[INFO] updating cached repository adamdecaf/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adamdecaf/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adamdecaf/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/adamdecaf/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/adamdecaf/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adamdecaf/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adamdecaf/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adamdecaf/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e73348f8feca5e7bb683f783ed3b22aa4400986a
[INFO] sha for GitHub repo adamdecaf/learn-rust: e73348f8feca5e7bb683f783ed3b22aa4400986a
[INFO] validating manifest of adamdecaf/learn-rust 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 adamdecaf/learn-rust 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 adamdecaf/learn-rust
[INFO] finished frobbing adamdecaf/learn-rust
[INFO] frobbed toml for adamdecaf/learn-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/adamdecaf/learn-rust/Cargo.toml
[INFO] started frobbing adamdecaf/learn-rust
[INFO] finished frobbing adamdecaf/learn-rust
[INFO] frobbed toml for adamdecaf/learn-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/adamdecaf/learn-rust/Cargo.toml
[INFO] crate adamdecaf/learn-rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing adamdecaf/learn-rust 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-6/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/adamdecaf/learn-rust:/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] 6076a566b83b5b47a497a758e00a71505d82c087c3004be7e0a2a9f0a66ec9a2
[INFO] running `"docker" "start" "-a" "6076a566b83b5b47a497a758e00a71505d82c087c3004be7e0a2a9f0a66ec9a2"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/hello_world.rs` was erroneously implicitly accepted for binary `hello_world`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "6076a566b83b5b47a497a758e00a71505d82c087c3004be7e0a2a9f0a66ec9a2"`
[INFO] running `"docker" "rm" "-f" "6076a566b83b5b47a497a758e00a71505d82c087c3004be7e0a2a9f0a66ec9a2"`
[INFO] [stdout] 6076a566b83b5b47a497a758e00a71505d82c087c3004be7e0a2a9f0a66ec9a2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/adamdecaf/learn-rust:/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] efbf9c6d7c9edce89064a6e7d510f0ce917ddc60f904d5f1546c8638b897f078
[INFO] running `"docker" "start" "-a" "efbf9c6d7c9edce89064a6e7d510f0ce917ddc60f904d5f1546c8638b897f078"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/hello_world.rs` was erroneously implicitly accepted for binary `hello_world`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "efbf9c6d7c9edce89064a6e7d510f0ce917ddc60f904d5f1546c8638b897f078"`
[INFO] running `"docker" "rm" "-f" "efbf9c6d7c9edce89064a6e7d510f0ce917ddc60f904d5f1546c8638b897f078"`
[INFO] [stdout] efbf9c6d7c9edce89064a6e7d510f0ce917ddc60f904d5f1546c8638b897f078
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/adamdecaf/learn-rust:/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] f202c3bdb5843f3db8838bb6fe52fd6e14c7a984da0617ae8d901a5ec9885237
[INFO] running `"docker" "start" "-a" "f202c3bdb5843f3db8838bb6fe52fd6e14c7a984da0617ae8d901a5ec9885237"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/hello_world.rs` was erroneously implicitly accepted for binary `hello_world`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-0ed420afb3798957
[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" "f202c3bdb5843f3db8838bb6fe52fd6e14c7a984da0617ae8d901a5ec9885237"`
[INFO] running `"docker" "rm" "-f" "f202c3bdb5843f3db8838bb6fe52fd6e14c7a984da0617ae8d901a5ec9885237"`
[INFO] [stdout] f202c3bdb5843f3db8838bb6fe52fd6e14c7a984da0617ae8d901a5ec9885237