[INFO] updating cached repository learning2rust/guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/learning2rust/guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/learning2rust/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/learning2rust/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/learning2rust/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/learning2rust/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/learning2rust/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/learning2rust/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 17cc442d16cd9ab773825045ea8cda1ac397a43a
[INFO] sha for GitHub repo learning2rust/guessing_game: 17cc442d16cd9ab773825045ea8cda1ac397a43a
[INFO] validating manifest of learning2rust/guessing_game 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 learning2rust/guessing_game 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 learning2rust/guessing_game
[INFO] finished frobbing learning2rust/guessing_game
[INFO] frobbed toml for learning2rust/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/learning2rust/guessing_game/Cargo.toml
[INFO] started frobbing learning2rust/guessing_game
[INFO] finished frobbing learning2rust/guessing_game
[INFO] frobbed toml for learning2rust/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/learning2rust/guessing_game/Cargo.toml
[INFO] crate learning2rust/guessing_game 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 learning2rust/guessing_game 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/learning2rust/guessing_game:/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] 032ec2a76419997b7926de16169bdc2ccdab99621de1b4e04c78169acf3991bb
[INFO] running `"docker" "start" "-a" "032ec2a76419997b7926de16169bdc2ccdab99621de1b4e04c78169acf3991bb"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "032ec2a76419997b7926de16169bdc2ccdab99621de1b4e04c78169acf3991bb"`
[INFO] running `"docker" "rm" "-f" "032ec2a76419997b7926de16169bdc2ccdab99621de1b4e04c78169acf3991bb"`
[INFO] [stdout] 032ec2a76419997b7926de16169bdc2ccdab99621de1b4e04c78169acf3991bb
[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/learning2rust/guessing_game:/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] 87ef0dcb94b55ff69aeac2474990a1120cc24b44286a20ba99bec6812ccd613a
[INFO] running `"docker" "start" "-a" "87ef0dcb94b55ff69aeac2474990a1120cc24b44286a20ba99bec6812ccd613a"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "87ef0dcb94b55ff69aeac2474990a1120cc24b44286a20ba99bec6812ccd613a"`
[INFO] running `"docker" "rm" "-f" "87ef0dcb94b55ff69aeac2474990a1120cc24b44286a20ba99bec6812ccd613a"`
[INFO] [stdout] 87ef0dcb94b55ff69aeac2474990a1120cc24b44286a20ba99bec6812ccd613a
[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/learning2rust/guessing_game:/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] cd96365f85023b8b99ff8b27a7e2bc1510b95c4ee5882aedb311263b6b5252af
[INFO] running `"docker" "start" "-a" "cd96365f85023b8b99ff8b27a7e2bc1510b95c4ee5882aedb311263b6b5252af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-2a273a6c9dc6eecc
[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" "cd96365f85023b8b99ff8b27a7e2bc1510b95c4ee5882aedb311263b6b5252af"`
[INFO] running `"docker" "rm" "-f" "cd96365f85023b8b99ff8b27a7e2bc1510b95c4ee5882aedb311263b6b5252af"`
[INFO] [stdout] cd96365f85023b8b99ff8b27a7e2bc1510b95c4ee5882aedb311263b6b5252af