[INFO] updating cached repository andy-young/rust_crash_course
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andy-young/rust_crash_course
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andy-young/rust_crash_course" "work/ex/beta-1.38-1/sources/1.37.0/gh/andy-young/rust_crash_course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/andy-young/rust_crash_course'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andy-young/rust_crash_course" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/rust_crash_course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/rust_crash_course'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd8c5c8a9550da74c04df157bbca2b3d8357fc07
[INFO] sha for GitHub repo andy-young/rust_crash_course: bd8c5c8a9550da74c04df157bbca2b3d8357fc07
[INFO] validating manifest of andy-young/rust_crash_course 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 andy-young/rust_crash_course 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 andy-young/rust_crash_course
[INFO] finished frobbing andy-young/rust_crash_course
[INFO] frobbed toml for andy-young/rust_crash_course written to work/ex/beta-1.38-1/sources/1.37.0/gh/andy-young/rust_crash_course/Cargo.toml
[INFO] started frobbing andy-young/rust_crash_course
[INFO] finished frobbing andy-young/rust_crash_course
[INFO] frobbed toml for andy-young/rust_crash_course written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andy-young/rust_crash_course/Cargo.toml
[INFO] crate andy-young/rust_crash_course 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing andy-young/rust_crash_course 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-1/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/andy-young/rust_crash_course:/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] c7d73b99054cf7dc562929e6af460fb6a42cf740c6f4eb882ba432dc2ce80199
[INFO] running `"docker" "start" "-a" "c7d73b99054cf7dc562929e6af460fb6a42cf740c6f4eb882ba432dc2ce80199"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "c7d73b99054cf7dc562929e6af460fb6a42cf740c6f4eb882ba432dc2ce80199"`
[INFO] running `"docker" "rm" "-f" "c7d73b99054cf7dc562929e6af460fb6a42cf740c6f4eb882ba432dc2ce80199"`
[INFO] [stdout] c7d73b99054cf7dc562929e6af460fb6a42cf740c6f4eb882ba432dc2ce80199
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/andy-young/rust_crash_course:/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] ca8c3012e77dbc16fb99558b3de506ed73c8e1dd96ef19fd9ee3b64988450448
[INFO] running `"docker" "start" "-a" "ca8c3012e77dbc16fb99558b3de506ed73c8e1dd96ef19fd9ee3b64988450448"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "ca8c3012e77dbc16fb99558b3de506ed73c8e1dd96ef19fd9ee3b64988450448"`
[INFO] running `"docker" "rm" "-f" "ca8c3012e77dbc16fb99558b3de506ed73c8e1dd96ef19fd9ee3b64988450448"`
[INFO] [stdout] ca8c3012e77dbc16fb99558b3de506ed73c8e1dd96ef19fd9ee3b64988450448
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/andy-young/rust_crash_course:/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] 71b4abd520bd1365ceb698ef19d75bf8dbccc560ef1fb8f019f62a0cad9008ff
[INFO] running `"docker" "start" "-a" "71b4abd520bd1365ceb698ef19d75bf8dbccc560ef1fb8f019f62a0cad9008ff"`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_crash_course-40e86906fc66320a
[INFO] running `"docker" "inspect" "71b4abd520bd1365ceb698ef19d75bf8dbccc560ef1fb8f019f62a0cad9008ff"`
[INFO] running `"docker" "rm" "-f" "71b4abd520bd1365ceb698ef19d75bf8dbccc560ef1fb8f019f62a0cad9008ff"`
[INFO] [stdout] 71b4abd520bd1365ceb698ef19d75bf8dbccc560ef1fb8f019f62a0cad9008ff