[INFO] updating cached repository sojurner/Rust-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sojurner/Rust-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sojurner/Rust-tutorial" "work/ex/beta-1.38-1/sources/1.37.0/gh/sojurner/Rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sojurner/Rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sojurner/Rust-tutorial" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sojurner/Rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sojurner/Rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2ebeb63bb7c902e69b6866ee3fddec25132f0be
[INFO] sha for GitHub repo sojurner/Rust-tutorial: f2ebeb63bb7c902e69b6866ee3fddec25132f0be
[INFO] validating manifest of sojurner/Rust-tutorial 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 sojurner/Rust-tutorial 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 sojurner/Rust-tutorial
[INFO] finished frobbing sojurner/Rust-tutorial
[INFO] frobbed toml for sojurner/Rust-tutorial written to work/ex/beta-1.38-1/sources/1.37.0/gh/sojurner/Rust-tutorial/Cargo.toml
[INFO] started frobbing sojurner/Rust-tutorial
[INFO] finished frobbing sojurner/Rust-tutorial
[INFO] frobbed toml for sojurner/Rust-tutorial written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sojurner/Rust-tutorial/Cargo.toml
[INFO] crate sojurner/Rust-tutorial 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 sojurner/Rust-tutorial against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sojurner/Rust-tutorial:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7913792c8740a4ef30fa014d5fcc5a1e47d9a7339b09b4444c17379440755587
[INFO] running `"docker" "start" "-a" "7913792c8740a4ef30fa014d5fcc5a1e47d9a7339b09b4444c17379440755587"`
[INFO] [stderr]    Compiling number_guesser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "7913792c8740a4ef30fa014d5fcc5a1e47d9a7339b09b4444c17379440755587"`
[INFO] running `"docker" "rm" "-f" "7913792c8740a4ef30fa014d5fcc5a1e47d9a7339b09b4444c17379440755587"`
[INFO] [stdout] 7913792c8740a4ef30fa014d5fcc5a1e47d9a7339b09b4444c17379440755587
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sojurner/Rust-tutorial:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c16edb1a01e63bdbcae07f00cf77e205c4b677eec520465d049fc15bde3083ca
[INFO] running `"docker" "start" "-a" "c16edb1a01e63bdbcae07f00cf77e205c4b677eec520465d049fc15bde3083ca"`
[INFO] [stderr]    Compiling number_guesser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "c16edb1a01e63bdbcae07f00cf77e205c4b677eec520465d049fc15bde3083ca"`
[INFO] running `"docker" "rm" "-f" "c16edb1a01e63bdbcae07f00cf77e205c4b677eec520465d049fc15bde3083ca"`
[INFO] [stdout] c16edb1a01e63bdbcae07f00cf77e205c4b677eec520465d049fc15bde3083ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sojurner/Rust-tutorial:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 84ee18e19c8e2f1531501fe6f3754eeb91a93eef07877bbfe6c954d0b598d94f
[INFO] running `"docker" "start" "-a" "84ee18e19c8e2f1531501fe6f3754eeb91a93eef07877bbfe6c954d0b598d94f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/number_guesser-b08cae067b4548f7
[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" "84ee18e19c8e2f1531501fe6f3754eeb91a93eef07877bbfe6c954d0b598d94f"`
[INFO] running `"docker" "rm" "-f" "84ee18e19c8e2f1531501fe6f3754eeb91a93eef07877bbfe6c954d0b598d94f"`
[INFO] [stdout] 84ee18e19c8e2f1531501fe6f3754eeb91a93eef07877bbfe6c954d0b598d94f