[INFO] updating cached repository merelinguist/forge
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/merelinguist/forge
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/merelinguist/forge" "work/ex/beta-1.38-1/sources/1.37.0/gh/merelinguist/forge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/merelinguist/forge'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/merelinguist/forge" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/merelinguist/forge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/merelinguist/forge'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 80b4cbcaae3bf77d87b7331a58ee6f70a923dda3
[INFO] sha for GitHub repo merelinguist/forge: 80b4cbcaae3bf77d87b7331a58ee6f70a923dda3
[INFO] validating manifest of merelinguist/forge 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 merelinguist/forge 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 merelinguist/forge
[INFO] finished frobbing merelinguist/forge
[INFO] frobbed toml for merelinguist/forge written to work/ex/beta-1.38-1/sources/1.37.0/gh/merelinguist/forge/Cargo.toml
[INFO] started frobbing merelinguist/forge
[INFO] finished frobbing merelinguist/forge
[INFO] frobbed toml for merelinguist/forge written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/merelinguist/forge/Cargo.toml
[INFO] crate merelinguist/forge 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 merelinguist/forge 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/merelinguist/forge:/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] db2142932113e625b7f4ac8ca876fcddb303836b67a96e2eae758be90e0f3a81
[INFO] running `"docker" "start" "-a" "db2142932113e625b7f4ac8ca876fcddb303836b67a96e2eae758be90e0f3a81"`
[INFO] [stderr]    Compiling pulldown-cmark v0.0.11
[INFO] [stderr]    Compiling forge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     create_dir_all("public");
[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] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `"docker" "inspect" "db2142932113e625b7f4ac8ca876fcddb303836b67a96e2eae758be90e0f3a81"`
[INFO] running `"docker" "rm" "-f" "db2142932113e625b7f4ac8ca876fcddb303836b67a96e2eae758be90e0f3a81"`
[INFO] [stdout] db2142932113e625b7f4ac8ca876fcddb303836b67a96e2eae758be90e0f3a81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/merelinguist/forge:/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] 0893e338766a085dd66b2b0b8016ff2608390261d64a5958bcfa1a8b0fc8b197
[INFO] running `"docker" "start" "-a" "0893e338766a085dd66b2b0b8016ff2608390261d64a5958bcfa1a8b0fc8b197"`
[INFO] [stderr]    Compiling forge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     create_dir_all("public");
[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] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "0893e338766a085dd66b2b0b8016ff2608390261d64a5958bcfa1a8b0fc8b197"`
[INFO] running `"docker" "rm" "-f" "0893e338766a085dd66b2b0b8016ff2608390261d64a5958bcfa1a8b0fc8b197"`
[INFO] [stdout] 0893e338766a085dd66b2b0b8016ff2608390261d64a5958bcfa1a8b0fc8b197
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/merelinguist/forge:/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] eb700b57d2694fc32285a14989aa29806a6d3fc6ad656ae5166d9e2de88b4068
[INFO] running `"docker" "start" "-a" "eb700b57d2694fc32285a14989aa29806a6d3fc6ad656ae5166d9e2de88b4068"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/forge-ad9578b6a060c793
[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" "eb700b57d2694fc32285a14989aa29806a6d3fc6ad656ae5166d9e2de88b4068"`
[INFO] running `"docker" "rm" "-f" "eb700b57d2694fc32285a14989aa29806a6d3fc6ad656ae5166d9e2de88b4068"`
[INFO] [stdout] eb700b57d2694fc32285a14989aa29806a6d3fc6ad656ae5166d9e2de88b4068