[INFO] updating cached repository kcexn/rust_hello_world
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kcexn/rust_hello_world
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kcexn/rust_hello_world" "work/ex/beta-1.38-1/sources/1.37.0/gh/kcexn/rust_hello_world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kcexn/rust_hello_world'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kcexn/rust_hello_world" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kcexn/rust_hello_world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kcexn/rust_hello_world'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f94c95c9dae26a5a21013884c986881719ead130
[INFO] sha for GitHub repo kcexn/rust_hello_world: f94c95c9dae26a5a21013884c986881719ead130
[INFO] validating manifest of kcexn/rust_hello_world 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 kcexn/rust_hello_world 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 kcexn/rust_hello_world
[INFO] finished frobbing kcexn/rust_hello_world
[INFO] frobbed toml for kcexn/rust_hello_world written to work/ex/beta-1.38-1/sources/1.37.0/gh/kcexn/rust_hello_world/Cargo.toml
[INFO] started frobbing kcexn/rust_hello_world
[INFO] finished frobbing kcexn/rust_hello_world
[INFO] frobbed toml for kcexn/rust_hello_world written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kcexn/rust_hello_world/Cargo.toml
[INFO] crate kcexn/rust_hello_world 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 kcexn/rust_hello_world 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/kcexn/rust_hello_world:/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] 455107a77c149a1436b4c55604fa158a40ed2404fdc17d69ef7c75d93d8e9ce0
[INFO] running `"docker" "start" "-a" "455107a77c149a1436b4c55604fa158a40ed2404fdc17d69ef7c75d93d8e9ce0"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `"docker" "inspect" "455107a77c149a1436b4c55604fa158a40ed2404fdc17d69ef7c75d93d8e9ce0"`
[INFO] running `"docker" "rm" "-f" "455107a77c149a1436b4c55604fa158a40ed2404fdc17d69ef7c75d93d8e9ce0"`
[INFO] [stdout] 455107a77c149a1436b4c55604fa158a40ed2404fdc17d69ef7c75d93d8e9ce0
[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/kcexn/rust_hello_world:/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] 1369c736128b7f948710e831a1cb74f8484bc085a093833caf924830ba26f92e
[INFO] running `"docker" "start" "-a" "1369c736128b7f948710e831a1cb74f8484bc085a093833caf924830ba26f92e"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "1369c736128b7f948710e831a1cb74f8484bc085a093833caf924830ba26f92e"`
[INFO] running `"docker" "rm" "-f" "1369c736128b7f948710e831a1cb74f8484bc085a093833caf924830ba26f92e"`
[INFO] [stdout] 1369c736128b7f948710e831a1cb74f8484bc085a093833caf924830ba26f92e
[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/kcexn/rust_hello_world:/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] 6bc0bfd41f8c1a5905f017517270e968b5e3017b73e49d9dc2d4ab291abb834e
[INFO] running `"docker" "start" "-a" "6bc0bfd41f8c1a5905f017517270e968b5e3017b73e49d9dc2d4ab291abb834e"`
[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 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-03084a90e557edb8
[INFO] running `"docker" "inspect" "6bc0bfd41f8c1a5905f017517270e968b5e3017b73e49d9dc2d4ab291abb834e"`
[INFO] running `"docker" "rm" "-f" "6bc0bfd41f8c1a5905f017517270e968b5e3017b73e49d9dc2d4ab291abb834e"`
[INFO] [stdout] 6bc0bfd41f8c1a5905f017517270e968b5e3017b73e49d9dc2d4ab291abb834e