[INFO] updating cached repository memhak/textstat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/memhak/textstat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/memhak/textstat" "work/ex/beta-1.38-1/sources/1.37.0/gh/memhak/textstat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/memhak/textstat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/memhak/textstat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/memhak/textstat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/memhak/textstat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4b7fda0a61d33924b2e4de2c67514756edb10cd8
[INFO] sha for GitHub repo memhak/textstat: 4b7fda0a61d33924b2e4de2c67514756edb10cd8
[INFO] validating manifest of memhak/textstat 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 memhak/textstat 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 memhak/textstat
[INFO] finished frobbing memhak/textstat
[INFO] frobbed toml for memhak/textstat written to work/ex/beta-1.38-1/sources/1.37.0/gh/memhak/textstat/Cargo.toml
[INFO] started frobbing memhak/textstat
[INFO] finished frobbing memhak/textstat
[INFO] frobbed toml for memhak/textstat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/memhak/textstat/Cargo.toml
[INFO] crate memhak/textstat 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 memhak/textstat against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/memhak/textstat:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b96fd7923ca13f63c133b66fd6e1ea26a3f1c2e3404e54d9eaf7306acf2f08b8
[INFO] running `"docker" "start" "-a" "b96fd7923ca13f63c133b66fd6e1ea26a3f1c2e3404e54d9eaf7306acf2f08b8"`
[INFO] [stderr]    Compiling textstat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `word_length` is never read
[INFO] [stderr]   --> src/main.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut word_length: usize = 0; // length of the current words
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "b96fd7923ca13f63c133b66fd6e1ea26a3f1c2e3404e54d9eaf7306acf2f08b8"`
[INFO] running `"docker" "rm" "-f" "b96fd7923ca13f63c133b66fd6e1ea26a3f1c2e3404e54d9eaf7306acf2f08b8"`
[INFO] [stdout] b96fd7923ca13f63c133b66fd6e1ea26a3f1c2e3404e54d9eaf7306acf2f08b8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/memhak/textstat:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d786015ec87d5ab3dbdadd4768f5c7c102170843d0b67df0e96c70a094965d7e
[INFO] running `"docker" "start" "-a" "d786015ec87d5ab3dbdadd4768f5c7c102170843d0b67df0e96c70a094965d7e"`
[INFO] [stderr]    Compiling textstat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `word_length` is never read
[INFO] [stderr]   --> src/main.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut word_length: usize = 0; // length of the current words
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "d786015ec87d5ab3dbdadd4768f5c7c102170843d0b67df0e96c70a094965d7e"`
[INFO] running `"docker" "rm" "-f" "d786015ec87d5ab3dbdadd4768f5c7c102170843d0b67df0e96c70a094965d7e"`
[INFO] [stdout] d786015ec87d5ab3dbdadd4768f5c7c102170843d0b67df0e96c70a094965d7e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/memhak/textstat:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1ee243e02d0d3adae5ca1d409916095bff7eaaccff2663578fd30564cae783bf
[INFO] running `"docker" "start" "-a" "1ee243e02d0d3adae5ca1d409916095bff7eaaccff2663578fd30564cae783bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/textstat-da3c74f1c830ec5e
[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" "1ee243e02d0d3adae5ca1d409916095bff7eaaccff2663578fd30564cae783bf"`
[INFO] running `"docker" "rm" "-f" "1ee243e02d0d3adae5ca1d409916095bff7eaaccff2663578fd30564cae783bf"`
[INFO] [stdout] 1ee243e02d0d3adae5ca1d409916095bff7eaaccff2663578fd30564cae783bf