[INFO] updating cached repository FrancescoCommisso/learningRust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/FrancescoCommisso/learningRust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/FrancescoCommisso/learningRust" "work/ex/beta-1.38-1/sources/1.37.0/gh/FrancescoCommisso/learningRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/FrancescoCommisso/learningRust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FrancescoCommisso/learningRust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/FrancescoCommisso/learningRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/FrancescoCommisso/learningRust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 82ed4e9f65a034486d639edeebb09ae9dbb06ec0
[INFO] sha for GitHub repo FrancescoCommisso/learningRust: 82ed4e9f65a034486d639edeebb09ae9dbb06ec0
[INFO] validating manifest of FrancescoCommisso/learningRust 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 FrancescoCommisso/learningRust 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 FrancescoCommisso/learningRust
[INFO] finished frobbing FrancescoCommisso/learningRust
[INFO] frobbed toml for FrancescoCommisso/learningRust written to work/ex/beta-1.38-1/sources/1.37.0/gh/FrancescoCommisso/learningRust/Cargo.toml
[INFO] started frobbing FrancescoCommisso/learningRust
[INFO] finished frobbing FrancescoCommisso/learningRust
[INFO] frobbed toml for FrancescoCommisso/learningRust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/FrancescoCommisso/learningRust/Cargo.toml
[INFO] crate FrancescoCommisso/learningRust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing FrancescoCommisso/learningRust 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-3/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/FrancescoCommisso/learningRust:/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] a6ad7d3de6eea438d4267e52011352fcd68491a5790906f9e05fb57d9b798f2e
[INFO] running `"docker" "start" "-a" "a6ad7d3de6eea438d4267e52011352fcd68491a5790906f9e05fb57d9b798f2e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "a6ad7d3de6eea438d4267e52011352fcd68491a5790906f9e05fb57d9b798f2e"`
[INFO] running `"docker" "rm" "-f" "a6ad7d3de6eea438d4267e52011352fcd68491a5790906f9e05fb57d9b798f2e"`
[INFO] [stdout] a6ad7d3de6eea438d4267e52011352fcd68491a5790906f9e05fb57d9b798f2e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/FrancescoCommisso/learningRust:/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] 56f29b41ccacd96659dd37f6b35fae399ca3060f5278f33a128d9df45ac6d233
[INFO] running `"docker" "start" "-a" "56f29b41ccacd96659dd37f6b35fae399ca3060f5278f33a128d9df45ac6d233"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "56f29b41ccacd96659dd37f6b35fae399ca3060f5278f33a128d9df45ac6d233"`
[INFO] running `"docker" "rm" "-f" "56f29b41ccacd96659dd37f6b35fae399ca3060f5278f33a128d9df45ac6d233"`
[INFO] [stdout] 56f29b41ccacd96659dd37f6b35fae399ca3060f5278f33a128d9df45ac6d233
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/FrancescoCommisso/learningRust:/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] 254234705d285972aec6b4730f3c8bbaf7a9f2eff69e2c0f9f5e0e5276ae723a
[INFO] running `"docker" "start" "-a" "254234705d285972aec6b4730f3c8bbaf7a9f2eff69e2c0f9f5e0e5276ae723a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-07b0c184d61c811d
[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" "254234705d285972aec6b4730f3c8bbaf7a9f2eff69e2c0f9f5e0e5276ae723a"`
[INFO] running `"docker" "rm" "-f" "254234705d285972aec6b4730f3c8bbaf7a9f2eff69e2c0f9f5e0e5276ae723a"`
[INFO] [stdout] 254234705d285972aec6b4730f3c8bbaf7a9f2eff69e2c0f9f5e0e5276ae723a