[INFO] updating cached repository tacker-oh/rust-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tacker-oh/rust-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tacker-oh/rust-tutorial" "work/ex/beta-1.38-1/sources/1.37.0/gh/tacker-oh/rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tacker-oh/rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tacker-oh/rust-tutorial" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tacker-oh/rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tacker-oh/rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 866a18b8556f71a713104811721bc6432ee00f2f
[INFO] sha for GitHub repo tacker-oh/rust-tutorial: 866a18b8556f71a713104811721bc6432ee00f2f
[INFO] validating manifest of tacker-oh/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 tacker-oh/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 tacker-oh/rust-tutorial
[INFO] finished frobbing tacker-oh/rust-tutorial
[INFO] frobbed toml for tacker-oh/rust-tutorial written to work/ex/beta-1.38-1/sources/1.37.0/gh/tacker-oh/rust-tutorial/Cargo.toml
[INFO] started frobbing tacker-oh/rust-tutorial
[INFO] finished frobbing tacker-oh/rust-tutorial
[INFO] frobbed toml for tacker-oh/rust-tutorial written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tacker-oh/rust-tutorial/Cargo.toml
[INFO] crate tacker-oh/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 tacker-oh/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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tacker-oh/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] a46cddbe877dc6c95faf761901c44ee0b597b2b415da5057dc1fd8fba61fc9f7
[INFO] running `"docker" "start" "-a" "a46cddbe877dc6c95faf761901c44ee0b597b2b415da5057dc1fd8fba61fc9f7"`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `"docker" "inspect" "a46cddbe877dc6c95faf761901c44ee0b597b2b415da5057dc1fd8fba61fc9f7"`
[INFO] running `"docker" "rm" "-f" "a46cddbe877dc6c95faf761901c44ee0b597b2b415da5057dc1fd8fba61fc9f7"`
[INFO] [stdout] a46cddbe877dc6c95faf761901c44ee0b597b2b415da5057dc1fd8fba61fc9f7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tacker-oh/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] e570fb0dcfac469dcd6c6d5f243981101b575a076364463f192c468a4de66b8e
[INFO] running `"docker" "start" "-a" "e570fb0dcfac469dcd6c6d5f243981101b575a076364463f192c468a4de66b8e"`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "e570fb0dcfac469dcd6c6d5f243981101b575a076364463f192c468a4de66b8e"`
[INFO] running `"docker" "rm" "-f" "e570fb0dcfac469dcd6c6d5f243981101b575a076364463f192c468a4de66b8e"`
[INFO] [stdout] e570fb0dcfac469dcd6c6d5f243981101b575a076364463f192c468a4de66b8e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tacker-oh/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] 942acf5dc7087ebc38039486fd1267635645e2696a614c244ee1f462dc18277e
[INFO] running `"docker" "start" "-a" "942acf5dc7087ebc38039486fd1267635645e2696a614c244ee1f462dc18277e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-66fa1cfbd887de52
[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" "942acf5dc7087ebc38039486fd1267635645e2696a614c244ee1f462dc18277e"`
[INFO] running `"docker" "rm" "-f" "942acf5dc7087ebc38039486fd1267635645e2696a614c244ee1f462dc18277e"`
[INFO] [stdout] 942acf5dc7087ebc38039486fd1267635645e2696a614c244ee1f462dc18277e