[INFO] updating cached repository kolemannix/hello_redis
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kolemannix/hello_redis
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kolemannix/hello_redis" "work/ex/beta-1.38-1/sources/1.37.0/gh/kolemannix/hello_redis"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kolemannix/hello_redis'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kolemannix/hello_redis" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kolemannix/hello_redis"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kolemannix/hello_redis'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6dc386b594d019b4b838ebc96483c0051bac7e80
[INFO] sha for GitHub repo kolemannix/hello_redis: 6dc386b594d019b4b838ebc96483c0051bac7e80
[INFO] validating manifest of kolemannix/hello_redis on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kolemannix/hello_redis on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kolemannix/hello_redis
[INFO] finished frobbing kolemannix/hello_redis
[INFO] frobbed toml for kolemannix/hello_redis written to work/ex/beta-1.38-1/sources/1.37.0/gh/kolemannix/hello_redis/Cargo.toml
[INFO] started frobbing kolemannix/hello_redis
[INFO] finished frobbing kolemannix/hello_redis
[INFO] frobbed toml for kolemannix/hello_redis written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kolemannix/hello_redis/Cargo.toml
[INFO] crate kolemannix/hello_redis already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kolemannix/hello_redis against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kolemannix/hello_redis:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] abf42feca42922feade88457426cd6875b426f1766ca620dc1e1b9b64bd4929a
[INFO] running `"docker" "start" "-a" "abf42feca42922feade88457426cd6875b426f1766ca620dc1e1b9b64bd4929a"`
[INFO] [stderr]    Compiling hello_redis v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrowed`
[INFO] [stderr]  --> src/lib.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `await_response_integer`
[INFO] [stderr]    --> src/lib.rs:124:1
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]    --> src/lib.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     value: Vec<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_number`
[INFO] [stderr]    --> src/lib.rs:294:1
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `"docker" "inspect" "abf42feca42922feade88457426cd6875b426f1766ca620dc1e1b9b64bd4929a"`
[INFO] running `"docker" "rm" "-f" "abf42feca42922feade88457426cd6875b426f1766ca620dc1e1b9b64bd4929a"`
[INFO] [stdout] abf42feca42922feade88457426cd6875b426f1766ca620dc1e1b9b64bd4929a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kolemannix/hello_redis:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 89bcc35e31aa3f5b14634ef1d856921a7789dd284a948405c6debf3646176bf3
[INFO] running `"docker" "start" "-a" "89bcc35e31aa3f5b14634ef1d856921a7789dd284a948405c6debf3646176bf3"`
[INFO] [stderr]    Compiling hello_redis v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrowed`
[INFO] [stderr]  --> src/lib.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow::{Borrowed};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `await_response_integer`
[INFO] [stderr]    --> src/lib.rs:124:1
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn await_response_integer(stream: &mut TcpStream) -> Result<i64> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]    --> src/lib.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     value: Vec<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_number`
[INFO] [stderr]    --> src/lib.rs:294:1
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn write_number<T : Write>(writer: &mut T, num: u32) -> std::io::Result<()> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "89bcc35e31aa3f5b14634ef1d856921a7789dd284a948405c6debf3646176bf3"`
[INFO] running `"docker" "rm" "-f" "89bcc35e31aa3f5b14634ef1d856921a7789dd284a948405c6debf3646176bf3"`
[INFO] [stdout] 89bcc35e31aa3f5b14634ef1d856921a7789dd284a948405c6debf3646176bf3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kolemannix/hello_redis:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ce9e36da65daee182ab84a21de907dea1c835c11ae8f2859805b61e279170130
[INFO] running `"docker" "start" "-a" "ce9e36da65daee182ab84a21de907dea1c835c11ae8f2859805b61e279170130"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_redis-76043e5bf67d8cc9
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_redis-b84b92b171eb11b2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::set_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello_redis
[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] [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" "ce9e36da65daee182ab84a21de907dea1c835c11ae8f2859805b61e279170130"`
[INFO] running `"docker" "rm" "-f" "ce9e36da65daee182ab84a21de907dea1c835c11ae8f2859805b61e279170130"`
[INFO] [stdout] ce9e36da65daee182ab84a21de907dea1c835c11ae8f2859805b61e279170130