[INFO] updating cached repository katharostech/PolyFS
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/katharostech/PolyFS
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/katharostech/PolyFS" "work/ex/beta-1.38-1/sources/1.37.0/gh/katharostech/PolyFS"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/katharostech/PolyFS'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/katharostech/PolyFS" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/katharostech/PolyFS"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/katharostech/PolyFS'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c5565176634fd6d29c7866fb68526aec5066a4dd
[INFO] sha for GitHub repo katharostech/PolyFS: c5565176634fd6d29c7866fb68526aec5066a4dd
[INFO] validating manifest of katharostech/PolyFS 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 katharostech/PolyFS 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 katharostech/PolyFS
[INFO] finished frobbing katharostech/PolyFS
[INFO] frobbed toml for katharostech/PolyFS written to work/ex/beta-1.38-1/sources/1.37.0/gh/katharostech/PolyFS/Cargo.toml
[INFO] started frobbing katharostech/PolyFS
[INFO] finished frobbing katharostech/PolyFS
[INFO] frobbed toml for katharostech/PolyFS written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/katharostech/PolyFS/Cargo.toml
[INFO] crate katharostech/PolyFS 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 katharostech/PolyFS 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/katharostech/PolyFS:/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] 821cc57fc7d17abcf56bab2c47cc53e52eb978fd098a63642ebd88dbd721918f
[INFO] running `"docker" "start" "-a" "821cc57fc7d17abcf56bab2c47cc53e52eb978fd098a63642ebd88dbd721918f"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling libsqlite3-sys v0.12.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling bincode v1.1.3
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling syslog v4.0.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling winconsole v0.10.0
[INFO] [stderr]    Compiling colored v1.8.0
[INFO] [stderr]    Compiling fern v0.5.8
[INFO] [stderr]    Compiling diesel_derives v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling diesel v1.4.2
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_yaml v0.8.9
[INFO] [stderr]    Compiling migrations_internals v1.4.0
[INFO] [stderr]    Compiling migrations_macros v1.4.0
[INFO] [stderr]    Compiling diesel_migrations v1.4.0
[INFO] [stderr]    Compiling polyfs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cli/config.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut config;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 17s
[INFO] running `"docker" "inspect" "821cc57fc7d17abcf56bab2c47cc53e52eb978fd098a63642ebd88dbd721918f"`
[INFO] running `"docker" "rm" "-f" "821cc57fc7d17abcf56bab2c47cc53e52eb978fd098a63642ebd88dbd721918f"`
[INFO] [stdout] 821cc57fc7d17abcf56bab2c47cc53e52eb978fd098a63642ebd88dbd721918f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/katharostech/PolyFS:/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] 0f437e87bdf29a39b721317fe5780bee0b23de1e80cdfca0e37de7103141ed37
[INFO] running `"docker" "start" "-a" "0f437e87bdf29a39b721317fe5780bee0b23de1e80cdfca0e37de7103141ed37"`
[INFO] [stderr]    Compiling polyfs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cli/config.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut config;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `"docker" "inspect" "0f437e87bdf29a39b721317fe5780bee0b23de1e80cdfca0e37de7103141ed37"`
[INFO] running `"docker" "rm" "-f" "0f437e87bdf29a39b721317fe5780bee0b23de1e80cdfca0e37de7103141ed37"`
[INFO] [stdout] 0f437e87bdf29a39b721317fe5780bee0b23de1e80cdfca0e37de7103141ed37
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/katharostech/PolyFS:/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] 6d384ea5664847896d4cf0c3e8bc5fe7137d8e58c1ee75b040c86d56d31900fb
[INFO] running `"docker" "start" "-a" "6d384ea5664847896d4cf0c3e8bc5fe7137d8e58c1ee75b040c86d56d31900fb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polyfs-ef30e0702a372750
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test app::backends::sqlite::kv::test::list_keys ... ok
[INFO] [stdout] test app::backends::sqlite::kv::test::delete_key ... ok
[INFO] [stdout] test app::backends::sqlite::kv::test::get_nothing ... ok
[INFO] [stdout] test app::backends::sqlite::kv::test::set_and_get ... ok
[INFO] [stdout] test app::backends::sqlite::kv::test::set_and_update_key ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polyfs-7987e6a076c679d8
[INFO] [stderr]    Doc-tests polyfs
[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] [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" "6d384ea5664847896d4cf0c3e8bc5fe7137d8e58c1ee75b040c86d56d31900fb"`
[INFO] running `"docker" "rm" "-f" "6d384ea5664847896d4cf0c3e8bc5fe7137d8e58c1ee75b040c86d56d31900fb"`
[INFO] [stdout] 6d384ea5664847896d4cf0c3e8bc5fe7137d8e58c1ee75b040c86d56d31900fb