[INFO] updating cached repository kkat0/circleci-demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kkat0/circleci-demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kkat0/circleci-demo" "work/ex/beta-1.38-1/sources/1.37.0/gh/kkat0/circleci-demo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kkat0/circleci-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kkat0/circleci-demo" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kkat0/circleci-demo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kkat0/circleci-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fb892bd59c801c541c68343ca78c6648efbc9087
[INFO] sha for GitHub repo kkat0/circleci-demo: fb892bd59c801c541c68343ca78c6648efbc9087
[INFO] validating manifest of kkat0/circleci-demo 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 kkat0/circleci-demo 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 kkat0/circleci-demo
[INFO] finished frobbing kkat0/circleci-demo
[INFO] frobbed toml for kkat0/circleci-demo written to work/ex/beta-1.38-1/sources/1.37.0/gh/kkat0/circleci-demo/Cargo.toml
[INFO] started frobbing kkat0/circleci-demo
[INFO] finished frobbing kkat0/circleci-demo
[INFO] frobbed toml for kkat0/circleci-demo written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kkat0/circleci-demo/Cargo.toml
[INFO] crate kkat0/circleci-demo 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 kkat0/circleci-demo against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kkat0/circleci-demo:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4ebc6396a6a303f79cf83900dbf10edf375d7b78b15038500998ea963899e366
[INFO] running `"docker" "start" "-a" "4ebc6396a6a303f79cf83900dbf10edf375d7b78b15038500998ea963899e366"`
[INFO] [stderr]    Compiling rust-cidemo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `add_two`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn add_two(a: i32) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "4ebc6396a6a303f79cf83900dbf10edf375d7b78b15038500998ea963899e366"`
[INFO] running `"docker" "rm" "-f" "4ebc6396a6a303f79cf83900dbf10edf375d7b78b15038500998ea963899e366"`
[INFO] [stdout] 4ebc6396a6a303f79cf83900dbf10edf375d7b78b15038500998ea963899e366
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kkat0/circleci-demo:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ae0decece53503cc621e109a17fdcf8775a32bc0b7e0a2ede415c611b5b3d629
[INFO] running `"docker" "start" "-a" "ae0decece53503cc621e109a17fdcf8775a32bc0b7e0a2ede415c611b5b3d629"`
[INFO] [stderr]    Compiling rust-cidemo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "ae0decece53503cc621e109a17fdcf8775a32bc0b7e0a2ede415c611b5b3d629"`
[INFO] running `"docker" "rm" "-f" "ae0decece53503cc621e109a17fdcf8775a32bc0b7e0a2ede415c611b5b3d629"`
[INFO] [stdout] ae0decece53503cc621e109a17fdcf8775a32bc0b7e0a2ede415c611b5b3d629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kkat0/circleci-demo:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 9b5472b69118820ddc0fef7cba4e68827bcc3fc03657e42bde46a92a2e2b93f9
[INFO] running `"docker" "start" "-a" "9b5472b69118820ddc0fef7cba4e68827bcc3fc03657e42bde46a92a2e2b93f9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_cidemo-dfae165763f13064
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9b5472b69118820ddc0fef7cba4e68827bcc3fc03657e42bde46a92a2e2b93f9"`
[INFO] running `"docker" "rm" "-f" "9b5472b69118820ddc0fef7cba4e68827bcc3fc03657e42bde46a92a2e2b93f9"`
[INFO] [stdout] 9b5472b69118820ddc0fef7cba4e68827bcc3fc03657e42bde46a92a2e2b93f9