[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-1.37-6/sources/1.36.0/gh/merelinguist/forge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/merelinguist/forge'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/merelinguist/forge" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/merelinguist/forge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of merelinguist/forge 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 merelinguist/forge
[INFO] finished frobbing merelinguist/forge
[INFO] frobbed toml for merelinguist/forge written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 merelinguist/forge 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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 9c2a545cea76249590533dda67a136a56dce21eb373eaae87164d4b1bdc8e1f2
[INFO] running `"docker" "start" "-a" "9c2a545cea76249590533dda67a136a56dce21eb373eaae87164d4b1bdc8e1f2"`
[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 5.32s
[INFO] running `"docker" "inspect" "9c2a545cea76249590533dda67a136a56dce21eb373eaae87164d4b1bdc8e1f2"`
[INFO] running `"docker" "rm" "-f" "9c2a545cea76249590533dda67a136a56dce21eb373eaae87164d4b1bdc8e1f2"`
[INFO] [stdout] 9c2a545cea76249590533dda67a136a56dce21eb373eaae87164d4b1bdc8e1f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 80777199fabf76f85552cdaad8e6eb01c0ac205e92803b64ecb39ae37522f00d
[INFO] running `"docker" "start" "-a" "80777199fabf76f85552cdaad8e6eb01c0ac205e92803b64ecb39ae37522f00d"`
[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 0.77s
[INFO] running `"docker" "inspect" "80777199fabf76f85552cdaad8e6eb01c0ac205e92803b64ecb39ae37522f00d"`
[INFO] running `"docker" "rm" "-f" "80777199fabf76f85552cdaad8e6eb01c0ac205e92803b64ecb39ae37522f00d"`
[INFO] [stdout] 80777199fabf76f85552cdaad8e6eb01c0ac205e92803b64ecb39ae37522f00d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] fea506c9f73e0bb61908ff099e5c9086a2570fee632682306daf88791c259784
[INFO] running `"docker" "start" "-a" "fea506c9f73e0bb61908ff099e5c9086a2570fee632682306daf88791c259784"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/forge-24cc37e23f0a6df2
[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" "fea506c9f73e0bb61908ff099e5c9086a2570fee632682306daf88791c259784"`
[INFO] running `"docker" "rm" "-f" "fea506c9f73e0bb61908ff099e5c9086a2570fee632682306daf88791c259784"`
[INFO] [stdout] fea506c9f73e0bb61908ff099e5c9086a2570fee632682306daf88791c259784