[INFO] updating cached repository arjunepr/a-simple-rust-exercise
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arjunepr/a-simple-rust-exercise
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arjunepr/a-simple-rust-exercise" "work/ex/beta-1.38-1/sources/1.37.0/gh/arjunepr/a-simple-rust-exercise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arjunepr/a-simple-rust-exercise'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arjunepr/a-simple-rust-exercise" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arjunepr/a-simple-rust-exercise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arjunepr/a-simple-rust-exercise'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 55cead71a0bf1c015c0e2e514ca9a68ee4ab7a2a
[INFO] sha for GitHub repo arjunepr/a-simple-rust-exercise: 55cead71a0bf1c015c0e2e514ca9a68ee4ab7a2a
[INFO] validating manifest of arjunepr/a-simple-rust-exercise 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 arjunepr/a-simple-rust-exercise 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 arjunepr/a-simple-rust-exercise
[INFO] finished frobbing arjunepr/a-simple-rust-exercise
[INFO] frobbed toml for arjunepr/a-simple-rust-exercise written to work/ex/beta-1.38-1/sources/1.37.0/gh/arjunepr/a-simple-rust-exercise/Cargo.toml
[INFO] started frobbing arjunepr/a-simple-rust-exercise
[INFO] finished frobbing arjunepr/a-simple-rust-exercise
[INFO] frobbed toml for arjunepr/a-simple-rust-exercise written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arjunepr/a-simple-rust-exercise/Cargo.toml
[INFO] crate arjunepr/a-simple-rust-exercise 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 arjunepr/a-simple-rust-exercise 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-7/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/arjunepr/a-simple-rust-exercise:/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] e9345c981f4ec9d83e30e8cfbb7503db1f051717b2cad14cd629d32cf9822856
[INFO] running `"docker" "start" "-a" "e9345c981f4ec9d83e30e8cfbb7503db1f051717b2cad14cd629d32cf9822856"`
[INFO] [stderr]    Compiling simple_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "e9345c981f4ec9d83e30e8cfbb7503db1f051717b2cad14cd629d32cf9822856"`
[INFO] running `"docker" "rm" "-f" "e9345c981f4ec9d83e30e8cfbb7503db1f051717b2cad14cd629d32cf9822856"`
[INFO] [stdout] e9345c981f4ec9d83e30e8cfbb7503db1f051717b2cad14cd629d32cf9822856
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/arjunepr/a-simple-rust-exercise:/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] 239ffabdb2483685914e0b4e6df8c03724823b829238e1da3082a03286682def
[INFO] running `"docker" "start" "-a" "239ffabdb2483685914e0b4e6df8c03724823b829238e1da3082a03286682def"`
[INFO] [stderr]    Compiling simple_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "239ffabdb2483685914e0b4e6df8c03724823b829238e1da3082a03286682def"`
[INFO] running `"docker" "rm" "-f" "239ffabdb2483685914e0b4e6df8c03724823b829238e1da3082a03286682def"`
[INFO] [stdout] 239ffabdb2483685914e0b4e6df8c03724823b829238e1da3082a03286682def
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/arjunepr/a-simple-rust-exercise:/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] 283ba68fc12311f501a330fd068d5224733226e996a451ef478813ffa50cda0d
[INFO] running `"docker" "start" "-a" "283ba68fc12311f501a330fd068d5224733226e996a451ef478813ffa50cda0d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple_project-77524ab02b909b32
[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" "283ba68fc12311f501a330fd068d5224733226e996a451ef478813ffa50cda0d"`
[INFO] running `"docker" "rm" "-f" "283ba68fc12311f501a330fd068d5224733226e996a451ef478813ffa50cda0d"`
[INFO] [stdout] 283ba68fc12311f501a330fd068d5224733226e996a451ef478813ffa50cda0d