[INFO] updating cached repository kgtkr/op_abstraction
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kgtkr/op_abstraction
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kgtkr/op_abstraction" "work/ex/beta-1.37-6/sources/1.36.0/gh/kgtkr/op_abstraction"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kgtkr/op_abstraction'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kgtkr/op_abstraction" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kgtkr/op_abstraction"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kgtkr/op_abstraction'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ce8b6763ea8f6a7ea3af47efb12a5cdc92ef059
[INFO] sha for GitHub repo kgtkr/op_abstraction: 9ce8b6763ea8f6a7ea3af47efb12a5cdc92ef059
[INFO] validating manifest of kgtkr/op_abstraction 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 kgtkr/op_abstraction 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 kgtkr/op_abstraction
[INFO] finished frobbing kgtkr/op_abstraction
[INFO] frobbed toml for kgtkr/op_abstraction written to work/ex/beta-1.37-6/sources/1.36.0/gh/kgtkr/op_abstraction/Cargo.toml
[INFO] started frobbing kgtkr/op_abstraction
[INFO] finished frobbing kgtkr/op_abstraction
[INFO] frobbed toml for kgtkr/op_abstraction written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kgtkr/op_abstraction/Cargo.toml
[INFO] crate kgtkr/op_abstraction 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 kgtkr/op_abstraction 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kgtkr/op_abstraction:/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] af5ffa3756e24a65e6fffe16762ca0cb5715eed98b29ac36245bed2e6edef6b3
[INFO] running `"docker" "start" "-a" "af5ffa3756e24a65e6fffe16762ca0cb5715eed98b29ac36245bed2e6edef6b3"`
[INFO] [stderr]    Compiling op_abstraction v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `op`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn op(i: i32, a: i64, b: i64) -> i64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `"docker" "inspect" "af5ffa3756e24a65e6fffe16762ca0cb5715eed98b29ac36245bed2e6edef6b3"`
[INFO] running `"docker" "rm" "-f" "af5ffa3756e24a65e6fffe16762ca0cb5715eed98b29ac36245bed2e6edef6b3"`
[INFO] [stdout] af5ffa3756e24a65e6fffe16762ca0cb5715eed98b29ac36245bed2e6edef6b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kgtkr/op_abstraction:/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] 8ac52b77f857178034a9b32bf31d43a3475ff19957abdc5ebb8a203c1f0429e8
[INFO] running `"docker" "start" "-a" "8ac52b77f857178034a9b32bf31d43a3475ff19957abdc5ebb8a203c1f0429e8"`
[INFO] [stderr]    Compiling op_abstraction v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "8ac52b77f857178034a9b32bf31d43a3475ff19957abdc5ebb8a203c1f0429e8"`
[INFO] running `"docker" "rm" "-f" "8ac52b77f857178034a9b32bf31d43a3475ff19957abdc5ebb8a203c1f0429e8"`
[INFO] [stdout] 8ac52b77f857178034a9b32bf31d43a3475ff19957abdc5ebb8a203c1f0429e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kgtkr/op_abstraction:/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] 4df3835e7567096b40144228761d41fb81d71918b739bc4af9a53f696445c756
[INFO] running `"docker" "start" "-a" "4df3835e7567096b40144228761d41fb81d71918b739bc4af9a53f696445c756"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/op_abstraction-42bdffadb810454d
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::op_1 ... ok
[INFO] [stdout] test tests::op_2 ... ok
[INFO] [stdout] test tests::op_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4df3835e7567096b40144228761d41fb81d71918b739bc4af9a53f696445c756"`
[INFO] running `"docker" "rm" "-f" "4df3835e7567096b40144228761d41fb81d71918b739bc4af9a53f696445c756"`
[INFO] [stdout] 4df3835e7567096b40144228761d41fb81d71918b739bc4af9a53f696445c756