[INFO] updating cached repository DRiKE/resolvloser
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DRiKE/resolvloser
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DRiKE/resolvloser" "work/ex/beta-1.38-1/sources/1.37.0/gh/DRiKE/resolvloser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DRiKE/resolvloser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DRiKE/resolvloser" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DRiKE/resolvloser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DRiKE/resolvloser'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 944f9542789742aa59286fff241eb0d6e22059c3
[INFO] sha for GitHub repo DRiKE/resolvloser: 944f9542789742aa59286fff241eb0d6e22059c3
[INFO] validating manifest of DRiKE/resolvloser 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 DRiKE/resolvloser 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 DRiKE/resolvloser
[INFO] finished frobbing DRiKE/resolvloser
[INFO] frobbed toml for DRiKE/resolvloser written to work/ex/beta-1.38-1/sources/1.37.0/gh/DRiKE/resolvloser/Cargo.toml
[INFO] started frobbing DRiKE/resolvloser
[INFO] finished frobbing DRiKE/resolvloser
[INFO] frobbed toml for DRiKE/resolvloser written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DRiKE/resolvloser/Cargo.toml
[INFO] crate DRiKE/resolvloser 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 DRiKE/resolvloser 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-3/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/DRiKE/resolvloser:/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] 3226bd247b38785970e083a593fa6709a546c3ccf038c743ede18063b2412f14
[INFO] running `"docker" "start" "-a" "3226bd247b38785970e083a593fa6709a546c3ccf038c743ede18063b2412f14"`
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling resolvloser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         writeln!(bufw, "{}", line);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `"docker" "inspect" "3226bd247b38785970e083a593fa6709a546c3ccf038c743ede18063b2412f14"`
[INFO] running `"docker" "rm" "-f" "3226bd247b38785970e083a593fa6709a546c3ccf038c743ede18063b2412f14"`
[INFO] [stdout] 3226bd247b38785970e083a593fa6709a546c3ccf038c743ede18063b2412f14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/DRiKE/resolvloser:/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] 6e8c164bb83ad013ba8bd76b64f44bd0066eeb56b06f229b8214b7525e479a83
[INFO] running `"docker" "start" "-a" "6e8c164bb83ad013ba8bd76b64f44bd0066eeb56b06f229b8214b7525e479a83"`
[INFO] [stderr]    Compiling resolvloser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         writeln!(bufw, "{}", line);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "6e8c164bb83ad013ba8bd76b64f44bd0066eeb56b06f229b8214b7525e479a83"`
[INFO] running `"docker" "rm" "-f" "6e8c164bb83ad013ba8bd76b64f44bd0066eeb56b06f229b8214b7525e479a83"`
[INFO] [stdout] 6e8c164bb83ad013ba8bd76b64f44bd0066eeb56b06f229b8214b7525e479a83
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/DRiKE/resolvloser:/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] 9b6128ef8b5ac11af5535e318fd96d90ed551ff61bf8b4e017635b7d409bb71d
[INFO] running `"docker" "start" "-a" "9b6128ef8b5ac11af5535e318fd96d90ed551ff61bf8b4e017635b7d409bb71d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/resolvloser-2e3682e4d2fc867e
[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" "9b6128ef8b5ac11af5535e318fd96d90ed551ff61bf8b4e017635b7d409bb71d"`
[INFO] running `"docker" "rm" "-f" "9b6128ef8b5ac11af5535e318fd96d90ed551ff61bf8b4e017635b7d409bb71d"`
[INFO] [stdout] 9b6128ef8b5ac11af5535e318fd96d90ed551ff61bf8b4e017635b7d409bb71d