[INFO] updating cached repository mickdekkers/rust-crash-course
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mickdekkers/rust-crash-course
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mickdekkers/rust-crash-course" "work/ex/beta-1.38-1/sources/1.37.0/gh/mickdekkers/rust-crash-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mickdekkers/rust-crash-course'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mickdekkers/rust-crash-course" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mickdekkers/rust-crash-course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mickdekkers/rust-crash-course'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9fa9e04ae45793be7f384b19fde75f76ee8bff50
[INFO] sha for GitHub repo mickdekkers/rust-crash-course: 9fa9e04ae45793be7f384b19fde75f76ee8bff50
[INFO] validating manifest of mickdekkers/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 mickdekkers/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 mickdekkers/rust-crash-course
[INFO] finished frobbing mickdekkers/rust-crash-course
[INFO] frobbed toml for mickdekkers/rust-crash-course written to work/ex/beta-1.38-1/sources/1.37.0/gh/mickdekkers/rust-crash-course/Cargo.toml
[INFO] started frobbing mickdekkers/rust-crash-course
[INFO] finished frobbing mickdekkers/rust-crash-course
[INFO] frobbed toml for mickdekkers/rust-crash-course written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mickdekkers/rust-crash-course/Cargo.toml
[INFO] crate mickdekkers/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mickdekkers/rust-crash-course 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/mickdekkers/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5397f58530401344cb7e5fc34e09c6d3f2a82437dd77574a30d8e70d71a35748
[INFO] running `"docker" "start" "-a" "5397f58530401344cb7e5fc34e09c6d3f2a82437dd77574a30d8e70d71a35748"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "5397f58530401344cb7e5fc34e09c6d3f2a82437dd77574a30d8e70d71a35748"`
[INFO] running `"docker" "rm" "-f" "5397f58530401344cb7e5fc34e09c6d3f2a82437dd77574a30d8e70d71a35748"`
[INFO] [stdout] 5397f58530401344cb7e5fc34e09c6d3f2a82437dd77574a30d8e70d71a35748
[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/mickdekkers/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6a8db3708296b0d9092e7f00b6c3e65d984e4777653465f82b9ab60d15325f17
[INFO] running `"docker" "start" "-a" "6a8db3708296b0d9092e7f00b6c3e65d984e4777653465f82b9ab60d15325f17"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "6a8db3708296b0d9092e7f00b6c3e65d984e4777653465f82b9ab60d15325f17"`
[INFO] running `"docker" "rm" "-f" "6a8db3708296b0d9092e7f00b6c3e65d984e4777653465f82b9ab60d15325f17"`
[INFO] [stdout] 6a8db3708296b0d9092e7f00b6c3e65d984e4777653465f82b9ab60d15325f17
[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/mickdekkers/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ddba0cb1df2cf0cb5bceb3b02cb421e6c441fb60216ed80ad9d10bd89ce60ac9
[INFO] running `"docker" "start" "-a" "ddba0cb1df2cf0cb5bceb3b02cb421e6c441fb60216ed80ad9d10bd89ce60ac9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_crash_course-d253095f445e526d
[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" "ddba0cb1df2cf0cb5bceb3b02cb421e6c441fb60216ed80ad9d10bd89ce60ac9"`
[INFO] running `"docker" "rm" "-f" "ddba0cb1df2cf0cb5bceb3b02cb421e6c441fb60216ed80ad9d10bd89ce60ac9"`
[INFO] [stdout] ddba0cb1df2cf0cb5bceb3b02cb421e6c441fb60216ed80ad9d10bd89ce60ac9