[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-1.37-6/sources/1.36.0/gh/DRiKE/resolvloser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/DRiKE/resolvloser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DRiKE/resolvloser" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRiKE/resolvloser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of DRiKE/resolvloser 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 DRiKE/resolvloser
[INFO] finished frobbing DRiKE/resolvloser
[INFO] frobbed toml for DRiKE/resolvloser written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 DRiKE/resolvloser against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 43033f30f31641a1c6722caf03c480853224fc4d3ac1fae0651206af105c5ed1
[INFO] running `"docker" "start" "-a" "43033f30f31641a1c6722caf03c480853224fc4d3ac1fae0651206af105c5ed1"`
[INFO] [stderr]    Compiling chrono v0.4.6
[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 4.92s
[INFO] running `"docker" "inspect" "43033f30f31641a1c6722caf03c480853224fc4d3ac1fae0651206af105c5ed1"`
[INFO] running `"docker" "rm" "-f" "43033f30f31641a1c6722caf03c480853224fc4d3ac1fae0651206af105c5ed1"`
[INFO] [stdout] 43033f30f31641a1c6722caf03c480853224fc4d3ac1fae0651206af105c5ed1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6939c25d966591d0995fe1cea34227628bd69b0a229b3670489ecfe778735369
[INFO] running `"docker" "start" "-a" "6939c25d966591d0995fe1cea34227628bd69b0a229b3670489ecfe778735369"`
[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 0.89s
[INFO] running `"docker" "inspect" "6939c25d966591d0995fe1cea34227628bd69b0a229b3670489ecfe778735369"`
[INFO] running `"docker" "rm" "-f" "6939c25d966591d0995fe1cea34227628bd69b0a229b3670489ecfe778735369"`
[INFO] [stdout] 6939c25d966591d0995fe1cea34227628bd69b0a229b3670489ecfe778735369
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f07d38e13ede3db2baf9d5e395e734fc6f68a2b47a52885f79272eec585c62ab
[INFO] running `"docker" "start" "-a" "f07d38e13ede3db2baf9d5e395e734fc6f68a2b47a52885f79272eec585c62ab"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/resolvloser-79d9f2d0d1847510
[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" "f07d38e13ede3db2baf9d5e395e734fc6f68a2b47a52885f79272eec585c62ab"`
[INFO] running `"docker" "rm" "-f" "f07d38e13ede3db2baf9d5e395e734fc6f68a2b47a52885f79272eec585c62ab"`
[INFO] [stdout] f07d38e13ede3db2baf9d5e395e734fc6f68a2b47a52885f79272eec585c62ab