzip_simulator
[INFO] frobbed toml for cpdean/gzip_simulator written to work/ex/beta-1.37-6/sources/1.36.0/gh/cpdean/gzip_simulator/Cargo.toml
[INFO] started frobbing cpdean/gzip_simulator
[INFO] finished frobbing cpdean/gzip_simulator
[INFO] frobbed toml for cpdean/gzip_simulator written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cpdean/gzip_simulator/Cargo.toml
[INFO] crate cpdean/gzip_simulator 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing cpdean/gzip_simulator 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cpdean/gzip_simulator:/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] ef7406941f74755835f7bea075ba50890187db540fe0feabdcac9b1a05d14d7e
[INFO] running `"docker" "start" "-a" "ef7406941f74755835f7bea075ba50890187db540fe0feabdcac9b1a05d14d7e"`
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling gunzip_simulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:139:17
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 in_match = false;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_byte_to_find` is never read
[INFO] [stderr]   --> src/main.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut current_byte_to_find = bytes[read_position];
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]    --> src/main.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     pub fn get(&self, index: usize) -> Option<Vec<u8>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "ef7406941f74755835f7bea075ba50890187db540fe0feabdcac9b1a05d14d7e"`
[INFO] running `"docker" "rm" "-f" "ef7406941f74755835f7bea075ba50890187db540fe0feabdcac9b1a05d14d7e"`
[INFO] [stdout] ef7406941f74755835f7bea075ba50890187db540fe0feabdcac9b1a05d14d7e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cpdean/gzip_simulator:/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] 3fd380a13e12e661e7bb765b15f429eaee53795c128b131c045d2c11fd2f7b75
[INFO] running `"docker" "start" "-a" "3fd380a13e12e661e7bb765b15f429eaee53795c128b131c045d2c11fd2f7b75"`
[INFO] [stderr]    Compiling gunzip_simulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `GzipComponent::*`
[INFO] [stderr]    --> src/main.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |         use GzipComponent::*;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:139:17
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 in_match = false;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_byte_to_find` is never read
[INFO] [stderr]   --> src/main.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let mut current_byte_to_find = bytes[read_position];
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]    --> src/main.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     pub fn get(&self, index: usize) -> Option<Vec<u8>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_printing`
[INFO] [stderr]    --> src/main.rs:225:5
[INFO] [stderr]     |
[INFO] [stderr] 225 |     fn test_printing() -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_byte_getter`
[INFO] [stderr]    --> src/main.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 |     fn test_byte_getter() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "3fd380a13e12e661e7bb765b15f429eaee53795c128b131c045d2c11fd2f7b75"`
[INFO] running `"docker" "rm" "-f" "3fd380a13e12e661e7bb765b15f429eaee53795c128b131c045d2c11fd2f7b75"`
[INFO] [stdout] 3fd380a13e12e661e7bb765b15f429eaee53795c128b131c045d2c11fd2f7b75
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cpdean/gzip_simulator:/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] 94576458abb7489aa22cae5d45e23fe6da3db085a4130a2694f820d6cc23df10
[INFO] running `"docker" "start" "-a" "94576458abb7489aa22cae5d45e23fe6da3db085a4130a2694f820d6cc23df10"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gunzip_simulator-71af7b8613e4ac94
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_bigger_compression_with_repeat_and_a_break ... ok
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stdout] test tests::test_bigger_compression_with_repeat ... ok
[INFO] [stdout] test tests::test_bigger_compression ... ok
[INFO] [stdout] test tests::test_simple_repettition ... ok
[INFO] [stdout] test tests::test_no_compression ... ok
[INFO] [stdout] test tests::test_some_compression ... ok
[INFO] [stdout] test tests::test_simple_repettition2 ... ok
[INFO] [stdout] test tests::test_simple_writing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "94576458abb7489aa22cae5d45e23fe6da3db085a4130a2694f820d6cc23df10"`
[INFO] running `"docker" "rm" "-f" "94576458abb7489aa22cae5d45e23fe6da3db085a4130a2694f820d6cc23df10"`
[INFO] [stdout] 94576458abb7489aa22cae5d45e23fe6da3db085a4130a2694f820d6cc23df10