[INFO] updating cached repository moonglum/explore
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/moonglum/explore
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/moonglum/explore" "work/ex/beta-1.38-1/sources/1.37.0/gh/moonglum/explore"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/moonglum/explore'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/moonglum/explore" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moonglum/explore"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moonglum/explore'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] edbf4c09994b7a0e8538503ac41d66015ba4c4d3
[INFO] sha for GitHub repo moonglum/explore: edbf4c09994b7a0e8538503ac41d66015ba4c4d3
[INFO] validating manifest of moonglum/explore 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 moonglum/explore 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 moonglum/explore
[INFO] finished frobbing moonglum/explore
[INFO] frobbed toml for moonglum/explore written to work/ex/beta-1.38-1/sources/1.37.0/gh/moonglum/explore/Cargo.toml
[INFO] started frobbing moonglum/explore
[INFO] finished frobbing moonglum/explore
[INFO] frobbed toml for moonglum/explore written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moonglum/explore/Cargo.toml
[INFO] crate moonglum/explore 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 moonglum/explore 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/moonglum/explore:/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] dd0d1ccac49acd8ff2bd041d27e5f45b1df46ac1f45bb37c09e9651959814f6d
[INFO] running `"docker" "start" "-a" "dd0d1ccac49acd8ff2bd041d27e5f45b1df46ac1f45bb37c09e9651959814f6d"`
[INFO] [stderr]    Compiling explore v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:22:41
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn iterate_directory(dir: ReadDir, cb: &Fn(&DirEntry) -> Entry) {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DirEntry) -> Entry`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "dd0d1ccac49acd8ff2bd041d27e5f45b1df46ac1f45bb37c09e9651959814f6d"`
[INFO] running `"docker" "rm" "-f" "dd0d1ccac49acd8ff2bd041d27e5f45b1df46ac1f45bb37c09e9651959814f6d"`
[INFO] [stdout] dd0d1ccac49acd8ff2bd041d27e5f45b1df46ac1f45bb37c09e9651959814f6d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/moonglum/explore:/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] 630c25d0e200f35d231c86e88fd2500c869acb026667fc4b006a90ac67135f9a
[INFO] running `"docker" "start" "-a" "630c25d0e200f35d231c86e88fd2500c869acb026667fc4b006a90ac67135f9a"`
[INFO] [stderr]    Compiling explore v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:22:41
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn iterate_directory(dir: ReadDir, cb: &Fn(&DirEntry) -> Entry) {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DirEntry) -> Entry`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "630c25d0e200f35d231c86e88fd2500c869acb026667fc4b006a90ac67135f9a"`
[INFO] running `"docker" "rm" "-f" "630c25d0e200f35d231c86e88fd2500c869acb026667fc4b006a90ac67135f9a"`
[INFO] [stdout] 630c25d0e200f35d231c86e88fd2500c869acb026667fc4b006a90ac67135f9a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/moonglum/explore:/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] 4a5cb4073daddcc857e525227465a7ab33c5d0347db82d2997b9549e0c36c76b
[INFO] running `"docker" "start" "-a" "4a5cb4073daddcc857e525227465a7ab33c5d0347db82d2997b9549e0c36c76b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/explore-2e703cd790cbd3de
[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" "4a5cb4073daddcc857e525227465a7ab33c5d0347db82d2997b9549e0c36c76b"`
[INFO] running `"docker" "rm" "-f" "4a5cb4073daddcc857e525227465a7ab33c5d0347db82d2997b9549e0c36c76b"`
[INFO] [stdout] 4a5cb4073daddcc857e525227465a7ab33c5d0347db82d2997b9549e0c36c76b