[INFO] updating cached repository erochest/file-extender
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/erochest/file-extender
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/erochest/file-extender" "work/ex/beta-1.37-6/sources/1.36.0/gh/erochest/file-extender"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/erochest/file-extender'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/erochest/file-extender" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erochest/file-extender"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erochest/file-extender'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0dc8b752a9e46498ba1debc1202a7ac507bbd8ed
[INFO] sha for GitHub repo erochest/file-extender: 0dc8b752a9e46498ba1debc1202a7ac507bbd8ed
[INFO] validating manifest of erochest/file-extender 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 erochest/file-extender 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 erochest/file-extender
[INFO] finished frobbing erochest/file-extender
[INFO] frobbed toml for erochest/file-extender written to work/ex/beta-1.37-6/sources/1.36.0/gh/erochest/file-extender/Cargo.toml
[INFO] started frobbing erochest/file-extender
[INFO] finished frobbing erochest/file-extender
[INFO] frobbed toml for erochest/file-extender written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erochest/file-extender/Cargo.toml
[INFO] crate erochest/file-extender 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing erochest/file-extender 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/erochest/file-extender:/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] 58bdd7be9379049ac7803623bec7500b175d20c2cea5e12f8b8daff581a184bd
[INFO] running `"docker" "start" "-a" "58bdd7be9379049ac7803623bec7500b175d20c2cea5e12f8b8daff581a184bd"`
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]    Compiling magic-sys v0.2.0
[INFO] [stderr]    Compiling clap v2.31.1
[INFO] [stderr]    Compiling magic v0.12.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling file-extender v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.27s
[INFO] running `"docker" "inspect" "58bdd7be9379049ac7803623bec7500b175d20c2cea5e12f8b8daff581a184bd"`
[INFO] running `"docker" "rm" "-f" "58bdd7be9379049ac7803623bec7500b175d20c2cea5e12f8b8daff581a184bd"`
[INFO] [stdout] 58bdd7be9379049ac7803623bec7500b175d20c2cea5e12f8b8daff581a184bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/erochest/file-extender:/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] 9c57acb4c62f37257a39469595c662bc93d10ff12b347a59a6d2c23affe18b52
[INFO] running `"docker" "start" "-a" "9c57acb4c62f37257a39469595c662bc93d10ff12b347a59a6d2c23affe18b52"`
[INFO] [stderr]    Compiling file-extender v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::DirEntry`
[INFO] [stderr]   --> src/walker.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     use std::fs::DirEntry;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/walker.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     use std::io;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `"docker" "inspect" "9c57acb4c62f37257a39469595c662bc93d10ff12b347a59a6d2c23affe18b52"`
[INFO] running `"docker" "rm" "-f" "9c57acb4c62f37257a39469595c662bc93d10ff12b347a59a6d2c23affe18b52"`
[INFO] [stdout] 9c57acb4c62f37257a39469595c662bc93d10ff12b347a59a6d2c23affe18b52
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/erochest/file-extender:/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] c8f1dbe0be5ee9c88bf35de0ed26f07b0c651e87ec710db1e48602fc82bf93ad
[INFO] running `"docker" "start" "-a" "c8f1dbe0be5ee9c88bf35de0ed26f07b0c651e87ec710db1e48602fc82bf93ad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_extender-9620344fccc1ad6f
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test walker::test::test_returns_directories_directly_in_input_directories ... ok
[INFO] [stdout] test walker::test::test_returns_the_input_directory ... ok
[INFO] [stdout] test walker::test::test_returns_only_the_input_file ... ok
[INFO] [stdout] test walker::test::test_returns_nested_files ... ok
[INFO] [stdout] test walker::test::test_returns_nested_directories ... ok
[INFO] [stdout] test walker::test::test_returns_files_directly_in_input_directory ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_extender-25455c8ccc3a0a7e
[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] [stderr]    Doc-tests file-extender
[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" "c8f1dbe0be5ee9c88bf35de0ed26f07b0c651e87ec710db1e48602fc82bf93ad"`
[INFO] running `"docker" "rm" "-f" "c8f1dbe0be5ee9c88bf35de0ed26f07b0c651e87ec710db1e48602fc82bf93ad"`
[INFO] [stdout] c8f1dbe0be5ee9c88bf35de0ed26f07b0c651e87ec710db1e48602fc82bf93ad