[INFO] updating cached repository talaveraj/hello-world-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/talaveraj/hello-world-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/talaveraj/hello-world-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/talaveraj/hello-world-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/talaveraj/hello-world-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/talaveraj/hello-world-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/talaveraj/hello-world-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/talaveraj/hello-world-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f8c84df80f3b9a6827dd227026640e6fb3b1d33
[INFO] sha for GitHub repo talaveraj/hello-world-rs: 2f8c84df80f3b9a6827dd227026640e6fb3b1d33
[INFO] validating manifest of talaveraj/hello-world-rs 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 talaveraj/hello-world-rs 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 talaveraj/hello-world-rs
[INFO] finished frobbing talaveraj/hello-world-rs
[INFO] frobbed toml for talaveraj/hello-world-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/talaveraj/hello-world-rs/Cargo.toml
[INFO] started frobbing talaveraj/hello-world-rs
[INFO] finished frobbing talaveraj/hello-world-rs
[INFO] frobbed toml for talaveraj/hello-world-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/talaveraj/hello-world-rs/Cargo.toml
[INFO] crate talaveraj/hello-world-rs 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 talaveraj/hello-world-rs 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/talaveraj/hello-world-rs:/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] b7656b94d1903d9cd954fe4992648181cb485694c615236d41c7155fa52379ba
[INFO] running `"docker" "start" "-a" "b7656b94d1903d9cd954fe4992648181cb485694c615236d41c7155fa52379ba"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/src/main.rs
[INFO] [stderr]    Compiling crate_hello_world v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "b7656b94d1903d9cd954fe4992648181cb485694c615236d41c7155fa52379ba"`
[INFO] running `"docker" "rm" "-f" "b7656b94d1903d9cd954fe4992648181cb485694c615236d41c7155fa52379ba"`
[INFO] [stdout] b7656b94d1903d9cd954fe4992648181cb485694c615236d41c7155fa52379ba
[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/talaveraj/hello-world-rs:/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] 28cbd29dee9df6bacb9b201544510aa4fcb5270fd0aa82e5d9b692cbbb6d4cf2
[INFO] running `"docker" "start" "-a" "28cbd29dee9df6bacb9b201544510aa4fcb5270fd0aa82e5d9b692cbbb6d4cf2"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/src/main.rs
[INFO] [stderr]    Compiling crate_hello_world v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "28cbd29dee9df6bacb9b201544510aa4fcb5270fd0aa82e5d9b692cbbb6d4cf2"`
[INFO] running `"docker" "rm" "-f" "28cbd29dee9df6bacb9b201544510aa4fcb5270fd0aa82e5d9b692cbbb6d4cf2"`
[INFO] [stdout] 28cbd29dee9df6bacb9b201544510aa4fcb5270fd0aa82e5d9b692cbbb6d4cf2
[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/talaveraj/hello-world-rs:/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] 18e49dabedcc966f96d13953d1806b8b4c21e8baac4c64475c4c8dde7970d442
[INFO] running `"docker" "start" "-a" "18e49dabedcc966f96d13953d1806b8b4c21e8baac4c64475c4c8dde7970d442"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/src/main.rs
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/crate_hello_world-721722cea2760c35
[INFO] [stderr]      Running /opt/crater/target/debug/deps/crate_hello_world-1bc1774a260c5725
[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] [stdout] 
[INFO] [stderr]    Doc-tests crate_hello_world
[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] [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" "18e49dabedcc966f96d13953d1806b8b4c21e8baac4c64475c4c8dde7970d442"`
[INFO] running `"docker" "rm" "-f" "18e49dabedcc966f96d13953d1806b8b4c21e8baac4c64475c4c8dde7970d442"`
[INFO] [stdout] 18e49dabedcc966f96d13953d1806b8b4c21e8baac4c64475c4c8dde7970d442