[INFO] updating cached repository gabriel-letarte/rust-exercises
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gabriel-letarte/rust-exercises
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gabriel-letarte/rust-exercises" "work/ex/beta-1.37-6/sources/1.36.0/gh/gabriel-letarte/rust-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/gabriel-letarte/rust-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gabriel-letarte/rust-exercises" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gabriel-letarte/rust-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gabriel-letarte/rust-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f503559130ecbbae9b75cacd2e5880f339b2208
[INFO] sha for GitHub repo gabriel-letarte/rust-exercises: 4f503559130ecbbae9b75cacd2e5880f339b2208
[INFO] validating manifest of gabriel-letarte/rust-exercises on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gabriel-letarte/rust-exercises on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gabriel-letarte/rust-exercises
[INFO] finished frobbing gabriel-letarte/rust-exercises
[INFO] frobbed toml for gabriel-letarte/rust-exercises written to work/ex/beta-1.37-6/sources/1.36.0/gh/gabriel-letarte/rust-exercises/Cargo.toml
[INFO] started frobbing gabriel-letarte/rust-exercises
[INFO] finished frobbing gabriel-letarte/rust-exercises
[INFO] frobbed toml for gabriel-letarte/rust-exercises written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gabriel-letarte/rust-exercises/Cargo.toml
[INFO] crate gabriel-letarte/rust-exercises already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gabriel-letarte/rust-exercises against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gabriel-letarte/rust-exercises:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 375e94301c063ff802fdfcd7e91fd8bf19cf723b0c133c7936110348a9dfcaf6
[INFO] running `"docker" "start" "-a" "375e94301c063ff802fdfcd7e91fd8bf19cf723b0c133c7936110348a9dfcaf6"`
[INFO] [stderr]    Compiling rust-exercises v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "375e94301c063ff802fdfcd7e91fd8bf19cf723b0c133c7936110348a9dfcaf6"`
[INFO] running `"docker" "rm" "-f" "375e94301c063ff802fdfcd7e91fd8bf19cf723b0c133c7936110348a9dfcaf6"`
[INFO] [stdout] 375e94301c063ff802fdfcd7e91fd8bf19cf723b0c133c7936110348a9dfcaf6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gabriel-letarte/rust-exercises:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] f613250aff1110670fcb08026024c05de1c5458d2fcadbd40f1dadba18b56ea9
[INFO] running `"docker" "start" "-a" "f613250aff1110670fcb08026024c05de1c5458d2fcadbd40f1dadba18b56ea9"`
[INFO] [stderr]    Compiling rust-exercises v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "f613250aff1110670fcb08026024c05de1c5458d2fcadbd40f1dadba18b56ea9"`
[INFO] running `"docker" "rm" "-f" "f613250aff1110670fcb08026024c05de1c5458d2fcadbd40f1dadba18b56ea9"`
[INFO] [stdout] f613250aff1110670fcb08026024c05de1c5458d2fcadbd40f1dadba18b56ea9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gabriel-letarte/rust-exercises:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 0c92789277ed8f5d410cc5b2a319c16d699e169944ca797737ac523b7543aeae
[INFO] running `"docker" "start" "-a" "0c92789277ed8f5d410cc5b2a319c16d699e169944ca797737ac523b7543aeae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exercises-78ed05ba280fa138
[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" "0c92789277ed8f5d410cc5b2a319c16d699e169944ca797737ac523b7543aeae"`
[INFO] running `"docker" "rm" "-f" "0c92789277ed8f5d410cc5b2a319c16d699e169944ca797737ac523b7543aeae"`
[INFO] [stdout] 0c92789277ed8f5d410cc5b2a319c16d699e169944ca797737ac523b7543aeae