[INFO] updating cached repository harrydevnull/cassandra-rust-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/harrydevnull/cassandra-rust-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/harrydevnull/cassandra-rust-test" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/harrydevnull/cassandra-rust-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/harrydevnull/cassandra-rust-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/harrydevnull/cassandra-rust-test" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/harrydevnull/cassandra-rust-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/harrydevnull/cassandra-rust-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 393ec43dab8fd0c1635447a0b77abf26b7c6240d
[INFO] sha for GitHub repo harrydevnull/cassandra-rust-test: 393ec43dab8fd0c1635447a0b77abf26b7c6240d
[INFO] validating manifest of harrydevnull/cassandra-rust-test on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of harrydevnull/cassandra-rust-test on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing harrydevnull/cassandra-rust-test
[INFO] finished frobbing harrydevnull/cassandra-rust-test
[INFO] frobbed toml for harrydevnull/cassandra-rust-test written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/harrydevnull/cassandra-rust-test/Cargo.toml
[INFO] started frobbing harrydevnull/cassandra-rust-test
[INFO] finished frobbing harrydevnull/cassandra-rust-test
[INFO] frobbed toml for harrydevnull/cassandra-rust-test written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/harrydevnull/cassandra-rust-test/Cargo.toml
[INFO] crate harrydevnull/cassandra-rust-test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking harrydevnull/cassandra-rust-test against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/harrydevnull/cassandra-rust-test:/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=forbid" "-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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 069e5d0c64bbb1091d69cf501f2de14a9d190c166115002cfc6f4bb377c35103
[INFO] running `"docker" "start" "-a" "069e5d0c64bbb1091d69cf501f2de14a9d190c166115002cfc6f4bb377c35103"`
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking snap v0.1.2
[INFO] [stderr]     Checking cdrs v0.2.0
[INFO] [stderr]     Checking cassandraaccess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `response_frame`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let response_frame = client.start(compression::Compression::Snappy).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_response_frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `response_frame`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let response_frame = client.start(compression::Compression::Snappy).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_response_frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `"docker" "inspect" "069e5d0c64bbb1091d69cf501f2de14a9d190c166115002cfc6f4bb377c35103"`
[INFO] running `"docker" "rm" "-f" "069e5d0c64bbb1091d69cf501f2de14a9d190c166115002cfc6f4bb377c35103"`
[INFO] [stdout] 069e5d0c64bbb1091d69cf501f2de14a9d190c166115002cfc6f4bb377c35103